US3610002A - Wearing apparels dry cleaning machine - Google Patents

Wearing apparels dry cleaning machine Download PDF

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Publication number
US3610002A
US3610002A US10453A US3610002DA US3610002A US 3610002 A US3610002 A US 3610002A US 10453 A US10453 A US 10453A US 3610002D A US3610002D A US 3610002DA US 3610002 A US3610002 A US 3610002A
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Prior art keywords
solvent
duct
air
heat
condenser
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Expired - Lifetime
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US10453A
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English (en)
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Poerio Carpigiani
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Individual
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Individual
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    • 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

  • a dry cleaning machine employing low boiling point solvents comprises a cleaning chamber containing a revolving drum connected through a pair of valved ducts to a clean solvent tank and to a soiled solvent receiver and still; said soiled solvent still being connected with said clean solvent tank by means of ducts; said cleaning chamber being further connected to a valved drying air circuit including an air-inlet duct and an air outlet duct and an a pair of heat pumps, based on the vapor compression refrigerating cycle and each comprising a heatevolving condenser and a heat-absorbing evaporator; the condenser of one of said heat jumps being fitted in the soiled solvent still while the corresponding evaporator is inserted in the distillation duct leading to the clean solvent tank; while the condenser of the other of said heat pumps is inserted on the delivery duct of a blower blowing air into the cleaning chamber, the corresponding evaporator being inserted in
  • This invention relates to a machine for the dry cleaning of articles of clothing or wearing apparel by employing solvents having a very low boiling point, such as the class of the chloro-fluorinated hydrocarbons.
  • the invention relates to a dry cleaning machine of the kind comprising a dry cleaning chamber housing a rotatable perforated drum, and a very low-boiling point dry cleaning solvent-feeding and recovering circuit comprising: a feed tank for the clean solvent, communicating with the top of the dry cleaning chamber, a soiled-solvent receiver communicating with the bottom of the dry cleaning chamber and functioning also as a solvent still; a distillation duct leading from said still to said feed tank, heating means in heat-exchange relation with the soiled solvent in said still furnishing the heat for the distillation of the said solvent and cooling means at the head end of the said distillation duct for condensing the distilled solvent vapors evolved from the soiled solvent in said still.
  • the cooling means were constituted by the evaporator of a refrigerating machine, while the heating means were constituted by electric heating elements.
  • the problem is solved in a simple and economical manner by using the condenser of a vapor-compression refrigeration cycle as a source of heat for the distillation of the solvent in the soiled solvent receiver and still.
  • a heat pump is employed that is based on a vapor-compression refrigerating cycle, which operates with great efiiciency due to the very eificient heat absorption from its condenser.
  • the machine according to the invention includes a cycle for recovering the solvent imbibing the cleaned article, said solvent-recovering cycle employing an evaporator of a like vapor-compression refrigerating system including an evaporator, generating the cold for condensing the solvent vapors entrained by the air blown through the dry cleaned articles and a condenser for heating the air to be blown through said articles.
  • a single motor-compressor of a vapor-compression refrigerating machine may be used for alternately operating the aforementioned refrigerating cycles.
  • a common evaporator may be employed for refrigerating and condensing in liquid form both the solvent vapors distilled from the soiled solvent, as well as those entrained by the warm air blown through the cleaned articles, while each refrigerating cycle has a separate condenser, one in heat-exchange relation with the soiled solvent in the receiver, functioning also as still, and the other in heat-exchange relation with the air in a duct on the pressure side of the blower, valve means being provided for switching off and on either of said vapor-compression refrigerating cycles, by connecting same alternately to the single motor compressor.
  • FIG. 1 is a flow-sheet diagram of a dry cleaning machine including two independent solvent-recovery circuits, each consisting of a vapor-compression refrigerating cycle provided with its own independent motor-compressor, and
  • FIG. 2 is a variation of the dry cleaning machine shown in FIG. 1, employing a single motor-compressor acting alternately for operating each of the vapor-compression refrigerating circuits.
  • the dry cleaning machines according to the invention are designed for employing very efiicient but expensive solvents having a very low boiling point, such as the chloro-fiuorinated hydrocarbons of the kind of those known under the registered trade names Freon or Frigen.
  • the dry cleaning machine comprises a cleaning chamber 2, which is tightly closed by a door (not shown).
  • a perforated drum 1 designed for containing the articles to be dry cleaned, this being rotatably mounted on shaft 101 and driven by a conventional electric motor and step-down gear (not shown).
  • the solvent is fed from a clean solvent tank 4 through an inlet duct 5 into the drum and discharged through an outlet duct 7 into a soiled-solvent receiver 9, both ducts being controlled by conventional electromagnetic valves 6 and 8.
  • the solvent in the receiver 9 is purified by distillation by utilising the same receiver 9 as still and conveying the solvent vapors through duct 10 into a condensation duct or chamber 11 where the vapors are cooled as will be seen hereinafter and from where they flow back into the clean solvent tank 4.
  • the closed circuit 22 in which circulates the air entraining solvent vapors evaporated from the articles in drum 1, and comprising a blower 17 the output side of which is connected to a duct 18 and connected through a conventional electromagnetic-controlled valve 19 with the chamber 2.
  • the suction side of said blower 17 is connected through upright tube 20 with a solvent vapor condensation duct or chamber 21.
  • the liquefied solvent vapors condensed in duct 21 may flow back into the clean-solvent tank 4 through duct 24.
  • the air containing the solvent vapors evaporated from the articles in chamber 2 is discharged from this chamber 2 into the refrigerated condensation duct 21 through electromagnetic valve 23 positioned on top of chamber 2.
  • the heat required for both distilling the solvent and condensing the solvent vapors is produced by auxiliary vapor-compression refrigerating circuits which act as heat pumps.
  • the auxiliary refrigerating circuit A for distilling the soiled solvent and recovering the same solvent by condensing the distilled solvent vapors comprises a motorcompressor unit 14, a condenser coil 13, an expansion valve 16' and an evaporator 15.
  • the condenser 13 serves as a heating coil for distilling the solvent in the receiver 9, which functions as a still
  • the evaporator 15 serves as a cooling means for condensing the solvent vapors flowing through the condensation duct or chamber 11 and returned in liquid form through duct 12 to the solvent tank 4.
  • the auxiliary refrigerating circuit B for recovering the solvent vapors entrained by the drying air passing through the dry cleaned articles comprises a second motor-compressor unit '26 provided with a condenser coil 25 inserted in heat-exchange relation in the delivery duct 18 of the blower 17 and serves to heat the air to be blown into chamber 2, an expansion valve 28, and an evaporator 27 in heat exchange relation with the air sucked from chamber 2 by the blower 17 and containing solvent vapors which are condensed and liquefied by flowing into contact with the cold walls of the evaporator 27 and may flow back through descending pipe 24 into the clean solvent tank 4.
  • the clean solvent from tank 4 is caused to flow through valve 6 and duct into drum 1 containing the articles to be cleaned.
  • the soiled solvent from the dry cleaning chamber 2 is discharged through duct 7 and valve 8 into the soiled solvent receiver acting as a still 9.
  • the motor-compressor unit 14 is operated so that the solvent in receiver 9 is distilled by utilizing the heat evolved from the condenser 13 and is again condensed by utilizing the cold generated by the evaporator 15 and flows back through duct 12 into the clean-solvent tank 4.
  • valves 19 and 23 are opened and at the same time the motor-compressor 14 is stopped and motor-compressor 26 and blower 17 are started.
  • hot air is blown through valve 19 into chamber 2 and solvent vaporcharged air is discharged from the same chamber through valve 23 and this air, by passing through duct 21 comes into contact with the cold evaporator 27 and thus the solvent vapors, by coming into contact with said evaporator, are condensed and flow back through descending duct 24 into tank 4, while the air deprived from solvent vapors is sucked by blower 17, again heated and circulated into and through the articles in drum 1, from which it absorbs the solvent still wetting them.
  • valves 19 and 23 are also closed and the chamber may be opened and the cleaned articles extracted from drum 1 and replaced by other articles to be cleaned.
  • a single motor compressor 30 is employed for operating alternately either of said two heat pumps acting on the principle of the vapor-compression refrigeration cycles and Serving for the distillation of the soiled solvent, for the condensation of the distilled solvent vapors and for the recovery by condensation of the solvent vapors entrained by the air blown through the cleaned articles for removing the solvent still wetting them.
  • the cleaning solvent as in the first embodiment, is stored in tank 4 and is fed into chamber 2 and drum 1 through valve 6 and discharged through valve 8 into the soiled-solvent receiver and still 9 where it is distilled by being heated by the heat generated in condenser 113.
  • a two-way valve 29 mounted on the delivery side of the motor compressor 30 is switched so as to insert the condenser 113 and the refrigerating circuit C1 is completed by opening two-way valve 31 so that the condensed low-boiling solvent, by passing through expansion valve 116 may expand into the evaporator 115 in heat-exchange relation with the descending condensation duct 111 through which the distilled solvent vapors flow and are liquefied, so that they can flow down into tank 4.
  • the two-way valve 29 is switched so as to exclude the condenser 113 and include the condenser 125, inserted in the delivery duct connected to the pressure side of the blower 17 (which in the meantime has been started) and forming part of the heat pump circuit C2 including also two-way valve 31, expansion valve 116 and evaporator 115.
  • the circuit of the air when the blower is started and the heat pump circuit C2, including condenser 125, is switched on, passes through duct 18 where the air, after the removal of the solvent vapors therefrom, is heated by condenser 125, then passes through drum '1 where it removes the solvent in vapor form from the cleaned articles and subsequently is led through valve 23, duct 220 and chamber 111 into contact with the cold evaporator 115 which promotes the condensation of the vapors which flow in liquid form back to receiver or tank 4, while the air, after removal of the solvent vapors, is sucked through ducts 120 and 20 by the blower 17 and the drying air cycle is started again, until the solvent has been substantially completely removed from the articls in drum 1.
  • a supplementary cooling coil 32 may be employed, through which cold water, when available, might be circulated.
  • a dry cleaning machine wherein both heat pumps are driven by a single motor-compressor through a two-way switch valve.
  • a dry cleaning machine wherein a single chamber is provided for condensing the solvent vapors both coming from the soiled solvent still and from the solventcharged air coming out of the cleaning chamber during the drying of the cleaned articles; a single evaporator mounted in said condensation chamber; valves for connecting said chamber with either of the solvent circuits nad valves for connecting the only evaporator with either of the two condensers forming part of the circuits of the said two heat pumps.
  • a dry cleaning machine employing low boiling point solvents comprising a cleaning chamber containing a revolving drum connected through a pair of valved ducts to a clean solvent tank and to a soiled solvent receiver and still; said soiled solvent still being connected with said clean solvent tank by means of ducts; said cleaning chamber being further connected to a valved drying air circuit including an air-inlet duct and an air outlet duct and a pair of heat pumps, based on the vapor compression refrigerating cycle and each comprising a heat-evolving condenser and a heat-absorbing evaporator; the condenser of one of said heat pumps being fitted in the soiled solvent still while the corresponding evaporator is inserted in the distillation duct leading to the clean solvent tank; while the condenser of the other of said heat pumps is inserted on the delivery duct of a blower blowing air into the cleaning chamber, the corresponding evaporator being inserted in the air outlet duct of said chamber said air out let duct being connected

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
US10453A 1969-02-13 1970-02-11 Wearing apparels dry cleaning machine Expired - Lifetime US3610002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT680569 1969-02-13

Publications (1)

Publication Number Publication Date
US3610002A true US3610002A (en) 1971-10-05

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ID=11122045

Family Applications (1)

Application Number Title Priority Date Filing Date
US10453A Expired - Lifetime US3610002A (en) 1969-02-13 1970-02-11 Wearing apparels dry cleaning machine

Country Status (10)

Country Link
US (1) US3610002A (xx)
JP (1) JPS4810355B1 (xx)
AU (1) AU1142970A (xx)
BE (1) BE745841A (xx)
CH (1) CH501760A (xx)
DE (1) DE2004650A1 (xx)
ES (1) ES376775A1 (xx)
FR (1) FR2035303A5 (xx)
GB (1) GB1244464A (xx)
SE (1) SE360405B (xx)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100082A2 (en) * 1982-07-27 1984-02-08 DONINI INTERNATIONAL S.p.A. Heat recovery system for a dry cleaner drying and deodorizing circuit
EP0260333A1 (en) * 1986-09-16 1988-03-23 Giorgio Luppi Improvement to a dry cleaning plant
US4774821A (en) * 1986-11-26 1988-10-04 Giorgio Luppi Dry cleaning machine
EP0405941A2 (en) * 1989-06-28 1991-01-02 Damaso Coindreau-Palau Method and system for the recovering of solvents in dry cleaning machines
US5193560A (en) * 1989-01-30 1993-03-16 Kabushiki Kaisha Tiyoda Sisakusho Cleaning system using a solvent
US5492138A (en) * 1992-11-13 1996-02-20 Taricco; Todd Pressure controlled cleaning system
WO1996013630A1 (en) * 1994-10-27 1996-05-09 Earnest Gary S Drycleaning secondary vapor isolation and recovery system
US5887454A (en) * 1997-01-31 1999-03-30 Renzacci S.P.A. Industria Lavatrici Dry-cleaning machine with steam heated drying air
US20050199016A1 (en) * 2004-03-15 2005-09-15 Masaya Tadano Dry cleaner and drying machine
US20060248929A1 (en) * 2005-05-06 2006-11-09 I.L.S.A. Spa Fabric articles dry cleaning machine by solvent nebulization
US20080230098A1 (en) * 2005-07-28 2008-09-25 Lindqvist Kenneth S Cooling/Heating System for Co2 Cleaning Machine
US20100043150A1 (en) * 2007-01-29 2010-02-25 F.M.B. Fabbrica Macchine Bologna S.P.A. Machine for dry-cleaning articles
US9803313B2 (en) 2014-12-29 2017-10-31 Lg Electronics Inc. Clothes treating apparatus
EP3763427A1 (fr) * 2019-07-11 2021-01-13 Commissariat à l'Energie Atomique et aux Energies Alternatives Système de récupération thermique d'un condenseur de distillation et procédé associé

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51148252U (xx) * 1975-05-22 1976-11-27
JPS5356756U (xx) * 1976-10-15 1978-05-15
DE2936769C2 (de) * 1979-09-12 1982-12-02 Hans F. 7120 Bietigheim-Bissingen Arendt Trocknungsmaschine
FR2467009A1 (fr) * 1979-10-10 1981-04-17 Amaten Procede et machine de traitement en milieu solvant
JPS5762547U (xx) * 1980-09-29 1982-04-14
DE3044331A1 (de) * 1980-11-25 1982-06-16 Multimatic Maschinen GmbH & Co, 4520 Melle Trockenreinigungsvorrichtung
FR2502200A1 (fr) * 1980-11-27 1982-09-24 Giraud Robert Recuperateur et regenerateur du solvant utilise au cours des operations de nettoyage a sec des textiles
IT1168452B (it) * 1981-08-10 1987-05-20 Orlando Bedolo Impianto depuratore a ciclo figorifero e pompa di calore per miscugli gassosi condensabili
FR2536433A1 (fr) * 1982-11-19 1984-05-25 Privat Michel Procede et installation de nettoyage et decontamination particulaire de vetements, notamment de vetements contamines par des particules radioactives
IT1235608B (it) * 1989-09-27 1992-09-11 Multimax Srl Macchina lavasecco a circuito chiuso
DE102007062836A1 (de) * 2007-12-27 2009-07-02 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Entsorgen eines Kondensats in einem Hausgerät zur Pflege von Wäschestücken

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100082A2 (en) * 1982-07-27 1984-02-08 DONINI INTERNATIONAL S.p.A. Heat recovery system for a dry cleaner drying and deodorizing circuit
EP0100082A3 (en) * 1982-07-27 1984-09-12 Donini International S.P.A. Heat recovery system for a dry cleaner drying and deodorizing circuit
EP0260333A1 (en) * 1986-09-16 1988-03-23 Giorgio Luppi Improvement to a dry cleaning plant
US4774821A (en) * 1986-11-26 1988-10-04 Giorgio Luppi Dry cleaning machine
US5193560A (en) * 1989-01-30 1993-03-16 Kabushiki Kaisha Tiyoda Sisakusho Cleaning system using a solvent
EP0405941A2 (en) * 1989-06-28 1991-01-02 Damaso Coindreau-Palau Method and system for the recovering of solvents in dry cleaning machines
EP0405941A3 (en) * 1989-06-28 1992-03-04 Damaso Coindreau-Palau Method and system for the recovering of solvents in dry cleaning machines
US5492138A (en) * 1992-11-13 1996-02-20 Taricco; Todd Pressure controlled cleaning system
WO1996013630A1 (en) * 1994-10-27 1996-05-09 Earnest Gary S Drycleaning secondary vapor isolation and recovery system
US5887454A (en) * 1997-01-31 1999-03-30 Renzacci S.P.A. Industria Lavatrici Dry-cleaning machine with steam heated drying air
US20050199016A1 (en) * 2004-03-15 2005-09-15 Masaya Tadano Dry cleaner and drying machine
EP1584731A2 (en) * 2004-03-15 2005-10-12 SANYO ELECTRIC Co., Ltd. Dry cleaner and corresponding drying machine
EP1584731A3 (en) * 2004-03-15 2007-11-14 SANYO ELECTRIC Co., Ltd. Dry cleaner and corresponding drying machine
US20060248929A1 (en) * 2005-05-06 2006-11-09 I.L.S.A. Spa Fabric articles dry cleaning machine by solvent nebulization
US7610780B2 (en) * 2005-05-06 2009-11-03 I.L. S.A. SpA Fabric articles dry cleaning machine by solvent nebulization
US20080230098A1 (en) * 2005-07-28 2008-09-25 Lindqvist Kenneth S Cooling/Heating System for Co2 Cleaning Machine
US20100043150A1 (en) * 2007-01-29 2010-02-25 F.M.B. Fabbrica Macchine Bologna S.P.A. Machine for dry-cleaning articles
US9803313B2 (en) 2014-12-29 2017-10-31 Lg Electronics Inc. Clothes treating apparatus
EP3763427A1 (fr) * 2019-07-11 2021-01-13 Commissariat à l'Energie Atomique et aux Energies Alternatives Système de récupération thermique d'un condenseur de distillation et procédé associé
FR3098571A1 (fr) * 2019-07-11 2021-01-15 Commissariat A L'energie Atomique Et Aux Energies Alternatives système de récupération thermique d'un condenseur de distillation et procédé associé

Also Published As

Publication number Publication date
FR2035303A5 (xx) 1970-12-18
DE2004650A1 (de) 1970-09-03
JPS4810355B1 (xx) 1973-04-02
AU1142970A (en) 1971-08-19
CH501760A (de) 1971-01-15
BE745841A (fr) 1970-07-16
GB1244464A (en) 1971-09-02
ES376775A1 (es) 1972-05-01
SE360405B (xx) 1973-09-24

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