WO2008081771A1 - Refrigerating apparatus - Google Patents

Refrigerating apparatus Download PDF

Info

Publication number
WO2008081771A1
WO2008081771A1 PCT/JP2007/074812 JP2007074812W WO2008081771A1 WO 2008081771 A1 WO2008081771 A1 WO 2008081771A1 JP 2007074812 W JP2007074812 W JP 2007074812W WO 2008081771 A1 WO2008081771 A1 WO 2008081771A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
supercritical
compressor
discharge pressure
refrigerant
Prior art date
Application number
PCT/JP2007/074812
Other languages
French (fr)
Japanese (ja)
Inventor
Yoshio Ueno
Original Assignee
Daikin Industries, Ltd.
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 Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Priority to EP07860041.8A priority Critical patent/EP2103888B1/en
Priority to ES07860041.8T priority patent/ES2680501T3/en
Publication of WO2008081771A1 publication Critical patent/WO2008081771A1/en

Links

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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • 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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • 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
    • F25B2313/005—Outdoor unit expansion valves
    • 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
    • F25B2313/029—Control issues
    • F25B2313/0294—Control issues related to the outdoor fan, e.g. controlling speed
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/06—Details of flow restrictors or expansion valves
    • F25B2341/063—Feed forward expansion valves
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/19—Calculation of parameters
    • 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
    • F25B2600/00—Control issues
    • F25B2600/17—Control issues by controlling the pressure of the condenser
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2513—Expansion valves
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/193—Pressures of the compressor
    • F25B2700/1931—Discharge pressures
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2106—Temperatures of fresh outdoor air
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21174—Temperatures of an evaporator of the refrigerant at the inlet of the evaporator

Abstract

The noise produced during operation is reduced by reducing occurrence of flow sound of refrigerant. A refrigerating apparatus (1) uses a supercritical refrigerant and operates in range of a high pressure higher than the critical pressure. The refrigerating apparatus (1) comprises a compressor (21), gas coolers (23, 31), expansion mechanisms (V2, V5), evaporators (31, 23), discharge pressure detecting means (P1, T2, T3), and a control section (5). The compressor compresses a supercritical refrigerant. The gas coolers cool the supercritical refrigerant compressed by the compressor. The expansion mechanisms reduce the pressure of the supercritical refrigerant. The evaporators evaporate the supercritical refrigerant the pressure of which has been reduced by the expansion mechanisms. The discharge pressure detecting means detect the discharge pressure of the compressor. The control section makes a control to adjust the openings of the expansion mechanisms so that the discharge pressure may be above the supercritical pressure when the discharge pressure is below the supercritical pressure when the refrigerator is started.
PCT/JP2007/074812 2006-12-28 2007-12-25 Refrigerating apparatus WO2008081771A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07860041.8A EP2103888B1 (en) 2006-12-28 2007-12-25 Refrigerating apparatus
ES07860041.8T ES2680501T3 (en) 2006-12-28 2007-12-25 Cooling device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-354392 2006-12-28
JP2006354392A JP4386071B2 (en) 2006-12-28 2006-12-28 Refrigeration equipment

Publications (1)

Publication Number Publication Date
WO2008081771A1 true WO2008081771A1 (en) 2008-07-10

Family

ID=39588454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/074812 WO2008081771A1 (en) 2006-12-28 2007-12-25 Refrigerating apparatus

Country Status (5)

Country Link
EP (2) EP2543939A3 (en)
JP (1) JP4386071B2 (en)
ES (1) ES2680501T3 (en)
TR (1) TR201810756T4 (en)
WO (1) WO2008081771A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9046275B2 (en) 2009-03-19 2015-06-02 Daikin Industries, Ltd. Air conditioner with electromagnetic induction heating unit
JP2010223457A (en) * 2009-03-19 2010-10-07 Daikin Ind Ltd Air conditioner
JP5423083B2 (en) 2009-03-19 2014-02-19 ダイキン工業株式会社 Air conditioner
CN102356283B (en) 2009-03-19 2014-04-16 大金工业株式会社 Air conditioning device
KR101246448B1 (en) 2009-03-19 2013-03-22 다이킨 고교 가부시키가이샤 Air conditioner
KR20110092147A (en) * 2010-02-08 2011-08-17 삼성전자주식회사 Air conditioner and control method thereof
CN104896750A (en) * 2015-04-10 2015-09-09 广东美的暖通设备有限公司 A trans-critical CO2 heat pump water heater pressure control method and system
JP6998043B2 (en) * 2016-12-21 2022-01-18 アイリスオーヤマ株式会社 refrigerator
WO2018117178A1 (en) * 2016-12-21 2018-06-28 アイリスオーヤマ株式会社 Refrigerator
JP6902390B2 (en) * 2017-04-27 2021-07-14 日立ジョンソンコントロールズ空調株式会社 Refrigeration cycle equipment
JP6716037B2 (en) * 2017-07-04 2020-07-01 三菱電機株式会社 Air conditioning system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002144860A (en) * 2000-11-08 2002-05-22 Mitsubishi Heavy Ind Ltd Vehicular air conditioner
JP2003028522A (en) 2001-07-16 2003-01-29 Zexel Valeo Climate Control Corp Refrigerating cycle
JP2003042574A (en) * 2001-08-01 2003-02-13 Denso Corp Vapor compression refrigerator
JP2005351529A (en) * 2004-06-09 2005-12-22 Denso Corp Pressure control valve and vapor compression refrigerating cycle
WO2006087005A1 (en) 2005-02-18 2006-08-24 Carrier Corporation Method for controlling high-pressure in an intermittently supercritically operating refrigeration circuit
DE102006003827A1 (en) 2005-01-28 2006-08-24 Denso Corp., Kariya Hot water supplier with heat pump for hot water has coolant temperature at compressor output not above preset temperature

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000234814A (en) 1999-02-17 2000-08-29 Aisin Seiki Co Ltd Vapor compressed refrigerating device
US20060230773A1 (en) * 2005-04-14 2006-10-19 Carrier Corporation Method for determining optimal coefficient of performance in a transcritical vapor compression system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002144860A (en) * 2000-11-08 2002-05-22 Mitsubishi Heavy Ind Ltd Vehicular air conditioner
JP2003028522A (en) 2001-07-16 2003-01-29 Zexel Valeo Climate Control Corp Refrigerating cycle
JP2003042574A (en) * 2001-08-01 2003-02-13 Denso Corp Vapor compression refrigerator
JP2005351529A (en) * 2004-06-09 2005-12-22 Denso Corp Pressure control valve and vapor compression refrigerating cycle
DE102006003827A1 (en) 2005-01-28 2006-08-24 Denso Corp., Kariya Hot water supplier with heat pump for hot water has coolant temperature at compressor output not above preset temperature
WO2006087005A1 (en) 2005-02-18 2006-08-24 Carrier Corporation Method for controlling high-pressure in an intermittently supercritically operating refrigeration circuit

Also Published As

Publication number Publication date
TR201810756T4 (en) 2018-08-27
EP2103888A1 (en) 2009-09-23
EP2543939A2 (en) 2013-01-09
EP2103888A4 (en) 2012-06-06
EP2103888B1 (en) 2018-07-11
ES2680501T3 (en) 2018-09-07
JP4386071B2 (en) 2009-12-16
EP2543939A3 (en) 2014-04-23
JP2008164226A (en) 2008-07-17

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