EP2233860A4 - Refrigerant circuit - Google Patents

Refrigerant circuit

Info

Publication number
EP2233860A4
EP2233860A4 EP08858281.2A EP08858281A EP2233860A4 EP 2233860 A4 EP2233860 A4 EP 2233860A4 EP 08858281 A EP08858281 A EP 08858281A EP 2233860 A4 EP2233860 A4 EP 2233860A4
Authority
EP
European Patent Office
Prior art keywords
refrigerant circuit
refrigerant
intercooler
carbon dioxide
downstream
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Withdrawn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
EP08858281.2A
Other languages
German (de)
French (fr)
Other versions
EP2233860A1 (en
Inventor
Masashi Maeno
Mitsuru Nakamura
Atsushi Okada
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.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP2233860A1 publication Critical patent/EP2233860A1/en
Publication of EP2233860A4 publication Critical patent/EP2233860A4/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel 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
    • 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
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/0272—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using bridge circuits of one-way 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
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
    • 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
    • F25B2400/16—Receivers
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Measuring Fluid Pressure (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

In a refrigerant circuit for a supercritical cycle that uses carbon dioxide as a refrigerant, a refrigerant circuit that can hold an amount of surplus refrigerant is provided. The refrigerant circuit 10 for a refrigerating cycle that uses carbon dioxide as a refrigerant includes an intercooler 7 that is provided downstream of a condenser 3 and an intermediate pressure receiver 4 that is provided via a restriction mechanism 5 downstream of the intercooler 7.
EP08858281.2A 2007-12-07 2008-11-13 Refrigerant circuit Withdrawn EP2233860A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007317563A JP2009139037A (en) 2007-12-07 2007-12-07 Refrigerant circuit
PCT/JP2008/070655 WO2009072379A1 (en) 2007-12-07 2008-11-13 Refrigerant circuit

Publications (2)

Publication Number Publication Date
EP2233860A1 EP2233860A1 (en) 2010-09-29
EP2233860A4 true EP2233860A4 (en) 2013-12-25

Family

ID=40717560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08858281.2A Withdrawn EP2233860A4 (en) 2007-12-07 2008-11-13 Refrigerant circuit

Country Status (3)

Country Link
EP (1) EP2233860A4 (en)
JP (1) JP2009139037A (en)
WO (1) WO2009072379A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014004846A1 (en) * 2014-04-03 2015-10-08 Martin Braun Low-temperature high-pressure thermoforming

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598788A1 (en) * 1986-05-15 1987-11-20 Copeland Corp Refrigeration device
JPH02309157A (en) * 1989-05-24 1990-12-25 Matsushita Electric Ind Co Ltd Two-stage compression refrigeration cycle device and operation thereof
WO1999008053A1 (en) * 1997-08-12 1999-02-18 Zexel Corporation Cooling cycle
JPH11118266A (en) * 1997-10-21 1999-04-30 Daikin Ind Ltd Refrigerant circuit
JP2001004235A (en) * 1999-06-22 2001-01-12 Sanden Corp Steam compression refrigeration cycle
EP1555493A2 (en) * 2004-01-13 2005-07-20 Tecumseh Products Company Method and apparatus for control of carbon dioxide gas cooler pressure by use of a capillary tube
WO2006022829A1 (en) * 2004-08-09 2006-03-02 Carrier Corporation Co2 refrigeration circuit with sub-cooling of the liquid refrigerant against the receiver flash gas and method for operating the same
WO2007111594A1 (en) * 2006-03-27 2007-10-04 Carrier Corporation Refrigerating system with parallel staged economizer circuits and a single or two stage main compressor

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58145859A (en) * 1982-02-24 1983-08-31 株式会社日立製作所 Two-stage screw refrigerator
NO890076D0 (en) * 1989-01-09 1989-01-09 Sinvent As AIR CONDITIONING.
JPH04263746A (en) * 1991-01-31 1992-09-18 Mitsubishi Electric Corp Refrigerator
JPH11108507A (en) * 1997-10-03 1999-04-23 Hitachi Ltd Air conditioner
JP2001296068A (en) * 2000-04-14 2001-10-26 Daikin Ind Ltd Regenerative refrigerating device
JP4658347B2 (en) * 2001-01-31 2011-03-23 三菱重工業株式会社 Supercritical vapor compression refrigeration cycle
JP3778203B2 (en) * 2004-05-11 2006-05-24 ダイキン工業株式会社 Rotary compressor
JP2006214610A (en) * 2005-02-01 2006-08-17 Daikin Ind Ltd Refrigerating device
JP2006220351A (en) * 2005-02-10 2006-08-24 Hitachi Ltd Freezer
US7631510B2 (en) * 2005-02-28 2009-12-15 Thermal Analysis Partners, LLC. Multi-stage refrigeration system including sub-cycle control characteristics
JP2007010282A (en) * 2005-07-04 2007-01-18 Hitachi Ltd Two-stage compression type refrigeration cycle device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598788A1 (en) * 1986-05-15 1987-11-20 Copeland Corp Refrigeration device
JPH02309157A (en) * 1989-05-24 1990-12-25 Matsushita Electric Ind Co Ltd Two-stage compression refrigeration cycle device and operation thereof
WO1999008053A1 (en) * 1997-08-12 1999-02-18 Zexel Corporation Cooling cycle
JPH11118266A (en) * 1997-10-21 1999-04-30 Daikin Ind Ltd Refrigerant circuit
JP2001004235A (en) * 1999-06-22 2001-01-12 Sanden Corp Steam compression refrigeration cycle
EP1555493A2 (en) * 2004-01-13 2005-07-20 Tecumseh Products Company Method and apparatus for control of carbon dioxide gas cooler pressure by use of a capillary tube
WO2006022829A1 (en) * 2004-08-09 2006-03-02 Carrier Corporation Co2 refrigeration circuit with sub-cooling of the liquid refrigerant against the receiver flash gas and method for operating the same
WO2007111594A1 (en) * 2006-03-27 2007-10-04 Carrier Corporation Refrigerating system with parallel staged economizer circuits and a single or two stage main compressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2009072379A1 *

Also Published As

Publication number Publication date
EP2233860A1 (en) 2010-09-29
WO2009072379A1 (en) 2009-06-11
JP2009139037A (en) 2009-06-25

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Effective date: 20170619

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Owner name: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.

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