FI4030115T3 - Outdoor unit and refrigeration cycle device - Google Patents

Outdoor unit and refrigeration cycle device Download PDF

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Publication number
FI4030115T3
FI4030115T3 FIEP19944675.8T FI19944675T FI4030115T3 FI 4030115 T3 FI4030115 T3 FI 4030115T3 FI 19944675 T FI19944675 T FI 19944675T FI 4030115 T3 FI4030115 T3 FI 4030115T3
Authority
FI
Finland
Prior art keywords
outdoor unit
threshold value
degree
pressure
compressor
Prior art date
Application number
FIEP19944675.8T
Other languages
Finnish (fi)
Inventor
Tomotaka Ishikawa
Yusuke Arii
Motoshi Hayasaka
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of FI4030115T3 publication Critical patent/FI4030115T3/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
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B45/00Arrangements for charging or discharging refrigerant
    • 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
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/005Arrangement or mounting of control or safety devices of safety devices
    • 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
    • F25B2500/00Problems to be solved
    • F25B2500/07Exceeding a certain pressure value in a refrigeration component or 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
    • F25B2600/00Control issues
    • F25B2600/25Control of valves
    • F25B2600/2523Receiver 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
    • F25B2700/193Pressures of the compressor
    • F25B2700/1931Discharge pressures
    • 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
    • F25B2700/193Pressures of the compressor
    • F25B2700/1933Suction pressures
    • 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
    • F25B2700/21Temperatures
    • F25B2700/2115Temperatures of a compressor or the drive means therefor
    • F25B2700/21152Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
    • 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
    • F25B2700/21Temperatures
    • F25B2700/2116Temperatures of a condenser
    • F25B2700/21163Temperatures of a condenser of the refrigerant at the outlet of the condenser

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Claims (6)

PatenttivaatimuksetPatent Claims 1. Jäähdytyssyklilaitteen (1; 1A) ulkoyksikkö (2; 2A) konfiguroituna kierrättämään jäähdytysainetta ulkoyksikön ja kuormayksikön (3) kytkettynä ul- koyksikköön välillä, joka ulkoyksikkö käsittää: kompressorin (10) konfiguroituna kompressoimaan jäähdytysainet- ta; kondensoijan (20) konfiguroituna kondensoimaan jäähdytysaineen ulostulo kompressorilta; ja injektiopiirin (70-73, 91-95) konfiguroituna palauttamaan osa jäähdy- tysaineesta kondensoijan ulostulopuolella kompressoriin ilman kulkemista kuormayksikön läpi, injektiopiirin sisältäessä ekspansioventtiilin (70) tuotettuna eräälle ensimmäiselle putkelle (91) haaroitettuna kondensoijan ulostulopuolelta, vastaanottimen (71) tuotettuna ekspansioventtiilin matalan paineen puolella ja konfiguroituna keräämään jäähdytysainetta kaasunesteen kak- sifaasitilassa, ja virtausohjausventtiilin (72; 75) tuotettuna eräälle toiselle putkelle (93; 95) alavirtaan vastaanottimesta, ulkoyksikön edelleen käsittäessä ohjaimen (100; 100A) konfiguroi- tuna ohjaamaan ekspansioventtiiliä ja virtausohjausventtiiliä, kun jäähdytysaineen ulostulon paine kompressorilta ylittää erään ensimmäisen kynnysarvon, ohjain on konfiguroitu kasvattamaan ekspansio- venttiilin avauksen astetta ja kasvattamaan jäähdytysaineen kaasuvirtauksen suhdetta palautettuna vastaanottimelta kompressorille säätämällä virtausoh- jausventtiilin avauksen astetta enemmän kuin silloin kun paine on yhtä suuri tai vähemmän kuin ensimmäinen kynnysarvo.1. The outdoor unit (2; 2A) of the refrigeration cycle device (1; 1A) configured to circulate coolant between the outdoor unit and the load unit (3) connected to the outdoor unit, which outdoor unit comprises: a compressor (10) configured to compress the coolant; a condenser (20) configured to condense refrigerant output from the compressor; and the injection circuit (70-73, 91-95) configured to return part of the refrigerant at the outlet side of the condenser to the compressor without passing through the load unit, the injection circuit including an expansion valve (70) produced by a first pipe (91) branched from the outlet side of the condenser, a receiver (71) produced by the low pressure of the expansion valve side and configured to collect refrigerant in gas-liquid two-phase mode, and produced by the flow control valve (72; 75) to another pipe (93; 95) downstream from the receiver, the outdoor unit further comprising a controller (100; 100A) configured to control the expansion valve and the flow control valve when the refrigerant outlet pressure from the compressor exceeds a first threshold value, the controller is configured to increase the degree of opening of the expansion valve and to increase the ratio of refrigerant gas flow returned from the receiver to the compressor by adjusting the degree of opening of the flow control valve more than when the pressure is equal to or less than the first threshold value. 2. Patenttivaatimuksen 1 mukainen jäähdytyssyklilaitteen ulkoyksik- kö, jossa kun jäähdytysaineen ulostulon lämpötila kompressorilta ylittää erään toisen kynnysarvon tapauksessa, jossa paine ylittää ensimmäisen kynnysar- von, ohjaaja ylläpitää virtausohjausventtiilin avauksen asteen.2. The outdoor unit of the cooling cycle device according to claim 1, where when the temperature of the coolant outlet from the compressor exceeds a second threshold value in the case where the pressure exceeds the first threshold value, the controller maintains the degree of opening of the flow control valve. 3. Patenttivaatimuksen 1 tai 2 mukainen jäähdytyssyklilaitteen (1) ulkoyksikkö (2), jossa toinen putki on putki (93) konfiguroituna vapauttamaan nestejäähdy- tysainetta vastaanottimesta, ja kun paine ylittää ensimmäisen kynnysarvon, ohjain (100) pienentää virtausohjausventtiilin (72) avauksen asteen pienemmäksi kuin jos paine on yhtä suuri tai pienempi kuin ensimmäinen kynnysarvo.3. The outdoor unit (2) of the cooling cycle device (1) according to claim 1 or 2, wherein the second pipe is a pipe (93) configured to release liquid coolant from the receiver, and when the pressure exceeds the first threshold value, the controller (100) reduces the degree of opening of the flow control valve (72) to a smaller value than if the pressure is equal to or less than the first threshold value. 4. Patenttivaatimuksen 1 tai 2 mukainen jäähdytyssyklilaitteen (1A) ulkoyksikkö (2A), jossa toinen putki on putki (95) konfiguroituna vapauttamaan kaasujääh- dytysaineen vastaanottimesta, ja kun paine ylittää ensimmäisen kynnysarvon, ohjain (100A) kasvat- taa virtausohjausventtiilin (75) avauksen asteen suuremmaksi kuin jos paine on yhtä suuri tai pienempi kuin ensimmäinen kynnysarvo.4. The outdoor unit (2A) of the refrigeration cycle device (1A) according to claim 1 or 2, wherein the second pipe is a pipe (95) configured to release gas refrigerant from the receiver, and when the pressure exceeds the first threshold value, the controller (100A) increases the opening of the flow control valve (75) a degree higher than if the pressure is equal to or lower than the first threshold value. 5. Minkä tahansa patenttivaatimuksen 1-4 mukainen jäähdytyssykli- laitteen ulkoyksikkö, jossa kun paine on yhtä suuri tai pienempi kuin ensimmäinen kynnysarvo, ohjain säätää ekspansioventtiilin avauksen asteen niin, että jäähdytysai- neen ulostulon lämpötila kompressorilta putoaa erään ensimmäisen kohdealu- een sisään, ja säätää virtausohjausventtiilin avauksen asteen niin, että jäähdyty- saineen, joka kulkee kondensoijan läpi, alijäähdytyksen aste putoaa erään toi- sen kohdealueen sisään.5. The outdoor unit of the cooling cycle device according to any one of claims 1-4, where when the pressure is equal to or lower than the first threshold value, the controller adjusts the degree of opening of the expansion valve so that the temperature of the coolant outlet from the compressor falls within a first target area, and adjusts the degree of opening of the flow control valve so that the degree of subcooling of the refrigerant passing through the condenser falls within another target area. 6. Jäähdytyssyklilaite (1; 1A), käsittäen: minkä tahansa patenttivaatimuksen 1-5 mukaisen ulkoyksikön (2; 2A); ja kuormayksikön (3) kytkettynä ulkoyksikköön ja konfiguroituna vas- taanottamaan jäähdytysaine ulkoyksiköstä ja antamaan ulos jäähdytysaine ul- koyksiköstä.6. Refrigeration cycle device (1; 1A), comprising: an outdoor unit (2; 2A) according to any one of claims 1-5; and the load unit (3) connected to the outdoor unit and configured to receive the coolant from the outdoor unit and output the coolant from the outdoor unit.
FIEP19944675.8T 2019-09-09 2019-09-09 Outdoor unit and refrigeration cycle device FI4030115T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/035371 WO2021048899A1 (en) 2019-09-09 2019-09-09 Outdoor unit and refrigeration cycle device

Publications (1)

Publication Number Publication Date
FI4030115T3 true FI4030115T3 (en) 2023-11-20

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ID=74866215

Family Applications (1)

Application Number Title Priority Date Filing Date
FIEP19944675.8T FI4030115T3 (en) 2019-09-09 2019-09-09 Outdoor unit and refrigeration cycle device

Country Status (7)

Country Link
EP (1) EP4030115B1 (en)
JP (1) JP7154426B2 (en)
CN (1) CN114341568B (en)
DK (1) DK4030115T3 (en)
ES (1) ES2964740T3 (en)
FI (1) FI4030115T3 (en)
WO (1) WO2021048899A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117321352A (en) 2021-05-25 2023-12-29 三菱电机株式会社 Refrigeration cycle device
JPWO2022249289A1 (en) * 2021-05-25 2022-12-01

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668755A (en) * 1979-11-07 1981-06-09 Mitsubishi Heavy Ind Ltd Refrigerating cycle
JPS59157446A (en) * 1983-02-22 1984-09-06 松下電器産業株式会社 Refrigeration cycle device
JPS59175961U (en) 1983-05-13 1984-11-24 株式会社東芝 air conditioner
JPS6490961A (en) * 1987-09-30 1989-04-10 Daikin Ind Ltd Refrigeration circuit
JP3623090B2 (en) * 1997-11-20 2005-02-23 松下電器産業株式会社 Control device for refrigeration cycle having injection function
JP2006170500A (en) * 2004-12-14 2006-06-29 Mitsubishi Heavy Ind Ltd Air conditioner and its operating method
CN200996753Y (en) * 2006-12-26 2007-12-26 海信集团有限公司 Refrigerating system of intermediate air-compensating compressor with economizer
WO2010036480A2 (en) * 2008-09-29 2010-04-01 Carrier Corporation Flash tank economizer cycle control
JP2010127531A (en) * 2008-11-27 2010-06-10 Mitsubishi Electric Corp Refrigeration air conditioner
US10072884B2 (en) * 2010-03-08 2018-09-11 Carrier Corporation Defrost operations and apparatus for a transport refrigeration system
WO2011135805A1 (en) * 2010-04-28 2011-11-03 パナソニック株式会社 Refrigeration cycle device
JP5668755B2 (en) 2010-06-18 2015-02-12 コニカミノルタ株式会社 FUEL CELL DEVICE AND FUEL CELL SYSTEM INCLUDING THE SAME
KR101908874B1 (en) * 2014-09-30 2018-10-16 미쓰비시덴키 가부시키가이샤 Refrigeration cycle device
CN106766293B (en) * 2016-12-02 2019-11-19 珠海格力电器股份有限公司 A kind of air-conditioning system with enthalpy increased through vapor injection and control method thereof preventing refrigerant return
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CN111023605A (en) * 2019-12-20 2020-04-17 北京工业大学 High-pressure-ratio refrigeration compressor flow-dividing gas-liquid co-inlet gas supplementing port cooperative cooling method

Also Published As

Publication number Publication date
EP4030115A4 (en) 2022-09-07
JP7154426B2 (en) 2022-10-17
ES2964740T3 (en) 2024-04-09
WO2021048899A1 (en) 2021-03-18
EP4030115B1 (en) 2023-10-25
CN114341568A (en) 2022-04-12
DK4030115T3 (en) 2023-11-27
CN114341568B (en) 2023-07-18
JPWO2021048899A1 (en) 2021-03-18
EP4030115A1 (en) 2022-07-20

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