CN210410234U - Flow direction non-parallel type stain-resistant membrane element and filter element with same - Google Patents
Flow direction non-parallel type stain-resistant membrane element and filter element with same Download PDFInfo
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- CN210410234U CN210410234U CN201920322235.0U CN201920322235U CN210410234U CN 210410234 U CN210410234 U CN 210410234U CN 201920322235 U CN201920322235 U CN 201920322235U CN 210410234 U CN210410234 U CN 210410234U
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Abstract
The utility model provides a flow direction non-parallel type stain-resistant membrane element and have filter core of this membrane element. The membrane element is provided with a plurality of membrane units and a central tube group, and the central tube group is communicated with the membrane units. The second membrane unit of the membrane element has a flow gathering effect on the concentrated water generated by the first membrane unit so as to improve the flow velocity of the concentrated water in the second membrane unit. The utility model discloses prolong the flow path of rivers under the condition of same effective area. Meanwhile, the water flow of the stain-resistant membrane element can be turned back to carry out twice filtration, so that the water yield is improved. Furthermore, the utility model discloses a raw water is parallel with the wide A of second in the flow direction of first membrane unit, and dense water A is perpendicular with the wide B of second in the flow direction of second membrane unit, and such benefit can reduce the raw water and prolong dense water A simultaneously in the flow path of second membrane unit at the pressure loss of first membrane unit. The filter element with the membrane element can improve the flow velocity of concentrated water, reduce the pressure drop loss of inflow water flow and reduce scaling risk, thereby prolonging the service life.
Description
Technical Field
The utility model relates to a filtration equipment field, in particular to resistant dirty formula film element of non-parallel type of flow direction and have filter core of this film element.
Background
In the prior art, the filter element that domestic and foreign purifier was used commonly filters water for formula of book filter element. The front interlayer of the membrane element forms a raw water channel, and the back interlayer forms a pure water channel. The water flow of the roll-type filter element with the conventional design is slow on the surface of the filter membrane, and when the water obtaining rate of the membrane element is higher or the quality of purified water is poorer, the concentration polarization phenomenon on the surface of the filter membrane is serious, and the phenomena of scaling and product water quality reduction are generated.
Therefore, it is necessary to provide a non-parallel flow type fouling resistant membrane element and a filter element having the same to solve the deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to avoid the disadvantages of the prior art and provide a flow direction non-parallel type stain resistant membrane element. The flow direction non-parallel type pollution-resistant membrane element has the advantage of pollution resistance.
The above object of the present invention is achieved by the following technical measures:
a flow direction non-parallel type fouling resistant membrane element is provided with a plurality of membrane units and a center tube group, wherein the center tube group is communicated with the membrane units.
A membrane unit in which raw water is first treated is defined as a first membrane unit, and a membrane unit in which raw water is second treated is defined as a second membrane unit.
The central tube group is provided with a first central tube and a second central tube, the first central tube is respectively communicated with the first membrane unit and the second membrane unit, and the second central tube is communicated with the second membrane unit.
Raw water enters the first membrane unit and is treated to obtain pure water A and concentrated water A, the concentrated water A enters the second membrane unit, the concentrated water A is treated by the second membrane unit to obtain pure water B and concentrated water B, the flow direction of the raw water in the first membrane unit is not parallel to the flow direction of the concentrated water A in the second membrane unit, the concentrated water B is discharged through the second central pipe and flows to the non-parallel pollution-resistant membrane element, and the pure water A and the pure water B are discharged through the first central pipe and flow to the non-parallel pollution-resistant membrane element.
Preferably, the first membrane unit is provided with a water generating surface and a water inlet surface.
Preferably, the first membrane unit is a first membrane unit folded into a double-layer rectangular structure, the water inlet surfaces of the first membrane unit are opposite, the opposite folding edges are rectangular short edges, the opposite folding edges are defined as a first wide a, the short edges opposite to the opposite folding edges are defined as a second wide a, two long edges adjacent to the opposite folding edges are defined as a first long a and a second long a, the second wide a is subjected to sealing treatment through a sealing material along the water inlet surfaces, the second long a is a raw water inlet, and the first long a is a first concentrated water outlet.
Preferably, the second membrane unit is provided with a water generating surface and a water inlet surface.
Preferably, the second membrane unit is a second membrane unit folded into a double-layer rectangular structure, the water inlet surfaces are opposite, the opposite folding edges are rectangular short edges, the opposite folding edges are defined as first wide B, the short edges opposite to the opposite folding edges are defined as second wide B, two long edges adjacent to the opposite folding edges are defined as first long B and second long B, the second central tube is connected to the water inlet surfaces in a seamless mode and is parallel to the first wide B, the first long B and the second long B are subjected to sealing treatment through a sealing material along the water inlet surfaces, and the second wide B is a concentrated water inlet.
Raw water enters the first membrane unit from the raw water inlet and is treated to obtain pure water A and concentrated water A, the concentrated water A flows out of the first membrane unit from the concentrated water outlet, then the concentrated water A enters the second membrane unit from the concentrated water inlet, the concentrated water A is treated by the second membrane unit to obtain pure water B and concentrated water B, the flow direction of the concentrated water A in the second membrane unit is mutually vertical to the flow direction of the raw water in the first membrane unit, the concentrated water B is discharged from the second central tube and flows to the non-parallel pollution-resistant membrane element, and the pure water A and the pure water B are discharged from the first central tube and flow to the non-parallel pollution-resistant membrane element.
The flow direction of the raw water in the first membrane unit is parallel to the second width A, and the flow direction of the concentrated water A in the second membrane unit is vertical to the second width B.
Preferably, the membrane unit is a membrane unit in which a center tube group is wound at the center.
Preferably, the first central pipe is not communicated with the water inlet surface.
Preferably, the second base pipe is not in communication with the water producing surface.
When the first film element and the second film element are unfolded, the first length A and the first length B are located on the same side, the second length A and the second length B are located on the same side, the first width A and the first width B are located on the same side, and the second width A and the second width B are located on the same side.
Preferably, the water production surface of the first membrane unit is provided with sealing devices along the first length a, the second length a and the second width a, and the sealing devices are respectively connected with corresponding positions of the adjacent first membrane unit or the adjacent second membrane unit in a sealing manner to form a pure water cavity structure taking the first width a as an outlet.
Preferably, the water production surface of the second membrane unit is provided with sealing devices along the first length B, the second length B and the second width B, and the sealing devices are respectively connected with the corresponding positions of the adjacent first membrane unit or the adjacent second membrane unit in a sealing manner to form a pure water cavity structure taking the first width B as an outlet.
The first central pipe and the second central pipe are both single-end closed water inlet pipes, and the closed ends are located on the side of the first length A.
Preferably, the side surfaces of the first central pipe and the second central pipe are provided with through holes for passing the running water.
Preferably, the ratio of the number of the first film units to the number of the second film units is 1: 9-9: 1 and the number of membrane units is less than or equal to 10.
Preferably, the number of the second central tubes corresponds to the number of the second membrane units.
Preferably, the first membrane unit is a reverse osmosis membrane unit, a nanofiltration membrane unit, or an ultrafiltration membrane unit.
Preferably, the second membrane unit is a reverse osmosis membrane unit, a nanofiltration membrane unit, or an ultrafiltration membrane unit.
When the membrane units are unfolded, a plurality of membrane units are arranged in a stacked manner.
The first membrane unit and the second membrane unit are in extended arrangement when the membrane units are unfolded.
When the membrane unit is unfolded, the maximum distance between the membrane unit and the adjacent membrane unit is defined as D1The total circumference of the central tube group is defined as D2And D is1≥D2(ii) a Or
Defining at least one of the first membrane units as a first membrane group, and defining the rest of the first membrane units and the rest of the second membrane units as second membrane groups, wherein the first membrane groups and the second membrane groups are arranged in a stretching way; defining the maximum distance between the first membrane group and the second membrane group as D when the membrane unit is unfolded3The total circumference of the central tube group is defined as D2And D is3≥D2。
The utility model discloses a resistant dirty formula film element of non-parallel of flow direction still is provided with and produces water lattice network piece, water inlet lattice network piece and dense water lattice network piece, produces water lattice network piece set up in pure water cavity structure and not with the face contact of intaking, water inlet lattice network piece set up in the face of intaking of first membrane unit and not with produce the face contact, water inlet lattice network piece set up in the face of intaking of second membrane unit and not with produce the face contact.
Preferably, the water inlet grid mesh is a 3D mesh-structured water inlet grid mesh.
Preferably, the concentrated water grid mesh sheet is a 3D mesh-structured concentrated water grid mesh sheet.
Preferably, the water producing grid mesh is a 3D diversion and distribution dense grid mesh.
Preferably, the thickness of the water inlet grid and the thick water grid sheet is 13-34 mil.
Preferably, the thickness of the water producing mesh sheet is 8-15 mil.
The sealing material is polyurethane or epoxy glue.
The sealing device is made of polyurethane or epoxy glue.
Preferably, the thickness of the water inlet grid and the thick water grid sheet is 17-24 mil.
Preferably, the thickness of the water producing mesh sheet is 9-12 mil.
Preferably, the first length a and the first length B are both 26 to 125cm in length.
Preferably, the first width a and the first width B are both 15 to 50cm in length.
The utility model discloses a flow direction non-parallel type resistant dirty formula film element is provided with many membrane units and central nest of tubes, central nest of tubes and membrane unit intercommunication. A membrane unit in which raw water is first treated is defined as a first membrane unit, and a membrane unit in which raw water is second treated is defined as a second membrane unit. The central tube group is provided with a first central tube and a second central tube, the first central tube is respectively communicated with the first membrane unit and the second membrane unit, and the second central tube is communicated with the second membrane unit. Raw water enters the first membrane unit and is treated to obtain pure water A and concentrated water A, the concentrated water A enters the second membrane unit, the concentrated water A is treated by the second membrane unit to obtain pure water B and concentrated water B, the flow direction of the raw water in the first membrane unit is not parallel to the flow direction of the concentrated water A in the second membrane unit, the concentrated water B is discharged through the second central pipe and flows to the non-parallel pollution-resistant membrane element, and the pure water A and the pure water B are discharged through the first central pipe and flow to the non-parallel pollution-resistant membrane element. The utility model discloses thereby the second membrane unit that flow direction non-parallel type is resistant dirty formula film element plays the concentrated water that produces first membrane unit and gathers the velocity of flow that flows the effect and improve concentrated water at second membrane unit, reduces the pressure drop loss of rivers and reduces the scale deposit risk, consequently can improve life. The utility model discloses prolong the flow path of rivers under the condition of same effective area. Simultaneously the utility model discloses the rivers of the resistant dirty formula film component of flow direction non-parallel can make rivers turn back and carry out twice filtration, make the water yield improve. Furthermore, the utility model discloses a raw water is parallel with the wide A of second in the flow direction of first membrane unit, and dense water A is perpendicular with the wide B of second in the flow direction of second membrane unit, and such benefit can reduce the raw water and prolong dense water A simultaneously in the flow path of second membrane unit at the pressure loss of first membrane unit.
Another object of the present invention is to provide a filter element with the membrane element, which avoids the disadvantages of the prior art. The filter element has the advantage of pollution resistance.
The above object of the present invention is achieved by the following technical measures:
a filter element is provided, which is provided with the flow direction non-parallel type pollution-resistant type membrane element.
The utility model discloses a filter core has the resistant dirty formula film element of non-parallel formula of flow direction, can improve the velocity of flow of dense water, reduces the pressure drop loss of influent stream and reduces the scale deposit risk to improve life.
Drawings
The present invention will be further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.
Fig. 1 is a schematic structural view of a flow direction non-parallel type fouling resistant membrane element.
Fig. 2 is a schematic view of a folding process of the first membrane unit.
Fig. 3 is a schematic view of the folding process of the second membrane unit.
Fig. 4 is a schematic view of a lamination process of a membrane unit and an adjacent membrane unit.
FIG. 5 is a schematic view of the water flow direction of the water inlet surface of the first membrane unit.
FIG. 6 is a schematic view of the water flow direction of the water inlet surface of the second membrane unit.
Fig. 7 is a schematic view of the direction of water flow at the water production surface.
Fig. 8 is a schematic view showing the structure of a flow direction non-parallel type fouling resistant membrane element according to example 1.
Fig. 9 is a schematic view of the structure of fig. 8 when rolled.
FIG. 10 is a schematic view showing the structure of a flow direction non-parallel type fouling resistant membrane element according to example 4.
FIG. 11 is a schematic view showing the structure of a flow direction non-parallel type fouling resistant membrane element according to example 5.
In fig. 1 to 11, the following components are included:
a membrane unit 1,
A first membrane unit 11, a first width A111, a second width A112, a first length A113, a second length A114, a raw water inlet 115, a concentrated water outlet 116,
A second membrane unit 12, a first width B121, a second width B122, a first length B123, a second length B124, a concentrated water inlet 125,
The water production device comprises a central tube group 2, a first central tube 21, a second central tube 22, a water production surface 3, a water inlet surface 4, a pure water cavity structure 5, a water production grid mesh 6, a water inlet grid mesh 7, a concentrated water grid mesh 8, a first membrane group 9 and a second membrane group 10.
Detailed Description
The technical solution of the present invention will be further explained by the following examples.
Example 1.
A flow direction non-parallel type fouling resistant membrane element, as shown in FIGS. 1 to 9, is provided with a plurality of membrane units 1 and a center tube group 2, the center tube group 2 communicating with the membrane units 1.
The membrane unit 1 which first treats the raw water is defined as a first membrane unit 11, and the membrane unit 1 which second treats the raw water is defined as a second membrane unit 12.
The center tube group 2 is provided with a first center tube 21 and a second center tube 22, the first center tube 21 communicating with the first membrane unit 11 and the second membrane unit 12, respectively, and the second center tube 22 communicating with the second membrane unit 12.
Raw water enters the first membrane unit 11 and is treated to obtain pure water A and concentrated water A, the concentrated water A enters the second membrane unit 12, the concentrated water A is treated by the second membrane unit 12 to obtain pure water B and concentrated water B, the flow direction of the raw water in the first membrane unit 11 is not parallel to the flow direction of the concentrated water A in the second membrane unit 12, the concentrated water B is discharged through the second central pipe 22 and flows to the non-parallel pollution-resistant type membrane elements, and the pure water A and the pure water B are discharged through the first central pipe 21 and flow to the non-parallel pollution-resistant type membrane elements.
The first membrane unit 11 is provided with a water production surface 3 and a water intake surface 4.
The first membrane unit 11 is a first membrane unit 11 folded into a double-layer rectangular structure, the water inlet surfaces 4 are opposite, the opposite folding edges are rectangular short edges, the opposite folding edges are defined as a first width A111, the short edges opposite to the opposite folding edges are defined as a second width A112, two long edges adjacent to the opposite folding edges are defined as a first length A113 and a second length A114, the second width A112 is subjected to sealing treatment along the water inlet surfaces 4 through sealing materials, the second length A114 is a raw water inlet 115, and the first length A113 is a concentrated water outlet 116.
The second membrane unit 12 is provided with a water production surface 3 and a water intake surface 4.
The second membrane unit 12 is a second membrane unit 12 folded into a double-layer rectangular structure, the water inlet surfaces 4 are opposite, the opposite folding edges are rectangular short edges, the opposite folding edges are defined as first wide edges B121, the short edges opposite to the opposite folding edges are defined as second wide edges B122, two long edges adjacent to the opposite folding edges are defined as first long edges B123 and second long edges B124, the second central tube 22 is connected to the water inlet surfaces 4 in a seamless mode and is parallel to the first wide edges B121, the first long edges B123 and the second long edges B124 are subjected to sealing treatment through sealing materials along the water inlet surfaces 4, and the second wide edges B122 are concentrated water inlets 125.
Raw water enters the first membrane unit 11 from the raw water inlet 115 and is treated to obtain pure water A and concentrated water A, the concentrated water A flows out of the first membrane unit 11 from the concentrated water outlet 116, then the concentrated water A enters the second membrane unit 12 from the concentrated water inlet 125, the concentrated water A is treated by the second membrane unit 12 to obtain pure water B and concentrated water B, the flow direction of the concentrated water A in the second membrane unit 12 is perpendicular to that of the raw water in the first membrane unit 11, the concentrated water B is discharged from the second central tube 22 and flows to the non-parallel pollution-resistant membrane elements, and the pure water A and the pure water B are discharged through the first central tube 21 and flow to the non-parallel pollution-resistant membrane elements.
The flow direction of the raw water in the first membrane unit 11 is parallel to the second width a112, and the flow direction of the concentrated water a in the second membrane unit 12 is perpendicular to the second width B122.
The flow direction of the raw water and the concentrated water a has the advantage of reducing the pressure loss of the raw water in the first membrane unit 11 while extending the flow path of the concentrated water a in the second membrane unit 12.
The membrane unit 1 is a membrane unit 1 which is rolled up with the central tube group 2 as the center. The first central tube 21 is not in communication with the water inlet face 4. Second base pipe 22 is not in communication with water production surface 3.
When the first film unit 11 and the second film unit 12 are unfolded, the first length a113 and the first length B123 are located on the same side, the second length a114 and the second length B124 are located on the same side, the first width a111 and the first width B121 are located on the same side, and the second width a112 and the second width B122 are located on the same side.
The water producing surface 3 of the first membrane unit 11 is provided with sealing devices along the first length A113, the second length A114 and the second width A112, and the sealing devices are respectively connected with the corresponding positions of the adjacent first membrane unit 11 or the second membrane unit 12 in a sealing way to form a pure water cavity structure 5 taking the first width A111 as an outlet.
The water producing surface 3 of the second membrane unit 12 is provided with sealing devices along the first length B123, the second length B124 and the second width B122, and the sealing devices are respectively connected with the corresponding positions of the adjacent first membrane unit 11 or second membrane unit 12 in a sealing way to form a pure water cavity structure 5 taking the first width B121 as an outlet.
Raw water enters the first membrane unit 11 from the raw water inlet 115 and is treated to obtain pure water A and concentrated water A, the concentrated water A flows out of the first membrane unit 11 from the concentrated water outlet 116, then the concentrated water A enters the second membrane unit 12 from the concentrated water inlet 125, the concentrated water A is treated by the second membrane unit 12 to obtain pure water B and concentrated water B, the flow direction of the concentrated water A in the second membrane unit 12 is perpendicular to that of the raw water in the first membrane unit 11, the concentrated water B is discharged from the second central tube 22 and flows to the non-parallel type pollution-resistant membrane elements, the pure water A and the pure water B flow from the pure water cavity structure 5 to the first width B121 and the first width A111, and finally the pure water A and the pure water B are discharged through the first central tube 21 and flow to the non-parallel type pollution-resistant membrane elements.
The first central tube 21 and the second central tube 22 are both single-end closed inlet tubes and the closed ends are located on the side of the first length a 113. The side surfaces of the first center pipe 21 and the second center pipe 22 are both provided with through holes for passing the running water.
The utility model discloses a first membrane unit 11 is reverse osmosis membrane unit 1, receives filter membrane unit 1 or milipore filter unit 1, and the concrete embodiment mode is decided according to actual conditions. The first membrane unit 11 of the present embodiment is a reverse osmosis membrane unit 1.
The utility model discloses a second membrane unit 12 is reverse osmosis membrane unit 1, receives filter membrane unit 1 or milipore filter unit 1, and the concrete embodiment mode is decided according to actual conditions. The second membrane unit 12 of the present embodiment is a reverse osmosis membrane unit 1.
In the film unit 1 of the present embodiment, a plurality of film units 1 are arranged in a stacked manner when they are developed.
The utility model discloses a flow direction non-parallel formula resistant dirty formula film element still is provided with and produces water lattice net piece 6, water inlet lattice net piece 7 and dense water lattice net piece 8, and water lattice net piece 6 sets up in pure water cavity structure 5 and not with the contact of inlet surface 4, and water inlet lattice net piece 7 sets up in the inlet surface 4 of first membrane element 11 and not with producing the contact of water surface 3, and water inlet lattice net piece 7 sets up in the inlet surface 4 of second membrane element 12 and not with producing the contact of water surface 3, as shown in FIG. 8. The structure of the water grid mesh sheet 6 in figure 9 is not shown.
The water inlet grid mesh 7 is a 3D net-structured water inlet grid mesh 7. The dense water grid mesh 8 is a dense water grid mesh 8 with a 3D net structure. The water producing grid mesh 6 is a 3D diversion and distribution dense water grid mesh 8.
The utility model discloses a graticule mesh and dense water check net piece 8's thickness of intaking is 13mil ~ 34mil, preferably 17mil ~ 24mil, and specific implementation thickness is decided according to actual conditions. The thickness of the water inlet grid and the thick water grid sheet 8 of the present embodiment is 18 mil.
The utility model discloses a produce water lattice net piece 6's thickness is 8mil ~ 15mil, preferably 9mil ~ 12mil, and specific implementation thickness is decided according to actual conditions. The thickness of the water inlet grid and the thick water grid sheet 8 of the present embodiment is 18 mil.
The length of the first length A113 and the first length B123 of the utility model is 26-125 cm, such as 30cm, 60cm, 80cm, 100cm, 120cm and the like, and the specific length is determined according to the actual condition. The utility model discloses a first wide A111 and first wide B121's length all is 15 ~ 50cm, like 16cm, 18cm, 20cm, 40cm, 49cm etc. and specific length is decided according to actual conditions. The lengths of the first length a113 and the first length B123 of the present embodiment are 50cm, and the lengths of the first width a111 and the first width B121 are both 30 cm.
The utility model discloses a sealing material can be polyurethane, also can be epoxy type glue, and specific embodiment mode is decided according to actual conditions. The sealing device can be polyurethane or epoxy glue, and the specific embodiment mode is determined according to the actual situation. The sealing material of this example is polyurethane and the sealing device is polyurethane.
The water producing surface 3 and the water inlet surface 4 of the present invention are common knowledge, and those skilled in the art should know the function and difference of the water producing surface 3 and the water inlet surface 4, and will not be described herein again.
The utility model discloses flow to the dirty formula film element of non-parallel's second membrane unit 12 and play the concentrated water that produces first membrane unit 11 and gather a stream effect to improve the velocity of flow of concentrated water at second membrane unit 12, reduce the pressure drop loss of influent stream and reduce the scale deposit risk, consequently can improve life. Simultaneously the utility model discloses the rivers of the resistant dirty formula film component of flow direction non-parallel can make rivers turn back and carry out twice filtration, make the water yield improve. Furthermore the utility model discloses a rivers all flow with the long limit direction of rectangle structure in the inside flow direction of membrane unit 1 to can make the velocity of flow maximize of rivers, reduce the risk of scale deposit better.
Example 2.
A flow-through non-parallel fouling resistant membrane element having the same other features as in example 1, except that: the utility model discloses a number of pieces of first membrane unit 11 and number of pieces of second membrane unit 12 are than being 1: 9-9: 1 and the number of the film units 1 is less than or equal to 10. The number of the second central tubes 22 corresponds to the number of the second membrane units 12.
The number of the first membrane units 11 in this embodiment is specifically 2. The number of the second membrane units 12 is 1 and the number of the second center tubes 22 is 1. The number ratio of the first membrane unit 11 to the second membrane unit 12 in this embodiment is 2: 1.
it should be noted that, the first membrane unit 11 of the present invention can be set to 2, also can be set to 3, 4, 5, 6, 7, 8, 9, etc., as long as it is greater than 2 arbitrary numbers and less than 9, simultaneously keep the total number of membrane units 1 less than or equal to 10, and the number of the first membrane unit 11 is not less than the second membrane unit 12, which can be the first membrane unit 11 of the flow direction non-parallel type fouling resistant membrane element of the present invention.
Compared with the embodiment 1, the water making efficiency of the embodiment is higher, the flow speed of the concentrated water of the second membrane unit 12 is faster, and the scaling risk is lower.
Example 3.
A flow-through non-parallel fouling resistant membrane element having the same other features as in example 2, except that: the first membrane unit 11 of the present embodiment is specifically 3 sheets. The second membrane unit 12 of the present embodiment is provided with 2 sheets. The second central tube 22 is 2 in number.
The utility model discloses a number of pieces of first membrane unit 11 and number of pieces of second membrane unit 12 are than being 1: 1-9: 1 and the number of the film units 1 is less than or equal to 10. The number of the first membrane unit 11 and the second membrane unit 12 in the present embodiment is 3: 2.
it should be noted that, the second membrane unit 12 of the present invention can be set to 2, also can be set to 3, 5, 7, 9, etc., as long as it is greater than 2 arbitrary numbers and less than 9, while keeping the number of membrane units 1 less than or equal to 10, and the number of first membrane units 11 is not less than the second membrane unit 12, which can be the second membrane unit 12 of the flow direction non-parallel type fouling resistant membrane element of the present invention. Meanwhile, the number of the second central tubes 22 may be 2, and may also be set to 3, 5, 7, 9, etc., as long as any number greater than 2 and less than 9 are provided, and correspond to the second membrane units 12 one to one.
Compared with the embodiment 2, the water production efficiency of the embodiment is higher.
Example 4.
A flow non-parallel fouling resistant membrane element, otherwise characterized as in example 3, as shown in figure 10, except that: when the membrane unit 1 is unfolded, the first membrane unit 11 and the second membrane unit 12 are in an extended arrangement.
The maximum distance of a membrane unit 1 from an adjacent membrane unit 1 when the membrane unit 1 is unfolded is defined as D1The total circumference of the center tube group 2 is defined as D2And D is1≥D2。
Compared with embodiment 3, the maximum distance between the membrane unit 1 and the adjacent membrane unit 1 is greater than or equal to the total circumference of the central tube group 2, which can facilitate rolling of a plurality of membrane units 1 around the central tube group 2.
Example 5.
A flow non-parallel fouling resistant membrane element having the same other features as in example 4, except that: at least one of the first membrane units 11 is defined as a first membrane group 9, the rest of the first membrane units 11 and the second membrane units 12 are defined as a second membrane group 10, and the first membrane group 9 and the second membrane group 10 are arranged in an extending manner. The maximum distance between the first membrane group 9 and the second membrane group 10 when the membrane unit 1 is in the unfolded state is defined as D3The total circumference of the center tube group 2 is defined as D2And D is3≥D2。
Any one of the 3 first membrane units 11 is defined as a first membrane group 9, the other two first membrane units 11 and 2 second membrane units 12 are defined as second membrane groups 10, and when all the membrane units 1 are in the unfolded state, the maximum distance between the first membrane group 9 and the second membrane group 10 is defined as D3And D is3≥D2。
Compared with the embodiment 1, the maximum distance between the first membrane group 9 and the second membrane group 10 of the embodiment is greater than or equal to the total circumference of the central tube group 2, which can facilitate the rolling of the plurality of membrane units 1 around the central tube group 2.
Example 6.
A filter cartridge having the flow direction non-parallel fouling resistant membrane element of example 1.
A filter element can improve the flow velocity of concentrated water, reduce the pressure drop loss of inflow water and reduce the scaling risk, thereby prolonging the service life.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a dirty formula membrane element of flow direction non-parallel, its characterized in that: the device is provided with a plurality of membrane units and a central tube group, wherein the central tube group is communicated with the membrane units;
defining a membrane unit for performing primary treatment on raw water as a first membrane unit, and defining a membrane unit for performing secondary treatment on the raw water as a second membrane unit;
the central tube group is provided with a first central tube and a second central tube, the first central tube is respectively communicated with the first membrane unit and the second membrane unit, and the second central tube is communicated with the second membrane unit;
raw water enters the first membrane unit and is treated to obtain pure water A and concentrated water A, the concentrated water A enters the second membrane unit, the concentrated water A is treated by the second membrane unit to obtain pure water B and concentrated water B, the flow direction of the raw water in the first membrane unit is not parallel to the flow direction of the concentrated water A in the second membrane unit, the concentrated water B is discharged through the second central pipe and flows to the non-parallel pollution-resistant membrane element, and the pure water A and the pure water B are discharged through the first central pipe and flow to the non-parallel pollution-resistant membrane element.
2. The flow direction non-parallel fouling resistant membrane element of claim 1 wherein: the first membrane unit is provided with a water production surface and a water inlet surface;
the first membrane unit is folded into a double-layer rectangular structure, the water inlet surfaces of the first membrane unit are opposite, the opposite folding edges are rectangular short edges, the opposite folding edges are defined as a first width A, the short edges opposite to the opposite folding edges are defined as a second width A, two long edges adjacent to the opposite folding edges are defined as a first length A and a second length A, the second width A is subjected to sealing treatment along the water inlet surfaces through sealing materials, the second length A is a raw water inlet, and the first length A is a concentrated water outlet;
the second membrane unit is provided with a water production surface and a water inlet surface;
the second membrane unit is folded into a double-layer rectangular structure, the water inlet surfaces of the second membrane unit are opposite, the opposite folding edges are rectangular short edges, the opposite folding edges are defined as a first width B, the short edges opposite to the opposite folding edges are defined as a second width B, two long edges adjacent to the opposite folding edges are defined as a first length B and a second length B, the second central tube is connected to the water inlet surfaces in a seamless mode and is parallel to the first width B, the first length B and the second length B are subjected to sealing treatment through sealing materials along the water inlet surfaces, and the second width B is a concentrated water inlet;
raw water enters a first membrane unit from a raw water inlet and is treated to obtain pure water A and concentrated water A, the concentrated water A flows out of the first membrane unit from a concentrated water outlet, then the concentrated water A enters a second membrane unit from a concentrated water inlet, the concentrated water A is treated by the second membrane unit to obtain pure water B and concentrated water B, the flow direction of the concentrated water A in the second membrane unit is mutually vertical to the flow direction of the raw water in the first membrane unit, the concentrated water B is discharged from a second central tube and flows to a non-parallel pollution-resistant membrane element, and the pure water A and the pure water B are discharged by the first central tube and flow to the non-parallel pollution-resistant membrane element;
the flow direction of the raw water in the first membrane unit is parallel to the second width A, and the flow direction of the concentrated water A in the second membrane unit is vertical to the second width B.
3. The flow direction non-parallel fouling resistant membrane element of claim 2 wherein: the membrane unit is a membrane unit with a central pipe group as a central roll;
the first central pipe is not communicated with the water inlet surface;
the second central pipe is not communicated with the water producing surface;
when the first film element and the second film element are unfolded, the first length A and the first length B are located on the same side, the second length A and the second length B are located on the same side, the first width A and the first width B are located on the same side, and the second width A and the second width B are located on the same side.
4. The flow direction non-parallel fouling resistant membrane element of claim 3 wherein: the water production surface of the first membrane unit is provided with sealing devices along the first length A, the second length A and the second width A, and the sealing devices are respectively in sealing connection with corresponding positions of the adjacent first membrane unit or the second membrane unit to form a pure water cavity structure taking the first width A as an outlet;
and the water production surface of the second membrane unit is provided with sealing devices along the first length B, the second length B and the second width B, and the sealing devices are respectively in sealing connection with corresponding positions of the adjacent first membrane unit or the second membrane unit to form a pure water cavity structure taking the first width B as an outlet.
5. The flow direction non-parallel fouling resistant membrane element of claim 4 wherein: the first central pipe and the second central pipe are both single-end closed water inlet pipes, and the closed ends are positioned on one side of the first length A;
the side surfaces of the first central pipe and the second central pipe are provided with through holes for flowing water to pass through;
the ratio of the number of the first membrane units to the number of the second membrane units is 1: 9-9: 1 and the number of membrane units is less than or equal to 10;
the number of the second central tubes corresponds to the number of the second membrane units one by one;
the first membrane unit is a reverse osmosis membrane unit, a nanofiltration membrane unit or an ultrafiltration membrane unit;
the second membrane unit is a reverse osmosis membrane unit, a nanofiltration membrane unit or an ultrafiltration membrane unit.
6. The flow direction non-parallel fouling resistant membrane element of claim 5 wherein: when the membrane units are unfolded, a plurality of membrane units are arranged in a stacked manner.
7. The flow direction non-parallel fouling resistant membrane element of claim 5 wherein: when the membrane units are unfolded, the first membrane units and the second membrane units are arranged in an extending way;
when the membrane unit is unfolded, the maximum distance between the membrane unit and the adjacent membrane unit is defined as D1The total circumference of the central tube group is defined as D2And D is1≥D2(ii) a Or
The first film is cutAt least one of the units is defined as a first membrane group, the rest first membrane units and second membrane units are defined as second membrane groups, and the first membrane groups and the second membrane groups are arranged in a stretching way; defining the maximum distance between the first membrane group and the second membrane group as D when the membrane unit is unfolded3The total circumference of the central tube group is defined as D2And D is3≥D2。
8. The flow direction non-parallel fouling resistant membrane element of claim 6 or 7, wherein: the water producing grid mesh is arranged in the pure water cavity structure and is not in contact with the water inlet surface, the water inlet grid mesh is arranged on the water inlet surface of the first membrane unit and is not in contact with the water producing surface, and the water inlet grid mesh is arranged on the water inlet surface of the second membrane unit and is not in contact with the water producing surface;
the water inlet grid mesh is a 3D net-structured water inlet grid mesh;
the concentrated water grid mesh is a 3D net-shaped structure concentrated water grid mesh;
the water producing grid mesh is a 3D diversion and distribution dense water grid mesh;
the thickness of the water inlet grid and the thick water grid net sheet is 13-34 mil;
the thickness of the water producing grid mesh sheet is 8-15 mil;
the sealing material is polyurethane or epoxy glue;
the sealing device is made of polyurethane or epoxy glue.
9. The flow direction non-parallel fouling resistant membrane element of claim 8 wherein: the thickness of the water inlet grid and the thick water grid net sheet is 17-24 mil;
the thickness of the water producing grid mesh sheet is 9-12 mil;
the lengths of the first length A and the first length B are both 26-125 cm;
the lengths of the first width A and the first width B are both 15-50 cm.
10. A filter cartridge, characterized in that: having flow direction non-parallel fouling resistant membrane elements as claimed in any one of claims 1 to 9.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822007396 | 2018-11-30 | ||
| CN201811462450 | 2018-11-30 | ||
| CN2018220073969 | 2018-11-30 | ||
| CN2018114624507 | 2018-11-30 |
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| CN201910190099.9A Pending CN109908763A (en) | 2018-11-30 | 2019-03-13 | Flow to non-flat line resistant formula membrane component and the filter core with the membrane component |
| CN201920322235.0U Active CN210410234U (en) | 2018-11-30 | 2019-03-13 | Flow direction non-parallel type stain-resistant membrane element and filter element with same |
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| CN201910190099.9A Pending CN109908763A (en) | 2018-11-30 | 2019-03-13 | Flow to non-flat line resistant formula membrane component and the filter core with the membrane component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109908763A (en) * | 2018-11-30 | 2019-06-21 | 佛山市云米电器科技有限公司 | Flow to non-flat line resistant formula membrane component and the filter core with the membrane component |
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| KR102385840B1 (en) * | 2016-10-31 | 2022-04-11 | 도레이 카부시키가이샤 | Separator element |
| CN207667450U (en) * | 2017-08-21 | 2018-07-31 | 艾欧史密斯（南京）水处理产品有限公司 | Membrane component and filter core |
| CN109908763A (en) * | 2018-11-30 | 2019-06-21 | 佛山市云米电器科技有限公司 | Flow to non-flat line resistant formula membrane component and the filter core with the membrane component |
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2019
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| CN109908763A (en) * | 2018-11-30 | 2019-06-21 | 佛山市云米电器科技有限公司 | Flow to non-flat line resistant formula membrane component and the filter core with the membrane component |
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