EP1717528A3 - Refrigeration cycle apparatus - Google Patents

Refrigeration cycle apparatus Download PDF

Info

Publication number
EP1717528A3
EP1717528A3 EP06008291A EP06008291A EP1717528A3 EP 1717528 A3 EP1717528 A3 EP 1717528A3 EP 06008291 A EP06008291 A EP 06008291A EP 06008291 A EP06008291 A EP 06008291A EP 1717528 A3 EP1717528 A3 EP 1717528A3
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
refrigeration cycle
cycle apparatus
exchanger tube
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.)
Withdrawn
Application number
EP06008291A
Other languages
German (de)
French (fr)
Other versions
EP1717528A2 (en
Inventor
Kazuo Nakatani
Nohiro Okaza
Hideo Hirano
Yasushi Watanabe
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.)
Panasonic Corp
Original Assignee
Panasonic 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 Panasonic Corp filed Critical Panasonic Corp
Publication of EP1717528A2 publication Critical patent/EP1717528A2/en
Publication of EP1717528A3 publication Critical patent/EP1717528A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-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
    • F28D7/106—Heat-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 two coaxial conduits or modules of two coaxial conduits
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0041—Heat-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 only one medium being tubes having parts touching each other or tubes assembled in panel form
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

In a refrigeration cycle apparatus in which carbon dioxide is used as refrigerant and refractory oil is used as lubricating oil in a compressor, it is an object of the present invention to reduce influence of adhesion of lubricating oil to the internal heat exchanger, and to enhance the heat exchanging efficiency of the internal heat exchanger.
A refrigeration cycle apparatus in which a compressor 11, a radiator 12, an expansion valve 13 and an evaporator 14 are connected to one another through tubes, said refrigeration cycle apparatus comprises an internal heat exchanger 30 for exchanging heat between a high pressure refrgerant wich flows out from said radiator 12 and low pressure refrigerant which flows out from said evaporator 14, wherein carbon dioxide is used as the refrigerant, refractory oil is used as lubricating oil in said compressor 11, said internal heat exchanger 30 comprises a first heat exchanger tube 31 through which the high pressure refrigerant in a supercritical region flows and a second heat exchanger tube 32 through which the low pressure refrigerant flows , said first heat exchanger tube 31 is disposed in said second heat exchanger tube 32.
EP06008291A 2005-04-25 2006-04-21 Refrigeration cycle apparatus Withdrawn EP1717528A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005126995A JP4387974B2 (en) 2005-04-25 2005-04-25 Refrigeration cycle equipment

Publications (2)

Publication Number Publication Date
EP1717528A2 EP1717528A2 (en) 2006-11-02
EP1717528A3 true EP1717528A3 (en) 2011-08-03

Family

ID=36843211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06008291A Withdrawn EP1717528A3 (en) 2005-04-25 2006-04-21 Refrigeration cycle apparatus

Country Status (4)

Country Link
US (1) US20060260354A1 (en)
EP (1) EP1717528A3 (en)
JP (1) JP4387974B2 (en)
CN (1) CN1854647B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008248865A (en) * 2007-03-30 2008-10-16 Fujitsu General Ltd Injectible two-stage compression rotary compressor and heat pump system
JP2009133593A (en) * 2007-12-03 2009-06-18 Sanyo Electric Co Ltd Cooling apparatus
US9989280B2 (en) * 2008-05-02 2018-06-05 Heatcraft Refrigeration Products Llc Cascade cooling system with intercycle cooling or additional vapor condensation cycle
DE112010004016T5 (en) * 2009-10-13 2012-09-20 Showa Denko K.K. Intermediate heat exchanger
KR101676873B1 (en) * 2010-01-13 2016-11-17 엘지전자 주식회사 Connector for double-pipe heat exchanger and heat exchanger having the same
CN102753910B (en) 2010-02-10 2015-09-30 三菱电机株式会社 Freezing cycle device
CN103003645B (en) * 2010-07-23 2015-09-09 开利公司 High efficiency ejector cycle
DE102010034112A1 (en) 2010-08-12 2012-02-16 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Internal heat exchanger for a motor vehicle air conditioning system
KR20130050639A (en) * 2011-11-08 2013-05-16 삼성전자주식회사 Non-azeotropic mixed refrigerent cycle and refrigerator
KR101249721B1 (en) * 2012-09-05 2013-04-02 주식회사 화승알앤에이 Dual pipe for heat exchange
JP2014089042A (en) * 2013-12-25 2014-05-15 Mitsubishi Electric Corp Refrigeration cycle device
JP6300519B2 (en) * 2013-12-26 2018-03-28 株式会社前川製作所 Cooling system using CO2 refrigerant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0915306A2 (en) * 1997-11-06 1999-05-12 Denso Corporation Supercritical refrigerating apparatus
DE19829335A1 (en) * 1998-07-01 2000-02-03 Kki Klima-, Kaelte- Und Industrieanlagen Schmitt Kg Refrigeration system has an intermediate heat exchanger between the condenser and refrigerant expansion unit to heat the refrigerant vapour
WO2000023752A1 (en) * 1998-10-19 2000-04-27 Zexel Valeo Climate Control Corporation Refrigerating cycle
JP2000356419A (en) * 1999-06-17 2000-12-26 Japan Climate Systems Corp Air conditioner for vehicle
JP2002130963A (en) * 2000-10-30 2002-05-09 Mitsubishi Heavy Ind Ltd Intercooler and air conditioning device for co2 refrigerant vehicle
JP2002156162A (en) * 2000-11-16 2002-05-31 Mitsubishi Heavy Ind Ltd Intercooler and air conditioner for vehicle using co2 refrigerant

Family Cites Families (21)

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US2535047A (en) * 1943-11-06 1950-12-26 Dalin David Air preheater for steam generating plants
US2517489A (en) * 1946-06-11 1950-08-01 Comb Eng Superheater Inc Superheater elements with groups of trifurcated tubes
US4258554A (en) * 1977-06-22 1981-03-31 U.S. Philips Corporation Refrigerator
US4208887A (en) * 1979-01-22 1980-06-24 Tecumseh Products Company Suction accumulator having heat exchanger
US4553911A (en) * 1983-11-22 1985-11-19 Frick Company Method of coding the oil in screw compressors equipped with automatic variable volume ratio
US4689964A (en) * 1986-04-02 1987-09-01 Marin-Tek, Inc. Zero gravity (position-insensitive) low-temperature multi-component refrigerator
US5157935A (en) * 1988-08-04 1992-10-27 Super S.E.E.R. Systems Inc. Hot gas defrost system for refrigeration systems and apparatus therefor
US4893670A (en) * 1989-05-24 1990-01-16 General Motors Corporation Integral radiator hose and oil cooler
AU5014293A (en) * 1992-08-28 1994-03-29 Turbocom, Inc. Method and apparatus for mixing fluids
US5522453A (en) * 1995-03-22 1996-06-04 Green; Kenneth E. Washer fluid heater
US5622055A (en) * 1995-03-22 1997-04-22 Martin Marietta Energy Systems, Inc. Liquid over-feeding refrigeration system and method with integrated accumulator-expander-heat exchanger
GB9618181D0 (en) * 1996-08-30 1996-10-09 Ici Plc Refrigerant compositions
JPH10238870A (en) * 1997-02-24 1998-09-08 Zexel Corp Apparatus for refrigerating cycle capacity improvement
TW385332B (en) * 1997-02-27 2000-03-21 Idemitsu Kosan Co Refrigerating oil composition
US6355186B1 (en) * 1999-07-05 2002-03-12 Nippon Mitsubishi Oil Corporation Refrigerating machine oil composition
KR100568244B1 (en) * 2000-02-21 2006-04-05 삼성전자주식회사 Refrigerator
US6363737B1 (en) * 2000-03-07 2002-04-02 Robby D. Raney Heat exchanger and method of use therefor
JP2002195677A (en) * 2000-10-20 2002-07-10 Denso Corp Heat pump cycle
DE10053000A1 (en) * 2000-10-25 2002-05-08 Eaton Fluid Power Gmbh Air conditioning system with internal heat exchanger and heat exchanger tube for one
US6467300B1 (en) * 2001-03-27 2002-10-22 John O. Noble, III Refrigerated intercooler
ITBO20010375A1 (en) * 2001-06-13 2002-12-13 Valter Lolli METHOD FOR THE PRODUCTION OF HEAD ELEMENTS FOR THERMAL RADIATORS, AND HEAD ELEMENT MADE WITH SUCH METHOD

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0915306A2 (en) * 1997-11-06 1999-05-12 Denso Corporation Supercritical refrigerating apparatus
DE19829335A1 (en) * 1998-07-01 2000-02-03 Kki Klima-, Kaelte- Und Industrieanlagen Schmitt Kg Refrigeration system has an intermediate heat exchanger between the condenser and refrigerant expansion unit to heat the refrigerant vapour
WO2000023752A1 (en) * 1998-10-19 2000-04-27 Zexel Valeo Climate Control Corporation Refrigerating cycle
JP2000356419A (en) * 1999-06-17 2000-12-26 Japan Climate Systems Corp Air conditioner for vehicle
JP2002130963A (en) * 2000-10-30 2002-05-09 Mitsubishi Heavy Ind Ltd Intercooler and air conditioning device for co2 refrigerant vehicle
JP2002156162A (en) * 2000-11-16 2002-05-31 Mitsubishi Heavy Ind Ltd Intercooler and air conditioner for vehicle using co2 refrigerant

Also Published As

Publication number Publication date
CN1854647A (en) 2006-11-01
JP2006300488A (en) 2006-11-02
EP1717528A2 (en) 2006-11-02
US20060260354A1 (en) 2006-11-23
JP4387974B2 (en) 2009-12-24
CN1854647B (en) 2012-09-19

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