WO2018078808A1 - Climatiseur - Google Patents

Climatiseur Download PDF

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Publication number
WO2018078808A1
WO2018078808A1 PCT/JP2016/082119 JP2016082119W WO2018078808A1 WO 2018078808 A1 WO2018078808 A1 WO 2018078808A1 JP 2016082119 W JP2016082119 W JP 2016082119W WO 2018078808 A1 WO2018078808 A1 WO 2018078808A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant
pressure
valve
compressor
air conditioner
Prior art date
Application number
PCT/JP2016/082119
Other languages
English (en)
Japanese (ja)
Inventor
雄亮 田代
孔明 仲島
雅一 佐藤
祐介 安達
早丸 靖英
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to US16/313,671 priority Critical patent/US20200018530A1/en
Priority to EP16920284.3A priority patent/EP3534088B1/fr
Priority to JP2017545775A priority patent/JP6312943B1/ja
Priority to AU2016427727A priority patent/AU2016427727B2/en
Priority to CN201680089229.4A priority patent/CN109891164A/zh
Priority to KR1020197005898A priority patent/KR102147693B1/ko
Priority to PCT/JP2016/082119 priority patent/WO2018078808A1/fr
Publication of WO2018078808A1 publication Critical patent/WO2018078808A1/fr
Priority to US17/181,541 priority patent/US20210180842A1/en
Priority to US17/181,511 priority patent/US20210172659A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00Compression machines, plants or systems with non-reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • F25B41/33Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
    • F25B41/335Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant via diaphragms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/385Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/39Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2341/00Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06Details of flow restrictors or expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/25Control of valves
    • F25B2600/2513Expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19Pressures
    • F25B2700/191Pressures near an expansion valve

Definitions

  • Patent Document 1 An air conditioner using R32 as a refrigerant and equipped with LEV is disclosed in, for example, Japanese Patent Application Laid-Open No. 2016-109356 (Patent Document 1).
  • the refrigerant circuit 13 includes a compressor 1, a condenser 2, a pressure adjustment valve 3, and an evaporator 4.
  • the refrigerant circuit 13 is configured by connecting the compressor 1, the condenser 2, the pressure regulating valve 3, and the evaporator 4 via pipes PI1 to PI4.
  • the compressor 1 and the condenser 2 are connected to each other by a pipe PI1.
  • the condenser 2 and the pressure regulating valve 3 are connected to each other by a pipe PI2.
  • the pressure regulating valve 3 and the evaporator 4 are connected to each other by a pipe PI3.
  • the evaporator 4 and the compressor 1 are connected to each other by a pipe PI4.
  • the refrigerant circuit 13 is configured such that the refrigerant circulates in the order of the compressor 1, the pipe PI1, the condenser 2, the pipe PI2, the pressure regulating valve 3, the pipe PI3, the evaporator 4, and the pipe PI4. That is, the refrigerant flows through the refrigerant circuit 13 in the order of the compressor 1, the condenser 2, the pressure regulating valve 3, and the evaporator 4.
  • the refrigerant is R32.
  • the amount of refrigerant flowing through the refrigerant circuit 13 is preferably 300 g or more and 500 g or less.
  • the condenser 2 is configured to condense the refrigerant compressed by the compressor 1.
  • the condenser 2 is an air heat exchanger composed of pipes and fins.
  • the pressure regulating valve 3 is configured to depressurize the refrigerant condensed by the condenser 2.
  • the pressure regulating valve 3 has a function as an expansion valve.
  • the pressure regulating valve 3 is a mechanical pressure control valve.
  • the pressure adjustment valve 3 is configured to be able to adjust the flow rate of the refrigerant passing through the pressure adjustment valve 3.
  • the flow rate of the refrigerant passing through the pressure regulating valve 3 is a flow rate per unit time.
  • the evaporator 4 is configured to evaporate the refrigerant decompressed by the pressure regulating valve 3.
  • the evaporator 4 is an air heat exchanger composed of pipes and fins.
  • the condenser blower 5 is configured to adjust the amount of heat exchange between the outdoor air and the refrigerant in the condenser 2.
  • the condenser blower 5 includes a fan 5a and a motor 5b.
  • the motor 5b may be configured to rotate the fan 5a with a variable number of rotations.
  • the motor 5b may be configured to rotate the fan 5a at a constant rotation speed.
  • the evaporator blower 6 is configured to adjust the amount of heat exchange between the indoor air and the refrigerant in the evaporator 4.
  • the evaporator blower 6 includes a fan 6a and a motor 6b.
  • the motor 6b may be configured to rotate the fan 6a in a variable number of rotations.
  • the motor 6b may be configured to rotate the fan 6a at a constant rotation speed.
  • the valve part 34 has a valve body 34a and a valve seat 34b.
  • the valve portion 34 is configured such that the valve opening degree can be adjusted by a gap between the valve body 34a and the valve seat 34b.
  • the valve body 34a is formed in a shaft shape. One end (first end) of the valve body 34 a is connected to the diaphragm 32. The other end (second end) of the valve body 34 a is connected to the spring 35.
  • the valve body 34a is configured to move in the direction indicated by the double arrow A3 in FIG. That is, the valve body 34 a is configured to move in the axial direction of the valve body 34 a by the deformation of the diaphragm 32.
  • valve body 34a connected to the diaphragm 32 moves to the pressure reference chamber S2 side in the axial direction of the valve body 34a.
  • the refrigerant that has flowed into the pressure regulating valve 3 is decompressed by the pressure regulating valve 3 and becomes a low-pressure gas-liquid two-phase refrigerant.
  • the refrigerant depressurized by the pressure regulating valve 3 flows into the evaporator 4 through the pipe PI3.
  • the refrigerant that has flowed into the evaporator 4 exchanges heat with air in the evaporator 4. Specifically, in the evaporator 4, air is cooled by a refrigerant, and the refrigerant becomes a low-pressure gas refrigerant.
  • the refrigerant that has been depressurized in the evaporator 4 to become low-pressure gas flows into the compressor 1 through the pipe PI4.
  • the refrigerant that has flowed into the compressor 1 is compressed again and pressurized, and then discharged from the compressor 1.
  • valve opening degree of the valve part 34 becomes large.
  • the amount of refrigerant flowing through the pressure regulating valve 3 increases, and the amount of refrigerant flowing into the evaporator 4 also increases.
  • superheat degree (SH) becomes small. Therefore, the rise in the discharge temperature of the refrigerant from the compressor 1 is suppressed.
  • the LEV 30, the thermistor 7, and the microcomputer 8 are required to adjust the discharge temperature of the refrigerant from the compressor 1, so that the configuration of the air conditioner 10 is complicated. . Moreover, the manufacturing cost of the air conditioner 10 becomes high. On the other hand, in the air conditioner 10 of this Embodiment, since the discharge temperature from the compressor 1 of a refrigerant
  • the air conditioner 10 according to the second embodiment of the present invention is different in the configuration of the pressure regulating valve 3 from the air conditioner 10 according to the first embodiment.
  • Embodiment 3 FIG.
  • the same reference numerals are given to the same components as those in the first embodiment, and description thereof will not be repeated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Air Conditioning Control Device (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Safety Valves (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

L'invention concerne un climatiseur (10) pourvu d'un circuit de fluide frigorigène (13) et d'un fluide frigorigène. Le circuit de fluide frigorigène (13) comprend un compresseur (1), un condenseur (2), une soupape de réglage de pression (3), et un évaporateur (4). Le fluide frigorigène est R32. La soupape de réglage de pression (3) comprend un trajet d'écoulement (33) à travers lequel le fluide frigorigène s'écoulant depuis le condenseur (2) est amené à s'écouler dans l'évaporateur (4), une chambre de référence de pression (S2) qui est séparée du trajet d'écoulement (33) et qui est remplie de gaz inerte, et une partie de soupape (34) disposée dans le trajet d'écoulement (33). La soupape de réglage de pression (3) peut ajuster le débit du fluide frigorigène s'écoulant à travers le trajet d'écoulement (33) en réglant le degré d'ouverture de soupape de la partie de soupape (34). La partie de soupape (34) fonctionne de manière à augmenter le degré d'ouverture de soupape lorsque la pression à l'intérieur du trajet d'écoulement (33) devient supérieure à la pression à l'intérieur de la chambre de référence de pression (S2), et à diminuer le degré d'ouverture de soupape lorsque la pression à l'intérieur du trajet d'écoulement (33) devient inférieure à la pression à l'intérieur de la chambre de référence de pression (S2).
PCT/JP2016/082119 2016-10-28 2016-10-28 Climatiseur WO2018078808A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US16/313,671 US20200018530A1 (en) 2016-10-28 2016-10-28 Air conditioner
EP16920284.3A EP3534088B1 (fr) 2016-10-28 2016-10-28 Climatiseur
JP2017545775A JP6312943B1 (ja) 2016-10-28 2016-10-28 空気調和機
AU2016427727A AU2016427727B2 (en) 2016-10-28 2016-10-28 Air conditioner
CN201680089229.4A CN109891164A (zh) 2016-10-28 2016-10-28 空调机
KR1020197005898A KR102147693B1 (ko) 2016-10-28 2016-10-28 공기 조화기
PCT/JP2016/082119 WO2018078808A1 (fr) 2016-10-28 2016-10-28 Climatiseur
US17/181,541 US20210180842A1 (en) 2016-10-28 2021-02-22 Air conditioner
US17/181,511 US20210172659A1 (en) 2016-10-28 2021-02-22 Air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/082119 WO2018078808A1 (fr) 2016-10-28 2016-10-28 Climatiseur

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US16/313,671 A-371-Of-International US20200018530A1 (en) 2016-10-28 2016-10-28 Air conditioner
US17/181,511 Continuation US20210172659A1 (en) 2016-10-28 2021-02-22 Air conditioner
US17/181,541 Continuation US20210180842A1 (en) 2016-10-28 2021-02-22 Air conditioner

Publications (1)

Publication Number Publication Date
WO2018078808A1 true WO2018078808A1 (fr) 2018-05-03

Family

ID=61968188

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/082119 WO2018078808A1 (fr) 2016-10-28 2016-10-28 Climatiseur

Country Status (7)

Country Link
US (3) US20200018530A1 (fr)
EP (1) EP3534088B1 (fr)
JP (1) JP6312943B1 (fr)
KR (1) KR102147693B1 (fr)
CN (1) CN109891164A (fr)
AU (1) AU2016427727B2 (fr)
WO (1) WO2018078808A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11378288B2 (en) * 2019-01-31 2022-07-05 Samsung Electronics Co., Ltd. Outdoor unit of airconditioner

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JPH08121879A (ja) * 1994-10-26 1996-05-17 Mitsubishi Heavy Ind Ltd 冷凍・空調装置
JPH09264622A (ja) * 1996-01-25 1997-10-07 Denso Corp 圧力制御弁と蒸気圧縮式冷凍サイクル
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JP2009243607A (ja) * 2008-03-31 2009-10-22 Fuji Koki Corp 圧力制御弁
JP2013032874A (ja) * 2011-08-02 2013-02-14 Saginomiya Seisakusho Inc 温度膨張弁
JP2015215127A (ja) * 2014-05-12 2015-12-03 パナソニックIpマネジメント株式会社 冷凍装置
JP2016114274A (ja) * 2014-12-12 2016-06-23 東芝キヤリア株式会社 空気調和機及び冷凍サイクルの制御方法

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Title
See also references of EP3534088A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11378288B2 (en) * 2019-01-31 2022-07-05 Samsung Electronics Co., Ltd. Outdoor unit of airconditioner

Also Published As

Publication number Publication date
KR20190032560A (ko) 2019-03-27
AU2016427727B2 (en) 2019-10-10
US20210172659A1 (en) 2021-06-10
US20210180842A1 (en) 2021-06-17
CN109891164A (zh) 2019-06-14
EP3534088A1 (fr) 2019-09-04
EP3534088A4 (fr) 2019-10-30
KR102147693B1 (ko) 2020-08-25
EP3534088B1 (fr) 2022-03-02
US20200018530A1 (en) 2020-01-16
AU2016427727A1 (en) 2019-02-21
JP6312943B1 (ja) 2018-04-18
JPWO2018078808A1 (ja) 2018-11-01

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