CN209672627U - Three warm cold supply systems of the direct condensation by contact with injector - Google Patents

Three warm cold supply systems of the direct condensation by contact with injector Download PDF

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Publication number
CN209672627U
CN209672627U CN201920139506.9U CN201920139506U CN209672627U CN 209672627 U CN209672627 U CN 209672627U CN 201920139506 U CN201920139506 U CN 201920139506U CN 209672627 U CN209672627 U CN 209672627U
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temperature
low
medium temperature
gas
liquid
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CN201920139506.9U
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Chinese (zh)
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宁静红
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Tianjin University of Commerce
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Tianjin University of Commerce
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Abstract

The utility model discloses a kind of three warm cold supply systems of the direct condensation by contact with injector, including condenser, high-temperature refrigeration compressor, high temperature circulation gas-liquid separator, high temperature circulation expansion valve, medium temperature direct contact heat transfer device, medium temperature refrigeration compressor, medium temperature recycles gas-liquid separator, medium temperature recycles expansion valve, low temperature direct contact heat transfer device, cryogenic refrigeration compressor, low-temperature circulating gas-liquid separator, low-temperature circulating expansion valve, evaporator, low-temperature circulating injector, low-temperature circulating subcooler, medium temperature evaporator, medium temperature recycling ejector, medium temperature recycles subcooler, high-temperature evaporator, high temperature circulation injector;The utility model is three different temperatures with cold space cooling supply, makes full use of the injection ejector action of injector, instead of expansion valve, reduces expansion-loss;Using direct contact heat transfer device, heat transfer temperature difference is reduced, improves heat transfer efficiency, reduces the pressure at expulsion of refrigeration compressor, reduces pressure ratio, power consumption is reduced, improves the performance of refrigeration compressor.

Description

Three warm cold supply systems of the direct condensation by contact with injector
Technical field
The three warm cold supply systems the utility model relates to a kind of direct condensation by contact with injector.
Background technique
In conventional refrigerant system refrigeration compressor be discharged gas, in dividing wall type heat exchanger with cooling medium heat exchange, The thermal resistance of condensing heat-exchange is big, and heat transfer property is low, and heat transfer temperature difference is big, and the pressure ratio of refrigeration compressor is high.
Utility model content
The purpose of this utility model is to provide a kind of direct condensation by contact band for technological deficiency existing in the prior art The warm cold supply system of the three of injector, it is energy saving to improve the efficiency of refrigeration system.
The utility model is that technical solution used by solving its technical problem is:
A kind of three warm cold supply systems of the direct condensation by contact with injector, including condenser, high-temperature refrigeration compressor, high temperature It recycles gas-liquid separator, high temperature circulation expansion valve, medium temperature direct contact heat transfer device, medium temperature refrigeration compressor, medium temperature and recycles gas-liquid It is separator, medium temperature circulation expansion valve, low temperature direct contact heat transfer device, cryogenic refrigeration compressor, low-temperature circulating gas-liquid separator, low Temperature circulation expansion valve, evaporator, low-temperature circulating injector, low-temperature circulating subcooler, medium temperature evaporator, medium temperature recycling ejector, Medium temperature recycles subcooler, high-temperature evaporator, high temperature circulation injector;
The outlet of the high-temperature refrigeration compressor and the entrance of condenser connect, and the outlet of condenser and high temperature circulation are sprayed The main fluid entrance of device connects, and the diffuser outlet of high temperature circulation injector and the fluid-mixing of high temperature circulation gas-liquid separator enter Mouth connection, the gas vent of high temperature circulation gas-liquid separator are connect with the entrance of high-temperature refrigeration compressor, and medium temperature recycles subcooler High temperature circulation gas vent it is in parallel with the gas vent of high-temperature evaporator after driving fluid entrance with high temperature circulation injector Connection, the liquid outlet of high temperature circulation gas-liquid separator are recycled with medium temperature respectively by being divided into two-way after high temperature circulation expansion valve The liquid inlet connection of the high temperature circulation liquid inlet, high-temperature evaporator of subcooler;
The outlet of the medium temperature refrigeration compressor is connect with the gas access of medium temperature direct contact heat transfer device, and medium temperature directly connects The saturated liquid outlet of touching heat exchanger is connect with the saturated liquid entrance of medium temperature circulation subcooler, and medium temperature recycles the supercooling of subcooler Liquid outlet is divided into two-way, connect all the way with the main fluid entrance of medium temperature recycling ejector, another way is directly contacted with medium temperature and changed The subcooled liquid entrance of hot device connects, the diffuser outlet of medium temperature recycling ejector and the mixed flow of medium temperature circulation gas-liquid separator The gas vent of the connection of body entrance, medium temperature circulation gas-liquid separator is connect with the entrance of medium temperature refrigeration compressor, low-temperature circulating mistake Driving fluid after the medium temperature recyclegas outlet of cooler is in parallel with the gas vent of medium temperature evaporator with medium temperature recycling ejector Entrance connection, medium temperature recycle gas-liquid separator liquid outlet by medium temperature circulation expansion valve after respectively with low-temperature circulating subcooler Low-temperature circulating liquid inlet, medium temperature evaporator liquid inlet connection;
The outlet of the cryogenic refrigeration compressor is connect with the gas access of low temperature direct contact heat transfer device, and low temperature directly connects The saturated liquid outlet of touching heat exchanger is connect with the saturated liquid entrance of low-temperature circulating subcooler, the supercooling of low-temperature circulating subcooler Liquid outlet is divided into two-way, connect all the way with the main fluid entrance of low-temperature circulating injector, another way is directly contacted with low temperature and changed The subcooled liquid entrance of hot device connects, the mixed flow of the diffuser outlet and low-temperature circulating gas-liquid separator of low-temperature circulating injector The connection of body entrance, low-temperature circulating gas-liquid separator gas vent are connect with the entrance of cryogenic refrigeration compressor, low-temperature circulating injection The driving fluid entrance of device and the gas vent of evaporator connect, and the liquid outlet of low-temperature circulating gas-liquid separator is followed by low temperature The connection of the cryogenic liquid inlet of ring expansion valve and evaporator.
Compared with prior art, the utility model has the beneficial effects that
1. three warm cold supply systems of the direct condensation by contact of the utility model with injector, make full use of the injection of injector Ejector action reduces expansion-loss instead of expansion valve.
2. three warm cold supply systems of the direct condensation by contact of the utility model with injector, using direct contact heat transfer device, Heat transfer temperature difference is reduced, heat transfer efficiency is improved, reduces the pressure at expulsion of refrigeration compressor, reduces pressure ratio, reduces power consumption, improves system The performance of cold compressor.
It is three different temperatures with cold 3. three warm cold supply systems of the direct condensation by contact of the utility model with injector Space cooling supply, the total performance improvement of refrigeration system is energy saving, protects environment.
Detailed description of the invention
Fig. 1 show the direct condensation by contact of the utility model with the schematic diagram of the three of injector warm cold supply systems.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, three warm cold supply systems of the direct condensation by contact of the utility model with injector, including condenser 1, height Warm refrigeration compressor 2, high temperature circulation gas-liquid separator 3, high temperature circulation expansion valve 4, medium temperature direct contact heat transfer device 5, medium temperature system Cold compressor 6, medium temperature circulation gas-liquid separator 7, medium temperature recycle expansion valve 8, low temperature direct contact heat transfer device 9, cryogenic refrigeration pressure Contracting machine 10, low-temperature circulating gas-liquid separator 11, low-temperature circulating expansion valve 12, evaporator 13, low-temperature circulating injector 14, low temperature follow Ring subcooler 15, medium temperature evaporator 16, medium temperature recycling ejector 17, medium temperature circulation subcooler 18, high-temperature evaporator 19, high temperature follow Ring spray emitter 20;
The outlet of the high-temperature refrigeration compressor 2 is connect with the entrance of condenser 1, the outlet and high temperature circulation of condenser 1 The main fluid entrance of injector 20 connects, diffuser outlet and the high temperature circulation gas-liquid separator 3 of high temperature circulation injector 20 The connection of fluid-mixing entrance, the gas vent of high temperature circulation gas-liquid separator 3 are connect with the entrance of high-temperature refrigeration compressor 2, in The temperature circulation high temperature circulation gas vent of subcooler 18, high-temperature evaporator 19 gas vent it is in parallel after with high temperature circulation injector 20 driving fluid entrance connection, the liquid outlet of high temperature circulation gas-liquid separator 3 is by being divided into two after high temperature circulation expansion valve 4 Road is connect with the liquid inlet of the high temperature circulation liquid inlet of medium temperature circulation subcooler 18, high-temperature evaporator 19 respectively.
The outlet of the medium temperature refrigeration compressor 6 is connect with the gas access of medium temperature direct contact heat transfer device 5, and medium temperature is direct The saturated liquid outlet of contact heat-exchanging device 5 is connect with the saturated liquid entrance of medium temperature circulation subcooler 18, and medium temperature recycles subcooler 18 subcooled liquid outlet is divided into two-way, connect all the way with the main fluid entrance of medium temperature recycling ejector 17, another way and medium temperature The subcooled liquid entrance of direct contact heat transfer device 5 connects, and diffuser outlet and the medium temperature of medium temperature recycling ejector 17 recycle gas-liquid The fluid-mixing entrance of separator 7 connects, and medium temperature recycles the gas vent of gas-liquid separator 7 and entering for medium temperature refrigeration compressor 6 Mouthful connection, the medium temperature recyclegas outlet of low-temperature circulating subcooler 15, medium temperature evaporator 16 gas vent it is in parallel after with medium temperature The driving fluid entrance of recycling ejector 17 connects, and the liquid outlet that medium temperature recycles gas-liquid separator 7 is recycled by medium temperature to be expanded It is connect respectively with the liquid inlet of the low-temperature circulating liquid inlet of low-temperature circulating subcooler 15, medium temperature evaporator 16 after valve 8.
The outlet of the cryogenic refrigeration compressor 10 is connect with the gas access of low temperature direct contact heat transfer device 9, and low temperature is straight The saturated liquid outlet for connecing contact heat-exchanging device 9 is connect with the saturated liquid entrance of low-temperature circulating subcooler 15, low-temperature circulating supercooling Device 15 subcooled liquid outlet is divided into two-way, connect all the way with the main fluid entrance of low-temperature circulating injector 14, another way with it is low The subcooled liquid entrance of warm direct contact heat transfer device 9 connects, diffuser outlet and the low-temperature circulating gas of low-temperature circulating injector 14 The fluid-mixing entrance of liquid/gas separator 11 connects, 11 gas vent of low-temperature circulating gas-liquid separator and cryogenic refrigeration compressor 10 Entrance connection, the driving fluid entrance of low-temperature circulating injector 14 are connect with the gas vent of evaporator 13, low-temperature circulating gas-liquid The liquid outlet of separator 11 is connect by low-temperature circulating expansion valve 12 with the cryogenic liquid inlet of evaporator 13.
The low-temperature circulating injector 14, medium temperature recycling ejector 17, high temperature circulation injector 20 are all made of existing routine Injector, the medium temperature direct contact heat transfer device 5, that low temperature direct contact heat transfer device 9 is all made of existing conventional air-flowing type is straight Contact heat-exchanging device is connect, the low-temperature circulating subcooler 15, medium temperature circulation subcooler 18 is using existing refrigeration system Conventional subcooler.Other components are also conventionally known conventional components, can directly purchase acquisition on the market.
Refrigeration system operation when, high-temperature refrigeration compressor 2 be discharged gas enter condenser 1, in condenser 1 with it is cold But after medium progress heat exchange releasing heat is condensed into liquid, into high temperature circulation injector 20 through nozzle jet expansion pressure drop Low, the gas mixing of injection medium temperature circulation subcooler 18 and high-temperature evaporator 19 is after diffuser diffusion, into high temperature circulation gas Liquid/gas separator 3, the gas isolated enter high-temperature refrigeration compressor 2, and liquid is after 4 reducing pressure by regulating flow of high temperature circulation expansion valve Gas-liquid mixture fluid enters medium temperature circulation subcooler 18, the liquid come out with medium temperature circulation through medium temperature direct contact heat transfer device 5 all the way Body heat exchange, the liquid supercooling for recycling medium temperature.Another way enters high-temperature evaporator 19 and provides cold source with cold space for high temperature.
The gas that medium temperature refrigeration compressor 6 is discharged directly is contacted into medium temperature direct contact heat transfer device 5 with subcooled liquid After heat exchange is condensed into saturated liquid, the liquid after being subcooled into medium temperature circulation subcooler 18 is divided into two-way, enters medium temperature all the way Recycling ejector 17 is through nozzle jet expansion pressure reduction, the gas of injection low-temperature circulating subcooler 15 and medium temperature evaporator 16, Another way enters medium temperature direct contact heat transfer device 5, and the fluid after the diffusion of medium temperature recycling ejector 17 enters medium temperature circulating air Liquid/gas separator 7, the gas isolated enter medium temperature refrigeration compressor 6, and liquid is latter by medium temperature circulation 8 reducing pressure by regulating flow of expansion valve Road enters low-temperature circulating subcooler 15, with the saturated liquid heat exchange through low temperature direct contact heat transfer device 9, makes low-temperature circulating liquid Supercooling, another way enter medium temperature evaporator 16 and provide cold source with cold space for medium temperature.
The gas that cryogenic refrigeration compressor 10 is discharged directly is contacted into low temperature direct contact heat transfer device 9 with subcooled liquid After heat exchange is condensed into saturated liquid, the liquid after being subcooled into low-temperature circulating subcooler 15 is divided into two-way, enters low temperature all the way The gas that recycling ejector 14 is exported through nozzle jet expansion pressure reduction, injection evaporator 13, it is direct that another way enters low temperature Contact heat-exchanging device 9, the fluid after the diffusion of low-temperature circulating injector 14 enter low-temperature circulating gas-liquid separator 11, isolate Gas enters cryogenic refrigeration compressor 10, and liquid enters evaporator 13 after passing through 12 reducing pressure by regulating flow of low-temperature circulating expansion valve, for Cold space provides cold source.
The above is only the preferred embodiment of the utility model, it is noted that for the general of the art For logical technical staff, without departing from the principle of this utility model, several improvements and modifications can also be made, these change It also should be regarded as the protection scope of the utility model into retouching.

Claims (1)

1. a kind of three warm cold supply systems of direct condensation by contact with injector, which is characterized in that including condenser, high-temperature refrigeration pressure Contracting machine, high temperature circulation gas-liquid separator, high temperature circulation expansion valve, medium temperature direct contact heat transfer device, medium temperature refrigeration compressor, medium temperature Recycle gas-liquid separator, medium temperature recycles expansion valve, low temperature direct contact heat transfer device, cryogenic refrigeration compressor, low-temperature circulating gas-liquid Separator, low-temperature circulating expansion valve, evaporator, low-temperature circulating injector, low-temperature circulating subcooler, medium temperature evaporator, medium temperature are followed Ring spray emitter, medium temperature recycle subcooler, high-temperature evaporator, high temperature circulation injector;
The outlet of the high-temperature refrigeration compressor and the entrance of condenser connect, outlet and the high temperature circulation injector of condenser The connection of main fluid entrance, the diffuser outlet of high temperature circulation injector and the fluid-mixing entrance of high temperature circulation gas-liquid separator connect It connects, the gas vent of high temperature circulation gas-liquid separator is connect with the entrance of high-temperature refrigeration compressor, and medium temperature recycles the height of subcooler It is connect after warm recyclegas outlet is in parallel with the gas vent of high-temperature evaporator with the driving fluid entrance of high temperature circulation injector, The liquid outlet of high temperature circulation gas-liquid separator is divided into two-way after passing through high temperature circulation expansion valve, recycles subcooler with medium temperature respectively High temperature circulation liquid inlet, high-temperature evaporator liquid inlet connection;
The outlet of the medium temperature refrigeration compressor is connect with the gas access of medium temperature direct contact heat transfer device, and medium temperature is directly contacted and changed The saturated liquid outlet of hot device is connect with the saturated liquid entrance of medium temperature circulation subcooler, and medium temperature recycles the subcooled liquid of subcooler Outlet is divided into two-way, connect all the way with the main fluid entrance of medium temperature recycling ejector, another way and medium temperature direct contact heat transfer device Subcooled liquid entrance connection, medium temperature recycling ejector diffuser outlet with medium temperature recycle gas-liquid separator fluid-mixing enter The gas vent of mouth connection, medium temperature circulation gas-liquid separator is connect with the entrance of medium temperature refrigeration compressor, low-temperature circulating subcooler The outlet of medium temperature recyclegas it is in parallel with the gas vent of medium temperature evaporator after driving fluid entrance with medium temperature recycling ejector Connection, the liquid outlet that medium temperature recycles gas-liquid separator pass through low with low-temperature circulating subcooler respectively after medium temperature circulation expansion valve The liquid inlet connection of warm circulating liquid entrance, medium temperature evaporator;
The outlet of the cryogenic refrigeration compressor is connect with the gas access of low temperature direct contact heat transfer device, and low temperature is directly contacted and changed The saturated liquid outlet of hot device is connect with the saturated liquid entrance of low-temperature circulating subcooler, the subcooled liquid of low-temperature circulating subcooler Outlet is divided into two-way, connect all the way with the main fluid entrance of low-temperature circulating injector, another way and low temperature direct contact heat transfer device The connection of subcooled liquid entrance, the diffuser outlet of low-temperature circulating injector and the fluid-mixing of low-temperature circulating gas-liquid separator enter Mouth connection, low-temperature circulating gas-liquid separator gas vent are connect with the entrance of cryogenic refrigeration compressor, low-temperature circulating injector The liquid outlet of the connection of the gas vent of driving fluid entrance and evaporator, low-temperature circulating gas-liquid separator is swollen by low-temperature circulating The connection of the cryogenic liquid inlet of swollen valve and evaporator.
CN201920139506.9U 2019-01-28 2019-01-28 Three warm cold supply systems of the direct condensation by contact with injector Expired - Fee Related CN209672627U (en)

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CN201920139506.9U CN209672627U (en) 2019-01-28 2019-01-28 Three warm cold supply systems of the direct condensation by contact with injector

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Application Number Priority Date Filing Date Title
CN201920139506.9U CN209672627U (en) 2019-01-28 2019-01-28 Three warm cold supply systems of the direct condensation by contact with injector

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109682101A (en) * 2019-01-28 2019-04-26 天津商业大学 Three warm cold supply systems of the direct condensation by contact with injector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109682101A (en) * 2019-01-28 2019-04-26 天津商业大学 Three warm cold supply systems of the direct condensation by contact with injector

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