EP2135017A1 - Prévention de la solidification d'un fluide frigorigène - Google Patents

Prévention de la solidification d'un fluide frigorigène

Info

Publication number
EP2135017A1
EP2135017A1 EP07758235A EP07758235A EP2135017A1 EP 2135017 A1 EP2135017 A1 EP 2135017A1 EP 07758235 A EP07758235 A EP 07758235A EP 07758235 A EP07758235 A EP 07758235A EP 2135017 A1 EP2135017 A1 EP 2135017A1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
set forth
evaporator
refrigerant system
condition
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Withdrawn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
EP07758235A
Other languages
German (de)
English (en)
Other versions
EP2135017A4 (fr
Inventor
Alexander Lifson
Michael F. Taras
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.)
Carrier Corp
Original Assignee
Carrier 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 Carrier Corp filed Critical Carrier Corp
Publication of EP2135017A1 publication Critical patent/EP2135017A1/fr
Publication of EP2135017A4 publication Critical patent/EP2135017A4/fr
Withdrawn legal-status Critical Current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
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • 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
    • 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
    • F25B2600/2501—Bypass 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
    • F25B2700/197—Pressures of the 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
    • 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
    • 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
    • F25D21/06—Removing frost

Definitions

  • the hot gas bypass line 34 will deliver hot refrigerant gas from the compressor discharge to a location upstream of the evaporator 28, by opening a refrigerant flow control device such as a valve 36. Potential locations for solidification include the evaporator 28 and the vicinity of the exit from the refrigerant system expansion device 26. In this manner, the low pressure conditions within the evaporator 28 will be avoided, and the CO 2 refrigerant will not solidify.

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)
  • Defrosting Systems (AREA)
  • Air Conditioning Control Device (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un système réfrigérant qui peut utiliser du CO2 en tant que fluide frigorigène. Si les conditions de fonctionnement détectées indiquent que le fluide frigorigène peut se rapprocher d'un état dans lequel le fluide frigorigène peut se solidifier, des actions correctives sont prises pour empêcher la transformation du fluide frigorigène dans un état thermodynamique solide. Selon un mode de réalisation, un gaz chaud provenant de la sortie d'un compresseur est dévié vers un emplacement situé en amont de l'évaporateur. Dans un autre mode de réalisation, la pression de côté élevé d'un système réfrigérant est ajustée. Selon encore un autre mode de réalisation, une charge supplémentaire de fluide réfrigérant est délivrée à la demande dans le système réfrigérant. Selon un autre mode de réalisation, un cycle de dégivrage est amorcé à la demande. Ces modes de réalisation empêchent le fluide frigorigène de s'approcher des états dans lesquels il peut se solidifier.
EP07758235A 2007-03-09 2007-03-09 Prévention de la solidification d'un fluide frigorigène Withdrawn EP2135017A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2007/063662 WO2008111968A1 (fr) 2007-03-09 2007-03-09 Prévention de la solidification d'un fluide frigorigène

Publications (2)

Publication Number Publication Date
EP2135017A1 true EP2135017A1 (fr) 2009-12-23
EP2135017A4 EP2135017A4 (fr) 2010-03-10

Family

ID=39759780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07758235A Withdrawn EP2135017A4 (fr) 2007-03-09 2007-03-09 Prévention de la solidification d'un fluide frigorigène

Country Status (4)

Country Link
US (1) US20100011787A1 (fr)
EP (1) EP2135017A4 (fr)
CN (1) CN101663546B (fr)
WO (1) WO2008111968A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8931288B2 (en) * 2012-10-19 2015-01-13 Lennox Industries Inc. Pressure regulation of an air conditioner
US9657969B2 (en) 2013-12-30 2017-05-23 Rolls-Royce Corporation Multi-evaporator trans-critical cooling systems
JP2019052794A (ja) * 2017-09-14 2019-04-04 株式会社東芝 熱輸送装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856288A (en) * 1983-07-18 1989-08-15 Weber Robert C Refrigerant alert and automatic recharging device
US5042262A (en) * 1990-05-08 1991-08-27 Liquid Carbonic Corporation Food freezer
US5199275A (en) * 1990-10-01 1993-04-06 General Cryogenics Incorporated Refrigeration trailer
US5313787A (en) * 1990-10-01 1994-05-24 General Cryogenics Incorporated Refrigeration trailer
US6658875B2 (en) * 2001-04-25 2003-12-09 Gsle Development Corporation Method and apparatus for temperature control in a refrigeration device
US6631621B2 (en) * 2001-07-03 2003-10-14 Thermo King Corporation Cryogenic temperature control apparatus and method
EP1422487A3 (fr) * 2002-11-21 2008-02-13 York Refrigeration APS Dégivrage par gaz chaud pour installations frigorifiques
JP4156353B2 (ja) * 2002-12-02 2008-09-24 株式会社テージーケー 冷凍システムおよびその運転方法
JP2004308972A (ja) * 2003-04-03 2004-11-04 Mayekawa Mfg Co Ltd Ｃｏ２冷凍機
US7028494B2 (en) * 2003-08-22 2006-04-18 Carrier Corporation Defrosting methodology for heat pump water heating system
JP5452845B2 (ja) * 2004-01-28 2014-03-26 ブルックス オートメーション インコーポレイテッド 混合不活性成分冷媒を使用する冷媒サイクル
US20070137228A1 (en) * 2005-09-28 2007-06-21 Gang Li Heat pump system having a defrost mechanism for low ambient air temperature operation
WO2007046332A1 (fr) * 2005-10-17 2007-04-26 Mayekawa Mfg. Co., Ltd. Refrigerateur a co2
DK200501574A (da) * 2005-11-11 2005-11-25 York Denmark Aps Defrost system
JP2009052752A (ja) * 2005-12-19 2009-03-12 Panasonic Corp 冷凍サイクル装置

Also Published As

Publication number Publication date
CN101663546B (zh) 2011-11-16
US20100011787A1 (en) 2010-01-21
EP2135017A4 (fr) 2010-03-10
CN101663546A (zh) 2010-03-03
HK1141579A1 (en) 2010-11-12
WO2008111968A1 (fr) 2008-09-18

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