EP2576886A2 - Kühlvorrichtung und verfahren für co2-waschmaschinen - Google Patents

Kühlvorrichtung und verfahren für co2-waschmaschinen

Info

Publication number
EP2576886A2
EP2576886A2 EP11723039.1A EP11723039A EP2576886A2 EP 2576886 A2 EP2576886 A2 EP 2576886A2 EP 11723039 A EP11723039 A EP 11723039A EP 2576886 A2 EP2576886 A2 EP 2576886A2
Authority
EP
European Patent Office
Prior art keywords
fluid
cooling
pressure
regulator
compressor
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.)
Granted
Application number
EP11723039.1A
Other languages
English (en)
French (fr)
Other versions
EP2576886B1 (de
Inventor
Ahmed Al Jassani
Håkan L. KARLSSON
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.)
Electrolux Laundry Systems Sweden AB
Original Assignee
Electrolux Laundry Systems Sweden AB
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 Electrolux Laundry Systems Sweden AB filed Critical Electrolux Laundry Systems Sweden AB
Publication of EP2576886A2 publication Critical patent/EP2576886A2/de
Application granted granted Critical
Publication of EP2576886B1 publication Critical patent/EP2576886B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/08—Associated apparatus for handling and recovering the solvents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/08—Associated apparatus for handling and recovering the solvents
    • D06F43/081—Reclaiming or recovering the solvent from a mixture of solvent and contaminants, e.g. by distilling
    • D06F43/083—Condensing arrangements

Definitions

  • the present invention relates to dry cleaning systems namely washing machines using dry solvents such as carbon dioxide.
  • the present invention relates to a cooling device and method for cooling solvents being used in such systems .
  • Known dry cleaning systems usually contain a cleaning chamber wherein e.g. fabrics are cleaned, a distiller for separating the carbon dioxide from
  • EP1842602 which discloses a multiple bath C02 system wherein the system and method is designed for processing parts in more than one bath of dense phase carbon dioxide.
  • the system disclosed in EP1842602 is designed to work within a
  • This type of cooling device uses refrigerants, for example R404 refrigerant, which is not environmenta friendly.
  • refrigerants for example R404 refrigerant
  • the use of this type or similar refrigerant is surrounded by governmental rules which therefore make it cumbersome to use. Furthermore it also increases the production cost since more complex
  • an apparatus for cleaning articles comprising, a compressor unit for cleaning
  • the cooling unit comprises water as coolant.
  • the temperature of the water may be around room temperature such as around 20 °C or above.
  • the water supply for the water used in the cooling unit as coolant can be taken directly from a duct, thereby water can be supplied on a need to have basis into the cooling unit.
  • the apparatus according to the invention may use a
  • compressor unit comprising one, two or more compressor stages.
  • pressure after the compressor unit is about 70 bar or more.
  • the regulator may be any kind of device suitable to increase the pressure in the apparatus according to the invention.
  • it may comprise a back pressure valve or an expansion valve. It may also comprise a valve for a fixed pressure increase such as a fixed counter pressure valve.
  • Other solutions known to the person skilled in the art may also be used in order to increase the pressure in the arrangement according to the invention.
  • the cooling step preferably comprises cooling the fluid with water as coolant. Thereby a more environmental friendly solution can be achieved.
  • the water may be room tempered and directly supplied from a duct on a need to have basis.
  • the regulating step according to the invention preferably comprises the step of increasing the pressure. So that a higher pressure is build up in a certain part in the
  • the pressure is increased where the cooling step takes place in the system, before the fluid is transferred to the storage device.
  • the method may further comprise a second cooling step comprising a pressure decrease.
  • a second cooling step comprising a pressure decrease.
  • FIG 1 illustrates an embodiment of the apparatus
  • Figure 2 illustrates the apparatus according to the present invention during fluid evacuation, where the fluid is in gas phase.
  • Figure 3 illustrates the apparatus according to the present invention during distillation.
  • Figure 4 illustrates an embodiment of the present invention in an apparatus having a two stage compressor solution.
  • Figure 5 illustrates method steps according to the present invention .
  • the compressor unit 2 does not necessarily directly influence what phase the fluid is in, within the cleaning chamber 4, during e.g. a cleaning process. This is dependent on the temperature and/or pressure in accordance with the ideal gas law or related laws. For example the temperature can be decided by the pressure or the other way around. Thus in some parts of the system the fluid may be in a liquid state or in a gas state or in both liquid and gas state, depending on the pressure and temperature.
  • the fluid is first distilled in the
  • distiller 5 in order to remove contaminants from the fluid.
  • the fluid is heated so that it gasifies and thereby can be removed from the distiller 5 without the contaminants.
  • the fluid Before the fluid is transferred into the storage device 1 it has to be cooled in the cooling unit 3.
  • the pressure on the fluid has to be at a certain level so that the water provides a cooling effect on the fluid.
  • the pressure of the fluid passing the cooling unit is increased by a regulator 7 so that the temperature and pressure of the fluid is 35°C or more and 70 bar or higher.
  • Room tempered water is about 20 °C or above, however it can also be cooler such as between 15°C - 20°C. As long as the water is cooler than the fluid it is supposed to cool, a cooling effect can be achieved. Thus this makes it possible to use water as coolant directly supplied from a duct.
  • Coolant can also be requested on a need to have basis automatically by the apparatus according to the invention.
  • the regulator 7 can either be of a variable active type that regulates the pressure
  • the pressure before the regulator 7 is set to a fixed level (e.g. 70 bar) independently of the pressure after the regulator 7.
  • the delta ( ⁇ ) value of the pressure before and after the regulator 7 is variable.
  • the regulator 7 may also be of a fixed type that ensures a fixed pressure difference, delta ( ⁇ ) pressure, before and after the
  • regulator 7 such as +5, +10 or +15 bar, based on the pressure after the regulator 7.
  • FIG. 2 illustrates an embodiment according to the
  • the compressor 2 evacuates the fluid, in gas phase, from the cleaning chamber 4 by building up the pressure after the compressor 2. This is achieved by the regulator 7, thereby the fluid can be cooled by water in the cooling unit 3.
  • the regulator 7 regulates the pressure so that the pressure of the fluid is 70 bar or higher before the regulator and about 55-60 bar after the regulator 7.
  • FIG. 3 illustrates the apparatus according to the
  • Figure 4 depict an apparatus according to the invention comprising a compressor unit 2 comprising two compressor stages .
  • FIG. 5 shows a method according to the invention

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
EP11723039.1A 2010-05-28 2011-05-27 Kühlgerät und verfahren für co2 waschmaschinen Active EP2576886B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1000577 2010-05-28
PCT/EP2011/058708 WO2011147956A2 (en) 2010-05-28 2011-05-27 Cooling device and method therefore for co2 washing machines

Publications (2)

Publication Number Publication Date
EP2576886A2 true EP2576886A2 (de) 2013-04-10
EP2576886B1 EP2576886B1 (de) 2017-03-15

Family

ID=44626667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11723039.1A Active EP2576886B1 (de) 2010-05-28 2011-05-27 Kühlgerät und verfahren für co2 waschmaschinen

Country Status (3)

Country Link
US (1) US20130167558A1 (de)
EP (1) EP2576886B1 (de)
WO (1) WO2011147956A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4001497A2 (de) 2020-11-17 2022-05-25 LG Electronics Inc. Wäschebehandlungsvorrichtung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011147954A2 (en) * 2010-05-28 2011-12-01 Electrolux Laundry Systems Sweden Ab Cooling device and method therefore for co2 washing machines
KR102536873B1 (ko) * 2021-01-25 2023-05-26 엘지전자 주식회사 세탁기
KR102552904B1 (ko) * 2021-01-25 2023-07-07 엘지전자 주식회사 세탁기
KR102472995B1 (ko) * 2021-01-25 2022-12-01 엘지전자 주식회사 세탁기

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB887677A (en) * 1958-07-10 1962-01-24 Pica Soc Nouv Apparatus for solvent recovery
US3002287A (en) * 1960-02-18 1961-10-03 Detrex Chem Ind Control means for solvent recovery machine
DE2426741C3 (de) * 1974-06-01 1982-02-25 Hoechst Ag, 6000 Frankfurt Vorrichtung zum Reinigen von Textilien, Leder und Pelzen mit organischem Lösemittel und zum Destillieren des Lösemittels
DE3038789A1 (de) * 1980-10-14 1982-04-29 Lohmann Gmbh & Co Kg, 5450 Neuwied Verfahren und anlage zur fraktionierten kondensation von loesungsmitteldampfgemischen aus einem traegergasstrom
US4984318A (en) * 1989-06-28 1991-01-15 Coindreau Palau Damaso Method and system for the recovering of solvents in dry cleaning machines
US5702535A (en) * 1991-11-05 1997-12-30 Gebhard-Gray Associates Dry cleaning and degreasing system
US6004403A (en) * 1991-11-05 1999-12-21 Gebhard Gray Associates Solvent cleaning system
US5267455A (en) * 1992-07-13 1993-12-07 The Clorox Company Liquid/supercritical carbon dioxide dry cleaning system
US6397421B1 (en) * 1999-09-24 2002-06-04 Micell Technologies Methods and apparatus for conserving vapor and collecting liquid carbon dioxide for carbon dioxide dry cleaning
US7513132B2 (en) * 2003-10-31 2009-04-07 Whirlpool Corporation Non-aqueous washing machine with modular construction
KR20030046506A (ko) * 2000-10-13 2003-06-12 미셀 테크놀로지즈, 인코포레이티드 이산화탄소 및 분리형 압력용기를 이용하는 드라이크리닝처리용 기구 및 방법
JP4175811B2 (ja) * 2002-01-30 2008-11-05 日本サーモスタット株式会社 サーモエレメント
JP4121822B2 (ja) * 2002-10-04 2008-07-23 三洋電機株式会社 ドライクリーニング装置
EP1584731A3 (de) * 2004-03-15 2007-11-14 SANYO ELECTRIC Co., Ltd. Trockenreinigungsmaschine und zugehöriger Trockner
US7966684B2 (en) * 2005-05-23 2011-06-28 Whirlpool Corporation Methods and apparatus to accelerate the drying of aqueous working fluids
EP1747822A1 (de) * 2005-07-28 2007-01-31 Linde Aktiengesellschaft Kühl-/Heizsystem für eine Maschine zur Reinigung mit Kohlendioxid
ATE432778T1 (de) 2006-04-06 2009-06-15 Linde Ag Mehrbad-co2-reinigung

Non-Patent Citations (1)

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Title
See references of WO2011147956A2 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4001497A2 (de) 2020-11-17 2022-05-25 LG Electronics Inc. Wäschebehandlungsvorrichtung

Also Published As

Publication number Publication date
EP2576886B1 (de) 2017-03-15
US20130167558A1 (en) 2013-07-04
WO2011147956A3 (en) 2012-01-19
WO2011147956A2 (en) 2011-12-01

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