CN104913542B - The injection compression refrigerating system driven using the low grade heat energy of gas-liquid separator - Google Patents
The injection compression refrigerating system driven using the low grade heat energy of gas-liquid separator Download PDFInfo
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- CN104913542B CN104913542B CN201510292599.5A CN201510292599A CN104913542B CN 104913542 B CN104913542 B CN 104913542B CN 201510292599 A CN201510292599 A CN 201510292599A CN 104913542 B CN104913542 B CN 104913542B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
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Abstract
A kind of injection compression refrigerating system of the low grade heat energy driving of use gas-liquid separator, the outlet of evaporator and the driving fluid import of injector are connected, the outlet of compressor and the first import of preheater are connected, the first outlet of preheater and the import of condenser are connected, the outlet of condenser is connected by first throttle device with the import of the first gas-liquid separator, the liquid-phase outlet of first gas-liquid separator is connected by the import of second throttling device and evaporator, the import of the gaseous phase outlet and compressor of first gas-liquid separator is connected, the outlet of injector is connected with the import of the second gas-liquid separator, the import of the gaseous phase outlet and compressor of second gas-liquid separator is connected, its liquid-phase outlet is connected by the second import of pump and preheater, the second outlet of preheater and the import of generator are connected, the outlet of generator and the working fluid import of injector are connected.Efficiency of the present invention is higher, energy consumption is smaller, can using lower temperature thermal source, energy-conservation efficiency it is good.
Description
Technical field
The present invention relates to refrigeration technology field, especially a kind of injection-compression refrigerating system.
Background technology
Continuing to develop for human civilization, is that people create good days, but also constantly consumes mass energy simultaneously,
And to environmental emission a large amount of wastes.As the mankind are continuously increased to naturally asking for, the warning of the Nature is also increasingly serious.Cause
This, people enjoy facility that modern technologies bring with it is comfortable while also require that the pollution of consumption to the energy and environment is reduced to
At least.Energy-conserving and emission-cutting technology has become the focus of attention of the world today.
Refrigeration Technique is the key areas of energy resource consumption, applied to building, chemical industry, the energy, medical treatment etc. various aspects, row
Amplification quantity carbon dioxide.Therefore the Refrigeration Technique of energy-conservation is current study hotspot.Jet refrigeration circulation is used as a kind of thermal drivers
Refrigeration Technique, it is possible to use the low-grade heat discharged in industry life, produces useful cryogenic cold energy, turns waste into wealth, save electricity
Can consumption.Above-mentioned used heat is low due to its temperature, hardly results in utilization, thermal pollution is may also result in if being directly discharged into environment.And
It is good method to be used by this kind of thermal drivers technology of ejector refrigeration.In addition, the low-grade heat such as solar heat, geothermal energy
Source can also carry out similar utilization.Also especially shortcoming, i.e. efficiency are often relatively low and are influenceed by heat source temperature for certain ejector refrigeration
It is larger.Mechanical compression refrigeration system, with of a relatively high efficiency and stability, but needs to consume a large amount of in contrast
Valuable electric energy, it is impossible to the need for meeting energy-saving and emission-reduction.
The content of the invention
In order to overcome, existing injection refrigerating system is less efficient, unstable, can not be freezed using lower temperature and compression
The larger deficiency of system energy consumption, the present invention provides thermal source, the section that a kind of efficiency is higher, energy consumption is smaller, can be using lower temperature
Injection-compression refrigerating system of the low grade heat energy driving of the use gas-liquid separator of energy efficiency well.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of injection-compression refrigerating system of the low grade heat energy driving of use gas-liquid separator, including compressor, preheating
Device, condenser, evaporator and injector, the outlet of the evaporator are connected with the driving fluid import of the injector, described
The outlet of compressor is connected with the first import of the preheater, and the first outlet of the preheater and the import of condenser connect
Connect, the injection-compression refrigerating system also includes first throttle device, second throttling device, the first gas-liquid separator, the second gas
Liquid/gas separator and for the generator for the steam that liquid refrigerant is converted into HTHP using low-grade heat source, the condensation
The outlet of device is connected by first throttle device with the import of first gas-liquid separator, the liquid of first gas-liquid separator
Mutually outlet is connected by the import of second throttling device and evaporator, the gaseous phase outlet and compressor of first gas-liquid separator
Import connection, the outlet of the injector is connected with the import of second gas-liquid separator, second gas-liquid separator
Gaseous phase outlet and the import of compressor connect, the liquid-phase outlet of second gas-liquid separator passes through pump and the preheater
Second import is connected, and the second outlet of the preheater and the import of generator are connected, the outlet of the generator and the spray
The working fluid import connection of emitter.
Further, the first throttle device and second throttling device are choke valve, expansion valve or capillary.
The preheater is shell-and-tube heat exchanger, plate type heat exchanger or double-tube heat exchanger.And fluid in each heat exchanger
Arrangement can be using adverse current, following current etc.；The working medium of use can be halogenated hydrocarbons, alkane, carbon dioxide, ammonia etc.；To generator
The low-grade heat source of heating, can be waste heat, used heat, solar heat, underground heat etc..
The present invention technical concept be：Injection and compression are cycled through gas-liquid separator and are dexterously coupled to one by the present invention
Rise, constitute a kind of injection-compression refrigerating system of the low grade heat energy driving of use vapour liquid separator, preferably play both each
Advantage, play save the energy effect.System is throttled using two-stage, and condensed refrigerant enters after first passing through one-level throttling
Gas-liquid separator, saturation gas phase is directly inhaled into compressor compresses in the separator, and saturation liquid phase now has more lists
Position refrigerating capacity, more refrigerating capacitys are finally provided after next stage throttling reaches evaporating temperature.The refrigerant of the low pressure is sprayed
Emitter suction, supercharging reach and sucked again by compressor after intermediate pressure.So actually by injector plus pump and generator
Thermal drivers are partially completed the driving of low-pressure stage, and compressor then only needs to undertake the driving of hiigh pressure stage, can effectively reduce to electric energy
Consumption, while can also reduce compressor exhaust temperature, extend its life-span.Further, since the refrigerant sucked by injector is only
It is the liquid phase part after one-level throttling, therefore compared to conventional injection-compression refrigerating system, The present invention reduces the work of injector
Make load, reduce the consumption to low grade heat energy, while the size of injector, generator and pump can also be reduced, save
Initial cost.In addition the liquid refrigerant after the heat of the invention for also using compressor air-discharging by pump to being pressurizeed is preheated, and is entered
One step make use of low grade heat energy, embody the theory of energy-conservation.
Beneficial effects of the present invention are mainly manifested in：Than existing injection refrigerating system and compression refrigerating system isolated operation
When, there is higher efficiency, energy expenditure is greatly decreased, and the thermal source of lower temperature can be utilized, improve the energy-conservation efficiency of system.
Brief description of the drawings
Fig. 1 is the schematic diagram of the injection-compression refrigerating system driven using the low grade heat energy of gas-liquid separator.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Reference picture 1, a kind of injection-compression refrigerating system of the low grade heat energy driving of use gas-liquid separator, including pressure
Contracting machine 1, preheater 2, condenser 3, evaporator 7 and injector 10, the outlet of the evaporator 7 and the injection of the injector 10
Fluid inlet is connected, and the outlet of the compressor 1 is connected with the first import of the preheater 2, and the first of the preheater 2 goes out
Mouthful be connected with the import of condenser 3, the injection-compression refrigerating system also including first throttle device 4, second throttling device 6,
First gas-liquid separator 5, the second gas-liquid separator 11 and high for liquid refrigerant to be converted into high temperature using low-grade heat source
The steam of pressure! 9, the outlet of the condenser 3 is entered by first throttle device 4 and first gas-liquid separator 5
Mouth connection, the liquid-phase outlet of first gas-liquid separator 5 is connected by second throttling device 6 with the import of evaporator 7, described
The gaseous phase outlet of first gas-liquid separator 5 is connected with the import of compressor 1, the outlet of the injector 10 and second gas-liquid
The import connection of separator 11, the gaseous phase outlet of second gas-liquid separator 11 is connected with the import of compressor 1, and described second
The liquid-phase outlet of gas-liquid separator 11 is connected by pump 8 with the second import of the preheater 2, and the second of the preheater 2 goes out
Mouth is connected with the import of generator 9, and the outlet of the generator 9 is connected with the working fluid import of the injector 10.
In the present embodiment, first throttle device 4 and second throttling device 6 can be various choke valves, expansion valve, capillary
Pipe；Preheater 2 can be various shell-and-tube heat exchangers, plate type heat exchanger, double-tube heat exchanger etc.；The working medium of use can be all kinds of
Halogenated hydrocarbons, alkane, alkene, carbon dioxide, ammonia etc.；The low-grade heat source heated to generator, can be waste heat, used heat, too
Positive energy heat, underground heat etc..
The course of work of the present embodiment is：The high-temperature high-pressure refrigerant flowed out from compressor 1 enters the first of preheater 2 and entered
Tentatively cooled down after mouthful, be then changed into liquid into the condensation heat release of condenser 3 again, liquid refrigerant is exported from condenser 3 to flow out
It is changed into the vehicle repair major refrigerant with intermediate pressure by first throttle device 4 afterwards, and enters the first gas-liquid separator 5.Tool
The vapor phase refrigerant for having intermediate pressure exits into compressor 1 from the gaseous phase outlet of the first gas-liquid separator 5, with intermediate pressure
Liquid phase refrigerant reaches steaming from the liquid-phase outlet outflow of the first gas-liquid separator 5 after second throttling device 6 further decompression
Pressure is sent out, and enters the evaporation endothermic of evaporator 7, the driving fluid entrance for entering injector 10 is then exported from evaporator 7.From spray
The refrigerant of the outlet outflow of emitter 10 enters the second gas-liquid separator 11, wherein vapor phase refrigerant from the second gas-liquid separator 11
Gaseous phase outlet outflow sucked by compressor, and liquid phase refrigerant passes through pump from the outflow of the liquid-phase outlet of the second gas-liquid separator 11
Preheated again by preheater 2 after 8 pressurizations, then steam is changed into from the heating of generator 9, entered subsequently into the working fluid of injector 10
Mouth completes circulation.
Claims (3)
1. a kind of injection-compression refrigerating system of the low grade heat energy driving of use gas-liquid separator, including compressor, preheating
Device, condenser, evaporator and injector, the outlet of the evaporator are connected with the driving fluid import of the injector, described
The outlet of compressor is connected with the first import of the preheater, and the first outlet of the preheater and the import of condenser connect
Connect, it is characterised in that：Injection-the compression refrigerating system also includes first throttle device, second throttling device, the first gas-liquid point
From device, the second gas-liquid separator and for the generation for the steam that liquid refrigerant is converted into HTHP using low-grade heat source
Device, the outlet of the condenser is connected by first throttle device with the import of first gas-liquid separator, first gas
The liquid-phase outlet of liquid/gas separator is connected by the import of second throttling device and evaporator, the gas phase of first gas-liquid separator
Outlet is connected with the import of compressor, and the outlet of the injector is connected with the import of second gas-liquid separator, and described the
The import of the gaseous phase outlets of two gas-liquid separators and compressor is connected, the liquid-phase outlet of second gas-liquid separator by pump with
The second import connection of the preheater, the second outlet of the preheater and the import of generator are connected, the generator
Outlet is connected with the working fluid import of the injector.
2. injection-the compression refrigerating system driven as claimed in claim 1 using the low grade heat energy of gas-liquid separator, it is special
Levy and be：The first throttle device and second throttling device are choke valve, expansion valve or capillary.
3. injection-the compression refrigerating system driven as claimed in claim 1 or 2 using the low grade heat energy of gas-liquid separator,
It is characterized in that：The preheater is shell-and-tube heat exchanger, plate type heat exchanger or double-tube heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510292599.5A CN104913542B (en) | 2015-05-29 | 2015-05-29 | The injection compression refrigerating system driven using the low grade heat energy of gas-liquid separator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510292599.5A CN104913542B (en) | 2015-05-29 | 2015-05-29 | The injection compression refrigerating system driven using the low grade heat energy of gas-liquid separator |
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| Publication Number | Publication Date |
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| CN104913542A CN104913542A (en) | 2015-09-16 |
| CN104913542B true CN104913542B (en) | 2017-10-13 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981223A (en) * | 2018-09-17 | 2018-12-11 | 天津商业大学 | Injection supercooling refrigeration system |
| CN113483499B (en) * | 2021-05-31 | 2023-04-14 | 浙大宁波理工学院 | Low-power-consumption jet type refrigerating system provided with heat-driven pump |
| CN113654262B (en) * | 2021-08-31 | 2022-06-21 | 嵊州市浙江工业大学创新研究院 | Low-grade heat-driven refrigerating system for large-scale freezer |
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| EP1498671A1 (en) * | 2003-07-18 | 2005-01-19 | TGK Co., Ltd. | Refrigeration cycle |
| CN2826302Y (en) * | 2005-09-26 | 2006-10-11 | 浙江春晖智能控制股份有限公司 | Refrigerating system of automobile air conditioner |
| CN102575882A (en) * | 2009-10-20 | 2012-07-11 | 三菱电机株式会社 | Heat pump device |
| CN104132477A (en) * | 2014-07-18 | 2014-11-05 | 中原工学院 | Preheating type solar ejection-compression combined refrigerating system |
| CN104236159A (en) * | 2014-09-30 | 2014-12-24 | 河南科技大学 | Refrigerating system driven by multiple energy resources and refrigerating method |
| CN204329419U (en) * | 2014-12-18 | 2015-05-13 | 天津商业大学 | A kind of CO 2double throttle injection refrigerating system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4522641B2 (en) * | 2002-05-13 | 2010-08-11 | 株式会社デンソー | Vapor compression refrigerator |
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2015
- 2015-05-29 CN CN201510292599.5A patent/CN104913542B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1498671A1 (en) * | 2003-07-18 | 2005-01-19 | TGK Co., Ltd. | Refrigeration cycle |
| CN2826302Y (en) * | 2005-09-26 | 2006-10-11 | 浙江春晖智能控制股份有限公司 | Refrigerating system of automobile air conditioner |
| CN102575882A (en) * | 2009-10-20 | 2012-07-11 | 三菱电机株式会社 | Heat pump device |
| CN104132477A (en) * | 2014-07-18 | 2014-11-05 | 中原工学院 | Preheating type solar ejection-compression combined refrigerating system |
| CN104236159A (en) * | 2014-09-30 | 2014-12-24 | 河南科技大学 | Refrigerating system driven by multiple energy resources and refrigerating method |
| CN204329419U (en) * | 2014-12-18 | 2015-05-13 | 天津商业大学 | A kind of CO 2double throttle injection refrigerating system |
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Application publication date: 20150916 Assignee: Ningbo Xueluden Intelligent Technology Co.,Ltd. Assignor: JIANG University OF TECHNOLOGY Contract record no.: X2023980035742 Denomination of invention: Jet compression refrigeration system driven by low-grade thermal energy using gas-liquid separator Granted publication date: 20171013 License type: Common License Record date: 20230520 |
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Application publication date: 20150916 Assignee: DEQING COUNTY XINCHENG LIGHTING LTD. Assignor: JIANG University OF TECHNOLOGY Contract record no.: X2023980040525 Denomination of invention: Jet compression refrigeration system driven by low-grade thermal energy using gas-liquid separator Granted publication date: 20171013 License type: Common License Record date: 20230825 Application publication date: 20150916 Assignee: Zhejiang Ruiyi Electric Appliance Manufacturing Co.,Ltd. Assignor: JIANG University OF TECHNOLOGY Contract record no.: X2023980040522 Denomination of invention: Jet compression refrigeration system driven by low-grade thermal energy using gas-liquid separator Granted publication date: 20171013 License type: Common License Record date: 20230828 |
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