EP1862749A3 - Vapor Compression Refrigeration Cycle - Google Patents

Vapor Compression Refrigeration Cycle Download PDF

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Publication number
EP1862749A3
EP1862749A3 EP07108423A EP07108423A EP1862749A3 EP 1862749 A3 EP1862749 A3 EP 1862749A3 EP 07108423 A EP07108423 A EP 07108423A EP 07108423 A EP07108423 A EP 07108423A EP 1862749 A3 EP1862749 A3 EP 1862749A3
Authority
EP
European Patent Office
Prior art keywords
refrigerant
small amount
oil containing
oil
pressure
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Withdrawn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
EP07108423A
Other languages
German (de)
French (fr)
Other versions
EP1862749A2 (en
Inventor
Yuuichi Matsumoto
Masato Tsuboi
Kenichi Suzuki
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.)
Sanden Corp
Original Assignee
Sanden 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 Sanden Corp filed Critical Sanden Corp
Publication of EP1862749A2 publication Critical patent/EP1862749A2/en
Publication of EP1862749A3 publication Critical patent/EP1862749A3/en
Withdrawn legal-status Critical Current

Links

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
    • F25B9/00Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008Compression 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
    • 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
    • F25B40/00Subcoolers, desuperheaters or superheaters
    • 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
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/02Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0426Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element
    • F28D1/0443Combination of units extending one beside or one above the other
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0008Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium
    • F28D7/0025Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one medium being in heat conductive contact with the conduits for the other medium the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/103Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
    • 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
    • F25B2309/00Gas cycle refrigeration machines
    • F25B2309/06Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure
    • 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
    • F25B2400/00General 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
    • F25B2400/13Economisers
    • 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
    • F25B2500/18Optimization, e.g. high integration of refrigeration components
    • 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
    • F25B31/00Compressor arrangements
    • F25B31/002Lubrication
    • F25B31/004Lubrication oil recirculating arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/0073Gas coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F2009/0285Other particular headers or end plates
    • F28F2009/0287Other particular headers or end plates having passages for different heat exchange media

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

A vapor compression refrigerating cycle (10) has a compressor (1), a radiator (2), an oil separator (3) for separating the refrigerant radiated by the radiator (2) into refrigerant and oil containing a small amount of refrigerant, a first pressure reducer (6), an evaporator (7), and an accumulator (8), wherein a second pressure reducer (5) for reducing a pressure of the oil containing a small amount of refrigerant separated by the oil separator (3) and an inside heat exchanger (4) for exchanging heat between the refrigerant separated by the oil separator (3) and the oil containing a small amount of refrigerant reduced in pressure by the second pressure reducer (5) are provided, and the oil containing a small amount of refrigerant is injected into a midway of the compression step of the compressor (1) after being passed through the inside heat exchanger (4). Utilizing the oil containing a small amount of refrigerant separated by the oil separator, the performance of the refrigerating cycle is improved, and it becomes possible to integrate respective equipment with each other, and while the refrigeration ability can be increased, problems on space and weight can be solved.
EP07108423A 2006-05-30 2007-05-17 Vapor Compression Refrigeration Cycle Withdrawn EP1862749A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006149628A JP4787070B2 (en) 2006-05-30 2006-05-30 Refrigeration cycle

Publications (2)

Publication Number Publication Date
EP1862749A2 EP1862749A2 (en) 2007-12-05
EP1862749A3 true EP1862749A3 (en) 2008-12-24

Family

ID=38514187

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07108423A Withdrawn EP1862749A3 (en) 2006-05-30 2007-05-17 Vapor Compression Refrigeration Cycle

Country Status (2)

Country Link
EP (1) EP1862749A3 (en)
JP (1) JP4787070B2 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7975506B2 (en) 2008-02-20 2011-07-12 Trane International, Inc. Coaxial economizer assembly and method
US7856834B2 (en) 2008-02-20 2010-12-28 Trane International Inc. Centrifugal compressor assembly and method
US9353765B2 (en) 2008-02-20 2016-05-31 Trane International Inc. Centrifugal compressor assembly and method
US8037713B2 (en) 2008-02-20 2011-10-18 Trane International, Inc. Centrifugal compressor assembly and method
JP5180680B2 (en) * 2008-05-20 2013-04-10 サンデン株式会社 Refrigeration cycle
JP5119060B2 (en) * 2008-06-27 2013-01-16 サンデン株式会社 Refrigeration cycle
DE102008046590A1 (en) * 2008-09-10 2010-03-11 Bayerische Motoren Werke Aktiengesellschaft Vehicle air-conditioning system, has switching element for changing heat transfer capacity, and bypass for bypassing of fluid connection, so that transferred thermal capacity is reduced to zero
FR2960632B1 (en) * 2010-05-31 2013-05-17 Valeo Systemes Thermiques INTERNAL HEAT EXCHANGER HAVING THREE FLUID CIRCULATION PATHWAYS
EP2568247B1 (en) * 2011-09-07 2019-04-10 LG Electronics Inc. Air conditioner
KR102086378B1 (en) * 2013-03-11 2020-03-10 주식회사 두원공조 Cooling system for vehicle
JP2014185811A (en) * 2013-03-22 2014-10-02 Fujitsu General Ltd Refrigeration cycle device
AU2014410881B2 (en) * 2014-11-04 2018-01-18 Mitsubishi Electric Corporation Air-conditioning apparatus
JP6929318B2 (en) * 2019-03-28 2021-09-01 東プレ株式会社 Refrigeration equipment and operation method of refrigeration equipment
EP3742069B1 (en) * 2019-05-21 2024-03-20 Carrier Corporation Refrigeration apparatus and use thereof
CN111059806B (en) * 2019-09-16 2022-01-18 江苏奥利维尔环境设备有限公司 Air conditioner host with oil separation function, air conditioner system and oil separation method
EP4242551A4 (en) * 2020-11-04 2023-12-06 Mitsubishi Electric Corporation Refrigeration cycle apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0924478A2 (en) * 1997-12-15 1999-06-23 Carrier Corporation Refrigeration system with integrated oil cooling heat exchanger
EP0976991A2 (en) * 1998-07-31 2000-02-02 Zexel Corporation Refrigerating cycle
JP2000274890A (en) * 1999-03-18 2000-10-06 Nippon Soken Inc Supercritical cycle
JP2001027460A (en) * 1993-12-28 2001-01-30 Mitsubishi Electric Corp Refrigeration cycle system
JP2002333221A (en) * 2001-05-01 2002-11-22 Mitsubishi Heavy Ind Ltd Gas cooler and vehicle-mounted air conditioner
EP1394479A2 (en) * 2002-08-30 2004-03-03 Sanyo Electric Co., Ltd. Refrigerant cycling device and compressor
EP1647783A2 (en) * 2004-10-18 2006-04-19 Mitsubishi Denki Kabushiki Kaisha Refrigeration/air conditioning equipment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS602179U (en) * 1983-06-20 1985-01-09 三洋電機株式会社 heat exchange equipment
JP2001174102A (en) * 1999-12-13 2001-06-29 Mitsubishi Heavy Ind Ltd Air conditioner
JP2003021409A (en) * 2001-07-10 2003-01-24 Japan Climate Systems Corp Air conditioner for vehicle
JP2003148814A (en) * 2001-11-15 2003-05-21 Matsushita Electric Ind Co Ltd Refrigerating machine
JP2004092933A (en) * 2002-08-29 2004-03-25 Zexel Valeo Climate Control Corp Refrigeration cycle
JP4112392B2 (en) * 2003-02-07 2008-07-02 株式会社日本クライメイトシステムズ Air conditioner for vehicles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001027460A (en) * 1993-12-28 2001-01-30 Mitsubishi Electric Corp Refrigeration cycle system
EP0924478A2 (en) * 1997-12-15 1999-06-23 Carrier Corporation Refrigeration system with integrated oil cooling heat exchanger
EP0976991A2 (en) * 1998-07-31 2000-02-02 Zexel Corporation Refrigerating cycle
JP2000274890A (en) * 1999-03-18 2000-10-06 Nippon Soken Inc Supercritical cycle
JP2002333221A (en) * 2001-05-01 2002-11-22 Mitsubishi Heavy Ind Ltd Gas cooler and vehicle-mounted air conditioner
EP1394479A2 (en) * 2002-08-30 2004-03-03 Sanyo Electric Co., Ltd. Refrigerant cycling device and compressor
EP1647783A2 (en) * 2004-10-18 2006-04-19 Mitsubishi Denki Kabushiki Kaisha Refrigeration/air conditioning equipment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"2002 Ashrae Handbook, Refrigeration", 2002, ASHRAE, ATLANTA, XP002503576 *

Also Published As

Publication number Publication date
JP4787070B2 (en) 2011-10-05
EP1862749A2 (en) 2007-12-05
JP2007322009A (en) 2007-12-13

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