CN113154557A - Quasi-two-stage compression four-pipe air conditioning system - Google Patents
Quasi-two-stage compression four-pipe air conditioning system Download PDFInfo
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- CN113154557A CN113154557A CN202110293660.3A CN202110293660A CN113154557A CN 113154557 A CN113154557 A CN 113154557A CN 202110293660 A CN202110293660 A CN 202110293660A CN 113154557 A CN113154557 A CN 113154557A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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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
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
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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
- F25B43/006—Accumulators
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- Sustainable Development (AREA)
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a quasi-two-stage compression four-pipe air conditioning system, which comprises a compressor, a four-way reversing valve, a condenser, a liquid storage device, a first valve, a water cooling device, a gas-liquid separator, a second valve, a third valve, an evaporator, a fourth valve, a fin heat exchanger and a fifth valve, wherein an exhaust port of the compressor is connected with a port D of the four-way reversing valve, a port C of the four-way reversing valve is connected with an inlet of the condenser, an outlet of the condenser is connected with an inlet of the liquid storage device, and an outlet of the liquid storage device is connected with an inlet of the first valve. Can effectively reduce energy consumption and is beneficial to popularization and application.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of energy-saving air conditioning equipment, in particular to the technical field of a quasi-two-stage compression four-pipe air conditioning system.
[ background of the invention ]
In recent years, with the development of economy, people have higher and higher requirements on the quality of indoor life, and the research on meeting sustainable development technology is particularly urgent. The heat pump technology is an efficient energy-saving mode, but the traditional air source heat pump has poor heating performance and low-temperature reliability in a low-temperature environment, so that more researches are made on quasi-two-stage compression cycle of a compressor. As a technical scheme which is feasible in technology and easy to realize, the method has obvious effects on insufficient heating (refrigerating) quantity and reduced compressor efficiency when the compressor with the improved fixed volume ratio deviates from the design working condition.
The double-pipe air conditioner can not simultaneously meet the operation of a room with heat supply and a refrigerating room system in a building in a transition season, and the cold and heat balance condition is easy to occur in a three-pipe system. The four-pipe air conditioning system has the advantages of strong load adaptability, flexible adjustment, capability of meeting the simultaneous use of rooms with different requirements on temperature and humidity, and capability of freely selecting a heat supply or cold supply operation mode at any time. All energy consumption in the system can be provided according to the end requirement. The air conditioner is particularly suitable for rooms such as operating rooms in hospitals, which have high sanitary requirements, strict standards for temperature, humidity and air quality and requirements for cold and heat in the whole process.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a quasi-two-stage compression four-pipe air conditioning system, so that an energy-saving system can meet the requirement that rooms with different requirements on temperature and humidity are used simultaneously, the rooms are independently refrigerated or refrigerated all the year round, cold and hot water is provided simultaneously, the problem that the heating (refrigerating) amount of a compressor is insufficient when the compressor deviates from the designed working condition is solved, the efficiency of the compressor is improved, the adaptability to load is strong, the adjustment is flexible, the energy loss can be effectively reduced, and the popularization and the application are facilitated.
In order to achieve the purpose, the invention provides a quasi-two-stage compression four-pipe air conditioning system which comprises a compressor, a four-way reversing valve, a condenser, a liquid storage device, a first valve, a water cooling device, a gas-liquid separator, a second valve, a third valve, an evaporator, a fourth valve, a fin heat exchanger and a fifth valve, wherein an exhaust port of the compressor is connected with a port D of the four-way reversing valve, a port C of the four-way reversing valve is connected with an inlet of the condenser, an outlet of the condenser is connected with an inlet of the liquid storage device, an outlet of the liquid storage device is connected with an inlet of the first valve, an outlet of the first valve is respectively connected with inlets of the second valve and the water cooling device, an outlet of the water cooling device is connected with an auxiliary air inlet of the compressor, an outlet of the second valve is respectively connected with inlets of the third valve and the fourth valve, an outlet of the third valve is connected with an inlet of the evaporator, the outlet of the evaporator is connected with the inlet of the gas-liquid separator, the outlet of the gas-liquid separator is connected with the air inlet of the compressor, the outlet of the fourth valve is respectively connected with the inlets of the fin heat exchanger and the fifth valve, the outlet of the fifth valve is connected with the inlet of the liquid reservoir, the outlet of the fin heat exchanger is connected with the port E of the four-way reversing valve, and the port S of the four-way reversing valve is connected with the inlet of the gas-liquid separator.
Preferably, a heat recovery device is arranged on a pipeline between the gas-liquid separator and the compressor.
Preferably, the heat recovery device is a positive displacement heat recovery device.
Preferably, the condenser, the evaporator and the water cooling device are all plate heat exchangers.
Preferably, the first valve and the second valve are both thermal expansion valves and are always opened, and the third valve, the fourth valve and the fifth valve are all check valves.
Preferably, the compressor is a magnetic levitation compressor with an auxiliary air inlet.
Preferably, the heat exchanger is a fin heat exchanger.
The invention has the beneficial effects that: the invention solves the requirement of simultaneously using rooms with different requirements on temperature and humidity by adopting the combination of quasi-two-stage compression refrigeration and four-pipe system technology, can independently refrigerate and heat, also improves the efficiency of the compressor, solves the problem of insufficient heating and cooling capacity, and simultaneously reduces the energy consumption as much as possible by using the heat recovery device, thereby saving energy to the maximum extent.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of a quasi-two-stage compression four-pipe air conditioning system according to the present invention.
In the figure: the system comprises a compressor 1, a four-way reversing valve 2, a condenser 3, a liquid storage device 4, a first valve 5, a water cooling device 6, a gas-liquid separator 7, a heat recovery device 8, a second valve 9, a third valve 10, an evaporator 11, a fourth valve 12, a fin heat exchanger 13 and a fifth valve 14.
[ detailed description ] embodiments
Referring to fig. 1, the quasi-two-stage compression four-pipe air conditioning system of the present invention includes a compressor 1, a four-way reversing valve 2, a condenser 3, a liquid reservoir 4, a first valve 5, a water cooling device 6, a gas-liquid separator 7, a second valve 9, a third valve 10, an evaporator 11, a fourth valve 12, a finned heat exchanger 13 and a fifth valve 14, wherein an exhaust port of the compressor 1 is connected to a port D of the four-way reversing valve 2, a port C of the four-way reversing valve 2 is connected to an inlet of the condenser 3, an outlet of the condenser 3 is connected to an inlet of the liquid reservoir 4, an outlet of the liquid reservoir 4 is connected to an inlet of the first valve 5, an outlet of the first valve 5 is connected to inlets of the second valve 9 and the water cooling device 6, an outlet of the water cooling device 6 is connected to an auxiliary air inlet of the compressor 1, an outlet of the second valve 9 is connected to inlets of the third valve 10 and the fourth valve 12, the outlet of the third valve 10 is connected with the inlet of the evaporator 11, the outlet of the evaporator 11 is connected with the inlet of the gas-liquid separator 7, the outlet of the gas-liquid separator 7 is connected with the air inlet of the compressor 1, the outlet of the fourth valve 12 is respectively connected with the inlets of the fin heat exchanger 13 and the fifth valve 14, the outlet of the fifth valve 14 is connected with the inlet of the liquid reservoir 4, the outlet of the fin heat exchanger 13 is connected with the port E of the four-way reversing valve 2, the port S of the four-way reversing valve 2 is connected with the inlet of the gas-liquid separator 7, a heat recoverer 8 is arranged on a pipeline between the gas-liquid separator 7 and the compressor 1, the heat recoverer 8 is a volume heat recoverer, the condenser 3, the evaporator 11 and the water cooling device 6 are plate heat exchangers, the first valve 5 and the second valve 9 are thermal expansion valves and are always opened, and the third valve 10 is a heat exchanger, The fourth valve 12 and the fifth valve 14 are check valves, the compressor 1 is a magnetic suspension compressor 1 with an auxiliary air inlet, and the heat exchanger 13 is a fin heat exchanger.
The working process of the invention is as follows:
in the working process of the quasi-two-stage compression four-pipe air conditioning system, when the system is in a heating and refrigerating working condition, the four-way reversing valve 2 is closed, the third valve 10 is opened, and the fourth valve 12 and the fifth valve 14 are closed. The refrigerant sequentially passes through the compressor 1, the port D of the four-way reversing valve 2, the port C of the four-way reversing valve 2, the condenser 3, the liquid storage device 4 and the first valve 5 and then is divided into two paths, wherein one path passes through the water cooling device 6, and the other path passes through the second valve 9. One path of the water passes through the water cooling device 6 and reaches the compressor 1 to form a loop, and one path of the water enters the second valve 9, passes through the third valve 10 and the evaporator 11, enters the gas-liquid separator 7, passes through the positive displacement heat recovery device 8 and reaches the compressor 1 to form a loop. When the air conditioner works, low-pressure superheated gas enters the compressor 1 to be compressed, heated and pressurized, high-pressure superheated steam generates high-pressure saturated or supercooled liquid through the condenser 3, a refrigerant enters the liquid storage device 4, enters the expansion valve, is throttled to a certain pressure in the middle, then enters the water cooling device 6 to perform heat exchange in two ways, is evaporated and then is sucked by the auxiliary air inlet of the compressor 1, and the water cooling device 6 simultaneously generates cold water for supply. The other path of the gas enters a second valve 9, further low-pressure liquid is generated and enters an evaporator 11, low-pressure saturated or superheated steam is generated and enters a gas-liquid separator 7 to realize gas-liquid separation, and the gas enters a heat recovery device 8 to recover heat and then enters the compressor 1.
And under the independent heating working condition, the four-way reversing valve 2 is opened, the fourth valve 12 is opened, and the third valve 10 and the fifth valve 14 are closed. The refrigerant sequentially passes through the compressor 1, the port D of the four-way reversing valve 2, the port C of the four-way reversing valve 2, the condenser 3, the liquid storage device 4 and the first valve 5 and then is divided into two paths, wherein one path passes through the water cooling device 6, and the other path passes through the second valve 9. One path of the water passes through the water cooling device 6 and reaches the compressor 1 to form a loop, and the other path of the water enters the second valve 9, passes through the fourth valve 12, the fin heat exchanger 13, the port E of the four-way reversing valve 2 and the port S of the four-way reversing valve 2, enters the gas-liquid separator 7, passes through the heat recoverer 8 and reaches the compressor 1 to form a loop. During operation, a refrigerant enters the liquid storage device 4, enters the expansion valve, is throttled to a certain pressure in the middle, enters one path of the second valve 9, further generates low-pressure liquid, enters the finned heat exchanger 13 through the fourth valve 12, generates low-pressure saturated or superheated steam, and enters the gas-liquid separator 7 to realize gas-liquid separation.
And under the independent refrigeration working condition, the four-way reversing valve 2 is opened, the third valve 10 and the fifth valve 14 are opened, and the fourth valve 12 is closed. The refrigerant is divided into two paths after sequentially passing through the compressor 1, the four-way reversing valve 2 port D, the four-way reversing valve 2 port E, the finned heat exchanger 13, the fourth valve 12, the liquid storage device 4 and the first valve 5, wherein one path passes through the water cooling device 6, and the other path passes through the second valve 9. One path of the water passes through the water cooling device 6 and reaches the compressor 1 to form a loop, and one path of the water enters the second valve 9, passes through the third valve 10 and the evaporator 11, enters the gas-liquid separator 7, passes through the heat recovery device 8 and reaches the compressor 1 to form a loop. During operation, a refrigerant enters the liquid storage device 4, enters the expansion valve, is throttled to a certain pressure in the middle, enters one path of the second valve 9, further generates low-pressure liquid, enters the evaporator 11 through the third valve 10, generates low-pressure saturated or superheated steam, and enters the gas-liquid separator 7 to realize gas-liquid separation.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a four pipe system air conditioning system of quasi-second grade compression which characterized in that: the heat exchanger comprises a compressor (1), a four-way reversing valve (2), a condenser (3), a liquid storage device (4), a first valve (5), a water cooling device (6), a gas-liquid separator (7), a second valve (9), a third valve (10), an evaporator (11), a fourth valve (12), a fin heat exchanger (13) and a fifth valve (14), wherein an exhaust port of the compressor (1) is connected with a port D of the four-way reversing valve (2), a port C of the four-way reversing valve (2) is connected with an inlet of the condenser (3), an outlet of the condenser (3) is connected with an inlet of the liquid storage device (4), an outlet of the liquid storage device (4) is connected with an inlet of the first valve (5), an outlet of the first valve (5) is respectively connected with inlets of the second valve (9) and the water cooling device (6), and an outlet of the water cooling device (6) is connected with an auxiliary air inlet of the compressor (1), the outlet of the second valve (9) is connected with the inlets of a third valve (10) and a fourth valve (12) respectively, the outlet of the third valve (10) is connected with the inlet of an evaporator (11), the outlet of the evaporator (11) is connected with the inlet of a gas-liquid separator (7), the outlet of the gas-liquid separator (7) is connected with the air inlet of a compressor (1), the outlet of the fourth valve (12) is connected with the inlets of a fin heat exchanger (13) and a fifth valve (14) respectively, the outlet of the fifth valve (14) is connected with the inlet of a liquid storage device (4), the outlet of the fin heat exchanger (13) is connected with a port E of a four-way reversing valve (2), and a port S of the four-way reversing valve (2) is connected with the inlet of the gas-liquid separator (7).
2. A quasi-two-stage compression four-pipe air conditioning system as claimed in claim 1, wherein: and a heat recoverer (8) is arranged on a pipeline between the gas-liquid separator (7) and the compressor (1).
3. A quasi-two-stage compression four-pipe air conditioning system as claimed in claim 2, wherein: the heat recoverer (8) is a positive displacement heat recoverer.
4. A quasi-two-stage compression four-pipe air conditioning system as claimed in claim 1, wherein: the condenser (3), the evaporator (11) and the water cooling device (6) are all plate heat exchangers.
5. A quasi-two-stage compression four-pipe air conditioning system as claimed in claim 1, wherein: the first valve (5) and the second valve (9) are thermal expansion valves and are opened all the time, and the third valve (10), the fourth valve (12) and the fifth valve (14) are check valves.
6. A quasi-two-stage compression four-pipe air conditioning system as claimed in claim 1, wherein: the compressor (1) is a magnetic suspension compressor (1) with an auxiliary air inlet.
7. A quasi-two-stage compression four-pipe air conditioning system as claimed in any one of claims 1 to 6, wherein: the heat exchanger (13) is a fin heat exchanger.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110293660.3A CN113154557B (en) | 2021-03-19 | 2021-03-19 | Quasi-two-stage compression four-pipe air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110293660.3A CN113154557B (en) | 2021-03-19 | 2021-03-19 | Quasi-two-stage compression four-pipe air conditioning system |
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| CN113154557A true CN113154557A (en) | 2021-07-23 |
| CN113154557B CN113154557B (en) | 2022-12-20 |
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| CN202110293660.3A Active CN113154557B (en) | 2021-03-19 | 2021-03-19 | Quasi-two-stage compression four-pipe air conditioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353358A (en) * | 2021-12-16 | 2022-04-15 | 臣功(北京)科技有限公司 | Temperature and humidity independent control constant temperature and humidity unit based on solution dehumidification |
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| DE10029662A1 (en) * | 2000-06-23 | 2002-01-03 | Uwe Zeiler | System of refrigeration machines, heat exchangers for air conditioning has bivalent mode with plate heat exchangers, refrigeration machines producing refrigeration power simultaneously |
| CN101294754A (en) * | 2008-05-26 | 2008-10-29 | 刘雄 | Multifunctional air conditioner heat pump |
| CN102937347A (en) * | 2012-12-10 | 2013-02-20 | 广州柯兰特热能科技有限公司 | Enhanced vapor injection type triple co-generation machine |
| CN111288679A (en) * | 2020-03-09 | 2020-06-16 | 中国轻工业武汉设计工程有限责任公司 | Single-stage and double-stage switching evaporation supercooling ejector refrigeration heat pump circulation system |
| CN211119734U (en) * | 2019-12-05 | 2020-07-28 | 孚莱美科(江苏)环境科技有限公司 | Four-pipe system central air-conditioning system |
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2021
- 2021-03-19 CN CN202110293660.3A patent/CN113154557B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10029662A1 (en) * | 2000-06-23 | 2002-01-03 | Uwe Zeiler | System of refrigeration machines, heat exchangers for air conditioning has bivalent mode with plate heat exchangers, refrigeration machines producing refrigeration power simultaneously |
| CN101294754A (en) * | 2008-05-26 | 2008-10-29 | 刘雄 | Multifunctional air conditioner heat pump |
| CN102937347A (en) * | 2012-12-10 | 2013-02-20 | 广州柯兰特热能科技有限公司 | Enhanced vapor injection type triple co-generation machine |
| CN211119734U (en) * | 2019-12-05 | 2020-07-28 | 孚莱美科(江苏)环境科技有限公司 | Four-pipe system central air-conditioning system |
| CN111288679A (en) * | 2020-03-09 | 2020-06-16 | 中国轻工业武汉设计工程有限责任公司 | Single-stage and double-stage switching evaporation supercooling ejector refrigeration heat pump circulation system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114353358A (en) * | 2021-12-16 | 2022-04-15 | 臣功(北京)科技有限公司 | Temperature and humidity independent control constant temperature and humidity unit based on solution dehumidification |
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| CN113154557B (en) | 2022-12-20 |
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