EP1577622A3 - Refrigerating machine - Google Patents

Refrigerating machine Download PDF

Info

Publication number
EP1577622A3
EP1577622A3 EP05005611A EP05005611A EP1577622A3 EP 1577622 A3 EP1577622 A3 EP 1577622A3 EP 05005611 A EP05005611 A EP 05005611A EP 05005611 A EP05005611 A EP 05005611A EP 1577622 A3 EP1577622 A3 EP 1577622A3
Authority
EP
European Patent Office
Prior art keywords
gas
liquid separator
compressor
intermediate pressure
pressure portion
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.)
Withdrawn
Application number
EP05005611A
Other languages
German (de)
French (fr)
Other versions
EP1577622A2 (en
Inventor
Satoshi Imai
Akira Sugawara
Hiroshi Mukaiyama
Etsushi Nagae
Hiroyuki Itsuki
Kazuaki Mizukami
Ichiro Kamimura
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co 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
Priority claimed from JP2004079341A external-priority patent/JP2005265316A/en
Priority claimed from JP2004079342A external-priority patent/JP4115414B2/en
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Publication of EP1577622A2 publication Critical patent/EP1577622A2/en
Publication of EP1577622A3 publication Critical patent/EP1577622A3/en
Withdrawn legal-status Critical Current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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
    • 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
    • F25B1/00—Compression machines, plants or systems with non-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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/04—Preventing the formation of frost or condensate
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/23—Separators
    • 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
    • F25B2600/2509—Economiser 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2511—Evaporator distribution 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
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0682—Two or more fans
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/04—Refrigerators with a horizontal mullion

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Compressor (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

A refrigerating machine is equipped with a compressor 1, a radiator 2, a pressure-reducing device 3, a gas-liquid separator 4, a unit for introducing the gas refrigerant separated in gas-liquid separator 4 into an intermediate pressure portion of the compressor, and a low pressure side circuit 9 in which liquid refrigerant separated in the gas-liquid separator is circulated. The low pressure side circuit 9 is provided with a heat absorbing unit 10 which selectively functions in different temperature zones. When the heat absorbing unit 10 is made to function in a high temperature zone, the gas refrigerant separated in the gas-liquid separator 4 is inhibited from being introduced into the intermediate pressure portion of the compressor 1 is inhibited, or allowed to be introduced into another intermediate pressure portion which is lower in pressure than the intermediate pressure portion.
EP05005611A 2004-03-19 2005-03-15 Refrigerating machine Withdrawn EP1577622A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2004079341 2004-03-19
JP2004079341A JP2005265316A (en) 2004-03-19 2004-03-19 Refrigeration device
JP2004079342 2004-03-19
JP2004079342A JP4115414B2 (en) 2004-03-19 2004-03-19 Refrigeration equipment

Publications (2)

Publication Number Publication Date
EP1577622A2 EP1577622A2 (en) 2005-09-21
EP1577622A3 true EP1577622A3 (en) 2007-01-31

Family

ID=34840257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05005611A Withdrawn EP1577622A3 (en) 2004-03-19 2005-03-15 Refrigerating machine

Country Status (4)

Country Link
US (1) US20050204773A1 (en)
EP (1) EP1577622A3 (en)
KR (1) KR100642709B1 (en)
CN (1) CN100338409C (en)

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JP2006275495A (en) * 2005-03-30 2006-10-12 Sanyo Electric Co Ltd Refrigerating device and refrigerator
JP4640142B2 (en) * 2005-11-30 2011-03-02 ダイキン工業株式会社 Refrigeration equipment
JP2007192433A (en) * 2006-01-17 2007-08-02 Daikin Ind Ltd Gas-liquid separator, and refrigerating device comprising the same
WO2007119372A1 (en) * 2006-03-29 2007-10-25 Sanyo Electric Co., Ltd. Freezing apparatus
KR100761357B1 (en) * 2006-07-21 2007-09-27 주식회사 대우일렉트로닉스 Cold air circulating structure of refrigerator having temperatureswitching room and the methode of the same
DE102007003989A1 (en) * 2007-01-26 2008-07-31 Grasso Gmbh Refrigeration Technology CO2 refrigeration system with oil-immersed screw compressors in two-stage arrangement
EP2165124A4 (en) 2007-05-14 2013-05-29 Carrier Corp Refrigerant vapor compression system with flash tank economizer
JP2009014210A (en) * 2007-06-29 2009-01-22 Daikin Ind Ltd Refrigerating device
ES2608404T3 (en) * 2007-11-13 2017-04-10 Carrier Corporation Cooling system and method for cooling
CN103216964B (en) * 2007-11-13 2016-01-20 开利公司 Refrigeration system and the method for freezing
EP2229562B1 (en) * 2008-01-17 2018-09-05 Carrier Corporation Carbon dioxide refrigerant vapor compression system
US20110225999A1 (en) * 2008-06-03 2011-09-22 Panasonic Corporation Refrigeration cycle apparatus
CN102003827B (en) * 2010-11-15 2012-02-08 思安新能源股份有限公司 Absorption type power and refrigeration cogeneration circulatory system and absorption type power and refrigeration cogeneration method
JP5847626B2 (en) * 2012-03-26 2016-01-27 ハイアールアジア株式会社 Refrigerator and operation method thereof
CN102654324A (en) * 2012-05-24 2012-09-05 东华大学 Twin-stage compression heat pump system with hot gas bypass defrosting device
US9733008B2 (en) * 2013-03-13 2017-08-15 Whirlpool Corporation Air flow design for controlling temperature in a refrigerator compartment
US10145589B2 (en) * 2013-03-15 2018-12-04 Whirlpool Corporation Net heat load compensation control method and appliance for temperature stability
DE102014217673A1 (en) * 2014-09-04 2016-03-10 BSH Hausgeräte GmbH Refrigerating appliance and chiller for it
DE102015007359A1 (en) * 2014-10-29 2016-05-04 Liebherr-Hausgeräte Ochsenhausen GmbH Fridge and / or freezer
US10465962B2 (en) * 2015-11-16 2019-11-05 Emerson Climate Technologies, Inc. Compressor with cooling system
US11320190B2 (en) * 2016-05-06 2022-05-03 Illinois Tool Works Inc. Refrigerator diverter valve using fluidic circuit
DE102016222948A1 (en) * 2016-11-21 2018-05-24 BSH Hausgeräte GmbH Refrigeration unit with humidity-optimized storage compartment
KR102456236B1 (en) 2017-12-13 2022-10-19 엘지전자 주식회사 Refrigerator
US11585608B2 (en) 2018-02-05 2023-02-21 Emerson Climate Technologies, Inc. Climate-control system having thermal storage tank
US11149971B2 (en) 2018-02-23 2021-10-19 Emerson Climate Technologies, Inc. Climate-control system with thermal storage device
WO2019185121A1 (en) * 2018-03-27 2019-10-03 Bitzer Kühlmaschinenbau Gmbh Refrigeration system
CN108444138A (en) * 2018-04-17 2018-08-24 山东美琳达再生能源开发有限公司 A kind of Two-stage Compression low-temperature air source heat pump unit and method with refrigerating function
WO2019222394A1 (en) 2018-05-15 2019-11-21 Emerson Climate Technologies, Inc. Climate-control system with ground loop
US11346583B2 (en) 2018-06-27 2022-05-31 Emerson Climate Technologies, Inc. Climate-control system having vapor-injection compressors
CN109539629A (en) * 2018-11-15 2019-03-29 珠海格力电器股份有限公司 A kind of heat-pump apparatus

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US6058726A (en) * 1996-05-30 2000-05-09 Sankyo Seiki Mfg. Co., Ltd. Damper
EP1207359A2 (en) * 2000-11-15 2002-05-22 Carrier Corporation High pressure regulation in a transcritical vapor compression cycle
EP1241417A1 (en) * 2001-03-16 2002-09-18 Copeland Corporation Digital controller for scroll compressor condensing unit
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US5056329A (en) * 1990-06-25 1991-10-15 Battelle Memorial Institute Heat pump systems
US6058726A (en) * 1996-05-30 2000-05-09 Sankyo Seiki Mfg. Co., Ltd. Damper
EP1207359A2 (en) * 2000-11-15 2002-05-22 Carrier Corporation High pressure regulation in a transcritical vapor compression cycle
EP1241417A1 (en) * 2001-03-16 2002-09-18 Copeland Corporation Digital controller for scroll compressor condensing unit
EP1577620A2 (en) * 2004-03-15 2005-09-21 SANYO ELECTRIC Co., Ltd. Refrigerating machine

Also Published As

Publication number Publication date
KR20060043489A (en) 2006-05-15
CN100338409C (en) 2007-09-19
US20050204773A1 (en) 2005-09-22
KR100642709B1 (en) 2006-11-10
EP1577622A2 (en) 2005-09-21
CN1670450A (en) 2005-09-21

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