JP6282120B2 - Automatic valve device inspection system - Google Patents

Description

The present invention relates to an automatic valve device inspection system for inspecting an automatic valve device of a water spray facility installed in a tunnel or the like.

  2. Description of the Related Art Conventionally, emergency facilities have been installed in tunnels for exclusive use of automobiles and the like in order to protect people and vehicles from fire accidents that occur in the tunnel. Such emergency facilities include fire detectors and emergency telephones for fire monitoring and reporting, fire hydrant devices for fire extinguishing and fire prevention, water spray heads and automatic valve devices for tunnel protection A water spray facility equipped with the above is provided.

  The water spray equipment is installed with an automatic valve device at intervals of, for example, 50 meters, like the fire hydrant device, and one automatic valve device has a function of spraying water from a plurality of water spray heads arranged at intervals of, for example, 5 meters. Water is sprayed from the water spraying head by setting a plurality of protection zones in a predetermined distance unit in the tunnel and opening the automatic valve device corresponding to the protection zone adjacent to the protection zone where the fire is detected in the event of a fire.

  The emergency facilities in such tunnels are regularly inspected once every six months or once a year. When inspecting the automatic valve device of the water spray equipment, the inspector goes out into the tunnel and closes the test water control valve provided on the secondary side of the automatic valve by operating the handle. Prepare a path for test water discharge from the pipe between the water valves to the drainage system. In this state, start the automatic valve and discharge the test water to the drainage system without actually discharging water from the water spray head to check the operation performance. . To check the performance, install a test pressure gauge or pressure sensor on the secondary side of the automatic valve device, open the automatic valve by manually or remotely opening the start valve, and adjust the discharge pressure of the pressure regulating valve. Check the adjustment with a pressure gauge.

  When the inspection is completed, the start valve is closed to close the automatic valve, and the automatic control valve on the secondary side of the closed automatic valve is reopened to return to the steady state.

  By the way, when inspecting the automatic valve device, in order to save time and effort for the inspector to go into the tunnel and open and close the test water control valve etc., it is remotely controlled by sending a control signal to the automatic valve device remotely. There has been proposed an inspection device for an automatic valve device that can be controlled by opening and closing a test water control valve or the like.

  As such a water control valve for testing, a ball valve with a water control mechanism on the secondary side of the automatic valve can be considered. Although the area is small and the maintenance valve body and the ball valve are closed when the test water is discharged, the test water is discharged from the secondary side of the automatic valve to the drainage system. During normal spraying from the head, even if the secondary pressure by the automatic valve is regulated to the specified pressure, the flow loss when the test water control valve is fully opened is small, so the pressure loss increases, and the water spray head There is a problem that the spraying pressure is lowered and the planned spraying performance cannot be obtained, or in order to obtain the performance, the supply pressure on the primary side has to be increased.

  In order to solve this problem, it is conceivable to provide, for example, a butterfly valve on the secondary side of the automatic valve that can ensure a sufficient flow area when opened, and the butterfly valve is provided with an actuator for remotely opening and closing the valve. It will be.

Generally, pneumatic actuators that use air pressure are used as actuators for opening and closing butterfly valves. However, in tunnel automatic valve equipment, installing air pressure supply equipment separately increases equipment costs and operating costs. Therefore, it is better to use a hydraulic actuator that uses pressurized water supplied from the fire pump equipment.

JP 2002-126120 A

  However, in such an automatic valve device in which the test water control valve arranged on the secondary side of the automatic valve is driven to open and close by the hydraulic actuator, the test water control valve is performed once a year, for example. It operates only in the case of inspection by remote control, otherwise it keeps the open state, which is the normal monitoring state, and if the inspection period of the automatic valve device is long like this, the fully open position is maintained in the normal monitoring state. When the valve body of the test water control valve is stuck, the test water control valve does not move even if an attempt is made to drive the hydraulic actuator in the next inspection, making the inspection impossible.

  To solve this problem, it is sufficient to increase the number of inspections of the automatic valve device. However, the amount of water discharged due to the test water discharge by inspection increases, and there are many mountainous areas where tunnels are installed. However, if the water from the water source collected by inspection is used, it will take time to recover, and the operation of the water spray equipment cannot be guaranteed during that time.

  In addition, when the automatic valve device is inspected remotely, since the remote control is performed from the center side, the inspector cannot fully grasp the situation at the site, for example, the test water control valve is stuck. If the process ends abnormally without being fully closed, there is a problem that it takes time and effort to grasp the cause.

It is an object of the present invention to provide an automatic valve device inspection system that prevents sticking of a test water control valve when inspecting an automatic valve device and makes it possible to easily recognize the operating state of the automatic valve device during the inspection. And

The present invention
An automatic valve that supplies pressurized water to the water spray nozzle and sprinkles water;
A pilot valve that opens and controls the automatic valve when spraying water or testing water,
A water control valve for testing which is arranged on the secondary side of the automatic valve, which is opened during normal operation and closed during test water discharge;
In an automatic valve device inspection system for remotely inspecting an automatic valve device equipped with
An automatic valve device inspection instruction unit that operates and inspects the automatic valve device by a remote control instruction;
A test water control valve inspection instruction unit that opens and closes the test water control valve according to a remote control instruction;
Equipped with a,
When starting the inspection, the automatic valve device inspection instruction section and the test water control valve inspection instruction section include a system diagram of the automatic valve device and an operation part necessary for the inspection of the automatic valve device on the display screen. When the screen is displayed and inspection is started by operating the operation part, the operation state of the automatic valve device is reflected and displayed on the inspection screen .

  Furthermore, an inspection management unit is provided that sets a first inspection cycle of the automatic valve device inspection instruction unit and sets a second inspection cycle shorter than the first inspection cycle as an inspection cycle of the test water control valve inspection instruction unit.

The inspection management unit records the inspection history of the automatic valve device inspection instruction unit and the test water control valve inspection instruction unit.

When the automatic valve device inspection instruction section and the test water control valve inspection instruction section detect that the test water control valve is fully open or fully closed, the automatic valve device inspection instruction section and the test water control valve inspection instruction section indicate a fully open state or a fully closed state near the test water control valve in the system diagram. indicate.

  According to the present invention, in addition to the automatic valve device inspection instruction unit for remotely instructing inspection of the automatic valve device, the test water control valve inspection instruction unit for newly instructing remote inspection of the test water control valve is provided. Even if the inspection of the automatic valve device is a long inspection cycle such as once a year, the test water control valve is, for example, four times a year (of which one is included in the inspection of the automatic valve device). The test water control valve can be driven to open and close with a short inspection cycle, and abnormalities such as sticking due to the valve body of the test water control valve being held in the open position for a long period of time can be eliminated by opening and closing the drive. , Guarantees the closing operation of the test water control valve when inspecting the automatic valve device, and the automatic valve opening control ensures that the pressurized water flows to the drain side without being discharged into the tunnel, and operates by detecting the discharge pressure The performance can be confirmed.

  Further, even if the test water control valve inspection instruction section with a short inspection cycle is used to open and close the test water control valve, since there is almost no water drainage, there is no problem that the water source is temporarily depleted. Even when the test water control valve and the check valve are switched and the water pressure actuator is stroked to open and close the test water control valve, the water drained by the inspection is only the water discharged by switching the water pressure actuator. The amount of water drained by water will be very small, and even if the number of inspections of the water control valve for testing is increased, the amount of water drained will greatly increase and the water source will be temporarily depleted if the number of inspections of the automatic valve device is increased. Such a problem does not occur.

In addition, when checking the automatic valve device and the test water control valve, the display unit displays a system diagram of the automatic valve device and an inspection screen including the operation parts necessary for the inspection. During the inspection, the operating state of the automatic valve device is displayed. This change is reflected on the inspection screen, and even in remote inspection, the operation state accompanying the inspection of the automatic valve device at the tunnel site can be properly grasped on the center side. If the inspection ends abnormally due to a failure, it can be recognized from the display of the inspection screen that the test water control valve is not fully closed, so that the cause of the abnormal end can be recognized by the test water control valve. Can respond.

Explanatory drawing which showed the outline of the water spraying equipment provided with the automatic valve apparatus inspection system by this invention Explanatory drawing which showed embodiment of the automatic valve apparatus provided in FIG. Explanatory drawing which took out the hydraulic actuator provided in the water control valve for a test provided in FIG. 2, and showed embodiment Explanatory drawing which showed the test water discharge operation in embodiment of FIG. The block diagram which showed the detail of the terminal unit provided in the center apparatus and automatic valve apparatus of FIG. Explanatory drawing which showed the inspection screen at the time of starting the inspection in the center apparatus of FIG. Explanatory drawing which showed the inspection screen at the time of closing operation of the water control valve for a test following FIG. Explanatory drawing which performed the opening operation of the pilot valve following FIG. 7, and showed the inspection screen during test water discharge The flowchart which showed the outline of the process by the inspection management part provided in the center apparatus of FIG. The flowchart which showed the outline of the automatic valve apparatus check process in step S5 of FIG. The flowchart which showed the outline of the water control valve check process for a test in FIG.9 S7

  FIG. 1 is an explanatory view showing an outline of a water spray facility equipped with an automatic valve device inspection system according to the present invention. In FIG. 1, the automatic valve device 1 is installed at an interval of 50 meters, for example, in a space that is framed with respect to the concrete frame on the side wall of the tunnel. A water supply pipe 8 is connected to the primary side of the automatic valve device 1, and the water supply pipe 8 is filled with pressurized water (pressure fire extinguishing water) having a predetermined pressure range, for example, a range of 0.7 MPa to 1.77 MPa.

  A head pipe 3 is provided on the secondary side of the automatic valve device 1. The head pipe 3 rises along the concrete side wall and then branches in the longitudinal direction. A plurality of water spray heads 4 are provided at predetermined intervals in the head pipe 3. It is connected.

  The automatic valve device 1 is provided with a terminal unit 2 and is connected to a center device 5 via a transmission path 9. The terminal unit 2 receives a message including a water spray activation command from the center device 5 and activates the automatic valve device 1 to sprinkle water from the water spray head 4. After activation, the terminal unit 2 transmits a message including the water discharge pressure detected by the pressure sensor. The data is transmitted to the center device 5 and the operation of the automatic valve device 1 is displayed on the center device 5 side.

  Further, the terminal unit 2 is activated after receiving a message including a test water discharge start command accompanying a remote inspection operation from the center device 5 and operating the automatic valve device 1 in a test water discharge enabled state. Without performing the test, the test water is supplied to the drainage side, and a message including the water discharge pressure detected by the pressure sensor provided in the automatic valve device 1 is transmitted to the center device 5 during the test water discharge. The operation during the test water discharge of the valve device 1 is displayed.

  A pump control panel 6 and a disaster prevention reception panel 7 are connected to the center device 5 by signal lines. The pump control panel 6 receives the pump activation signal accompanying the activation of the automatic valve device 1 or the test water discharge from the center device 5, operates the pump equipment, and supplies pressurized water to the water supply pipe 8 that leads to the automatic valve device 1.

  The disaster prevention reception board 7 receives a fire signal from a fire detection device installed in a tunnel (not shown) and issues a fire alarm, and outputs a fire signal to the center device 5 in conjunction with the fire alarm. The center device 5 causes the automatic valve device 1 corresponding to the fire occurrence area to be remotely activated. The center device 5 may be integrated with the disaster prevention receiving board 7 by incorporating its function.

  FIG. 2 is an explanatory view showing an embodiment of the automatic valve device according to the present invention provided in FIG. In FIG. 2, the automatic valve device 1 includes an automatic valve 10 having a valve body 22 that can be opened and closed. The automatic valve 10 is closed during normal operation, and a water supply pipe 8 is connected to the primary side and filled with pressurized water. ing.

  A test water control valve 11 is provided on the secondary side of the automatic valve 10, and a plurality of water spray heads 4 are connected to the secondary side via the head pipe 3 as shown in FIG. 1. The test water control valve 11 is fully open at the time of steady operation, and is closed when the automatic valve device is inspected, and the test water is discharged to the drain pipe without actually spraying water from the water spray head 4.

  Here, a pressure control mechanism of the automatic valve 10 and a control device therefor will be described. The pressure control mechanism 14 of the automatic valve 10 has a piston 16 slidably accommodated in a cylinder chamber 18. The piston 16 is connected to a valve body 22 and is biased in a valve closing direction by a return spring 20 provided on the left side of the piston 16 and is closed in a steady state. When the automatic valve 10 is opened, pressurized water is supplied to the cylinder chamber 18 on the right side of the piston 16 to open the valve body 22 by moving it to the left side against the return spring 20.

  The automatic valve pressure regulating valve 12 monitors the pressure in the secondary side pipe of the automatic valve 10 and controls the opening degree of the valve body 22 of the automatic valve 10 so as to maintain the secondary side pressure at a predetermined pressure. Device. The automatic valve pressure regulating valve 12 has four ports, a primary side port P1 communicating with the primary side of the automatic valve 10, a secondary side port P2 communicating with the secondary side of the automatic valve 10, and a pilot port PL. The cylinder port CL communicates with the cylinder chamber 18 of the automatic valve. When the automatic valve 10 is closed, the primary port P1 and the cylinder port CL communicate with each other, and the communication state between the primary port P1 and the secondary port P2 is closed. Further, the cylinder port CL and the secondary port P2 communicate with each other so that an extremely small amount flows compared to the amount of water when the other ports communicate with each other. The automatic valve pressure regulating valve 12 takes the secondary side pressurized water into the pilot port PL and monitors the secondary side pressure.

  The operation at the time of water spraying to open the automatic valve 10 from a constant time is performed by opening the pilot valve 30 using an electric valve by remote activation from the center device 5. The manual start valve 32 connected in parallel with the pilot valve 30 can also be opened manually. When the pilot valve 30 is opened, the primary pressurized water is supplied to the stop valve 26, the pilot valve 30, the automatic valve pressure regulating valve 12 (input from the port P 1 and output from the port CL) and the orifice 28. It is supplied to the space on the right side of the piston 16 in the cylinder chamber 18, strokes the piston 16 to the left side, lifts and releases the valve element 22 from the valve seat, and supplies pressurized water to the secondary side of the automatic valve 10. Water is sprayed from the water spray head 4 into the tunnel.

  If pressurized water continues to be supplied into the cylinder chamber 18 on the right side of the piston 16, the automatic valve 10 is controlled in the fully open direction, so that the secondary pressure value approaches the primary pressure value. Pressurized water entering the pilot port PL of the automatic valve pressure regulating valve 12 enters the inner diaphragm chamber, and monitors whether the secondary side pressure exceeds the specified pressure by comparing the pressure with the spring provided opposite to the diaphragm. Yes. When the pressurized water on the secondary side rises and the pressure value on the secondary side entering the pilot port PL of the automatic valve pressure regulating valve 12 becomes higher than the specified pressure, the automatic valve pressure regulating valve 12 is connected to the primary port P1. The flow path between the cylinder ports CL is closed, and the communication amount between the cylinder port CL and the secondary side port P2 is increased from that in the normal state.

  Therefore, the supply of pressurized water from the pilot valve 30 through the automatic valve pressure regulating valve 12 to the cylinder chamber 18 of the automatic valve 10 is stopped, and the pressurized water in the cylinder chamber 18 enters the cylinder port CL of the automatic valve pressure regulating valve 12. The pressure is reduced by discharging to the secondary side through the secondary port P2, and the opening degree of the valve element 22 is reduced by the return spring 20 returning to the right side of the piston 16. As a result, the secondary pressure value decreases and approaches the specified pressure value.

  When the secondary side pressure value becomes smaller than the specified pressure value, the primary port P1 and the cylinder port CL communicate with each other, and the communication state between the cylinder port CL and the secondary side port P2 is in a steady state. To narrow. As a result, the primary pressurized water of the automatic valve 10 passing through the pilot valve 30 enters the cylinder chamber 18, and the automatic valve 10 again moves in the opening direction, thereby increasing the opening of the valve body 22 and increasing the secondary pressure. The secondary side pressure is adjusted to a specified pressure value by repeating the opening / closing adjustment of the automatic valve 10 by the automatic valve pressure adjusting valve 12.

  When it is desired to stop water spraying from the water spray head 4, the pilot valve 30 is remotely controlled to be closed. When the pilot valve 30 is closed, the valve body 22 is moved in the closing direction by the return spring 20 of the automatic valve 10, and the pressurized water in the cylinder chamber 18 enters from the cylinder port CL of the pressure regulating valve 12 for the automatic valve, and the secondary pressure decreases. By doing so, it flows to the secondary side through the narrow communication state of the cylinder port CL and the secondary side port P2 of the automatic valve pressure regulating valve 12 which is in a steady state, and the valve body 22 is gently closed. In addition, the starting operation and the stopping operation of the automatic valve 10 at the time of test water discharge are the same as at the time of water spraying.

  Next, the test water control valve 11 will be described. In the present embodiment, the test water control valve 11 uses a butterfly valve having a large flow area when fully opened and a small pressure loss. In addition, as a valve with a large flow area when fully opened and a small pressure loss, there is a ball valve other than the butterfly valve, and a ball valve may be used instead of the butterfly valve.

  The test water control valve 11 is provided with a hydraulic actuator 34 having a piston / cylinder mechanism for remote opening / closing operation. Details of the hydraulic actuator 34 are shown in FIG. A piston 62 is slidably provided inside the cylinder 60 of FIG. 3, a guide roller 66 is provided at the tip of a piston rod 64 taken out from the piston 62 to the outside, and the rotation is connected to the valve rotation shaft 72 of the butterfly valve body 24. A slider 68 provided at the tip of the lever 70 is fitted into the guide roller 66 of the piston rod 64. Here, by connecting the guide roller 66 of the piston rod 64 and the slider 68 of the rotating lever 70, a conversion mechanism for converting the linear motion of the piston 62 into the rotational motion of the valve rotating shaft 72 is configured.

  The cylinder 60 is divided by a piston 62 into a first cylinder chamber 61a to which pressurized water is supplied when the valve is opened, and a second cylinder chamber 61b to which pressurized water is supplied when the valve is closed. When the test water control valve 11 is opened, pressurized water is supplied to the first cylinder chamber 61a as indicated by an arrow A, and at the same time, the second cylinder chamber 61b is communicated to the drain side as indicated by a dotted arrow a.

  Therefore, the pressurized water supplied to the first cylinder chamber 61 a causes the piston 62 to move upward while draining the water in the second cylinder chamber 61 b, and the guide roller 66 of the piston rod 64 and the slider 68 of the rotating lever 70 are connected. The linear motion is converted into the left rotational motion of the valve rotation shaft 72 via the conversion mechanism, and the butterfly valve body 24 is opened.

  When the test water control valve 11 is closed, on the contrary, pressurized water is supplied to the second cylinder chamber 61b as shown by an arrow B, and at the same time, the first cylinder chamber 61a communicates with the drain side as shown by a dotted arrow b. To do.

  For this reason, the pressurized water supplied to the second cylinder chamber 61b causes the piston 62 to move downward while draining the water in the first cylinder chamber 61a, and the guide roller 66 of the piston rod 64 and the slider 68 of the rotating lever 70 are connected. The linear motion is converted into the right rotational motion of the valve rotation shaft 72 via the conversion mechanism, and the butterfly valve body 24 is closed. The rotation angle of the valve rotation shaft 72 accompanying this opening / closing operation is approximately 90 degrees.

  The hydraulic actuator is not limited to that shown in FIG. 3, and an appropriate piston / cylinder mechanism can be used.

  Referring to FIG. 2 again, the hydraulic actuator 34 provided in the test water control valve 11 is provided with a limit switch 25, which detects the fully open position and the fully closed position of the butterfly valve body, and detects the fully open detection signal or the fully closed detection. Output a signal. Specifically, a limit switch that is turned on at the fully open position such as the piston rod 64 or the rotation lever 70 shown in FIG. 3 and a limit switch that is turned on at the fully closed position are provided.

  In the present embodiment, a water pressure actuator pressure adjusting valve 36, a check valve 40, and a test water discharge valve 42 are provided as devices for driving and controlling the water pressure actuator 34 provided in the test water control valve 11. Note that the test water discharge valve 42 originally forms a path to the drain side in the test water discharge of the automatic valve 10, but is also used for switching the path to the drain side when the hydraulic actuator 34 is opened and closed. Yes.

  The pressure adjustment valve 36 for the water pressure actuator introduces the pressurized water from the water supply pipe 8 to the automatic valve 10 through the stop valve 26 and supplies the pressurized water adjusted to a predetermined pressure lower than the introduction pressure to the port a of the check valve 40. . At this time, an orifice 38 or a needle valve may be provided on the primary side or the secondary side of the check valve 40 in order to control the moving speed of the piston 62 of the hydraulic actuator 34.

  Here, the primary pressurized water has a relatively high pressure range of, for example, 0.70 MPa to 1.77 MPa. When such a high water pressure is applied to the hydraulic actuator 34, for example, the allowable maximum pressure (withstand pressure) is, for example, 2.66 MPa. The hydraulic actuator 34 is increased in size and cost is increased.

  On the other hand, in the present embodiment, the set pressure that is adjusted by the pressure adjustment valve 36 for the hydraulic actuator is set to, for example, 0.50 MPa, which is lower than the pressure range of the primary pressurized water, and therefore the hydraulic actuator 34 that is hydraulically driven. The allowable maximum pressure (withstand pressure) can be halved to 1.05 MPa, for example, and the strength of the hydraulic actuator 34 can be reduced correspondingly, and the cost can be reduced by reducing the size and weight.

  The pressure adjustment valve 36 for the hydraulic actuator is such that when either one of the cylinder chambers of the secondary hydraulic actuator 34 is filled with pressurized water, the secondary pressure of the hydraulic actuator pressure adjustment valve 36 is higher than a predetermined pressure. When this occurs, the valve body provided in the pressure adjustment valve 36 for the hydraulic actuator is closed. By closing the water pressure actuator pressure regulating valve 36, the pressurized water is continuously filled in the cylinder chamber on the filling side, so that the open / close state of the test water control valve 11 is maintained.

The check valve 40 is a motorized three-way switching valve that can be operated remotely. Since the test water control valve 11 is kept in a fully open state at all times, the check valve 40 is in a steady position where the port a communicates with the port b, that is, the pressurized water adjusted by the pressure adjustment valve 36 for the hydraulic actuator is used as the hydraulic actuator. 34 is switched to a steady position where the opening operation is performed. In the case of the hydraulic actuator 34 of FIG. 3, this steady position is an open position where pressurized water is supplied to the first cylinder chamber 61a and the piston 62 is stroked upward.

  Further, during the test water discharge, the test water control valve 11 is kept in a fully closed state in order to prevent actual water discharge from the water spray head, so that the check valve 40 disconnects the port b and communicates the port a with the port c. The inspection position is switched to the inspection position where the pressurized water adjusted by the hydraulic actuator pressure adjustment valve 36 is supplied to the hydraulic actuator 34 and closed. In the case of the hydraulic actuator 34 of FIG. 3, this inspection position is a closed position where pressurized water is supplied to the cylinder chamber 61b and the piston 62 is stroked downward.

The test water discharge valve 42 uses an electrically operated three-way switching valve that can be operated remotely. Normally, the valve body 22 of the automatic valve 10 is kept closed, and at the same time, the test water control valve 11 is kept open, and one of the cylinder chambers of the hydraulic actuator 34 provided in the test water control valve 11 is maintained. Therefore, the test water discharge valve 42 is switched to a steady position where the port b is communicated with the port a, that is, a steady position where the port B is communicated with the drain side for opening the hydraulic actuator 34. In the case of the hydraulic actuator 34 shown in FIG. 3, the steady position of the test water discharge valve 42 is a switching position where the water in the second cylinder chamber 61b is drained and the piston 62 is stroked upward to maintain the fully opened state.

  In the test water discharge, the test water control valve 11 is closed to prevent actual water discharge from the water spray head, and then the secondary side pressurized water regulated by the activation of the automatic valve 10 is flowed to the drain side. Water is discharged. For this test water discharge, a test water discharge pipe 55 is drawn from the secondary side of the automatic valve 10 and connected to the port c of the test water discharge valve 42 via the check valve 50.

  For this reason, at the time of test water discharge, the test water discharge valve 42 is switched to an inspection position where the port c communicates with the port a. The inspection position of the test water discharge valve 42 forms a drainage path when the hydraulic actuator 34 is closed to close the test water control valve 11.

That is, the water discharged by the closing operation of the water pressure actuator 34 is added to the port c of the test water discharge valve 42 through the check valve 52 and flows to the drainage side through the port a communicated by switching to the inspection position. . In the case of the hydraulic actuator 34 in FIG. 3, in the closing operation, the water in the first cylinder chamber 61 a is drained through the test water discharge valve 42 and the piston 62 is stroked downward to perform the closing operation.

  When the test water control valve 11 is closed, the automatic valve 10 is controlled to open by remotely opening the pilot valve 30 as will be described later. The water discharge valve 42 is switched to an inspection position where the port c is communicated with the port a to form a test water discharge path. The secondary side pressurized water supplied with regulated pressure to the secondary side of the automatic valve 10 is supplied with the test water discharge pipe 55, Test water discharge that flows to the drain side through the check valve 50 and the test water discharge valve 42 is performed.

  The check valve 52 prevents secondary pressurized water from the test water discharge of the automatic valve 10 from entering the hydraulic actuator 34 that holds the closing operation, and the check valve 50 automatically discharges water from the hydraulic actuator 34. 10 so as not to go around to the secondary side.

An automatic drain valve 54 is provided for the test water discharge pipe 55 drawn from the secondary side of the automatic valve 10. The automatic drain valve 54 is opened in the absence of normal pressure when the automatic valve 10 is closed, and is closed when secondary pressurized water is output from the automatic valve 10 due to test water discharge or water discharge during a real fire. It is provided to drain the water in the head pipe 3 after the water discharge and the water discharge at the time of actual fire are stopped.

  A pressure sensor 44 is provided for the test water discharge pipe 55 drawn from the secondary side of the automatic valve 10. When fire-extinguishing water is sprinkled from the water spray head due to the opening of the automatic valve 10 accompanying the opening of the pilot valve 30, the secondary water discharge pressure is introduced into the pressure sensor 44, and the pressure sensor 44 discharges water from the water spray head. A pressure is detected, and a telegram including discharge pressure detection information is transmitted to the center device 5 of FIG. In response to this, the center device 5 performs a water discharge operation confirmation display based on the water discharge pressure detected by the pressure sensor 44.

  FIG. 4 shows a state in which the automatic valve device is switched to the test water discharge operation by a remote inspection operation in the embodiment of FIG. At the time of test water discharge, first, the inspection valve 40 is switched to an inspection position where the port a communicates with the port c, and the test water discharge valve 42 is also switched to an inspection position where the port c communicates with the port a.

  For this reason, the pressurized water adjusted to a set pressure lower than the primary side pressure by the pressure adjustment valve 36 for the hydraulic actuator is indicated by an arrow in the cylinder chamber side where the hydraulic actuator 34 is closed from the check valve 40 to the second cylinder chamber 61b in FIG. Supplied as shown in B. At the same time, the first cylinder chamber 61a communicates with the drain side via the test water discharge valve 42 as shown by the dotted arrow b, and the water in the first cylinder chamber 61a flows out to the drain side. As a result, the piston 62 strokes downward, the valve rotating shaft 72 is rotated clockwise through the piston rod 64, the guide roller 66, and the rotating lever 70, and the butterfly valve body 24 is rotated to the closed position. The water control valve 11 is closed.

  When the test water control valve 11 is closed and the limit switch 25 detects that the control valve 11 is fully closed, an open control signal is given to the pilot valve 30 to open the pressure control valve 12 and the pressure of the automatic valve 10. Pressure adjustment control for adjusting the secondary side pressure to a predetermined set pressure is performed simultaneously with the opening of the valve body 22 through the operation of the control mechanism 14, and the pressurized water supplied to the secondary side of the automatic valve 10 is the test water discharge. The water can flow through the pipe 55, the check valve 50 and the test water discharge valve 42 to the drainage side, and the test water can be discharged without spraying from the water spray head. It is possible to check whether the water discharge pressure is correct by measuring the pressure in the test water discharge pipe 55 at the time of this test water discharge with the pressure sensor 44.

  FIG. 5 is a block diagram showing details of a terminal unit provided in the center device and the automatic valve device of FIG. This is an example, and the separation and integration of each function can be performed arbitrarily. Each part or all of each function may be executed by software (program) or may be executed by hardware.

  In FIG. 5, the terminal unit 2 on the automatic valve device side is provided with a terminal transmission unit 86 and a terminal processing unit 84. For the terminal processing unit 84, a pilot valve 30, a check valve 40, and a test water discharge valve 42 are used as control loads. In addition, a limit switch (including a fully open detection limit switch and a fully closed detection limit switch) 25, a pressure sensor 44, and a pressure switch 48 are provided as sensors. The terminal processing unit 84 is provided with a water spray control unit 88 and a test water discharge control unit 90 as functions realized by executing a program by the CPU of the computer.

  On the other hand, a center transmission unit 92 and a center processing unit 94 are provided in the center device 5, and a display unit 100, an operation unit 102, an alarm unit 104, and a storage unit 106 are connected to the center processing unit 94. The display unit 100 is configured by, for example, a liquid crystal display panel with a touch panel that also serves as the operation unit 102.

  The center processing unit 94 includes a water spray instruction unit 95, an automatic valve device inspection instruction unit 96, a test water control valve inspection instruction unit 97, and an inspection management unit 98 as functions realized by execution of a program by the CPU of the computer. ing.

  Here, the automatic valve device inspection instruction section 96 and the test water control valve inspection instruction section 97 perform automatic inspection. This automatic inspection includes, for example, sequential inspection, parallel inspection, individual inspection, and the like. If it carries out, according to a predetermined | prescribed inspection procedure, the message | telegram containing a control command will be transmitted, and the test water discharge of an automatic valve apparatus or the opening / closing test of the water control valve for a test will be performed automatically.

  In the inspection system of this embodiment, manual inspection of the automatic valve device is also possible. In manual manual inspection, for example, an inspector operates an operation part displayed on the inspection screen according to a predetermined inspection procedure. Remote inspection is performed, but this function is omitted.

  The water spray instruction unit 95 provided in the center processing unit 94 receives a fire report signal from the disaster prevention receiving board 7 and displays a fire area on the display unit 100 and fires a fire alarm from the alarm unit 104. The person in charge who confirmed the content of the alarm creates a message including a water spray activation command by performing an automatic valve activation operation that designates an automatic valve device corresponding to the fire reporting area by the operation unit 102, and this message is transmitted to the center. The data is transmitted from the unit 92 to the terminal unit 2 on the automatic valve device side through the transmission path 9.

  When a message from the center transmission unit 92 includes a terminal address indicating a transmission destination and a control command indicating a control content, the terminal transmission unit 86 detects that the address acquired from the received message matches the self-address. The message content is analyzed as a valid message (hereinafter referred to as “valid reception”). For example, when the command is a water spray activation command, the water spray control unit 88 outputs an open control signal to the pilot valve 30 to open the operation. By doing so, the automatic valve opening control is performed and water is sprayed from the water spray head.

  Even when the fire is extinguished and the water discharge is stopped after the automatic valve is opened, the water spray instructing unit 95 generates a message including a water discharge stop command based on the automatic valve stop operation by the operation unit 102, and the center transmission unit 92 When the terminal transmission unit 86 receives this message effectively, the water spray control unit 88 outputs a close control signal to the pilot valve 30 to close the automatic valve 10 to stop water spraying from the water spray head. Let

  The automatic valve device inspection instruction unit 96 provided in the center processing unit 94 starts the automatic inspection when the inspector selects the automatic inspection menu from the menu screen of the display unit 100 and selects the automatic valve device to be performed first. An inspection screen is displayed. When the inspection start button on this inspection screen is operated, automatic inspection is started. On the inspection screen of the display unit 100, a system diagram of the automatic valve device to be inspected is displayed and, for example, an inspection start button and an inspection stop button are displayed as operation parts necessary for the inspection of the automatic valve device.

  In addition, the automatic valve device inspection instructing unit 96 checks the operation state of the automatic valve device based on transmission of a message including a control command to the automatic valve device and reception of a message including detection data of the automatic valve device during the inspection. The change is detected, and this is reflected and displayed on the inspection screen of the display unit 100.

  When inspecting the automatic valve device, the automatic valve device inspection instruction unit 96 first transmits a message including a switching control command for switching the test water discharge valve 42 from the steady position to the inspection position to the terminal unit 2 to inspect the test water discharge valve 42. The first cylinder chamber of the hydraulic actuator 34 of the test water control valve 11 is communicated with the drain side.

  Subsequently, the automatic valve device inspection instruction unit 96 transmits a message including a switching control command for switching the inspection valve 40 from the normal position to the inspection position to the terminal unit 2, switches the inspection valve 40 to the inspection position, and performs a test water control valve. The pressurized water from the primary side is supplied to the second cylinder chamber of the eleventh hydraulic actuator 34.

  As a result, the hydraulic actuator 34 strokes the piston toward the closing side, and drives the test water control valve 11 to close. When the test water control valve 11 is fully closed, a message including fully closed detection data detected by the limit switch 25 is effectively received. The fully closed state of the test water control valve 11 is reflected and displayed on the inspection screen.

  When it is detected that the test water control valve 11 is fully closed, the automatic valve device inspection instruction unit 96 transmits a message including an opening control command for the pilot valve 30 to the terminal unit 2 to instruct the opening control of the pilot valve 30. As a result, the pilot valve 30 of the automatic valve device is opened, the pressure regulating valve 12 for the automatic valve is used to perform the pressure regulating opening operation of the automatic valve 10, and a test water discharge is performed to flow pressurized water from the secondary side of the automatic valve 10 to the drain side. To do.

  The execution of the test water discharge is detected by effectively receiving and analyzing a message including ON data of the pressure switch 48, and subsequently receiving and analyzing a message including the pressure detection data of the pressure sensor 44 to analyze the water discharge pressure. If the value is acquired and within the predetermined pressure range, the operation performance is normal, and the inspection management unit 98 stores the inspection date / time, discharge pressure, and the inspection result of normality / abnormality in the inspection history.

  Subsequently, the automatic valve device inspection instructing unit 96 controls each control command for closing control of the pilot valve 30, switching control of the inspection valve 40 to the steady position, and switching control of the test water discharge valve 42 to the steady position for completing the inspection. Is sent to the terminal unit 2 to restore the steady state before the inspection, and the series of inspections is completed.

  The test water control valve inspection instruction unit 97 provided in the center processing unit 94 is when the inspector selects the test water control valve check menu from the menu screen of the display unit 100 and selects the automatic valve device to be performed first. An inspection screen for starting the automatic inspection of the test water control valve 11 is displayed, and when the inspection start button on this inspection screen is operated, the automatic inspection of the test water control valve 11 is started. On the inspection screen of the display unit 100, a system diagram of the automatic valve device to be inspected is displayed and, for example, an inspection start button and an inspection stop button are displayed as operation parts necessary for the inspection of the automatic valve device.

  In addition, during the inspection, the test control valve inspection instruction unit 97 operates the automatic valve device based on transmission of a message including a control command to the automatic valve device and reception of a message including detection data in the automatic valve device. A change in state is detected, and this is reflected and displayed on the inspection screen of the display unit 100.

  When inspecting the test water control valve 11, the test water control valve inspection instructing unit 97 first transmits a message including a switching control command for switching the test water discharge valve 42 from the steady position to the inspection position to the terminal unit 2. The water discharge valve 42 is switched to the inspection position, and the first cylinder chamber of the hydraulic actuator 34 of the test water control valve 11 is communicated with the drain side.

  Subsequently, the test water control valve inspection instructing unit 97 transmits a message including a switching control command for switching the inspection valve 40 from the steady position to the inspection position to the terminal unit 2, switches the inspection valve 40 to the inspection position, and performs the test control. Pressurized water from the primary side is supplied to the second cylinder chamber of the hydraulic actuator 34 of the water valve 11.

  As a result, the hydraulic actuator 34 strokes the piston toward the closing side, and the test water control valve 11 is driven to close. When the test water control valve 11 is fully closed, the electronic message including the fully closed detection data detected by the limit switch 25 is effectively received, and this is analyzed to detect the fully closed state. Further, although water is drained from the cylinder chamber of the hydraulic actuator 34 by the stroke of the piston, the amount is extremely small and does not affect the amount of water of the water source.

  When the test water control valve inspection instructing unit 97 detects that the test water control valve 11 is fully closed, the test water control valve 11 determines that the test water control valve 11 is operating normally, and the inspection date and time are displayed in the inspection history. Memorize inspection results. On the other hand, if the test water control valve 11 is not detected to be fully closed even after a predetermined time has elapsed, the test water control valve inspection instructing unit 97 determines that the test water control valve 11 is abnormal and checks the inspection history. Stores the inspection date and time and the inspection result of the abnormality.

  Subsequently, the test water control valve check instructing unit 97 sends a message including control commands for switching the check valve 40 to a steady position and controlling the test water discharge valve 42 to a steady position to end the check. The data is transmitted to the unit 2, and the test water control valve 11 is restored to the fully opened state before the inspection, and the series of inspections is completed.

  The inspection management unit 98 provided in the center processing unit 94 sets the first inspection cycle T1 of the automatic valve device inspection instruction unit 96, and from the first inspection cycle T1 as the inspection cycle of the test water control valve inspection instruction unit 97. A short second inspection cycle T2 is set, and each time the first inspection cycle T1 and the second inspection cycle T2 are reached, the arrival of each inspection cycle is displayed on the display unit 100 to notify the person in charge. The first inspection period T1 of the automatic valve device inspection instruction unit 96 is set to, for example, one year, and the second inspection period T2 of the test control valve inspection instruction unit 97 is set to, for example, three months.

  As a function of the inspection management unit 98, the arrival of the inspection cycle is notified, and the automatic valve device inspection instruction unit 96 or the test water control valve inspection instruction unit 97 is activated based on the detection of the arrival of the inspection cycle to automatically perform the inspection. You may make it do.

  FIG. 6 is an explanatory diagram showing an inspection screen displayed when automatic inspection is started by the automatic valve device inspection instruction unit 96 of the center device of FIG. In FIG. 6, the inspection screen 110A is composed of a screen with a touch panel. A screen title 112 indicating the automatic valve number to be inspected is displayed on the upper left side, a message display unit 114 is displayed on the right side, and an automatic is displayed in the center. A related piping system diagram 116 including the valve 10 is displayed, a control device display unit 118 for remote control is further displayed below, and an inspection start button 120 for instructing the start of automatic inspection is further displayed below, and the automatic inspection is stopped. An inspection stop button 122 for instructing, an inspection history button 124 for instructing to read and display the inspection history, and a menu screen switching button 126 are displayed.

  When the inspection history button 124 is operated, the inspection history of only the corresponding automatic valve device or all of the automatic valve devices is displayed on the screen in chronological order. In the case of this embodiment, the history of each inspection performed by the automatic valve device inspection instruction unit 96 and the test water control valve inspection instruction unit 97 can be distinguished and displayed.

  The message display section 114 of the inspection screen 110A displayed when the inspection is started displays, for example, “Ready to start the automatic inspection”, and the piping diagram 116 shows the automatic valve device shown in FIG. Corresponding to the embodiment, the piping system diagram 116 displays device names such as an automatic valve, a test water control valve, a test water discharge valve, a check valve, a pilot valve, and a pressure sensor in the vicinity of the corresponding device. .

  When the inspection is started, since the automatic valve device is in a normal monitoring state, the test water discharge valve and the inspection valve in the piping system diagram 116 are in a steady position, and the communication direction by switching is indicated by arrows respectively. Also, as the test water discharge valve and check valve are switched to the steady position, the state where the primary side pressurized water is filled is displayed using a predetermined display color as shown in gray, and the operating state can be understood. I am doing so.

 Pipes that are not filled with pressurized water are displayed in a different display color from the filled portion. Further, since the test water discharge valve and the check valve are in the steady positions, “fully open” is displayed in the vicinity of the test water control valve, and “OFF” is displayed as the operation state of the pressure switch. The measurement value of the pressure sensor 44 can be displayed near the position of the corresponding pressure sensor.

As equipment to the control device display unit 118 that controls for automatic inspection, testing water discharge valve, the names of the inspection valves and pilot valves are displayed are designated by the circled numbers showing the control sequence, the numbered circles piping It is also shown in the system diagram 116 to make it easy to see the correspondence between the control target device and the piping system diagram 116.

  On this inspection screen 110A, the inspector operates the inspection start button 120 to start the automatic inspection.

The automatic valve device inspection instruction unit 96 in FIG. 5 receives a message including a switching control command for switching the test water discharge valve 42 and the inspection valve 40 from the steady position to the inspection position when the operation of the inspection start button 120 on the inspection screen 110A is detected. The electronic message is prepared and transmitted from the center transmission unit 92 to the terminal unit 2 on the automatic valve device side through the transmission path 9. Further, a pump start signal is transmitted to the pump control panel 6 shown in FIG. 1 to start the pump operation, and the water supply pipe 8 is pressurized and supplied with fire-extinguishing water.

  The terminal transmission unit 86 of the terminal unit 2 effectively receives the message from the center device 5 and outputs the message to the test water discharge control unit 90 of the terminal processing unit 84. The test water discharge control unit 90 analyzes the contents of the message and analyzes the test water discharge valve 42. In the case of the inspection switching command, a switching control signal is output to the test water discharge valve 42 to switch to the inspection position, and the first cylinder chamber 61a side of the hydraulic actuator 34 of the test water control valve 11 is communicated with the drain side. To do. In the case of an inspection switching command for the inspection valve 40, the test water discharge control unit 90 outputs a switching control signal to the inspection valve 40 to switch to the inspection position, and the primary pressure water is supplied to the water pressure of the test water control valve 11. The actuator 34 is supplied to the second cylinder chamber 61b side.

  Accordingly, the test water control valve 11 is driven to the fully closed position by the hydraulic actuator 34, and when reaching the fully closed position, the limit switch 25 detects this and is read into the test water discharge control unit 90, and includes the fully closed detection data. A response message is transmitted to the center device 5. Here, when the hydraulic actuator 34 is provided with a full-open limit switch that is turned on when it is fully opened and a full-closed limit switch that is turned on when it is fully closed, the full-closed detection data of the test water control valve 11 is obtained by turning off the full-open limit switch. Data indicating ON of the closed limit switch.

When the automatic valve device inspection instruction unit 96 detects the operation of the inspection start button 120, the automatic inspection device inspection instruction unit 96 switches the first inspection screen 110A in FIG. 6 to the next inspection screen 110B shown in FIG. In the inspection screen 110B of FIG. 7, for example, “Checking that the test water control valve is closed” is displayed on the message display unit 114, and the inspection start button 120 of FIG. The display is switched to the display frame 128 displaying “medium”, and further, the display of the arrow indicating the communication direction in the vicinity of the test water discharge valve and the check valve in the piping system diagram 116 is switched, and the primary side pressurized water indicated in gray is also filled. Switch to the status display.

  In addition, when the automatic valve device inspection instruction unit 96 receives and analyzes the message from the terminal unit 2 and detects the fully closed detection data of the test water control valve 11, the test water control in the piping system diagram 116 is detected. The valve status display is changed from “fully open” in FIG. 6 to “fully closed” in FIG.

  When the automatic valve device inspection instruction unit 96 detects that the test water control valve 11 is fully closed, the automatic valve device inspection instruction unit 96 creates a message including a pilot valve opening control command, and transmits the message from the center transmission unit 92 through the transmission line 9. To the terminal unit 2 on the side.

  When the terminal transmission unit 86 of the terminal unit 2 effectively receives a message from the center device 5 and outputs it to the test water discharge control unit 90, the test water discharge control unit 90 analyzes the received message and detects a pilot valve opening control command. Then, an open control signal is output to the pilot valve 30 to switch to the open position, the pressure regulating valve 12 for the automatic valve performs the pressure regulating opening operation of the automatic valve 10, and the secondary side pressurized water of the automatic valve 10 is supplied to the test discharge pipe 55. And the test water discharge which flows into the waste_water | drain side through the test water discharge valve 42 currently switched to the inspection position is performed.

  When the test water discharge is executed, the secondary pressure of the automatic valve 10 is introduced to the pressure switch 48 and is turned on. The test water discharge control unit 90 reads this and sends a message including the pressure switch on data to the center device 5. To do.

  The automatic valve device inspection instruction unit 96 effectively receives and analyzes the message from the terminal unit 2, and switches the inspection screen 110B of FIG. 7 to the inspection screen 110C of FIG. 8 when pressure switch-on data is detected.

  In the inspection screen 110 </ b> C of FIG. 8, for example, “Checking that the pressure is within the set range” is displayed on the message display unit 114. Further, regarding the piping system diagram 116, since the automatic valve by the pilot valve opening control is controlled by the pressure regulating opening control, the pressurized water flows from the secondary side of the automatic valve to the drainage side via the test water discharge valve. Is displayed in gray (gray). When it is detected that the pressure switch provided in the automatic valve device is on, the pressure switch in the piping system diagram 116 is switched from “OFF” to “ON”.

  Further, in the test water discharge, the secondary pressure of the automatic valve 10 is introduced into the pressure sensor 44, and the pressure detection signal that is the secondary pressure value detected by the pressure sensor 44 is the test water discharge control unit 90. Is sent to the center device 5 including the secondary side detected pressure data.

  The automatic valve device inspection instruction unit 96 of the center device 5 effectively receives and analyzes the message from the terminal unit, thereby detecting the secondary side pressure data and determining whether or not it is within a predetermined set pressure range. If the secondary pressure is within the set pressure range, it is determined to be normal, and if it is outside, it is determined to be abnormal, and the inspection date and time, the secondary pressure and the inspection result are stored as the inspection history. If the inspection result is normal, for example, “automatic inspection normal completion” is stored, and if it is abnormal, for example, “pressure sensor abnormality” is stored.

The automatic valve device inspection instruction unit 96 performs a recovery process after determining the test water discharge pressure and creating the inspection history. The restoration process is performed by transmitting a message including each control command to instruct to close the pilot valve 30, to instruct the check valve 40 to switch to the steady position, and to instruct the test water discharge valve 42 to switch to the steady position. As a result, the automatic valve 11 is controlled to be closed, and then the inspection valve 40 and the test water discharge valve 42 are switched to the steady positions, and the test water control valve 11 is driven to open by driving the hydraulic actuator 34 in the opening direction. Returning to the regular monitoring state, a series of automatic inspections is completed. In this case, the inspection screen returns to the inspection screen 110 before the start of the inspection shown in FIG. 6, and the screen title 112 switches to the next automatic valve device number display, for example, “No. 3 automatic valve”. An inspection will be performed.

On the other hand, regarding the automatic inspection of the test water control valve 11 by the test water control valve inspection instruction unit 97 in the center device 5 of FIG. 5, until the test water control valve 11 is closed and controlled by the automatic valve device inspection instruction unit 96. When the inspection is started, the inspection screen 110A of FIG. 6 is displayed, and the inspection start button 120 of the inspection screen 110A is operated, so that the inspection position is changed from the normal position with respect to the test water discharge valve 42 and the inspection valve 40. In this case, the test water control valve 11 is fully closed. In this case, the inspection screen in FIG. 6 is switched to the inspection screen in FIG.

When the test water control valve inspection instructing unit 97 detects that the test water control valve 11 is fully closed, the inspection date and time and the inspection result of the test water control valve are displayed as the inspection history. Is memorized. On the other hand, if the test water control valve 11 is not completely closed even after a predetermined time has elapsed from the instruction to switch the test water discharge valve 42 and the check valve 40 to the inspection position, the test water control valve 11 is stuck or the like. It is determined that an abnormality has occurred, and the inspection date and time and the inspection result of the test water control valve are stored as the inspection history and “test water control valve inspection abnormal end” is stored.

The automatic valve device inspection instruction unit 96 performs a recovery process after the inspection history creation process for the test water control valve 11 is completed. In the restoration process, an instruction to switch the check valve 40 to the steady position and a control instruction to the steady position of the test water discharge valve 42 are performed by transmitting a message including each control command. As a result, the check valve 40 and the test water discharge valve 42 are switched to the steady positions, and the water pressure actuator 34 is driven in the opening direction to open the test water control valve 11. Ends. In this case, the inspection screen returns to the inspection screen 110 before the start of the inspection shown in FIG. 6, and the screen title 112 is switched to the next automatic valve device number display, for example, “No. 3 automatic valve”. Automatic inspection will be performed.

  FIG. 9 is a flowchart showing an outline of the inspection process by the center device of FIG.

  In FIG. 9, when the center device 5 is started up by turning on the power, initialization and self-diagnosis are performed in step S1. If there is no error, the process proceeds to step S2. The inspection cycle T2 of the water valve 11 is set. The setting of the inspection cycle is, for example, an inspection cycle T1 of the automatic valve device = 1 year, and an inspection cycle T2 of the test water control valve 11 = 3 months. Subsequently, an initial check date and time of the automatic valve device is set in step S3.

  Subsequently, when it is detected in step S4 that the first automatic valve device has reached the inspection date and time, the process proceeds to step S5 to perform automatic valve device inspection processing. In this automatic valve device inspection process, the inspection management unit 98 notifies the arrival of the inspection date and time by displaying a message on the display unit 100, and outputs a start signal to the automatic valve device inspection instruction unit 96 to start the processing. Details of the automatic valve device inspection process in step S5 are shown in the flowchart of FIG.

  When the first automatic valve device inspection process is completed, the process proceeds to step S6, and when the arrival of the inspection period T2 of the test water control valve is detected, the process proceeds to step S7 and the test water control valve inspection process is performed. In this test water control valve inspection process, the inspection management unit 98 notifies the arrival of the inspection date and time by displaying a message on the display unit 100, etc., and outputs a start signal to the test water control valve inspection instruction unit 97 to start the process. Let Details of the test water control valve check process in step S7 are shown in the flowchart of FIG.

  When the arrival of the inspection cycle of the test water control valve is not detected in step S6, the process proceeds to step S8. When the arrival of the inspection cycle T2 of the automatic valve device is detected for the second and subsequent times, the process returns to step S5, and the automatic operation is performed as in the first time. Perform valve device inspection processing.

  With such inspection management, the automatic valve device is inspected once a year, and the test water control valve is inspected three times before the next automatic valve device is inspected every three months. It is possible to prevent abnormalities such as sticking caused by holding the test water control valve in a fully open state for a long period of time.

  FIG. 10 is a flowchart showing an outline of the automatic valve device inspection process in step S5 of FIG. 9, which is performed by the automatic valve device inspection instruction unit 96 provided in the center device 5 of FIG.

  In FIG. 10, the automatic valve device inspection process first displays the inspection screen 110A for performing the automatic inspection shown in FIG. 6 in step S11, and detects the operation of the inspection start button 120 on the inspection screen 110A in step S12. Proceeding to S13, the switching control of the test water discharge valve 42 to the inspection position is instructed, and the operation state is reflected and displayed on the inspection screen.

  Subsequently, in step S14, the switching control to the inspection position of the inspection valve 40 is instructed, and the operation state is reflected and displayed on the inspection screen.

  In step S15, a pump operation signal is transmitted to the pump control panel 6 to start pump operation. In addition, since the pump operation is continued for the second and subsequent inspections, the process of step S15 may not be performed.

  Subsequently, in step S16, the electronic message from the terminal unit 2 is effectively received and analyzed, and when it is detected that the limit switch 25 provided in the test water control valve 11 is fully closed, the process proceeds to step S17 and is shown on the inspection screen 110B in FIG. As described above, the state of the test water control valve 11 is switched from “fully open” to “fully closed”.

  Subsequently, in step S18, the pilot valve 30 opening control is instructed, and thereby the automatic valve 10 is controlled to open and the test water is discharged to flow the pressurized water to the drain side, and the operation state is reflected and displayed on the system diagram of the inspection screen. .

  Subsequently, in step S19, the electronic message from the terminal unit 2 is effectively received and analyzed, and when it is detected that the pressure switch 48 is turned on, the process proceeds to step S20 to switch to the inspection screen 110C in FIG.

  Subsequently, in step S21, the electronic message from the terminal unit 2 is effectively received and analyzed, and when the water discharge pressure detected by the pressure sensor 44 is detected, the process proceeds to step S22. If the detected water discharge pressure is within the set pressure range, the range is normal. If it is outside, it is judged as abnormal, and the inspection date and time, the water discharge pressure and the inspection result are stored as an inspection history.

  In step S23, the automatic valve device is restored to the steady monitoring state by performing a closing control instruction for the pilot valve 30, a steady position switching instruction for the check valve 40, and a steady position switching instruction for the test water discharge valve 42 as restoration processing.

  On the other hand, if it is not detected in step S16 that the test water control valve has been fully closed after a predetermined time has elapsed, a time-out is detected in step S24, and in step S25, the inspection date and time and the abnormality of the test water control valve are detected. The inspection history is stored, and in step S26, a normal position switching instruction for the inspection valve 40 and a normal position switching instruction for the test water discharge valve 42 are given as restoration processing, and the automatic inspection is terminated.

  FIG. 11 is a flowchart showing an outline of the test water control valve inspection process in step S7 of FIG. 9, and the process is performed by the test water control valve inspection instruction unit 97 provided in the center device 5 of FIG.

  In FIG. 11, the test water control valve check process in steps S31 to S35 is the same as the process in steps S11 to S15 in the automatic valve device check process shown in FIG. An inspection position switching instruction for the inspection valve 40 and a pump activation instruction are performed.

  In step S36, the message from the terminal unit 2 is effectively received and analyzed, and when it is detected that the limit switch 25 provided in the test water control valve 11 is fully closed, the process proceeds to step S37, and the inspection screen 110B in FIG. As shown, the state of the test water control valve 11 is switched from “fully open” to “fully closed”. In step S38, the test water control valve 11 is determined to be normal, and the inspection date / time and the inspection result are stored as an inspection history.

  Subsequently, in step S39, as a restoration process, a steady position switching instruction for the check valve 40 and a steady position switching instruction for the test water discharge valve 42 are performed to control the opening of the test water control valve 11. When the full opening is detected, the steady monitoring state is set. Confirm recovery and end automatic inspection.

  On the other hand, if it is not detected in step S36 that the test water control valve has been fully closed after a predetermined time has elapsed, a time-out is detected in step S40, and in step S38 the test water control time and the inspection result are obtained. The abnormality of the valve is stored as an inspection history, and in step S39, a normal position switching instruction for the inspection valve 40 and a normal position switching instruction for the test water discharge valve 42 are given as restoration processing, and the automatic inspection is terminated.

  Note that the inspection screen in the above embodiment is an example, and any appropriate inspection screen can be used as long as the system diagram, operation unit, inspection message, and the like of the automatic valve device that performs automatic inspection are displayed in a coordinated manner.

  In addition, the flowchart in the above embodiment describes a schematic example of processing, and the order of processing is not limited thereto. In addition, a delay time can be provided between the processes or between processes, and other determinations can be inserted.

  Further, the drainage of the pressurized water from the secondary side of the automatic valve during the test and the drainage of the first cylinder chamber 61a of the hydraulic actuator 34 when closing the test water control valve 11 are mixed and then the port of the test water discharge valve 42. Although it drains by inputting into c, it is not restricted to this, It is good also as a structure which drains each independently using a some test water discharge valve, without mixing. The test water discharge valve 42 is not limited to the three-way switching valve, and may be configured by a plurality of valves that can be switched so as to drain the cylinder chamber that opens or closes the hydraulic actuator 34.

Further, in order to switch the pressurized water to be introduced into the hydraulic actuator 34, it is configured with two three-way switching valves, a check valve 40 and a test water discharge valve 42. However, the invention is not limited to this. For example, it is configured with one four-way switching valve. May be. That is, there are four ports: a port a connected to the secondary side of the orifice 38, a port b connected to the open cylinder chamber 61a of the hydraulic actuator 34, a port c connected to the second cylinder 61b, and a port d connected to the drain side. Provide a port.

In a normal state in which the test water control valve 11 is opened, the pressurized water is supplied to the first cylinder chamber 61a by connecting the port a and the port b, and the port c and the port d, and the second cylinder chamber. Drain the water of 61b. Testing for closing the test system water valve 11 communicates the port a and the port c, by communicating the port b and port d, introducing a pressurized water into the second cylinder chamber 61b, the first cylinder chamber 61a Let the water drain. In this case, the open / close control of the test water control valve 11 may be configured by a single valve, and a switching valve for connecting the pressurized water on the secondary side of the automatic valve during the test to the drain side may be provided separately.

  The automatic valve device remote inspection process of FIG. 10 may automatically set the periodic inspection date and time and perform the inspection automatically without depending on the inspection start operation by the inspector, or limited to the periodic inspection date and time. Instead, the inspector may operate the operation unit 102 to start the inspection.

Moreover, the test system water valve remote check processing of FIG. 11 also sets the periodic inspection date automatically, without depending on inspection start operation of the inspector, the test system water valve inspection instruction unit test system The inspection of only the water valve may be performed automatically, or the inspection may be started by operating the operation unit 102 without being limited to the periodic inspection date and time.

The test water control valve 11 is not limited to the open / close structure of the above-described embodiment, and the open / close control by the same structure as the automatic valve 10 and the pilot valve 30 or the test water control valve may be constituted by an electric valve. If it is possible to perform it for opening operation in different periods, the operation check of the test gate valve 11 without water discharge a fire extinguishing water also water discharge inspection.

The present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

1: Automatic valve device 2: Terminal unit 4: Water spray head 10: Automatic valve 11: Test water control valve 12: Automatic valve pressure regulating valve 30: Pilot valve (remote start valve)
34: Water pressure actuator 40: Check valve 42: Test water discharge valve 84: Terminal processing unit 86: Terminal transmission unit 88: Water spray control unit 90: Test water discharge control unit 94: Center processing unit 96: Automatic valve device inspection instruction unit 97: Test control valve inspection instruction unit 98: Inspection management units 110A to 110C: Inspection screen 116: Piping system diagram 118: Control device display unit 120: Inspection start button 122: Inspection stop button 124: Inspection history button

Claims (4)

An automatic valve that supplies pressurized water to the water spray nozzle and sprinkles water;
A pilot valve for controlling the opening of the automatic valve during water spraying or test water discharge;
A test water control valve that is disposed on the secondary side of the automatic valve, opens at a steady state, and closes at a test water discharge;
In an automatic valve device inspection system for remotely inspecting an automatic valve device equipped with
An automatic valve device inspection instruction unit that operates and inspects the automatic valve device by a remote control instruction;
A test water control valve inspection instructing unit that opens and closes the test water control valve according to a remote control instruction;
Equipped with a,
The automatic valve device inspection instructing unit and the test water control valve inspection instructing unit, when starting the inspection, on the screen of the display unit, the system diagram of the automatic valve device and the operations necessary for the inspection of the automatic valve device An automatic valve device inspection system which displays an inspection screen including a part and reflects an operation state of the automatic valve device on the inspection screen when inspection is started by operation of the operation part .
The automatic valve device inspection system according to claim 1, further comprising:
An inspection management unit is provided for setting a first inspection cycle of the automatic valve device inspection instruction unit and setting a second inspection cycle shorter than the first inspection cycle as an inspection cycle of the test water control valve inspection instruction unit. An automatic valve device inspection system characterized by that.
In automatic valve device inspection system according to claim 2, wherein the inspection management unit, automatic valve, characterized in that to record the inspection history of the automatic valve device checking instruction unit and said test system water valve checking instruction unit Equipment inspection system.
The automatic valve device inspection system according to claim 1 , wherein the automatic valve device inspection instruction unit and the test water control valve inspection instruction unit detect the full opening or the full closing of the test water control valve, An automatic valve device inspection system that displays a fully open state or a fully closed state in the vicinity of a test water control valve in a system diagram.

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