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WO2019091241A1 - Système de circulation de refroidissement pour climatisation, et climatiseur - Google Patents

Système de circulation de refroidissement pour climatisation, et climatiseur Download PDF

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Publication number
WO2019091241A1
WO2019091241A1 PCT/CN2018/107876 CN2018107876W WO2019091241A1 WO 2019091241 A1 WO2019091241 A1 WO 2019091241A1 CN 2018107876 W CN2018107876 W CN 2018107876W WO 2019091241 A1 WO2019091241 A1 WO 2019091241A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
compressor
refrigeration cycle
air conditioner
air conditioning
Prior art date
Application number
PCT/CN2018/107876
Other languages
English (en)
Chinese (zh)
Inventor
王飞
吴洪金
付裕
许文明
Original Assignee
青岛海尔空调器有限总公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 青岛海尔空调器有限总公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2019091241A1 publication Critical patent/WO2019091241A1/fr

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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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • 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
    • F24F5/0003—Exclusively-fluid systems
    • 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
    • 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
    • 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

Definitions

  • the present invention provides an air conditioning refrigeration cycle system including a compressor connected in series in a main circuit, an outdoor heat exchanger, and a first section. a flow device and an indoor heat exchanger, a first gas-liquid separator is further connected in series on the main circuit, and a bypass circuit is arranged between the first gas-liquid separator and the compressor; After the refrigerant flowing out of the heater flows into the first gas-liquid separator through the first throttling device, the gaseous refrigerant flows along the bypass circuit to the compressor, and the liquid refrigerant flows along the main circuit to the Indoor heat exchanger.
  • the bypass circuit through the heat exchanger is a section between the compressor and the second throttle device.
  • the invention adds a first gas-liquid separator to the main circuit to form a bypass circuit with the compressor, and heat exchange between the refrigerant in the bypass circuit and the refrigerant at the end of the outdoor heat exchanger through the heat exchanger
  • the beneficial effects of the technical scheme of the present invention are as follows: (1) increasing the dryness of the refrigerant entering the evaporator (indoor heat exchanger), the pressure drop of the liquid refrigerant is small, and the heat exchange capacity of the latent heat of vaporization is high; (2) the direct return of the gaseous refrigerant to the compression Machine, the pressure drop loss is small, and the heat exchange at the end of the condenser (outdoor heat exchanger) will increase the degree of subcooling of the condenser, reduce the enthalpy of the condenser outlet, and increase the cooling capacity of the whole machine; (3) Direct return of the gaseous refrigerant to the compressor will increase the system return pressure, increase the exhaust pressure, and increase the condensing temperature, thereby increasing
  • FIG. 1 is a schematic structural view of an air conditioning refrigeration cycle system of the present invention
  • Fig. 2 is a schematic diagram showing the heating of the air conditioner of the present invention.
  • the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 1 reaches the outdoor heat exchanger 2 (in this case, the condenser) to perform heat exchange, and becomes a medium-temperature high-pressure liquid refrigerant.
  • the medium-temperature high-pressure liquid refrigerant flows out from the outlet of the outdoor heat exchanger 2, continues to flow along the main circuit, and passes through the first throttling device 3 to form a low-temperature low-pressure gas-liquid mixed state refrigerant, which flows into the first gas-liquid separator 5.
  • the bypass circuit N is provided with a second throttle device 6 for controlling the amount of gaseous refrigerant entering the bypass circuit N.
  • the heat exchanger 7 is for exchanging heat between the refrigerant in the bypass circuit N and the refrigerant in the main circuit.
  • the heat exchanger 7 can be a water tank containing water (the heat exchanger 7 can be in any other suitable form, the water tank is merely illustrative), and the bypass circuit N and the main circuit pass through the water tank, respectively.
  • the medium-temperature high-pressure liquid refrigerant flowing out of the outdoor heat exchanger 2 first passes through the heat exchanger 7 to exchange heat with the water in the heat exchanger 7, and then forms a low-temperature and low-pressure gas-liquid through the first throttling device 3.
  • the mixed refrigerant flows into the first gas-liquid separator 5.
  • the refrigeration cycle system of the present invention has the following beneficial effects: (1) increasing the dryness of the refrigerant entering the evaporator (indoor heat exchanger), the pressure drop of the liquid refrigerant is small, and the latent heat of vaporization is high; (2) The gaseous refrigerant is directly returned to the compressor, and the pressure drop loss is small, and the heat exchange at the end of the condenser (outdoor heat exchanger) increases the degree of subcooling of the condenser and reduces the enthalpy of the condenser outlet, so that the refrigeration capacity of the whole machine is also (3) The direct return of the gaseous refrigerant to the compressor will increase the system return pressure, increase the exhaust pressure, and increase the condensing temperature, thereby increasing the convective heat transfer temperature difference of the condenser and increasing the system cooling capacity.
  • the air conditioner further includes a bypass defrost circuit M disposed between the compressor 1 and the outdoor heat exchanger 2, and the bypass defrost circuit M is provided with a third throttle device 9.
  • the third throttle device 9 is closed and does not participate in the refrigeration/heating cycle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

L'invention concerne un système de circulation de refroidissement pour climatisation. Ledit système comprend un compresseur (1), un échangeur de chaleur externe (2), un premier dispositif d'étranglement (3), un échangeur de chaleur interne (4) et un premier séparateur vapeur-liquide (5) qui sont connectés en série dans une boucle principale. Une boucle de dérivation (N) est disposée entre le premier séparateur vapeur-liquide (5) et le compresseur (1). Une fois qu'un fluide frigorigène s'écoulant hors de l'échangeur de chaleur externe (2) est passé à travers le premier dispositif d'étranglement (3) et s'est écoulé dans le premier séparateur vapeur-liquide (5), un fluide frigorigène en phase gazeuse s'écoule le long de la boucle de dérivation (N) pour entrer dans le compresseur (1) et un fluide frigorigène en phase liquide s'écoule le long de la boucle principale pour entrer dans l'échangeur de chaleur externe (4). Dans le système, la perte de pression du fluide frigorigène en phase gazeuse est réduite, réduisant ainsi la consommation d'énergie du système tout en augmentant la pression du gaz de retour du système, la pression du gaz de décharge du système et la température de condensation, et par conséquent l'augmentation d'une différence de température de l'échange de chaleur par convection du réfrigérant dans l'échangeur de chaleur externe (2) et la réalisation d'une capacité de refroidissement accrue du système. L'invention concerne également un climatiseur équipé du système de circulation de refroidissement pour climatisation.
PCT/CN2018/107876 2017-11-09 2018-09-27 Système de circulation de refroidissement pour climatisation, et climatiseur WO2019091241A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711097636.2 2017-11-09
CN201711097636.2A CN107763774A (zh) 2017-11-09 2017-11-09 空调制冷循环系统及空调器

Publications (1)

Publication Number Publication Date
WO2019091241A1 true WO2019091241A1 (fr) 2019-05-16

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WO (1) WO2019091241A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110671842A (zh) * 2019-10-08 2020-01-10 珠海格力电器股份有限公司 可增强蒸发换热效果的空调系统
CN111442552A (zh) * 2020-05-11 2020-07-24 珠海格力电器股份有限公司 复叠式冷媒循环系统、空调设备和复叠式冷媒循环系统的控制方法
CN113587483A (zh) * 2020-04-30 2021-11-02 李建军 冷媒逆向循环冷热互换节能增效系统
CN115537308A (zh) * 2021-09-10 2022-12-30 青岛海尔生物医疗科技有限公司 培养箱
WO2024179182A1 (fr) * 2023-02-27 2024-09-06 广东美的暖通设备有限公司 Système de climatisation, procédé de commande, dispositif s'y rapportant et support de stockage

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107763774A (zh) * 2017-11-09 2018-03-06 青岛海尔空调器有限总公司 空调制冷循环系统及空调器
CN110469926B (zh) * 2018-05-11 2022-05-24 开利公司 用于空调系统的水循环系统及其控制方法
CN110822592B (zh) * 2019-11-04 2024-08-06 珠海格力电器股份有限公司 一种能在超宽环温运行制冷的空调系统
CN114576826B (zh) * 2020-11-30 2023-11-07 广东美的制冷设备有限公司 空调器的运行控制方法、控制装置、空调器和存储介质
CN114688695A (zh) * 2020-12-31 2022-07-01 广东美的制冷设备有限公司 空调器及其控制方法和计算机可读存储介质
CN112629082B (zh) * 2021-01-08 2024-09-06 珠海格力电器股份有限公司 一种制热控制系统、多联机空调系统及制热控制方法
CN113074499A (zh) * 2021-03-17 2021-07-06 广东大稳节能测试设备有限公司 环境试验箱的能耗节约装置、环境试验箱及其控制方法
CN115218362A (zh) * 2021-04-21 2022-10-21 芜湖美智空调设备有限公司 空调器的补气控制方法、装置、空调器及存储介质
CN113237242B (zh) * 2021-05-27 2023-07-07 深圳麦克维尔空调有限公司 空调系统及其控制方法

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JPH07332814A (ja) * 1994-06-08 1995-12-22 Daikin Ind Ltd ヒートポンプシステム
JP2008175452A (ja) * 2007-01-18 2008-07-31 Calsonic Kansei Corp 空気調和方法及び空気調和装置
CN101532705A (zh) * 2009-04-21 2009-09-16 海信（山东）空调有限公司 一种冷暖型变频空调器及其除霜方法
JP2012077984A (ja) * 2010-09-30 2012-04-19 Daikin Industries Ltd 冷凍回路
CN205919561U (zh) * 2016-07-04 2017-02-01 中原工学院 一种浓度可调的非共沸混合工质热泵空调系统
CN106461296A (zh) * 2014-05-19 2017-02-22 三菱电机株式会社 空调装置
CN106482375A (zh) * 2015-08-28 2017-03-08 江森自控日立空调技术（香港）有限公司 空调机
CN107763774A (zh) * 2017-11-09 2018-03-06 青岛海尔空调器有限总公司 空调制冷循环系统及空调器
CN207702631U (zh) * 2017-11-09 2018-08-07 青岛海尔空调器有限总公司 空调制冷循环系统及空调器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07332814A (ja) * 1994-06-08 1995-12-22 Daikin Ind Ltd ヒートポンプシステム
JP2008175452A (ja) * 2007-01-18 2008-07-31 Calsonic Kansei Corp 空気調和方法及び空気調和装置
CN101532705A (zh) * 2009-04-21 2009-09-16 海信（山东）空调有限公司 一种冷暖型变频空调器及其除霜方法
JP2012077984A (ja) * 2010-09-30 2012-04-19 Daikin Industries Ltd 冷凍回路
CN106461296A (zh) * 2014-05-19 2017-02-22 三菱电机株式会社 空调装置
CN106482375A (zh) * 2015-08-28 2017-03-08 江森自控日立空调技术（香港）有限公司 空调机
CN205919561U (zh) * 2016-07-04 2017-02-01 中原工学院 一种浓度可调的非共沸混合工质热泵空调系统
CN107763774A (zh) * 2017-11-09 2018-03-06 青岛海尔空调器有限总公司 空调制冷循环系统及空调器
CN207702631U (zh) * 2017-11-09 2018-08-07 青岛海尔空调器有限总公司 空调制冷循环系统及空调器

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110671842A (zh) * 2019-10-08 2020-01-10 珠海格力电器股份有限公司 可增强蒸发换热效果的空调系统
CN113587483A (zh) * 2020-04-30 2021-11-02 李建军 冷媒逆向循环冷热互换节能增效系统
CN111442552A (zh) * 2020-05-11 2020-07-24 珠海格力电器股份有限公司 复叠式冷媒循环系统、空调设备和复叠式冷媒循环系统的控制方法
CN115537308A (zh) * 2021-09-10 2022-12-30 青岛海尔生物医疗科技有限公司 培养箱
WO2024179182A1 (fr) * 2023-02-27 2024-09-06 广东美的暖通设备有限公司 Système de climatisation, procédé de commande, dispositif s'y rapportant et support de stockage

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