CN105466091A - Heat pump type air conditioner refrigerating circulating system with subcooler - Google Patents
Heat pump type air conditioner refrigerating circulating system with subcooler Download PDFInfo
- Publication number
- CN105466091A CN105466091A CN201510929234.9A CN201510929234A CN105466091A CN 105466091 A CN105466091 A CN 105466091A CN 201510929234 A CN201510929234 A CN 201510929234A CN 105466091 A CN105466091 A CN 105466091A
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- Prior art keywords
- heat exchanger
- subcooler
- outdoor
- indoor
- cold
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Classifications
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- F25B13/00—Compression machines, plants or systems, with 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/006—Fluid-circulation arrangements optical fluid control arrangements
-
- 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0232—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with bypasses
- F25B2313/02322—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with bypasses during defrosting
-
- 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
- F25B2347/00—Details for preventing or removing deposits or corrosion
- F25B2347/02—Details of defrosting cycles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
A heat pump type air conditioner refrigerating circulating system with a subcooler comprises a liquid storage device, a compressor, a four-way reversing valve, an indoor-side heat exchanger, a one-way valve, an electronic expansion valve, the subcooler and an outdoor-side heat exchanger. The liquid storage device, the compressor, the four-way reversing valve, the subcooler and the outdoor-side heat exchanger are located on the outdoor side and the indoor-side heat exchanger is located on the indoor side. Outdoor air passes the subcooler firstly and then flows through the outdoor-side heat exchanger. When the system is in a heating circulating mode, the indoor-side heat exchanger serves as a condenser, the outdoor-side heat exchanger serves as an evaporator, a high-temperature refrigerating agent is condensed and emits heat in the indoor-side heat exchanger to supply heat to the indoor environment and then flows into the subcooler to emit heat, on the one hand, the refrigerating agent is further subcooled, and on the other hand, the temperature of air entering the outdoor-side heat exchanger is increased, the evaporation temperature of the system is increased, and frost formation of the outdoor-side heat exchanger is effectively slowed. The subcooler still can further subcool the refrigerating agent when the system is in a refrigerating circulating mode.
Description
Technical field
The invention belongs to refrigeration and air-conditioning technical field, be specifically related to a kind of heat pump type air conditioner refrigeration system with subcooler.
Background technology
Heat pump type air conditioner is a kind of heating cooling equipment of energy-conserving and environment-protective, is that a kind of electric energy that consumes makes heat flow to the device of high-temperature position thermal source from low level heat source.Although heat pump type air conditioner consumes a certain amount of electric energy, the heat provided is the low-temperature level heat sum of electric energy and the absorption consumed.Therefore, heat pump type air conditioning apparatus is adopted can to reach energy-conservation object.But heat pump type air conditioner is when heating in the winter time, outside air temperature is lower, and the evaporating temperature of heat pump type air conditioner system is too low, and when evaporating temperature is below the freezing point temperature, outdoor air is very easily in evaporator surface frosting.Frosting not only increases the resistance that air flows through outdoor heat exchanger; decrease air mass flow; thus reduce unit heating performance; and increase the heat transfer resistance of outdoor air and cold-producing medium; reduce heat transfer effect; cause that system heating capacity is obviously decayed, system energy efficiency sharply declines, and even occurs compressor shutdown time serious, system cisco unity malfunction.Therefore, heat pump type air conditioner needs to defrost timely.And there is the problem such as the indoor thermal comfort of impact, defrosting time length in current most widely used reverse cycle defrosting method.Frosting problem when heat pump type air conditioner system heats circulation pattern in the winter time and defrosting problem have become the bottleneck of its Effec-tive Function of restriction, how can effectively suppress or delay the frosting of heat pump type air conditioner system and efficiently realize outdoor heat exchanger defrosting fast, reduce because of frosting and defrost process to the adverse effect that unit and indoor environment cause be related to heat pump type air conditioner system can more extensively and the key issue of Effec-tive Function.
Summary of the invention
For solving the defect and deficiency that exist in above-mentioned prior art, the object of the present invention is to provide a kind of heat pump type air conditioner cooling cycle system with subcooler, when this heat pump type air conditioner cooling cycle system heats in the winter time, (its potential temperature is lower for indoor heat exchanger (making condenser to use) cold-producing medium out, not enough heat supply), enter outdoor subcooler and release heat to outdoor air intake, excessively cold before achieving throttling on the one hand, heated on the other hand the air that the outdoor that enters outdoor heat exchanger (making evaporimeter to use) is colder, improve its EAT, and then improve the evaporating temperature of system, thus effectively can delay the outdoor heat exchanger frosting of heat pump type air conditioner cooling cycle system, during kind of refrigeration cycle, subcooler still can be used as subcooler and plays super cooling effect, thus increases refrigerating capacity, positive impetus is had to the development prevented or delay heat pump type air conditioner system frosting technology.
For achieving the above object, the technical solution adopted in the present invention is:
With a heat pump type air conditioner cooling cycle system for subcooler, comprise reservoir 101, compressor 102, four-way change-over valve 103, indoor heat exchanger 104, check valve 105, electric expansion valve 106, subcooler 107, electric expansion valve 108, check valve 109 and outdoor heat exchanger 110; Described reservoir 101, compressor 102, four-way change-over valve 103, subcooler 107, electric expansion valve 108, check valve 109 and outdoor heat exchanger 110 are positioned at outside; Described indoor heat exchanger 104 is positioned at indoor; When not changing link position, described check valve 105 and electric expansion valve 106 are positioned at indoor or are positioned at outside; Described check valve 105 and electric expansion valve 106 parallel join, and parallel pipeline one end is connected with indoor heat exchanger 104, the other end is connected with subcooler 107; Described unidirectional electron expansion valve 108 and check valve 109 parallel join, and parallel pipeline one end is connected with outdoor heat exchanger 110, the other end is connected with subcooler 107; During described system works, outdoor air is first by subcooler 107, then flows through outdoor heat exchanger 110; Described system comprises two kinds of mode of operations: heat circulation pattern and kind of refrigeration cycle pattern.
When described heat pump type air conditioner cooling cycle system is in and heats circulation pattern, indoor heat exchanger 104 as condenser, outdoor heat exchanger 110) as evaporimeter; The cold-producing medium of HTHP is discharged by compressor 102, indoor heat exchanger 104 is flowed into through four-way change-over valve 103, high temperature refrigerant in indoor heat exchanger 104 condensation heat release for indoor provide heat, cold-producing medium flows into further heat release in subcooler 107 via check valve 105 afterwards, heat the EAT of external environment, now electric expansion valve 106 is in closed condition simultaneously; Cold-producing medium is through electric expansion valve 108 throttling subsequently, and now check valve 109 is in cut-off state, and flow of refrigerant enters outdoor heat exchanger 110 afterwards, returns compressor 102 after flowing through four-way change-over valve 103, reservoir 101 successively; Heat pump type air conditioner cooling cycle system utilizes described subcooler 107, achieve the excessively cold further of cold-producing medium on the one hand, described subcooler 107 heated outdoor air on the other hand, improve the EAT of described outdoor heat exchanger 110, improve the evaporating temperature of system, thus effectively slow down the frosting on described outdoor heat exchanger 110 surface.
When described heat pump type air conditioner cooling cycle system is in kind of refrigeration cycle pattern, indoor heat exchanger 104 as evaporimeter, outdoor heat exchanger 110) as condenser; The cold-producing medium of HTHP is discharged by compressor 102, outdoor heat exchanger 110 is flowed into after four-way change-over valve 103, subcooler 107 is entered again via check valve 109, now electric expansion valve 108 is in closed condition, cold-producing medium is further heat release in subcooler 107, thus achieve excessively cold further, cold-producing medium flows into indoor heat exchanger 104 after flowing through electric expansion valve 106 throttling afterwards, now check valve 105 is in cut-off state, and cold-producing medium returns compressor 102 after flowing through four-way change-over valve 103, reservoir 101 successively subsequently; Described subcooler 107, when the kind of refrigeration cycle pattern of system, still can play effect excessively cold further to cold-producing medium.
Compare tool of the present invention with traditional heat pump type air conditioner cooling cycle system to have the following advantages:
1, be no matter heat, kind of refrigeration cycle pattern, the increase of subcooler all improves the degree of supercooling before throttling, is conducive to the unit mass refrigerating capacity of raising system.
2, when heating circulation pattern, this system utilizes subcooler heating clamber outer air, improves the EAT of outdoor heat exchanger, improves the evaporating temperature of system, thus effectively slow down the frosting on outdoor heat exchanger surface.
3, when heating circulation pattern, subcooler heated the air intake of outdoor heat exchanger, improves the evaporating temperature of system, thus improves the efficiency of system, produces energy-conservation effect.
4, when heating circulation pattern, by outdoor air medium, cold-producing medium being crossed the low-temperature level transfer of heat of cold releasing to vaporizer side cold-producing medium, then rising to high-temperature position for heat supply by compressor work.
The present invention has obvious characteristics and advantages, serious for the frosting under current heat pump type air conditioner in the winter time heating mode, defrost frequent problem, the frosting of outdoor heat exchanger when proposing a kind of heat pump type air conditioner cooling cycle system with subcooler, effectively can improve the efficiency of heat pump type air conditioner cooling cycle system, suppress or slow down heating mode.
Accompanying drawing explanation
Fig. 1 is cooling cycle system schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, with a heat pump type air conditioner cooling cycle system for subcooler, comprising: the parts such as reservoir 101, compressor 102, four-way change-over valve 103, indoor heat exchanger 104, check valve 105, electric expansion valve 106, subcooler 107, electric expansion valve 108, check valve 109 and outdoor heat exchanger 110.Described reservoir 101, compressor 102, four-way change-over valve 103, subcooler 107, electric expansion valve 108, check valve 109, outdoor heat exchanger 110 are positioned at outside, and described indoor heat exchanger 104 is positioned at indoor.When not changing link position, described check valve 105, electric expansion valve 106 can be positioned at indoor, also can be positioned at outside.During described system works, outdoor air is first by subcooler 107, then flows through outdoor heat exchanger 110.
Described check valve 105 and electric expansion valve 106 parallel join, and parallel pipeline one end is connected with indoor heat exchanger 104, the other end is connected with subcooler 107.Described electric expansion valve 108 and check valve 109 parallel join, and parallel pipeline one end is connected with outdoor heat exchanger 110, the other end is connected with subcooler 107; Described indoor heat exchanger 104 and the right side of the four-way change-over valve 103 mouth mouth of pipe that commutates is connected; Described outdoor heat exchanger 110 and the left side of the four-way change-over valve 103 mouth mouth of pipe that commutates is connected; Low pressure gas outlet, the upside mouth of pipe of described four-way change-over valve 103 is connected with the air entry of compressor 102 by reservoir 101, and the downside high pressure admission mouth mouth of pipe of described four-way change-over valve 103 is connected with the exhaust outlet of compressor 102; During described system works, outdoor air is first by subcooler 107, then flows through outdoor heat exchanger 110; Described system comprises two kinds of mode of operations: heat circulation pattern and kind of refrigeration cycle pattern.
When described heat pump type air conditioner cooling cycle system is in and heats circulation pattern, indoor heat exchanger 104 is as condenser, and outdoor heat exchanger 110 is as evaporimeter.The cold-producing medium of HTHP is discharged by compressor 102, indoor heat exchanger 104 is flowed into through four-way change-over valve 103, high temperature refrigerant in indoor heat exchanger 104 condensation heat release for indoor provide heat, cold-producing medium flows into further heat release in subcooler 107 via check valve 105 afterwards, and now electric expansion valve 106 is in closed condition.Cold-producing medium is through electric expansion valve 108 throttling subsequently, and now check valve 109 is in cut-off state, and cold-producing medium returns compressor 102 after flowing through outdoor heat exchanger 110, four-way change-over valve 103, reservoir 101 successively afterwards.This system utilizes subcooler 107, achieve the excessively cold further of cold-producing medium on the one hand, subcooler 107 heated outdoor air on the other hand, improves the EAT of outdoor heat exchanger 110, improve the evaporating temperature of system, thus effectively slow down the frosting on outdoor heat exchanger 110 surface.
When described heat pump type air conditioner cooling cycle system is in kind of refrigeration cycle pattern, indoor heat exchanger 104 is as evaporimeter, and outdoor heat exchanger 110 is as condenser.The cold-producing medium of HTHP is discharged by compressor 102, outdoor heat exchanger 110 is flowed into after four-way change-over valve 103, subcooler 107 is entered again via check valve 109, now electric expansion valve 108 is in closed condition, cold-producing medium is further heat release in subcooler 107, thus achieves the excessively cold further of cold-producing medium.Cold-producing medium flows through electric expansion valve 106 and carries out throttling afterwards, and now check valve 105 is in cut-off state, and cold-producing medium returns compressor 102 after flowing through indoor heat exchanger 104, four-way change-over valve 103, reservoir 101 successively subsequently.Described subcooler 107, when the kind of refrigeration cycle pattern of system, still can play effect excessively cold further to cold-producing medium.
Claims (3)
1. the heat pump type air conditioner cooling cycle system with subcooler, is characterized in that: comprise reservoir (101), compressor (102), four-way change-over valve (103), indoor heat exchanger (104), check valve (105), electric expansion valve (106), subcooler (107), electric expansion valve (108), check valve (109) and outdoor heat exchanger (110); Described reservoir (101), compressor (102), four-way change-over valve (103), subcooler (107), electric expansion valve (108), check valve (109) and outdoor heat exchanger (110) are positioned at outside; Described indoor heat exchanger (104) is positioned at indoor; When not changing link position, described check valve (105) and electric expansion valve (106) are positioned at indoor or are positioned at outside; Described check valve (105) and electric expansion valve (106) parallel join, and parallel pipeline one end is connected with indoor heat exchanger (104), the other end is connected with subcooler (107); Described unidirectional electron expansion valve (108) and check valve (109) parallel join, and parallel pipeline one end is connected with outdoor heat exchanger (110), the other end is connected with subcooler (107); During described system works, outdoor air is first by subcooler (107), then flows through outdoor heat exchanger (110); Described system comprises two kinds of mode of operations: heat circulation pattern and kind of refrigeration cycle pattern.
2. a kind of heat pump type air conditioner cooling cycle system with subcooler according to claim 1, it is characterized in that: when described heat pump type air conditioner cooling cycle system is in and heats circulation pattern, indoor heat exchanger (104) is as condenser, and outdoor heat exchanger (110) is as evaporimeter; The cold-producing medium of HTHP is discharged by compressor (102), indoor heat exchanger (104) is flowed into through four-way change-over valve (103), high temperature refrigerant in indoor heat exchanger (104) condensation heat release for indoor provide heat, cold-producing medium flows into heat release further in subcooler (107) via check valve (105) afterwards, heat the EAT of external environment, now electric expansion valve (106) is in closed condition simultaneously; Cold-producing medium is through electric expansion valve (108) throttling subsequently, now check valve (109) is in cut-off state, flow of refrigerant enters outdoor heat exchanger (110) afterwards, returns compressor (102) after flowing through four-way change-over valve (103), reservoir (101) successively; Heat pump type air conditioner cooling cycle system utilizes described subcooler (107), achieve the excessively cold further of cold-producing medium on the one hand, described subcooler (107) heated outdoor air on the other hand, improve the EAT of described outdoor heat exchanger (110), improve the evaporating temperature of system, thus effectively slow down the frosting on described outdoor heat exchanger (110) surface.
3. a kind of heat pump type air conditioner cooling cycle system with subcooler according to claim 1, it is characterized in that: when described heat pump type air conditioner cooling cycle system is in kind of refrigeration cycle pattern, indoor heat exchanger (104) is as evaporimeter, and outdoor heat exchanger (110) is as condenser, the cold-producing medium of HTHP is discharged by compressor (102), outdoor heat exchanger (110) is flowed into after four-way change-over valve (103), subcooler (107) is entered again via check valve (109), now electric expansion valve (108) is in closed condition, cold-producing medium is further heat release in subcooler (107), thus achieve excessively cold further, cold-producing medium flows into indoor heat exchanger (104) after flowing through electric expansion valve (106) throttling afterwards, now check valve (105) is in cut-off state, cold-producing medium flows through four-way change-over valve (103) successively subsequently, compressor (102) is returned after reservoir (101), described subcooler (107), when the kind of refrigeration cycle pattern of system, still can play effect excessively cold further to cold-producing medium.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510929234.9A CN105466091A (en) | 2015-12-12 | 2015-12-12 | Heat pump type air conditioner refrigerating circulating system with subcooler |
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| CN201510929234.9A CN105466091A (en) | 2015-12-12 | 2015-12-12 | Heat pump type air conditioner refrigerating circulating system with subcooler |
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| CN201510929234.9A Pending CN105466091A (en) | 2015-12-12 | 2015-12-12 | Heat pump type air conditioner refrigerating circulating system with subcooler |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823273A (en) * | 2016-05-10 | 2016-08-03 | 陈胜君 | Multifunctional gas-liquid comprehensive heat exchange device |
| CN106440458A (en) * | 2016-10-31 | 2017-02-22 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner and air conditioning method |
| CN106705217A (en) * | 2016-11-30 | 2017-05-24 | 美的集团股份有限公司 | Control method and system used for improving heating effect of air conditioner and air conditioner |
| CN106766329A (en) * | 2016-11-30 | 2017-05-31 | 美的集团股份有限公司 | A kind of air-conditioning system, its control method and air-conditioner |
| CN106766330A (en) * | 2016-11-30 | 2017-05-31 | 美的集团股份有限公司 | A kind of air-conditioning system, its control method and air-conditioner |
| CN107152734A (en) * | 2017-07-06 | 2017-09-12 | 珠海格力电器股份有限公司 | A kind of heat exchanger, heat pump air conditioner and control method |
| CN109869800A (en) * | 2019-03-18 | 2019-06-11 | 天津商业大学 | A kind of high temperature heat pump heating system with subcooler |
| CN109910683A (en) * | 2019-04-04 | 2019-06-21 | 珠海格力电器股份有限公司 | Electrombile thermal management system, its control method and electric vehicle |
| CN110284553A (en) * | 2019-06-26 | 2019-09-27 | 马强 | A kind of air water machine |
| CN110345636A (en) * | 2019-07-30 | 2019-10-18 | 西安交通大学 | The heat reclamation type air source hot pump water heater circulatory system and working method |
| CN110410904A (en) * | 2019-07-24 | 2019-11-05 | 华中科技大学 | A kind of densification and high performance humiture independence control air conditioner system |
| CN110762678A (en) * | 2019-11-28 | 2020-02-07 | 无锡同方人工环境有限公司 | Air-cooled heat exchanger assembly and load-adjustable air conditioning system |
| CN112944709A (en) * | 2021-03-29 | 2021-06-11 | 珠海格力电器股份有限公司 | Air source heat pump system and method for slowing down frosting rate |
| CN113218101A (en) * | 2021-04-28 | 2021-08-06 | 湖南雅立科技开发有限公司 | Method and system for improving refrigerant compression heat pump heating cycle by using low-temperature fresh air as heat sink |
| CN113686003A (en) * | 2021-07-20 | 2021-11-23 | 中冶南方武汉建筑设计有限公司 | Building interior waste heat utilization method and central air conditioning system |
| CN113776142A (en) * | 2021-09-09 | 2021-12-10 | 西安交通大学 | Heat pump type air conditioner refrigeration cycle system and control method thereof |
| CN114623628A (en) * | 2022-04-21 | 2022-06-14 | 合肥圣三松冷热技术有限公司 | Heat pump circulating system and working method thereof |
| CN115023573A (en) * | 2019-11-18 | 2022-09-06 | 三菱电器加热及冷却系统股份公司 | Air-cooled refrigeration cycle device |
| WO2022233132A1 (en) * | 2021-05-06 | 2022-11-10 | 青岛海尔空调器有限总公司 | Air conditioner outdoor unit, air conditioner, air conditioner control method and apparatus, and device and medium |
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| CN105823273B (en) * | 2016-05-10 | 2018-03-20 | 陈胜君 | A kind of multifunctional gas-liquid integrates heat-exchanger rig |
| CN105823273A (en) * | 2016-05-10 | 2016-08-03 | 陈胜君 | Multifunctional gas-liquid comprehensive heat exchange device |
| CN106440458A (en) * | 2016-10-31 | 2017-02-22 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner and air conditioning method |
| CN106440458B (en) * | 2016-10-31 | 2022-05-27 | 广东美的制冷设备有限公司 | Air conditioning system, air conditioner and air conditioning method |
| CN106766329A (en) * | 2016-11-30 | 2017-05-31 | 美的集团股份有限公司 | A kind of air-conditioning system, its control method and air-conditioner |
| CN106766330A (en) * | 2016-11-30 | 2017-05-31 | 美的集团股份有限公司 | A kind of air-conditioning system, its control method and air-conditioner |
| CN106705217A (en) * | 2016-11-30 | 2017-05-24 | 美的集团股份有限公司 | Control method and system used for improving heating effect of air conditioner and air conditioner |
| CN107152734A (en) * | 2017-07-06 | 2017-09-12 | 珠海格力电器股份有限公司 | A kind of heat exchanger, heat pump air conditioner and control method |
| CN109869800A (en) * | 2019-03-18 | 2019-06-11 | 天津商业大学 | A kind of high temperature heat pump heating system with subcooler |
| CN109910683A (en) * | 2019-04-04 | 2019-06-21 | 珠海格力电器股份有限公司 | Electrombile thermal management system, its control method and electric vehicle |
| CN109910683B (en) * | 2019-04-04 | 2024-02-09 | 珠海格力电器股份有限公司 | Electric vehicle thermal management system, control method thereof and electric vehicle |
| CN110284553A (en) * | 2019-06-26 | 2019-09-27 | 马强 | A kind of air water machine |
| CN110410904A (en) * | 2019-07-24 | 2019-11-05 | 华中科技大学 | A kind of densification and high performance humiture independence control air conditioner system |
| CN110345636A (en) * | 2019-07-30 | 2019-10-18 | 西安交通大学 | The heat reclamation type air source hot pump water heater circulatory system and working method |
| CN115023573A (en) * | 2019-11-18 | 2022-09-06 | 三菱电器加热及冷却系统股份公司 | Air-cooled refrigeration cycle device |
| CN110762678A (en) * | 2019-11-28 | 2020-02-07 | 无锡同方人工环境有限公司 | Air-cooled heat exchanger assembly and load-adjustable air conditioning system |
| CN112944709A (en) * | 2021-03-29 | 2021-06-11 | 珠海格力电器股份有限公司 | Air source heat pump system and method for slowing down frosting rate |
| CN113218101A (en) * | 2021-04-28 | 2021-08-06 | 湖南雅立科技开发有限公司 | Method and system for improving refrigerant compression heat pump heating cycle by using low-temperature fresh air as heat sink |
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| CN113686003A (en) * | 2021-07-20 | 2021-11-23 | 中冶南方武汉建筑设计有限公司 | Building interior waste heat utilization method and central air conditioning system |
| CN113686003B (en) * | 2021-07-20 | 2022-07-22 | 中冶南方武汉建筑设计有限公司 | Building interior waste heat utilization method and central air conditioning system |
| CN113776142A (en) * | 2021-09-09 | 2021-12-10 | 西安交通大学 | Heat pump type air conditioner refrigeration cycle system and control method thereof |
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