CN209672630U - Direct condensation by contact cryogenic refrigerating system with injection injection - Google Patents
Direct condensation by contact cryogenic refrigerating system with injection injection Download PDFInfo
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- CN209672630U CN209672630U CN201920139525.1U CN201920139525U CN209672630U CN 209672630 U CN209672630 U CN 209672630U CN 201920139525 U CN201920139525 U CN 201920139525U CN 209672630 U CN209672630 U CN 209672630U
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Abstract
The utility model discloses a kind of direct condensation by contact cryogenic refrigerating system of band injection injection, 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 recycling ejector, medium temperature recycles subcooler, high temperature circulation injector；The utility model 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
Technical field
The utility model relates to a kind of direct condensation by contact cryogenic refrigerating systems of band injection injection.
Background technique
The thermal resistance of traditional dividing wall type condensing heat-exchange is big, and heat transfer property is low, and heat transfer temperature difference is big, the pressure ratio of refrigeration compressor
It is high.Therefore, the pressure at expulsion for reducing refrigeration compressor makes the reduction of its pressure ratio, and power consumption is reduced, and improves the property of refrigeration compressor
Can, the efficiency of system is improved, being must technical problems to be solved.
Utility model content
The purpose of this utility model is to provide a kind of the straight of band injection injection for technological deficiency existing in the prior art
Condensation by contact cryogenic refrigerating system is connect, 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 direct condensation by contact cryogenic refrigerating system of band injection injection, including condenser, high-temperature refrigeration compressor, height
Temperature circulation gas-liquid separator, high temperature circulation expansion valve, medium temperature direct contact heat transfer device, medium temperature refrigeration compressor, medium temperature circulating air
Liquid/gas separator, medium temperature circulation 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 recycling ejector, medium temperature are circulated throughout
Cooler, 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, high temperature circulation injector
The high temperature circulation gas vent of driving fluid entrance and medium temperature circulation subcooler connect, the liquid of high temperature circulation gas-liquid separator
Outlet is connect by high temperature circulation expansion valve with the high temperature circulation liquid inlet of medium temperature circulation 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, medium temperature circulation spray
The driving fluid entrance of emitter and the medium temperature recyclegas of low-temperature circulating subcooler are exported and are connected, and medium temperature recycles gas-liquid separator
Liquid outlet recycles expansion valve by medium temperature and connect with the medium temperature circulating liquid entrance of low-temperature circulating subcooler；
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, the gas vent of low-temperature circulating gas-liquid separator are connect with the entrance of cryogenic refrigeration compressor, low-temperature circulating spray
The driving fluid entrance of emitter and the gas vent of evaporator connect, and the liquid outlet of low-temperature circulating gas-liquid separator passes through low temperature
The cryogenic liquid inlet for recycling expansion valve and evaporator connects.
Compared with prior art, the utility model has the beneficial effects that
1. the direct condensation by contact cryogenic refrigerating system with injection injection of the utility model, makes full use of the spray of injector
Ejector action is penetrated, instead of expansion valve, reduces expansion-loss.
2. the direct condensation by contact cryogenic refrigerating system with injection injection of the utility model, utilizes direct contact heat transfer
Device reduces heat transfer temperature difference, improves heat transfer efficiency, reduces the pressure at expulsion of refrigeration compressor, reduces pressure ratio, reduces power consumption, mentions
The performance of high refrigeration compressor.
3. the direct condensation by contact cryogenic refrigerating system with injection injection of the utility model, the overall performance of refrigeration system
It improves, it is energy saving, protect environment.
Detailed description of the invention
Fig. 1 show the schematic diagram of the direct condensation by contact cryogenic refrigerating system with injection injection of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the direct condensation by contact cryogenic refrigerating system of the utility model band injection injection, including condenser 1,
High-temperature 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
Refrigeration 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
Compressor 10, low-temperature circulating gas-liquid separator 11, low-temperature circulating expansion valve 12, evaporator 13, low-temperature circulating injector 14, low temperature
It recycles subcooler 15, medium temperature recycling ejector 16, medium temperature and recycles subcooler 17, high temperature circulation injector 18.
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 18 connects, diffuser outlet and the high temperature circulation gas-liquid separator 3 of high temperature circulation injector 18
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, high
The driving fluid entrance of warm recycling ejector 18 is connect with the high temperature circulation gas vent of medium temperature circulation subcooler 17, high temperature circulation
High temperature circulation liquid inlet of the liquid outlet of gas-liquid separator 3 by high temperature circulation expansion valve 4, with medium temperature circulation subcooler 17
Connection.
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 17, and medium temperature recycles subcooler
17 subcooled liquid outlet is divided into two-way, connect all the way with the main fluid entrance of medium temperature recycling ejector 16, 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 16 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
Mouth connection, the driving fluid entrance of medium temperature recycling ejector 16 and the medium temperature recyclegas of low-temperature circulating subcooler 15 export and connect
It connects, the liquid outlet of medium temperature circulation gas-liquid separator 7 recycles expansion valve 8 by medium temperature and the medium temperature of low-temperature circulating subcooler 15 is followed
The connection of ring liquid inlet.
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, the gas vent and cryogenic refrigeration compressor 10 of low-temperature circulating gas-liquid separator 11
Entrance connection, the driving fluid entrance of low-temperature circulating injector 14 connect with the gas vent of evaporator 13, low-temperature circulating gas
The liquid outlet of liquid/gas 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 16, high temperature circulation injector 18 are all made of existing routine
Injector, the medium temperature direct contact heat transfer device 5, it is straight that low temperature direct contact heat transfer device 9 is all made of existing conventional air-flowing type
Contact heat-exchanging device is connect, other components are also existing conventional components, can directly be obtained on the market.
Refrigeration system operation when, high-temperature refrigeration compressor 2 be discharged gas enter condenser 1, in condenser 1 with
After cooling medium progress heat exchange releasing heat is condensed into liquid, into high temperature circulation injector 18 through nozzle jet expansion pressure
It reduces, injection medium temperature recycles the high temperature circulation gas mixing in subcooler 17 after diffuser diffusion, into high temperature circulation gas-liquid
Separator 3, the gas isolated enter high-temperature refrigeration compressor 2, gas of the liquid after 4 reducing pressure by regulating flow of high temperature circulation expansion valve
The liquid heat friendship that liquid fluid-mixing enters medium temperature circulation subcooler 17 and medium temperature circulation comes out through medium temperature direct contact heat transfer device 5
It changes, the liquid supercooling for recycling medium 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 17 is divided into two-way, enters medium temperature all the way
Recycling ejector 16 is through nozzle jet expansion pressure reduction, the medium temperature recyclegas of injection low-temperature circulating subcooler 15, another way
Into medium temperature direct contact heat transfer device 5, the fluid after the diffusion of medium temperature recycling ejector 16 enters medium temperature circulation gas-liquid separation
Device 7, the gas isolated enter medium temperature refrigeration compressor 6, and liquid enters low temperature after recycling 8 reducing pressure by regulating flow of expansion valve by medium temperature
Subcooler 15 is recycled, with the saturated liquid heat exchange through low temperature direct contact heat transfer device 9, low-temperature circulating liquid is subcooled.
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 direct condensation by contact cryogenic refrigerating system of band injection injection, 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 recycling ejector, in
Temperature circulation subcooler, 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 high temperature circulation injector draws
Jet body entrance is connect with the high temperature circulation gas vent of medium temperature circulation subcooler, the liquid outlet of high temperature circulation gas-liquid separator
By high temperature circulation expansion valve, it is connect with the high temperature circulation liquid inlet of medium temperature circulation 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 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, medium temperature recycling ejector
Driving fluid entrance and low-temperature circulating subcooler medium temperature recyclegas export connect, medium temperature recycle gas-liquid separator liquid
Outlet recycles expansion valve by medium temperature and connect with the medium temperature circulating liquid entrance of low-temperature circulating subcooler；
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, the gas vent of low-temperature circulating gas-liquid separator are connect with the entrance of cryogenic refrigeration compressor, low-temperature circulating injector
Driving fluid entrance and the gas vent of evaporator connect, the liquid outlet of low-temperature circulating gas-liquid separator passes through low-temperature circulating
The connection of the cryogenic liquid inlet of expansion valve and evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920139525.1U CN209672630U (en) | 2019-01-28 | 2019-01-28 | Direct condensation by contact cryogenic refrigerating system with injection injection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920139525.1U CN209672630U (en) | 2019-01-28 | 2019-01-28 | Direct condensation by contact cryogenic refrigerating system with injection injection |
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| Publication Number | Publication Date |
|---|---|
| CN209672630U true CN209672630U (en) | 2019-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920139525.1U Expired - Fee Related CN209672630U (en) | 2019-01-28 | 2019-01-28 | Direct condensation by contact cryogenic refrigerating system with injection injection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682102A (en) * | 2019-01-28 | 2019-04-26 | 天津商业大学 | Direct condensation by contact cryogenic refrigerating system with injection injection |
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2019
- 2019-01-28 CN CN201920139525.1U patent/CN209672630U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682102A (en) * | 2019-01-28 | 2019-04-26 | 天津商业大学 | Direct condensation by contact cryogenic refrigerating system with injection injection |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191122 Termination date: 20220128 |