CN104236159B - A kind of multiple-energy-source driving refrigeration system and refrigerating method - Google Patents
A kind of multiple-energy-source driving refrigeration system and refrigerating method Download PDFInfo
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- CN104236159B CN104236159B CN201410516643.1A CN201410516643A CN104236159B CN 104236159 B CN104236159 B CN 104236159B CN 201410516643 A CN201410516643 A CN 201410516643A CN 104236159 B CN104236159 B CN 104236159B
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Abstract
The present invention relates to a kind of multiple-energy-source driving refrigeration system and refrigerating method.One of which multiple-energy-source driving refrigeration system includes ejector refrigeration part and compression-type refrigeration part, ejector refrigeration part includes gas-liquid separator, compression-type refrigeration part includes compressor, evaporator and the throttle part for the working medium entrances for being serially connected in evaporator for refrigeration, the sender property outlet of compressor is connected with for by reducing the regenerative apparatus that temperature makes working medium be converted into liquid phase admixture, between regenerative apparatus and the working medium entrances of throttle part condensing unit is separated provided with least one-level gas-phase working medium, gas-phase working medium separation condensing unit includes secondary gas-liquid separator and secondary regenerative apparatus, the sender property outlet of secondary gas-liquid separator separates the hot working fluid channel outlet connection of secondary regenerative apparatus in condensing unit with regenerative apparatus or higher level's gas-phase working medium, the sender property outlet of secondary regenerative apparatus and the working medium entrances of restricting element are connected.Above-mentioned multiple-energy-source driving refrigeration system can realize lower cryogenic temperature.
Description
Technical field
The present invention relates to a kind of multiple-energy-source driving refrigeration system and refrigerating method.
Background technology
Ejector refrigeration has the advantages that to realize refrigeration using low-grade low-temperature heat source, and system architecture it is simple, without fortune
Dynamic component, reliability are high.However, conventional spray refrigeration system uses one-component refrigerant working medium, and by injector pressure ratio
Less limitation, it is difficult to reach the requirement of the refrigeration working medium evaporating pressure under relatively low cryogenic temperature, therefore cryogenic temperature is higher so that
Its practical application is very limited.Therefore, in order to obtain relatively low cryogenic temperature, the cascade refrigeration circulatory system is generally used, is adopted
With multiple non-azeotropic refrigerant as refrigerant, according to non-azeotropic mixed working medium under gas-liquid phase equilibrium state gas phase and liquid phase
The characteristics of concentration of component is different, are separated higher boiling liquid refrigerant and low boiling gaseous working medium using gas-liquid separator, are led to
Cross the evaporation of higher boiling working medium to realize that low boiling working fluid is condensed, it is only necessary to which a compressor just can obtain relatively low cryogenic temperature.
The existing cascade refrigeration circulatory system is a kind of low as disclosed in the Chinese patent of Application No. 201010510850.8
The composite low-temperature refrigerating system of grade heat energy process auxiliary drive, including ejector refrigeration part（That is low grade heat energy slave part）With
Compression-type refrigeration part, ejector refrigeration part includes the generator being sequentially connected, injector, condenser, gas-liquid separator, working medium
Other corresponding backheat elements such as pump and the first regenerator, compression-type refrigeration part include compressor, the evaporator for refrigeration,
The backheat for being serially connected in the second throttle part of the working medium entrances of evaporator and being formed by the backheat element such as condenser/evaporator, regenerator
Device, the working medium entrances of compressor and the gas-phase working medium of gas-liquid separator are exported（That is gas outlet）It is connected.In order to obtain preferably
Segregator is additionally provided with performance, gas-liquid separator（That is the 4th regenerator）.During work, composite low-temperature refrigerating system passes through low product
The injector that position heat energy is driven realizes that higher boiling working medium is condensed into liquid so that as low boiling working fluid cooling medium, injector is another
One effect is low boiling working fluid pressure of inspiration(Pi) of the increase in compressor air suction mouthful, reduces compressor pressure ratios, realizes lower refrigeration
Temperature.Because the compression process of higher boiling working medium in the circulation is completed by injector, therefore saving compressor wasted work amount,
Injector also improves the pressure of inspiration(Pi) of compressor air suction mouthful low boiling working fluid, it helps further reduce compressor power consumption.But
It is, due to the limitation of gas-liquid separator gas-liquid separation performance, still to have more higher boiling working medium point and enter evaporator, so as to influence
Refrigeration system refrigeration performance, cryogenic temperature is higher.
The content of the invention
Refrigeration system is driven it is an object of the invention to provide a kind of multiple-energy-source that can realize lower cryogenic temperature, together
When, drive refrigerating method present invention also offers a kind of multiple-energy-source that can realize lower cryogenic temperature.
A kind of technical scheme of multiple-energy-source driving refrigeration system use is in the present invention：A kind of multiple-energy-source driving refrigeration system
System, including ejector refrigeration part and compression-type refrigeration part, the ejector refrigeration part include gas-liquid separator, the compression
Refrigerating part includes compressor, the evaporator for refrigeration and is serially connected in the throttle part of the working medium entrances of evaporator, the pressure
The sender property outlet of contracting machine is connected with for by reducing the regenerative apparatus that temperature makes working medium be converted into liquid phase admixture, described
Between regenerative apparatus and the working medium entrances of the throttle part condensing unit, the gas phase are separated provided with least one-level gas-phase working medium
Working medium separation condensing unit includes secondary gas-liquid separator and secondary regenerative apparatus, the working medium entrances of the secondary gas-liquid separator
The thermal technology of secondary regenerative apparatus in condensing unit is separated with the hot working fluid channel outlet or higher level's gas-phase working medium of the regenerative apparatus
Matter channel outlet is connected, the hot working fluid channel outlet of the secondary regenerative apparatus of most end one-level gas-phase working medium separation condensing unit and institute
State the working medium entrances connection of throttle part.
The secondary regenerative apparatus includes at least one secondary backheat element, the liquid phase working fluid of the secondary gas-liquid separator
Outlet is connected with secondary throttle part, and the cold working medium of the sender property outlet of secondary throttle part and at least one secondary backheat element is led to
Road is concatenated.
The secondary backheat element includes condenser/evaporator, and the hot working fluid passage of the condenser/evaporator is serially connected in described time
The gas-phase working medium of level gas-liquid separator is exported and cold working medium passage entrance is connected with the secondary throttle part；The secondary backheat
Element also includes the segregator being arranged in secondary gas-liquid separator, the outlet of cold working medium passage and the fractional condensation of condenser/evaporator
The working medium entrances connection of device, the driving fluid entrance of the sender property outlet of the segregator and injector in the ejector refrigeration part
Connection is connected after the corresponding regenerative apparatus with the driving fluid entrance.
The regenerative apparatus includes compressor regenerator, and the cold working medium passage of compressor regenerator is serially connected in ejector refrigeration portion
Between the working medium pump and generator that divide, the hot working fluid feeder connection of compressor regenerator connects with the sender property outlet of the compressor
It is logical.The waste heat for setting compressor regenerator to be capable of effective recycling compressor discharge working medium is added to the medium in generator
Heat, further lifting system Energy Efficiency Ratio, significantly improves refrigerating efficiency.
The regenerative apparatus also includes being serially connected between the compressor regenerator and the secondary gas-liquid separator of the first order
Condenser.
The technical scheme of multiple-energy-source driving refrigerating method use is in the present invention：Multiple-energy-source drives refrigerating method, this method
Comprise the following steps：The working medium of the sender property outlet outflow of the compressor is reduced into temperature by regenerative apparatus, working medium is converted
For liquid phase admixture；The working medium that regenerative apparatus is exported to outflow again is separated after condensing unit by least one-level gas-phase working medium
The working medium entrances of the throttle part concatenated with evaporator are passed through again, and the gas-phase working medium separation condensing unit includes secondary gas-liquid point
From device and secondary regenerative apparatus, the working medium entrances of the secondary gas-liquid separator and the hot working fluid channel outlet of the regenerative apparatus
Or the hot working fluid channel outlet of secondary regenerative apparatus is connected in higher level's gas-phase working medium separation condensing unit, most end one-level gas-phase working medium
The hot working fluid channel outlet for separating the secondary regenerative apparatus of condensing unit is connected with the working medium entrances of the throttle part.
The secondary regenerative apparatus includes at least one secondary backheat element, the liquid phase working fluid of the secondary gas-liquid separator
Outlet is connected with secondary throttle part, and the cold working medium of the sender property outlet of secondary throttle part and at least one secondary backheat element is led to
Road is concatenated.
The secondary backheat element includes condenser/evaporator, and the hot working fluid passage of the condenser/evaporator is serially connected in described time
The gas-phase working medium of level gas-liquid separator is exported and cold working medium passage entrance is connected with the secondary throttle part；The secondary backheat
Element also includes the segregator being arranged in secondary gas-liquid separator, the outlet of cold working medium passage and the fractional condensation of condenser/evaporator
The working medium entrances connection of device, the driving fluid entrance of the sender property outlet of the segregator and injector in the ejector refrigeration part
Connect or connected after corresponding backheat element with the driving fluid entrance.
The regenerative apparatus includes compressor regenerator, and the cold working medium passage of compressor regenerator is serially connected in ejector refrigeration portion
Between the working medium pump and generator that divide, the hot working fluid feeder connection of compressor regenerator connects with the sender property outlet of the compressor
Logical, the regenerative apparatus also includes the condensation being serially connected between the compressor regenerator and the secondary gas-liquid separator of the first order
Device.
The gas-phase working medium separation condensing unit is provided only with one-level.
The present invention uses above-mentioned technical proposal, and multiple-energy-source driving refrigeration system includes ejector refrigeration part and compression-type refrigeration
Part, the ejector refrigeration part includes gas-liquid separator, and the compression-type refrigeration part includes compressor, the steaming for refrigeration
Hair device and the throttle part for the working medium entrances for being serially connected in evaporator, the sender property outlet of the compressor are connected with for by reduction
Temperature makes working medium be converted into the regenerative apparatus of liquid phase admixture, the working medium entrances of the regenerative apparatus and the throttle part
Between include secondary gas-liquid separation provided with least one-level gas-phase working medium separation condensing unit, the gas-phase working medium separation condensing unit
Device and secondary regenerative apparatus, the sender property outlet of the secondary gas-liquid separator are separated with the regenerative apparatus or higher level's gas-phase working medium
The hot working fluid channel outlet connection of secondary regenerative apparatus, the sender property outlet of the secondary regenerative apparatus and the section in condensing unit
The working medium entrances connection of stream unit, can so form two-stage separation, from the gas phase of the secondary gas-liquid separation device of most end one-level
The overwhelming majority that sender property outlet enters throttle part is low boiling working fluid, and compressor pressure ratios are reduced by using injector,
Lower cryogenic temperature can be achieved, refrigeration performance is improved, low boiling working fluid refrigerating effect per unit swept volume holds than higher boiling working medium unit
Product refrigerating capacity is big, can reduce compressor volume.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the embodiment one of multiple-energy-source driving refrigeration system in the present invention；
Fig. 2 is a kind of structural representation of the embodiment two of multiple-energy-source driving refrigeration system in the present invention.
Each reference is corresponding entitled in figure：1- generators, 2- injectors, the regenerators of 3- first, 4- first is condensed
Device, the gas-liquid separators of 5- first, the segregators of 6- first, 7- compressors, the regenerators of 8- second, the regenerators of 9- the 3rd, 10- second is cold
Condenser, the gas-liquid separators of 11- second, the segregators of 12- second, 13- condenser/evaporators, the regenerators of 14- the 4th, 15- the 3rd throttles
Valve, 16- evaporators, 17- second throttle, 18- first throttle valves, 19- working medium pumps.
Embodiment
In the present invention a kind of multiple-energy-source driving refrigeration system embodiment one as shown in figure 1, be a kind of multiple-energy-source driving-
100~-30 DEG C of warm area composite refrigeration systems, including compressor-type refrigerating part and ejector refrigeration part.
Wherein ejector refrigeration part includes generator 1, injector 2, the first regenerator 3, the first condenser 4, the first gas-liquid
The first segregator 6 is additionally provided with separator 5, first throttle valve 18 and working medium pump 19 etc., the first gas-liquid separator 5, it is described to occur
The outlet of device 1 is connected with the Working-fluid intaking of injector 2, and injector 2 is exported through the first regenerator 3 and the entrance of the first condenser 4
It is connected, the outlet of the first condenser 4 is connected with the entrance of the first gas-liquid separator 5, and the bottom liquid outlet of the first gas-liquid separator 5 is divided into
Two-way, is connected through working medium pump 19, the first regenerator 3 and the second regenerator 8 with the entrance of generator 1 successively all the way, another road access
The entrance of first throttle valve 18, the top gas outlet of the first gas-liquid separator 5 is connected with the air entry of compressor 7.Second regenerator 8 is formed
Compressor regenerator.
Compressor-type refrigerating part includes compressor 7, the 3rd choke valve 15 and evaporator 16 for refrigeration etc., Section three
Stream valve 15 is the throttle part for the working medium entrances for being serially connected in evaporator 16.The sender property outlet of compressor 7 is connected with for by drop
Low temperature makes working medium be converted into the regenerative apparatus of liquid phase admixture, including the second regenerator 8, the 3rd regenerator 9 and second
Condenser 10.Between second condenser 10 and the working medium entrances of the 3rd choke valve 15 condensation dress is separated provided with one-level gas-phase working medium
Put, gas-phase working medium separation condensing unit includes secondary gas-liquid separator and secondary regenerative apparatus, secondary gas-liquid separator is the
Two gas-liquid separators 11, the working medium entrances of the second gas-liquid separator 11 are connected with the sender property outlet of the second condenser 10；Backheat is filled
Put many including condenser/evaporator 13, the 4th regenerator 14 and the second segregator 12 being arranged in the second gas-liquid separator 11 etc.
Individual secondary backheat element.The high pressure side inlet of condenser/evaporator 13, condensation evaporation are accessed in the top gas outlet of second gas-liquid separator 11
The high pressure side outlet of device 13 accesses the entrance of evaporator 16 through the 4th regenerator 14, the 3rd choke valve 15, and evaporator 16 is exported through the 4th
Regenerator 14 accesses the low pressure side inlet of condenser/evaporator 13, and the bottom liquid outlet of the second gas-liquid separator 11 connects through second throttle 17
Enter the low pressure side inlet of condenser/evaporator 13, the low side outlets of condenser/evaporator 13 after the second segregator 12 with first throttle valve 18
Outlet is connected, then accesses the driving fluid entrance of injector 2 through the first segregator 6 and the 3rd regenerator 9.
Mixed working fluid (refrigerant) used in above-mentioned multiple-energy-source driving refrigeration system includes higher boiling working medium and low boiling work
Matter, the higher boiling working medium be R600a, R152a, R134a and R22 in one kind, the low boiling working fluid be R23, R170,
One kind in R290 and R32.
During work, liquid mixed refrigerant heating is vaporizated into high pressure superheater state refrigerant vapour in generator 1, is used as work
Make gas into the cold working medium passage outlet of the 3rd regenerator of 2 injection of injector 9（Low side outlets）Low pressure mix refrigerant steam
Vapour, refrigerant vapour mixing supercharging in injector 2, the intermediate pressure state superheated refrigerant mixed vapour that injector 2 is exported
Vehicle repair major mix refrigerant is further cooled into the first condenser 4 after being exchanged heat through the first regenerator 3, the first gas is entered back into
Liquid/gas separator 5 realizes that vapor phase refrigerant is through the further of the first segregator 6 in gas phase and liquid phase separation, the first gas-liquid separator 5
After purification, gas phase portion is mainly low boiling point refrigerant and a small amount of higher boiling refrigerant, and liquid phase part is mainly higher boiling refrigeration
Agent and a small amount of low boiling point refrigerant, the bottom of the first gas-liquid separator 5 outflow liquid refrigerant are divided into two-way, all the way through working medium pump 19
Enter generator 1 after the first regenerator 3 and the heat exchange of the second regenerator 8 after pressurization and be heated the workflow for being vaporizated into injector 2
Body, another road, which enters the reducing pressure by regulating flow of first throttle valve 18, turns into low-temp low-pressure mix refrigerant, and the top of the first gas-liquid separator 5 is flowed
It is further that the gaseous refrigerant gone out enters the second condenser 10 after being exchanged heat through compressor 7, the second regenerator 8 and the 3rd regenerator 9
Vehicle repair major mix refrigerant is cooled to, the second gas-liquid separator 11 is entered back into and realizes gas phase and liquid phase separation, the second gas-liquid point
From vapor phase refrigerant in device 11 after the further purification of the second segregator 12, gas phase portion is mainly low boiling point refrigerant and few
Higher boiling refrigerant is measured, liquid phase part is mainly higher boiling refrigerant and a small amount of low boiling point refrigerant, the second gas-liquid separator 11
Bottom outflow liquid refrigerant, which enters the reducing pressure by regulating flow of second throttle 17, turns into low-temp low-pressure mix refrigerant, the second gas-liquid separation
The top of device 11 outflow gaseous refrigerant enter exchanged heat again through the 4th regenerator 14 after the condensation of the high-pressure side of condenser/evaporator 13, Section three
Flow the reducing pressure by regulating flow of valve 15 into the evaporation endothermic of evaporator 16 to freeze, flow out the low-temperature low-pressure refrigerant steam of evaporator 16 through the 4th
The low-temperature low-pressure refrigerant that regenerator 14 flows out after exchanging heat with second throttle 17 is mixed into the low-pressure side of condenser/evaporator 13 and steamed
Hair, the low pressure refrigerant after evaporation is mixed after being exchanged heat through the second segregator 12 with the low-temperature low-pressure refrigerant that first throttle valve 18 is exported
Entered after conjunction after the first segregator 6 and the heat exchange of the 3rd regenerator 9 by the high pressure refrigerant vapor injection from generator 1 and spray
Device 2.Through above-mentioned cyclic process, -100~-30 DEG C of cryogenic refrigeration temperature are obtained in evaporator 16.Above-mentioned cyclic process is also this
Multiple-energy-source drives the embodiment one of refrigerating method in invention.
Embodiment two with the difference of embodiment one as shown in Fig. 2 be, in the present embodiment, the work of the second segregator 12
Matter exports the working medium entrances for not accessing the first segregator 6, but is directly accessed the cold working medium passage entrance of the 3rd regenerator 9.
During work, liquid mixed refrigerant heating is vaporizated into high pressure superheater state refrigerant vapour in generator 1, is used as work
Make gas into the cold working medium passage outlet of the 3rd regenerator of 2 injection of injector 9（Low side outlets）Low pressure mix refrigerant steam
Vapour, refrigerant vapour mixing supercharging in injector 2, the intermediate pressure state superheated refrigerant mixed vapour that injector 2 is exported
Vehicle repair major mix refrigerant is further cooled into the first condenser 4 after being exchanged heat through the first regenerator 3, the first gas is entered back into
Liquid/gas separator 5 realizes that vapor phase refrigerant is through the further of the first segregator 6 in gas phase and liquid phase separation, the first gas-liquid separator 5
After purification, gas phase portion is mainly low boiling point refrigerant and a small amount of higher boiling refrigerant, and liquid phase part is mainly higher boiling refrigeration
Agent and a small amount of low boiling point refrigerant, the bottom of the first gas-liquid separator 5 outflow liquid refrigerant are divided into two-way, all the way through working medium pump 19
Enter generator 1 after the first regenerator 3 and the heat exchange of the second regenerator 8 after pressurization and be heated the workflow for being vaporizated into injector 2
Body, another road is exchanged heat after entering the reducing pressure by regulating flow of first throttle valve 18 into the first segregator 6, and the top of the first gas-liquid separator 5 is flowed
It is further that the gaseous refrigerant gone out enters the second condenser 10 after being exchanged heat through compressor 7, the second regenerator 8 and the 3rd regenerator 9
Vehicle repair major mix refrigerant is cooled to, the second gas-liquid separator 11 is entered back into and realizes gas phase and liquid phase separation, the second gas-liquid point
From vapor phase refrigerant in device 11 after the further purification of the second segregator 12, gas phase portion is mainly low boiling point refrigerant and few
Higher boiling refrigerant is measured, liquid phase part is mainly higher boiling refrigerant and a small amount of low boiling point refrigerant, the second gas-liquid separator 11
Bottom outflow liquid refrigerant, which enters the reducing pressure by regulating flow of second throttle 17, turns into low-temp low-pressure mix refrigerant, the second gas-liquid separation
The top of device 11 outflow gaseous refrigerant enter exchanged heat again through the 4th regenerator 14 after the condensation of the high-pressure side of condenser/evaporator 13, Section three
Flow the reducing pressure by regulating flow of valve 15 into the evaporation endothermic of evaporator 16 to freeze, flow out the low-temperature low-pressure refrigerant steam of evaporator 16 through the 4th
The low-temperature low-pressure refrigerant that regenerator 14 flows out after exchanging heat with second throttle 17 is mixed into the low-pressure side of condenser/evaporator 13 and steamed
Hair, the low pressure refrigerant after evaporation is mixed after being exchanged heat through the second segregator 12 with the low-temperature low-pressure refrigerant that the first segregator 6 is exported
Close and injector 2 is entered by the high pressure refrigerant vapor injection from generator 1 after the heat exchange of the 3rd regenerator 9 again.Followed through above-mentioned
Ring process, obtains -100~-30 DEG C of cryogenic refrigeration temperature in evaporator 16.Above-mentioned cyclic process is also multiple-energy-source in the present invention
Drive the embodiment two of refrigerating method.
In the above-described embodiments, the gas-phase working medium separation condensing unit in multiple-energy-source driving refrigeration system is provided only with one-level,
In other embodiments of the invention, gas-phase working medium separation condensing unit can also be set more than two-stage.In addition, above-described embodiment
In be provided with the first regenerator 3, the second regenerator 8, the 3rd regenerator 9, the 4th regenerator 14, and regenerator belongs to refrigeration machine technology
Commonly used in field but nonessential installation part, can also all save in other embodiments of the invention or part is saved
Go, can also need to increase regenerator in addition to the position that working medium is cooled down.
Claims (10)
1. a kind of multiple-energy-source drives refrigeration system, including ejector refrigeration part and compression-type refrigeration part, the ejector refrigeration portion
Dividing includes gas-liquid separator, and the compression-type refrigeration part includes compressor, the evaporator for refrigeration and is serially connected in evaporator
Working medium entrances throttle part, it is characterised in that：The sender property outlet of the compressor is connected with for being made by reducing temperature
Working medium is converted into the regenerative apparatus of liquid phase admixture, is set between the regenerative apparatus and the working medium entrances of the throttle part
There is at least one-level gas-phase working medium to separate condensing unit, the gas-phase working medium separation condensing unit includes secondary gas-liquid separator and secondary
Level regenerative apparatus, the working medium entrances of the secondary gas-liquid separator and the hot working fluid channel outlet of the regenerative apparatus or higher level's gas
The hot working fluid channel outlet connection of secondary regenerative apparatus in phase working medium separation condensing unit, the separation condensation of most end one-level gas-phase working medium
The hot working fluid channel outlet of the secondary regenerative apparatus of device is connected with the working medium entrances of the throttle part.
2. a kind of multiple-energy-source driving refrigeration system according to claim 1, it is characterised in that：The secondary regenerative apparatus bag
At least one secondary backheat element is included, the liquid phase working fluid outlet of the secondary gas-liquid separator is connected with secondary throttle part, secondary
The sender property outlet of level throttle part is concatenated with the cold working medium passage of at least one secondary backheat element.
3. a kind of multiple-energy-source driving refrigeration system according to claim 2, it is characterised in that：The secondary backheat element bag
Condenser/evaporator is included, the hot working fluid passage of the condenser/evaporator is serially connected in the gas-phase working medium outlet of the secondary gas-liquid separator
And cold working medium passage entrance is connected with the secondary throttle part；The secondary backheat element also includes being arranged on secondary gas-liquid point
From the segregator in device, the cold working medium passage outlet of condenser/evaporator is connected with the working medium entrances of the segregator, the fractional condensation
The sender property outlet of device is with the driving fluid entrance connection of injector in the ejector refrigeration part or by the corresponding backheat
Connected after device with the driving fluid entrance.
4. a kind of multiple-energy-source driving refrigeration system according to claim 1 or 2 or 3, it is characterised in that：The regenerative apparatus
Including compressor regenerator, the cold working medium passage of compressor regenerator be serially connected in ejector refrigeration part working medium pump and generator it
Between, the hot working fluid feeder connection of compressor regenerator is connected with the sender property outlet of the compressor.
5. a kind of multiple-energy-source driving refrigeration system according to claim 4, it is characterised in that：The regenerative apparatus also includes
It is serially connected in the condenser between the compressor regenerator and the secondary gas-liquid separator of the first order.
6. multiple-energy-source drives refrigerating method, it is characterised in that this method comprises the following steps：By the sender property outlet of the compressor
The working medium of outflow reduces temperature by regenerative apparatus, working medium is converted into liquid phase admixture；Regenerative apparatus is exported again and flowed
The working medium gone out separates the working medium for being passed through the throttle part concatenated with evaporator after condensing unit again by least one-level gas-phase working medium
Entrance, the gas-phase working medium separation condensing unit includes secondary gas-liquid separator and secondary regenerative apparatus, the secondary gas-liquid point
Separated from the working medium entrances of device with the hot working fluid channel outlet of the regenerative apparatus or higher level's gas-phase working medium secondary in condensing unit
The hot working fluid channel outlet connection of regenerative apparatus, the thermal technology of the secondary regenerative apparatus of most end one-level gas-phase working medium separation condensing unit
Matter channel outlet is connected with the working medium entrances of the throttle part.
7. multiple-energy-source according to claim 6 drives refrigerating method, it is characterised in that：The secondary regenerative apparatus is included extremely
A few secondary backheat element, the liquid phase working fluid outlet of the secondary gas-liquid separator is connected with secondary throttle part, secondary section
The sender property outlet of stream unit is concatenated with the cold working medium passage of at least one secondary backheat element.
8. multiple-energy-source according to claim 7 drives refrigerating method, it is characterised in that：The secondary backheat element includes cold
Solidifying evaporator, the hot working fluid passage of the condenser/evaporator is serially connected in the gas-phase working medium outlet of the secondary gas-liquid separator and cold
Working medium passage entrance is connected with the secondary throttle part；The secondary backheat element also includes being arranged on secondary gas-liquid separator
Interior segregator, the cold working medium passage outlet of condenser/evaporator is connected with the working medium entrances of the segregator, the segregator
Sender property outlet is with the driving fluid entrance connection of injector in the ejector refrigeration part or by corresponding secondary backheat element
Connected afterwards with the driving fluid entrance.
9. the multiple-energy-source driving refrigerating method according to claim 6 or 7 or 8, it is characterised in that：The regenerative apparatus includes
Compressor regenerator, the cold working medium passage of compressor regenerator is serially connected between the working medium pump of ejector refrigeration part and generator,
The hot working fluid feeder connection of compressor regenerator is connected with the sender property outlet of the compressor, and the regenerative apparatus also includes concatenation
Condenser between the compressor regenerator and the secondary gas-liquid separator of the first order.
10. the multiple-energy-source driving refrigerating method according to claim 6 or 7 or 8, it is characterised in that：The gas-phase working medium point
One-level is provided only with from condensing unit.
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| CN104930752B (en) * | 2015-05-29 | 2017-10-13 | 浙江工业大学 | The injection compression refrigerating system driven using the low grade heat energy of subcooler |
| CN104913542B (en) * | 2015-05-29 | 2017-10-13 | 浙江工业大学 | The injection compression refrigerating system driven using the low grade heat energy of gas-liquid separator |
| CN104930751B (en) * | 2015-05-29 | 2017-10-13 | 浙江工业大学 | Injection compression refrigerating system with subcooler and utilization low grade heat energy |
| CN116294319A (en) * | 2023-03-13 | 2023-06-23 | 河南科技大学 | Multistage mixed working medium refrigerating system and circulating method |
| CN116202248A (en) * | 2023-03-13 | 2023-06-02 | 河南科技大学 | Mixed working medium multistage separation low-temperature refrigerating system and circulating method |
| CN116202240A (en) * | 2023-03-13 | 2023-06-02 | 河南科技大学 | Thermally driven low-temperature injection refrigeration system and circulation method |
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