EP0103228A2 - Dispositif pour réduire la concentration de solvant dans la cuve d'une machine de nettoyage à sec après l'opération de lavage - Google Patents

Dispositif pour réduire la concentration de solvant dans la cuve d'une machine de nettoyage à sec après l'opération de lavage Download PDF

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Publication number
EP0103228A2
EP0103228A2 EP83108505A EP83108505A EP0103228A2 EP 0103228 A2 EP0103228 A2 EP 0103228A2 EP 83108505 A EP83108505 A EP 83108505A EP 83108505 A EP83108505 A EP 83108505A EP 0103228 A2 EP0103228 A2 EP 0103228A2
Authority
EP
European Patent Office
Prior art keywords
air
drying air
housing
solvent
drying
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.)
Ceased
Application number
EP83108505A
Other languages
German (de)
English (en)
Other versions
EP0103228A3 (fr
Inventor
Gustav Kötter
Peter Dipl.-Ing. Mutschelknaus
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.)
Multimatic Maschinen GmbH and Co
Original Assignee
Multimatic Maschinen GmbH and Co
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 Multimatic Maschinen GmbH and Co filed Critical Multimatic Maschinen GmbH and Co
Publication of EP0103228A2 publication Critical patent/EP0103228A2/fr
Publication of EP0103228A3 publication Critical patent/EP0103228A3/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • D06F43/086—Recovering the solvent from the drying air current
    • 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
    • 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

Definitions

  • the invention relates to a method for reducing the solvent concentration in washing drum housings of dry cleaning devices after completion of the washing process, in which the solvent evaporates from the spin-damp goods and heated drying air is circulated through the goods and cleaning or recovery devices, and a dry cleaning device for carrying out this method .
  • the accident prevention regulation VBG 66 for dry cleaning stipulates for the loading and unloading process that there must be a directed air flow flowing into the loading door, which largely prevents the escape of solvent vapors and ensures that the operator is not exposed to excessive solvent vapor concentration. This air flow sucked into the washing drum housing and enriched with solvent vapor is then blown into the open via an activated carbon filter system, which forms a cleaning device.
  • the solvent vapor concentration in the washing drum housing after the completion of the washing process and before the opening of the unloading door is reduced by circulating drying air through the goods and cleaning or recovery devices until a solvent vapor concentration is reached which opens the unloading door allowed without that the environment is exposed to excessive solvent vapor concentration.
  • the cleaning device can consist of an activated carbon filter, while the recovery can be carried out by freezing.
  • the object of the invention is therefore to provide a dry cleaning machine working in a closed system, in which, after opening the unloading door for the purpose of removing the cleaned goods, the operator's breathing area has only a low solvent concentration.
  • this object is achieved in a method of the type mentioned in the introduction that, after drying by circulating drying air, the lines leading to the washing drum housing of the drying air are closed and fresh air is blown through the goods, which is discharged into the open.
  • the washing drum housing is thus separated from the drying air circuit before the opening of the unloading door and fresh air is passed through the goods in the washing drum housing, which largely flushes out the solvent vapors still present and is blown off to the outside at a point which is removed as far as possible from the operator's work area.
  • a dry cleaning device for performing the method according to the invention with a washing drum, which is rotatably mounted in a surrounding housing, which is provided with a loading and unloading door, with a feed line for the solvent and an outlet line in the lower region of the housing, with the housing Connected and closable by flaps or the like lines and a fan for circulating the drying air after completion of the washing process and with an air cooler for condensing the solvent vapors entrained by the drying air and an air heater for heating the returned drying air is characterized according to the invention in that the housing with two closable openings are provided at a distance from one another, one of which is connected to the suction side of a fan, the pressure side of which opens into the open at a distance from the loading and unloading door. At least one of the openings can also be arranged in one of the air lines on the side of the flaps closing the washing drum facing the washing drum.
  • the washing drum 2 is rotatably mounted in a drum-shaped housing 1.
  • the goods 3 introduced through the loading and unloading door (not shown) are also dried in this washing drum 2.
  • the solvent introduced into the housing 1 is drawn off through the line 4 after the cleaning process.
  • Air is drawn in from housing 1 by fan 6 through suction line 7.
  • the suctioned drying air enters the fan 6 via the lint filter 8 and is split behind it by the adjustable flap 9 into two partial streams 10, 10 '.
  • the partial flow 10 ' is passed through the air cooler 11, which is formed by the evaporator of a heat pump.
  • the partial stream 10 ′ of the drying air is cooled to such an extent that the condensed-out solvent collects in the funnel-shaped bottom of the cooling chamber 12 and is drawn off through the only dash-dotted line 13.
  • the partial flows 10, 10 reunite and pass together through the air heater 14, which is the condenser of the Heat pump is formed.
  • the heated drying air re-enters the housing 1 through the blowing line 15 and, by evaporating the product 3, removes the solvent adhering to it.
  • the housing 1, the suction line 7, the cooling chamber 12, the ambient line for the partial flow 10, the superheating chamber 14 and the injection line 15 form a closed system.
  • the heat pump consists of the compressor 16, which compresses the sucked-in refrigerant vapor, so that the refrigerant liquefies again by increasing its boiling point in the condenser 14 and releases the heat of condensation it produces into the drying air.
  • the liquefied refrigerant is then passed through a line, not shown, into the reservoir 17 for the refrigerant.
  • the refrigerant passes through a filter 18, a sight glass 19 and a solenoid valve 20 to the expansion valve 21, through which the refrigerant is throttled and injected into the evaporator 11 after expansion.
  • the refrigerant extracts its heat of vaporization from the partial flow 10 ′ of the drying air.
  • the additional condenser 23 is also switched on when the temperature of the drying air set on the drying thermostat 24 has been reached. At this time, the bypass valve 25 opens and the heat is only dissipated through the additional condenser 23. Overheating of the goods 3 is avoided.
  • a safety pressure switch 26 is provided which switches off the heat pump and the drying device in the event of a fault.
  • the working pressure switch 27 switches the compressor 16 on and off depending on the suction pressure.
  • the temperatures required to liquefy the solvent on the air cooler 11 are also set on this working pressure switch 27.
  • the "closed" dry cleaning machine described above is of a known type.
  • an opening 32 is provided in the warm air suction line 7 and is connected to the suction side of the fan 33.
  • the pressure side of the fan 33 can be closed by the flap 34.
  • the flaps 30, 34 are opened and the fan 33 is switched on.
  • a fresh air flow then enters the washing drum 2 through the opening 31 in the direction of the arrow A and flushes out any solvent vapors still present from this and the goods 3.
  • the fresh air loaded with solvent vapors is then blown out into the direction of arrow B.
  • a line which blows it directly into the open can also be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP83108505A 1982-09-14 1983-08-29 Dispositif pour réduire la concentration de solvant dans la cuve d'une machine de nettoyage à sec après l'opération de lavage Ceased EP0103228A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823234105 DE3234105A1 (de) 1982-09-14 1982-09-14 Verfahren und vorrichtung zum vermindern der loesungsmittelkonzentration in waschtrommelgehaeusen von trockenreinigungsvorrichtungen nach beendigung des waschvorgangs
DE3234105 1982-09-14

Publications (2)

Publication Number Publication Date
EP0103228A2 true EP0103228A2 (fr) 1984-03-21
EP0103228A3 EP0103228A3 (fr) 1984-09-12

Family

ID=6173217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108505A Ceased EP0103228A3 (fr) 1982-09-14 1983-08-29 Dispositif pour réduire la concentration de solvant dans la cuve d'une machine de nettoyage à sec après l'opération de lavage

Country Status (3)

Country Link
EP (1) EP0103228A3 (fr)
JP (1) JPS5982894A (fr)
DE (1) DE3234105A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405941A3 (en) * 1989-06-28 1992-03-04 Damaso Coindreau-Palau Method and system for the recovering of solvents in dry cleaning machines
WO1996013630A1 (fr) * 1994-10-27 1996-05-09 Earnest Gary S Systeme d'isolement et de recuperation des vapeurs residuelles dans le nettoyage a sec
US6042617A (en) * 1997-08-22 2000-03-28 Greenearth Cleaning, Llc Dry cleaning method and modified solvent
US6042618A (en) * 1997-08-22 2000-03-28 Greenearth Cleaning Llc Dry cleaning method and solvent
US6056789A (en) * 1997-08-22 2000-05-02 Greenearth Cleaning Llc. Closed loop dry cleaning method and solvent
US6059845A (en) * 1997-08-22 2000-05-09 Greenearth Cleaning, Llc Dry cleaning apparatus and method capable of utilizing a siloxane composition as a solvent
US6063135A (en) * 1997-08-22 2000-05-16 Greenearth Cleaning Llc Dry cleaning method and solvent/detergent mixture
US6086635A (en) * 1997-08-22 2000-07-11 Greenearth Cleaning, Llc System and method for extracting water in a dry cleaning process involving a siloxane solvent
CN103154350A (zh) * 2010-07-26 2013-06-12 F.M.B.博洛尼亚制造机械股份公司 用于物品干洗的机器和方法
US12221742B2 (en) * 2018-06-04 2025-02-11 Electrolux Professional Ab Tumble dryer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4041145C1 (en) * 1990-12-21 1992-03-19 Multimatic Reinigungs-Systeme Gmbh & Co, 4520 Melle, De Disposal of dirt in needle catcher of tectile cleaning machine - in which dirt is fed to retained solvent and pump at specific intervals
CN104487626A (zh) * 2012-06-27 2015-04-01 罗伯特·李 带有适用多种溶剂的制冷系统的干洗机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE217891C (fr) *
GB696232A (en) * 1949-05-25 1953-08-26 Rudolf Decker Improvements relating to methods for the operation of dry-cleaning machines
NL291235A (fr) * 1962-04-10
US3208156A (en) * 1963-03-07 1965-09-28 Hoyt Mfg Corp Fabric handling apparatus
DE2147125A1 (de) * 1971-07-02 1973-01-11 Ama Artigiani Mecc Ass Trockenwaschmaschine
DE2915735A1 (de) * 1979-04-19 1980-11-06 Krugmann Hans Guenther Verfahren und vorrichtung zur belueftung der trommel einer trockenreinigungsmaschine mit in einem geschlossenen luftkreislauf angeordneter loesemittelrueckgewinnungseinrichtung
DE3020579A1 (de) * 1980-05-29 1981-12-10 Artur Deeg Vorrichtung zur abfuehrung gasfoermiger medien in chemischen reinigungsmaschinen

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405941A3 (en) * 1989-06-28 1992-03-04 Damaso Coindreau-Palau Method and system for the recovering of solvents in dry cleaning machines
WO1996013630A1 (fr) * 1994-10-27 1996-05-09 Earnest Gary S Systeme d'isolement et de recuperation des vapeurs residuelles dans le nettoyage a sec
US6042617A (en) * 1997-08-22 2000-03-28 Greenearth Cleaning, Llc Dry cleaning method and modified solvent
US6042618A (en) * 1997-08-22 2000-03-28 Greenearth Cleaning Llc Dry cleaning method and solvent
US6056789A (en) * 1997-08-22 2000-05-02 Greenearth Cleaning Llc. Closed loop dry cleaning method and solvent
US6059845A (en) * 1997-08-22 2000-05-09 Greenearth Cleaning, Llc Dry cleaning apparatus and method capable of utilizing a siloxane composition as a solvent
US6063135A (en) * 1997-08-22 2000-05-16 Greenearth Cleaning Llc Dry cleaning method and solvent/detergent mixture
US6086635A (en) * 1997-08-22 2000-07-11 Greenearth Cleaning, Llc System and method for extracting water in a dry cleaning process involving a siloxane solvent
CN103154350A (zh) * 2010-07-26 2013-06-12 F.M.B.博洛尼亚制造机械股份公司 用于物品干洗的机器和方法
CN103154350B (zh) * 2010-07-26 2015-12-16 F.M.B.博洛尼亚制造机械股份公司 用于物品干洗的机器和方法
US9297108B2 (en) 2010-07-26 2016-03-29 F.M.B. Fabbrica Macchine Bologna S.P.A. Machine and method for drying cleaning articles
US12221742B2 (en) * 2018-06-04 2025-02-11 Electrolux Professional Ab Tumble dryer

Also Published As

Publication number Publication date
JPS5982894A (ja) 1984-05-14
EP0103228A3 (fr) 1984-09-12
DE3234105A1 (de) 1984-03-22

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Inventor name: KOETTER, GUSTAV

Inventor name: MUTSCHELKNAUS, PETER, DIPL.-ING.