[go: up one dir, main page]

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
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2007/074812
Other languages
French (fr)
Japanese (ja)
Inventor
Yoshio Ueno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
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
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

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 Ceased 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 Ceased WO2008081771A1 (en) 2006-12-28 2007-12-25 Refrigerating apparatus

Country Status (5)

Country Link
EP (2) EP2103888B1 (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
JP5423083B2 (en) 2009-03-19 2014-02-19 ダイキン工業株式会社 Air conditioner
JP2010223457A (en) * 2009-03-19 2010-10-07 Daikin Ind Ltd Air conditioner
WO2010106815A1 (en) 2009-03-19 2010-09-23 ダイキン工業株式会社 Air conditioner
JP5177281B2 (en) 2009-03-19 2013-04-03 ダイキン工業株式会社 Air conditioner
EP2410257B1 (en) 2009-03-19 2018-08-29 Daikin Industries, Ltd. Air conditioning device
KR20110092147A (en) * 2010-02-08 2011-08-17 삼성전자주식회사 Air Conditioner and Control Method
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3858297B2 (en) * 1996-01-25 2006-12-13 株式会社デンソー Pressure control valve and vapor compression refrigeration cycle
JP2000234814A (en) 1999-02-17 2000-08-29 Aisin Seiki Co Ltd Vapor compression refrigeration equipment
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
EP2103888A4 (en) 2012-06-06
JP4386071B2 (en) 2009-12-16
ES2680501T3 (en) 2018-09-07
EP2543939A2 (en) 2013-01-09
EP2543939A3 (en) 2014-04-23
EP2103888A1 (en) 2009-09-23
JP2008164226A (en) 2008-07-17
TR201810756T4 (en) 2018-08-27
EP2103888B1 (en) 2018-07-11

Similar Documents

Publication Publication Date Title
WO2008081771A1 (en) Refrigerating apparatus
WO2007023130A3 (en) Systems and methods for cooling electronics components employing vapor compression refrigeration
MX2013007636A (en) Refrigeration system controlled by refrigerant quality within evaporator.
TWI522585B (en) Refrigeration unit and freezer unit
WO2010036614A3 (en) Compressor discharge control on a transport refrigeration system
WO2009052369A3 (en) Integrated refrigerating/freezing system and defrost method
EP2244040A3 (en) Flashgas removal from a receiver in a refrigeration circuit
WO2012000501A3 (en) A method for operating a vapour compression system using a subcooling value
WO2009041068A1 (en) Refrigeration device
EP1462740A3 (en) Refrigerator
CA2434422A1 (en) High-speed defrost refrigeration system
AU2015201553B2 (en) Rotary Compressor
WO2009028841A3 (en) Refrigerator
WO2003038352A1 (en) Refrigerator
WO2008108055A1 (en) Refrigerating device
EP2196746A3 (en) Refrigeration apparatus
ATE503158T1 (en) COOLING CIRCUIT AND METHOD FOR OPERATING A COOLING CIRCUIT
MY144069A (en) Process for sub-cooling an lng stream obtained by cooling by means of a first refrigeration cycle, and associated installation
TW200619573A (en) Refrigeration system
JPH08189753A (en) Refrigerator
WO2006098808A3 (en) Dual mode compressor with automatic compression ratio adjustment for adapting to multiple operating conditions
WO2007042662A3 (en) Method for treating a liquefied natural gas stream obtained by cooling using a first refrigerating cycle and related installation
JP2013024538A (en) Refrigeration unit
TW200718910A (en) Refrigeration apparatus
WO2008060041A3 (en) Controlling method of air conditioner

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07860041

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2007860041

Country of ref document: EP