CN108344195A - Recycle the one machine dual temperature refrigeration system of two level injection of expansion work - Google Patents
Recycle the one machine dual temperature refrigeration system of two level injection of expansion work Download PDFInfo
- Publication number
- CN108344195A CN108344195A CN201810357445.3A CN201810357445A CN108344195A CN 108344195 A CN108344195 A CN 108344195A CN 201810357445 A CN201810357445 A CN 201810357445A CN 108344195 A CN108344195 A CN 108344195A
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- Prior art keywords
- outlet
- connect
- entrance
- evaporator
- fluid
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
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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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention discloses a kind of one machine dual temperature refrigeration system of two level injection of recycling expansion work, the outlet of its refrigeration compressor is connect with condenser inlet, and condensator outlet is connect with two-stage injection injector main fluid entrance all the way, another way and regenerator high pressure fluid entrances connect；Regenerator high pressure fluid output is connect with the first expander inlet, first expander outlet is connect with the first evaporator inlet, the outlet of two-stage injection injector diffuser is connect with gas-liquid separator fluid-mixing entrance, gas-liquid separator gas vent is connect with regenerator cry-fluid inlet, regenerator cryogenic fluid outlet is connect with refrigeration compressor entrance, gas-liquid separator liquid outlet is connect with the second expander inlet, and the second expander outlet is connect with the second evaporator inlet；The outlet of first evaporator and the second evaporator is connect with the first, second driving fluid entrance of two-stage injection injector respectively.The present invention can improve performance of refrigerant systems.
Description
Technical field
The present invention relates to Cold Chain Logistics freezing and refrigeration technical fields, and in particular to a kind of two level injection one of recycling expansion work
Machine dual temperature refrigeration system.
Background technology
In Cold Chain Logistics freezing and refrigeration field, refrigerating plant stores different articles, needs cold different temperature, two
Different cold of evaporating temperature, may be used two library refrigeration system of a machine, typically thermal expansion valve regulation difference be used to evaporate
The feed flow of temperature evaporator, the return-air to ensure each evaporator is unobstructed, and high pressure evaporator does not occur and collaborates to low pressure evaporator,
Need to evaporating pressure regulating valve be set in the evaporator outlet of higher evaporating temperature, the evaporator outlet of relatively low evaporating temperature is set
Check valve is set, system is relative complex, and cryogenic vaporizer pressure is low, and the pressure ratio of compressor is big, and wasted work is more, meanwhile, thermal expansion
Valve reducing pressure by regulating flow causes high-pressure energy to lose, and performance of refrigerant systems declines.
Invention content
The purpose of the present invention is being directed to technological deficiency existing in the prior art, a kind of Cold Chain Logistics freezing and refrigeration neck is provided
The one machine dual temperature refrigeration system of two level injection of the recycling expansion work in domain.
The technical solution adopted by the present invention to solve the technical problems is：
Recycle the one machine dual temperature refrigeration system of two level injection of expansion work, including condenser, refrigeration compressor, regenerator, the
One expanding machine, gas-liquid separator, the second expanding machine, the second evaporator, two-stage injection injector, the first evaporator；The refrigeration
The entrance of the outlet of compressor and condenser connects, and the outlet of condenser is divided into two-way, all the way with the master of two-stage injection injector
Fluid inlet connects, and the high pressure fluid entrances of another way and regenerator connect；The high pressure fluid output of regenerator and the first expansion
The entrance of machine connects, and the outlet of the first expanding machine is connect with the entrance of the first evaporator, and outlet and the two level of the first evaporator are sprayed
Penetrate the first driving fluid entrance connection of injector, the mixed flow of the diffuser outlet and gas-liquid separator of two-stage injection injector
Body entrance connects, and the gas vent of gas-liquid separator and the cry-fluid inlet of regenerator connect, and the cryogen of regenerator goes out
Mouth is connect with the entrance of refrigeration compressor, and the liquid outlet of gas-liquid separator is connect with the entrance of the second expanding machine, the second expansion
The outlet of machine is connect with the entrance of the second evaporator, the outlet of the second evaporator and the second driving fluid of two-stage injection injector
Entrance connects.
The two-stage injection injector includes axially being sequentially connected in series the first mixing chamber, the second mixing chamber and diffusion to connect
Section；Be equipped with respectively in axial direction in first mixing chamber and the second mixing chamber nozzle, it is radial be respectively equipped with the first driving fluid entrance with
And the second driving fluid entrance；First mixing chamber is axially arranged with main fluid entrance.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the one machine dual temperature refrigeration system of two level injection of the recycling expansion work of the present invention is made using the injection of second injector
With two kinds of different evaporating temperatures of realization, are cold cooling of different storage temperature demands, improve conventional refrigerant system utilization
Evaporating pressure regulating valve reduces the pressure of the evaporator outlet return-air of relatively high evaporating temperature, reduces the suction of refrigeration compressor
Enter pressure.And diffuser diffusion is utilized, the pressure of the evaporator outlet return-air of relatively low evaporating temperature is improved, refrigeration pressure is improved
The suction pressure of contracting machine reduces pressure ratio, reduces power consumption, improves the performance of refrigeration system.
2. the one machine dual temperature refrigeration system of two level injection of the recycling expansion work of the present invention recycles high pressure gas using expanding machine
The expansion work of expansion is reduced expansion energy loss, is subcooled the highly pressurised liquid before expanding machine using regenerator, is reduced evaporator and is entered
Mouth enthalpy, improves refrigerating capacity, system structure is simple, economizes on resources.
Description of the drawings
Fig. 1 show the one machine dual temperature refrigeration system schematic diagram of two level injection of the recycling expansion work of the present invention；
Specific implementation mode
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
It is shown in Figure 1, a kind of one machine dual temperature refrigeration system of two level injection of recycling expansion work, including：
Condenser 1, refrigeration compressor 2, regenerator 3, the first expanding machine 4, gas-liquid separator 5, the second expanding machine 6, second
Evaporator 7, two-stage injection injector 8, the first evaporator 9；；
The outlet of the refrigeration compressor 2 is connect with the entrance of condenser 1, and the outlet of condenser 1 is divided into two-way, all the way with
The main fluid entrance of two-stage injection injector 8 connects, and another way is connect with the high pressure fluid entrances of regenerator 3, the height of regenerator 3
Pressure fluid outlet is connect with the entrance of the first expanding machine 4, and the outlet of the first expanding machine 4 is connect with the entrance of the first evaporator 9, the
The outlet of one evaporator 9 is connect with the first driving fluid entrance of two-stage injection injector 8, the diffusion of two-stage injection injector 8
Section outlet is connect with the fluid-mixing entrance of gas-liquid separator 5, the gas vent of gas-liquid separator 5 and the low temperature stream of regenerator 3
Body entrance connects, and the cryogenic fluid outlet of regenerator 3 is connect with the entrance of refrigeration compressor 2, the liquid outlet of gas-liquid separator 5
It is connect with the entrance of the second expanding machine 6, the outlet of the second expanding machine 6 is connect with the entrance of the second evaporator 7, the second evaporator 7
Outlet connect with the second driving fluid entrance of two-stage injection injector 8.
The two-stage injection injector 8 includes axially being sequentially connected in series the first mixing chamber, the second mixing chamber and diffusion to connect
Section is equipped with nozzle in the first mixing chamber and the second mixing chamber respectively in axial direction, be radially respectively equipped with the first driving fluid entrance and
Second driving fluid entrance, the first mixing chamber are axially arranged with main fluid entrance.
Specifically, the diffusion ratio of the nozzle orifice size of the two-stage injection injector 8, diffuser, according to refrigeration system
Operating mode and load setting.
When refrigeration system is run, the high temperature and high pressure gas that refrigeration compressor 2 is discharged enters condenser 1, and it is solidifying to release heat
The high temperature high pressure liquid of knot is divided into two-way, and all the way after regenerator is subcooled, into the first expanding machine 4, another way enters through main fluid
Mouthful enter two-stage injection injector 8, through the first mixing chamber inner nozzle expand be depressured, injection through the first expanding machine 4 expansion decompression after,
It is to be risen after first cold cooling absorbs heat at gas, through the second mixing chamber after being mixed in the first mixing chamber into the first evaporator 9
Inner nozzle expansion decompression, the exit gas of the second evaporator of injection 7, through two-stage injection injector after being mixed in the second mixing chamber
8 diffuser, diffusion fluid enter gas-liquid separator 5, and the gas of separation enters refrigeration compressor 2 after the heat absorption of regenerator 3, point
From liquid through the second expanding machine 6 enter the second evaporator 7, be second cold cooling.
The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (2)
1. recycling the one machine dual temperature refrigeration system of two level injection of expansion work, characterized in that including condenser, refrigeration compressor, return
Hot device, the first expanding machine, gas-liquid separator, the second expanding machine, the second evaporator, two-stage injection injector, the first evaporator；Institute
The entrance of the outlet and condenser of stating refrigeration compressor connects, and the outlet of condenser is divided into two-way, all the way with two-stage injection injection
The main fluid entrance of device connects, and the high pressure fluid entrances of another way and regenerator connect；The high pressure fluid output of regenerator and
The entrance of one expanding machine connects, and the outlet of the first expanding machine is connect with the entrance of the first evaporator, the outlet of the first evaporator and
First driving fluid entrance of two-stage injection injector connects, diffuser outlet and the gas-liquid separator of two-stage injection injector
Fluid-mixing entrance connects, and the gas vent of gas-liquid separator and the cry-fluid inlet of regenerator connect, the low temperature of regenerator
The entrance of fluid outlet and refrigeration compressor connects, and the liquid outlet of gas-liquid separator is connect with the entrance of the second expanding machine, the
The outlet of two expanding machines is connect with the entrance of the second evaporator, and the outlet of the second evaporator is drawn with the second of two-stage injection injector
Jet body entrance connects.
2. recycling the one machine dual temperature refrigeration system of two level injection of expansion work according to claim 1, characterized in that the two level
Injection injector includes axially being sequentially connected in series the first mixing chamber, the second mixing chamber and diffuser to connect；First mixing chamber and
In two mixing chambers respectively in axial direction be equipped with nozzle, radial direction is respectively equipped with the first driving fluid entrance and the second driving fluid enters
Mouthful；First mixing chamber is axially arranged with main fluid entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810357445.3A CN108344195A (en) | 2018-04-20 | 2018-04-20 | Recycle the one machine dual temperature refrigeration system of two level injection of expansion work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810357445.3A CN108344195A (en) | 2018-04-20 | 2018-04-20 | Recycle the one machine dual temperature refrigeration system of two level injection of expansion work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108344195A true CN108344195A (en) | 2018-07-31 |
Family
ID=62955757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810357445.3A Pending CN108344195A (en) | 2018-04-20 | 2018-04-20 | Recycle the one machine dual temperature refrigeration system of two level injection of expansion work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108344195A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242623A (en) * | 2019-07-09 | 2019-09-17 | 西安交通大学 | It is a kind of to utilize high-pressure natural gas hydraulic recovery system and its operation method |
| CN111413061A (en) * | 2020-04-14 | 2020-07-14 | 中国商用飞机有限责任公司 | Low-temperature wind tunnel system |
| WO2020211184A1 (en) * | 2019-04-18 | 2020-10-22 | 青岛海尔空调电子有限公司 | Refrigeration system |
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| CN102563945A (en) * | 2012-02-16 | 2012-07-11 | 西安交通大学 | Refrigeration circulating system with double-stage-injection ejector |
| CN102620461A (en) * | 2012-04-19 | 2012-08-01 | 浙江大学宁波理工学院 | Auto-cascade jet type refrigerator |
| CN102692092A (en) * | 2011-12-25 | 2012-09-26 | 河南科技大学 | Jet type refrigeration system with expander |
| CN102778076A (en) * | 2012-07-12 | 2012-11-14 | 西安交通大学 | Novel compression/injection mixed refrigerating cyclic system used for double-temperature refrigerator |
| CN103759449A (en) * | 2014-01-09 | 2014-04-30 | 西安交通大学 | Two-stage steam compression circulating system with two ejectors for efficiency enhancement |
| CN103808101A (en) * | 2014-01-27 | 2014-05-21 | 合肥美菱股份有限公司 | Dual-jet and dual-backheating combined synergistic refrigerating cycle system for dual-temperature refrigerator |
| CN106403355A (en) * | 2016-11-22 | 2017-02-15 | 中国矿业大学 | Ejection refrigeration system with double evaporators |
| KR20180009142A (en) * | 2016-07-18 | 2018-01-26 | 한국에너지기술연구원 | Steam Turbine Power Generation system |
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2018
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| CN102692092A (en) * | 2011-12-25 | 2012-09-26 | 河南科技大学 | Jet type refrigeration system with expander |
| CN102563945A (en) * | 2012-02-16 | 2012-07-11 | 西安交通大学 | Refrigeration circulating system with double-stage-injection ejector |
| CN102620461A (en) * | 2012-04-19 | 2012-08-01 | 浙江大学宁波理工学院 | Auto-cascade jet type refrigerator |
| CN102778076A (en) * | 2012-07-12 | 2012-11-14 | 西安交通大学 | Novel compression/injection mixed refrigerating cyclic system used for double-temperature refrigerator |
| CN103759449A (en) * | 2014-01-09 | 2014-04-30 | 西安交通大学 | Two-stage steam compression circulating system with two ejectors for efficiency enhancement |
| CN103808101A (en) * | 2014-01-27 | 2014-05-21 | 合肥美菱股份有限公司 | Dual-jet and dual-backheating combined synergistic refrigerating cycle system for dual-temperature refrigerator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020211184A1 (en) * | 2019-04-18 | 2020-10-22 | 青岛海尔空调电子有限公司 | Refrigeration system |
| US11578896B2 (en) | 2019-04-18 | 2023-02-14 | Qingdao Haier Air-Conditioning Electronic Co., Ltd | Refrigeration system |
| CN110242623A (en) * | 2019-07-09 | 2019-09-17 | 西安交通大学 | It is a kind of to utilize high-pressure natural gas hydraulic recovery system and its operation method |
| CN110242623B (en) * | 2019-07-09 | 2023-08-01 | 西安交通大学 | System for recycling residual pressure of high-pressure natural gas and operation method thereof |
| CN111413061A (en) * | 2020-04-14 | 2020-07-14 | 中国商用飞机有限责任公司 | Low-temperature wind tunnel system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180731 |
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| RJ01 | Rejection of invention patent application after publication |