CN104315741B - Mixed working fluid spray type refrigerating blood circulation and refrigerating and circulating method - Google Patents
Mixed working fluid spray type refrigerating blood circulation and refrigerating and circulating method Download PDFInfo
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- CN104315741B CN104315741B CN201410516917.7A CN201410516917A CN104315741B CN 104315741 B CN104315741 B CN 104315741B CN 201410516917 A CN201410516917 A CN 201410516917A CN 104315741 B CN104315741 B CN 104315741B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
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Abstract
The present invention relates to mixed working fluid spray type refrigerating blood circulation and refrigerating and circulating method.Wherein mixed working fluid spray type refrigerating blood circulation includes gas-liquid separator, regenerator, vaporizer and restricting element, the gas-phase working medium outlet of gas-liquid separator is connected with the hot working fluid feeder connection of regenerator and constitutes gas-phase working medium and separate condensing unit, it is provided with at least one-level secondary gas-phase working medium between hot working fluid channel outlet and the restricting element of regenerator and separates condensing unit, secondary gas-phase working medium separation condensing units at different levels all include that the secondary gas-liquid separator being connected with the hot working fluid channel outlet of regenerator in higher level and the gas-phase working medium with secondary gas-liquid separator export the secondary regenerator being connected, in most end one-level, the secondary hot working fluid channel outlet of regenerator is connected with the working medium entrance of restricting element.Above-mentioned cooling cycle system can reduce the compression ratio needed for ejector, is advantageously implemented the separation of mixed working fluid, energy-conservation, simple in construction, stable.
Description
Technical field
The present invention relates to mixed working fluid spray type refrigerating blood circulation and refrigerating and circulating method.
Background technology
Ejector refrigeration system is the refrigeration system of a kind of heat-driven, the low grade heat energies such as available industrial exhaust heat, used heat, solar energy, geothermal energy, the environmentally friendly working medium such as water, Hydrocarbon or hydrogen fluorohydrocarbon class can be used, and system structure is simple, without moving component, reliability height.Therefore, ejector refrigeration system is for saving the energy, protecting environment significant.But, the work efficiency of ejector and the relation of compression ratio are very close, and increasing compression ratio can significantly reduce the work efficiency of ejector, and i.e. along with the reduction of cryogenic temperature, the efficiency of injection refrigerating system can drastically reduce；And the ejector compression of conventional spray cooling cycle system is smaller, it is difficult to reaching cooling medium required condensing pressure requirement when chilling temperature is higher of condenser, therefore the cryogenic temperature of conventional spray kind of refrigeration cycle is of a relatively high.Additionally, after the difference of ejector back pressure Yu injection pressure exceedes certain numerical value, after i.e. ejector compression ratio increases to certain numerical value, jet coefficient will drastically decline, this also means that conventional spray formula refrigeration is difficult to relatively low cryogenic temperature.
Application No. 201210116545.X, Authorization Notice No. are that the Chinese patent of CN 102620461 B discloses a kind of Auto-cascade jet type refrigerator, including the first generator being sequentially connected with, the first ejector, the first condenser, the first gas-liquid separator and working medium pump (the i.e. first circulating pump), also include the first regenerator (i.e. condenser/evaporator) and the vaporizer for refrigeration.The gas-phase working medium outlet of the first gas-liquid separator is connected with the hot working fluid feeder connection of the first regenerator, constitutes gas-phase working medium separation condensing unit；The hot working fluid channel outlet of the first regenerator is connected with first throttle element, and the sender property outlet of first throttle element is connected with vaporizer.First gas-liquid separator liquid phase working fluid outlet be divided into two-way, a road connects with working medium pump, separately lead up to second section fluid element and the first regenerator cold working medium feeder connection connection；The cold working medium channel outlet of the first regenerator and the sender property outlet of vaporizer are connected with the driving fluid entrance of working medium pump simultaneously.
During work, gases at high pressure are become after being heated by external heat source in the first generator rich in high boiling working medium, the sender property outlet of the first generator enter the first ejector rich in high boiling Working medium gas as working fluid, injection come flash-pot rich in lower boiling working medium and from regenerator rich in high boiling working medium, mixed gas is reached condensing pressure by injection boosting, and enters the first condenser heat rejection；Fluid mixture is by after partial liquefaction, and gas-liquid mixture enters the first gas-liquid separator, and wherein the part rich in the liquid phase fluid of high boiling point working medium returns to the first generator by working medium pump after being pressurizeed；Another part enters regenerator evaporation endothermic rich in high boiling working medium liquid phase fluid after second section fluid element, is then return to the first ejector；In first gas-liquid separator, the remaining gaseous fluid rich in low boiling working fluid is cooled to liquid in regenerator, and after first throttle element, enter evaporator evaporation heat absorption acquisition refrigeration, being then return to the first ejector, system completes one action process.This refrigeration machine uses the method for Auto-cascade cycle to reduce the compression ratio that refrigeration system needs to reach, and ejector refrigeration technology can be utilized to realize relatively low cryogenic temperature.But, in actual application, owing to being limited by ejector low compression ratio, in system, the normal boiling point of mixed working fluid can not differ the biggest so that in system, the separation of mixed working fluid is the most difficult, which limits its actual application, according to the twin-stage spray pattern arranging the second ejector, structure then can be caused complicated, and cost is high, the problem of functional reliability difference.
Summary of the invention
It is an object of the invention to provide a kind of mixed working fluid spray type refrigerating blood circulation, it is possible to reduce the compression ratio needed for ejector, conveniently realize the separation of mixed working fluid, thus obtain relatively low cryogenic temperature；Meanwhile, present invention also offers a kind of mixed working fluid spray type refrigerating round-robin method.
nullIn the present invention, mixed working fluid spray type refrigerating blood circulation the technical scheme is that mixed working fluid spray type refrigerating blood circulation，Including gas-liquid separator、Regenerator、For the vaporizer freezed and the restricting element of the working medium entrance being connected to vaporizer，The gas-phase working medium outlet of described gas-liquid separator is connected with the hot working fluid feeder connection of regenerator and constitutes gas-phase working medium and separate condensing unit，It is provided with at least one-level secondary gas-phase working medium between the hot working fluid channel outlet of described regenerator and described restricting element and separates condensing unit，Described secondary gas-phase working medium separation condensing units at different levels all include that the secondary gas-liquid separator being connected with the hot working fluid channel outlet of regenerator in higher level and the gas-phase working medium with secondary gas-liquid separator export the secondary regenerator being connected，In most end one-level, the secondary hot working fluid channel outlet of regenerator is connected with the working medium entrance of described restricting element；The liquid phase working fluid outlet connection of described secondary gas-liquid separator has secondary restricting element, the sender property outlet of secondary restricting element connects with the cold working medium feeder connection of secondary regenerator, and the cold working medium channel outlet of secondary regenerator connects with the driving fluid entrance of the ejector of mixed working fluid spray type refrigerating blood circulation or connects with the cold working medium feeder connection of regenerator in higher level.
The cold working medium feeder connection of the sender property outlet of described vaporizer regenerator secondary with most end one-level connects or directly connects with the driving fluid entrance of the ejector of mixed working fluid spray type refrigerating blood circulation.
Described secondary gas-phase working medium separation condensing unit is provided only with one-level.
Mixed working fluid used by mixed working fluid spray type refrigerating blood circulation includes high boiling point working medium and low boiling working fluid, described high boiling point working medium is the mixing of one or more in R134a, R600, R152a, R245fa and R600a, and described low boiling working fluid is the mixing of one or more in R23, R32, R290 and R143a.
In the present invention, mixed working fluid spray type refrigerating round-robin method the technical scheme is that mixed working fluid spray type refrigerating round-robin method, the method comprises the following steps: the working medium hot working fluid channel outlet of regenerator from mixed working fluid spray type refrigerating blood circulation flowed out is by least one-level secondary gas-phase working medium separation condensing unit, described secondary gas-phase working medium separation condensing units at different levels all include that the secondary gas-liquid separator being connected with the hot working fluid channel outlet of regenerator in higher level and the gas-phase working medium with secondary gas-liquid separator export the secondary regenerator being connected, in most end one-level, the secondary hot working fluid channel outlet of regenerator is connected with the working medium entrance of the restricting element of the working medium entrance being connected to vaporizer and makes working medium enter evaporator refrigeration；The liquid phase working fluid outlet connection of described secondary gas-liquid separator has secondary restricting element, the sender property outlet of secondary restricting element connects with the cold working medium feeder connection of secondary regenerator, the cold working medium channel outlet of secondary regenerator connects with the driving fluid entrance of the ejector of mixed working fluid spray type refrigerating blood circulation or connects with the cold working medium feeder connection of regenerator in higher level, flows out the direct injected device injection of working medium of the cold working medium channel outlet of secondary regenerator or by injector injection after the cold working medium passage of upper level secondary regenerator.
The cold working medium feeder connection of the sender property outlet of described vaporizer regenerator secondary with most end one-level connects or directly connects with the driving fluid entrance of the ejector of mixed working fluid spray type refrigerating blood circulation, flows out the direct injected device injection of working medium of vaporizer or by injector injection after the cold working medium passage of regenerator secondary in most end one-level.
Described mixed working fluid spray type refrigerating blood circulation is the mixed working fluid single-stage jet refrigeration circulation system being provided only with first injector.
Mixed working fluid used by mixed working fluid spray type refrigerating blood circulation includes high boiling point working medium and low boiling working fluid, described high boiling point working medium is the mixing of one or more in R134a, R600, R152a, R245fa and R600a, and described low boiling working fluid is the mixing of one or more in R23, R32, R290 and R143a.
The present invention uses technique scheme, it is provided with at least one-level secondary gas-phase working medium between hot working fluid channel outlet and the restricting element of regenerator and separates condensing unit, described secondary gas-phase working medium separation condensing units at different levels all include that the secondary gas-liquid separator being connected with the hot working fluid channel outlet of regenerator in higher level and the gas-phase working medium with secondary gas-liquid separator export the secondary regenerator being connected, in most end one-level, the secondary hot working fluid channel outlet of regenerator is connected with the working medium entrance of described restricting element, thus form two-stage fractional condensation and separate, can effectively reduce the compression ratio of ejector, separation and the overlapping of mixed working fluid is realized under low compression ratio operating mode, obtain relatively low cryogenic temperature, improve the utilization rate of low-grade low-temperature heat source, it is substantially reduced the cryogenic temperature of traditional single stage jet refrigeration circulation, good energy-conserving effect, applied widely；And this refrigeration system is compared with prior art, it is not required to use twin-stage injection, simple in construction, stable, low cost in the case of refrigeration is identical.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment one of mixed working fluid spray type refrigerating blood circulation in the present invention；
Fig. 2 is the structural representation of the embodiment two of mixed working fluid spray type refrigerating blood circulation in the present invention.
Corresponding entitled of each reference in figure: 1-generator, 2-ejector, 3-cooler, 4-the first gas-liquid separator, 5-first throttle valve, 6-the first regenerator, 7-the second gas-liquid separator, 8-second throttle, 9-the second regenerator, 10-the 3rd choke valve, 11-vaporizer, 12-working medium pump.
Detailed description of the invention
In the present invention, the embodiment one of mixed working fluid spray type refrigerating blood circulation is as shown in Figure 1, including the generator 1 being sequentially connected with, ejector 2, cooler the 3, first gas-liquid separator 4 and working medium pump 12, also include first throttle valve the 5, first regenerator 6, for refrigeration vaporizer 11 and with the 3rd choke valve 10 of the working medium entrance being connected to vaporizer 11.
The liquid phase working fluid outlet of the first gas-liquid separator 4 is divided into two-way, and wherein a road is connected with working medium pump 12, and another road is connected with first throttle valve 5.First regenerator 6 has cold working medium passage and hot working fluid passage, and the cold working medium feeder connection of the first regenerator 6 is connected with the sender property outlet of first throttle valve 5, and cold working medium channel outlet connects with the driving fluid entrance of ejector 2.The gas-phase working medium outlet of the first gas-liquid separator 4 is connected with the hot working fluid feeder connection of the first regenerator 6, constitutes gas-phase working medium separation condensing unit.It is provided with one-level secondary gas-phase working medium between the hot working fluid channel outlet of the first regenerator 6 and the 3rd choke valve 10 and separates condensing unit, this secondary gas-phase working medium separation condensing unit includes the second gas-liquid separator 7 and the second regenerator 9, second gas-liquid separator 7 is connected with the hot working fluid channel outlet of the first regenerator 6, second regenerator 9 exports with the gas-phase working medium of the second gas-liquid separator 7 and is connected, and the second gas-liquid separator 7 and the second regenerator 9 respectively constitute secondary gas-liquid separator and secondary regenerator.
The liquid phase working fluid outlet of the second gas-liquid separator 7 connects the second throttle 8 having as secondary restricting element, the sender property outlet of second throttle 8 and the cold working medium feeder connection connection of the second regenerator 9, the cold working medium channel outlet of the second regenerator 9 connects with the cold working medium feeder connection of the first regenerator 6；The hot working fluid channel outlet of the second regenerator 9 is connected with the working medium entrance of the 3rd choke valve 10.The sender property outlet of vaporizer 11 and the cold working medium feeder connection connection of the second regenerator 9.In order to improve heat exchange efficiency, the first regenerator 6 and the second regenerator 9 all use countercurrent flow, i.e. hot working fluid passage flow to contrary with the flow direction of cold working medium passage.
Mixed working fluid used by above-mentioned mixed working fluid spray type refrigerating blood circulation includes high boiling point working medium and low boiling working fluid, described high boiling point working medium is the mixing of one or more in R134a, R600, R152a, R245fa and R600a, and described low boiling working fluid is the mixing of one or more in R23, R32, R290 and R143a.
During work, the liquid mixed working fluid in generator 1 is heated is vaporizated into high pressure superheater state working substance steam, enters, as working gas, the low pressure mixed working fluid steam that ejector 2 goes the cold working medium channel outlet (low side outlets) of injection the first regenerator 6.By the low pressure mixed working fluid steam of injection through the mixing pressurization of ejector 2, intermediate pressure state overheated mixed working fluid steam is become in ejector 2 outlet, enter back into and cooler 3 becomes after heat exchange vehicle repair major mixed working fluid, enter back into the first gas-liquid separator 4 and realize gas phase and liquid phase separation.After separation, gas phase portion is low boiling working fluid and high boiling point working medium, and liquid phase part is high boiling point working medium and a small amount of low boiling working fluid.First gas-liquid separator 4 bottom liquid phases working medium is divided into two-way, and a road enters the heated working fluid being vaporizated into ejector 2 of generator 1 after working medium pump 12 pressurizes, and another road enters first throttle valve 5 reducing pressure by regulating flow；First gas-liquid separator 4 top gas phase working medium enters the first regenerator 6 and carries out heat exchange with the mixed working fluid from first throttle valve 5 and the second regenerator 9 low-pressure side, and the saturated working substance steam of high pressure vapor enters the second gas-liquid separator 7 and again realizes gas phase and liquid phase separation after being cooled to vehicle repair major working medium.After separation, gas phase portion is low boiling working fluid and a small amount of high boiling point working medium, and liquid phase part is high boiling point working medium and a small amount of low boiling working fluid.The liquid phase working fluid flowed out bottom second gas-liquid separator 7 enters second throttle 8 reducing pressure by regulating flow, second gas-liquid separator 7 top outflow gas-phase working medium enters the second regenerator 9 and carries out heat exchange with the mixed working fluid from second throttle 8 and vaporizer 11, intermediate pressure state gas-phase working medium condenses, condensed liquid refrigerant enters after the 3rd choke valve 10 throttling becomes the working medium of low-temp low-pressure and enters vaporizer 11 evaporation endothermic refrigeration, the low pressure working fluid steam of outflow vaporizer 11 mixes with working medium after first throttle valve 5 after mixing with the working medium at second throttle 8 sender property outlet after the second regenerator 9 heat exchange again, afterwards, enter the first regenerator 6 heat exchange and become low area overheat working substance steam, ejector 2 is entered by the high-pressure working medium steam ejection from generator 1.Through above-mentioned cyclic process, vaporizer 11 obtains cryogenic refrigeration temperature, less than-40 DEG C low temperature deep refrigeratings can be realized.Above-mentioned cyclic process is also the embodiment one of mixed working fluid spray type refrigerating round-robin method in the present invention.
In the present invention, the embodiment two of mixed working fluid spray type refrigerating blood circulation is as shown in Figure 2, it is with the difference of embodiment one, in the present embodiment, the cold working medium channel outlet of the second regenerator 9 directly connects with the driving fluid entrance of ejector 2, and the sender property outlet of vaporizer 11 also directly connects with the driving fluid entrance of ejector 2.
nullDuring work，In generator 1, liquid mixed working fluid is heated is vaporizated into high pressure superheater working substance steam，Ejector 2 injection is entered from the first regenerator 6 cold working medium channel outlet (low side outlets) as working fluid、Second regenerator 9 low side outlets and the low pressure working fluid of vaporizer 11 outlet，Pressurization is mixed through ejector 2，The intermediate pressure state mixed working fluid steam of ejector 2 outlet enters in cooler 3 and is cooled to lower temperature gas-liquid two-phase mixed working fluid，Vehicle repair major mixed working fluid enters the first gas-liquid separator 4 and realizes gas phase and liquid phase separation，First gas-liquid separator 4 bottom liquid phases working medium is divided into two-way，One tunnel enters the heated working fluid being vaporizated into ejector 2 of generator 1 after working medium pump 12 pressurizes，Another road carries out heat exchange with the gas-phase working medium from the first gas-liquid separator 4 top after entering first throttle valve 5 reducing pressure by regulating flow，Low-pressure liquid working medium is evaporated，High pressure vapor working medium is cooled to the gas-liquid two-phase mixed working fluid of lower temperature and enters the second gas-liquid separator 7 and again realize gas phase and liquid phase separation，After separation, gas phase portion is low boiling working fluid and a small amount of high boiling point working medium，Liquid phase part is high boiling point working medium and a small amount of low boiling working fluid，Second gas-liquid separator 7 top outflow gas-phase working medium enters the second regenerator 9 and carries out heat exchange with the low pressure working fluid from second throttle 8，High pressure vapor working medium condenses，Condensed high-pressure liquid working medium enters after the 3rd choke valve 10 throttling becomes the working medium of low-temp low-pressure and enters vaporizer 11 evaporation endothermic refrigeration，Second throttle 8 exit low-pressure gas-liquid two-phase working substance absorb heat in the second regenerator 9 evaporation after with vaporizer 11 outlet low pressure working fluid steam、First regenerator 6 cold working medium channel outlet (low side outlets) working substance steam mixes，Ejector 2 is entered by the high-pressure working medium steam ejection from generator 1.Through above-mentioned cyclic process, vaporizer 11 obtains cryogenic refrigeration temperature, less than-40 DEG C low temperature deep refrigeratings can be realized.Above-mentioned cyclic process is also the embodiment two of mixed working fluid spray type refrigerating round-robin method in the present invention.
In the above-described embodiments, mixed working fluid spray type refrigerating blood circulation is the mixed working fluid single-stage jet refrigeration circulation system being provided only with first injector, and secondary gas-phase working medium separation condensing unit is provided only with one-level.In other embodiments of the invention, mixed working fluid spray type refrigerating blood circulation can also use two-stage of the prior art to spray, it is achieved preferably refrigeration, and secondary gas-phase working medium separation condensing unit can also arrange more than two-stage.It addition, in other embodiments, the liquid phase working fluid outlet of each gas-liquid separator can also replace with other connected modes, such as, exported by the liquid phase working fluid of the second gas-liquid separator 7 and connect with the working medium entrance of the first regenerator 6.Furthermore, in above-described embodiment, the regenerator in gas-phase working medium separation condensing units at different levels can also replace with other forms, carry out heat exchange for example with the working medium passed through in external source and hot working fluid passage, or use the working medium passed through in working medium that the liquid phase working fluid outlet of gas-liquid separator in other grade of gas-phase working medium separation condensing unit flows out and hot working fluid passage to carry out heat exchange.
Claims (8)
1. mixed working fluid spray type refrigerating blood circulation, including gas-liquid separator, regenerator, for the vaporizer freezed and the restricting element of the working medium entrance being connected to vaporizer, the gas-phase working medium outlet of described gas-liquid separator is connected with the hot working fluid feeder connection of regenerator and constitutes gas-phase working medium and separate condensing unit, it is characterized in that: be provided with at least one-level secondary gas-phase working medium between the hot working fluid channel outlet of described regenerator and described restricting element and separate condensing unit, described secondary gas-phase working medium separation condensing units at different levels all include that the secondary gas-liquid separator being connected with the hot working fluid channel outlet of regenerator in higher level and the gas-phase working medium with secondary gas-liquid separator export the secondary regenerator being connected, in most end one-level, the secondary hot working fluid channel outlet of regenerator is connected with the working medium entrance of described restricting element；The liquid phase working fluid outlet connection of described secondary gas-liquid separator has secondary restricting element, the sender property outlet of secondary restricting element connects with the cold working medium feeder connection of secondary regenerator, and the cold working medium channel outlet of secondary regenerator connects with the driving fluid entrance of the ejector of mixed working fluid spray type refrigerating blood circulation or connects with the cold working medium feeder connection of regenerator in higher level.
Mixed working fluid spray type refrigerating blood circulation the most according to claim 1, it is characterised in that: the cold working medium feeder connection of the sender property outlet of described vaporizer regenerator secondary with most end one-level connects or directly connects with the driving fluid entrance of the ejector of mixed working fluid spray type refrigerating blood circulation.
Mixed working fluid spray type refrigerating blood circulation the most according to claim 1, it is characterised in that: described secondary gas-phase working medium separation condensing unit is provided only with one-level.
Mixed working fluid spray type refrigerating blood circulation the most according to claim 1, it is characterized in that: the mixed working fluid used by mixed working fluid spray type refrigerating blood circulation includes high boiling point working medium and low boiling working fluid, described high boiling point working medium is the mixing of one or more in R134a, R600, R152a, R245fa and R600a, and described low boiling working fluid is the mixing of one or more in R23, R32, R290 and R143a.
5. mixed working fluid spray type refrigerating round-robin method, it is characterized in that the method comprises the following steps: the working medium hot working fluid channel outlet of regenerator from mixed working fluid spray type refrigerating blood circulation flowed out is by least one-level secondary gas-phase working medium separation condensing unit, described secondary gas-phase working medium separation condensing units at different levels all include that the secondary gas-liquid separator being connected with the hot working fluid channel outlet of regenerator in higher level and the gas-phase working medium with secondary gas-liquid separator export the secondary regenerator being connected, in most end one-level, the secondary hot working fluid channel outlet of regenerator is connected with the working medium entrance of the restricting element of the working medium entrance being connected to vaporizer and makes working medium enter evaporator refrigeration；The liquid phase working fluid outlet connection of described secondary gas-liquid separator has secondary restricting element, the sender property outlet of secondary restricting element connects with the cold working medium feeder connection of secondary regenerator, the cold working medium channel outlet of secondary regenerator connects with the driving fluid entrance of the ejector of mixed working fluid spray type refrigerating blood circulation or connects with the cold working medium feeder connection of regenerator in higher level, flows out the direct injected device injection of working medium of the cold working medium channel outlet of secondary regenerator or by injector injection after the cold working medium passage of upper level secondary regenerator.
Mixed working fluid spray type refrigerating round-robin method the most according to claim 5, it is characterized in that: the cold working medium feeder connection of the sender property outlet of described vaporizer regenerator secondary with most end one-level connects or directly connects with the driving fluid entrance of the ejector of mixed working fluid spray type refrigerating blood circulation, flow out the direct injected device injection of working medium of vaporizer or by injector injection after the cold working medium passage of regenerator secondary in most end one-level.
Mixed working fluid spray type refrigerating round-robin method the most according to claim 5, it is characterised in that: described mixed working fluid spray type refrigerating blood circulation is the mixed working fluid single-stage jet refrigeration circulation system being provided only with first injector.
Mixed working fluid spray type refrigerating round-robin method the most according to claim 5, it is characterized in that: the mixed working fluid used by mixed working fluid spray type refrigerating blood circulation includes high boiling point working medium and low boiling working fluid, described high boiling point working medium is the mixing of one or more in R134a, R600, R152a, R245fa and R600a, and described low boiling working fluid is the mixing of one or more in R23, R32, R290 and R143a.
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| CN201410516917.7A CN104315741B (en) | 2014-09-30 | 2014-09-30 | Mixed working fluid spray type refrigerating blood circulation and refrigerating and circulating method |
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| CN201410516917.7A CN104315741B (en) | 2014-09-30 | 2014-09-30 | Mixed working fluid spray type refrigerating blood circulation and refrigerating and circulating method |
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| CN105627622B (en) * | 2016-03-23 | 2018-08-21 | 上海海洋大学 | A kind of tuna clipper waste heat recovery injecting type auto-cascading refrigeration system |
| CN108204690B (en) * | 2017-10-08 | 2023-04-28 | 江涛 | Single-compressor quasi-cascade air source heat pump system |
| CN108800653A (en) * | 2018-06-29 | 2018-11-13 | 河南科技大学 | A kind of mixed working fluid jet refrigeration circulation system of injector throttling synergy |
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| NL6710358A (en) * | 1967-07-27 | 1969-01-29 | ||
| CN100533001C (en) * | 2005-06-30 | 2009-08-26 | 株式会社电装 | Ejector cycle system |
| DE102008011255A1 (en) * | 2008-02-27 | 2009-09-03 | Valeo Klimasysteme Gmbh | Air conditioning system i.e. compression refrigerator, for automobile, has accumulator with super saturation device, and circulation medium present at nozzle outlet in single-phase aggregate condition when medium enters into passage |
| CN102003826B (en) * | 2010-11-27 | 2012-07-25 | 河南科技大学 | Ultra-low temperature circulation refrigeration method employing injectors |
| CN102620461B (en) * | 2012-04-19 | 2014-04-16 | 浙江大学宁波理工学院 | Auto-cascade jet type refrigerator |
| CN103528261B (en) * | 2013-10-15 | 2015-09-09 | 上海交通大学 | A kind of non-energy dynamic formula organic matter injection cooling device |
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