US3557581A - Dry cleaning apparatus - Google Patents

Dry cleaning apparatus Download PDF

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Publication number
US3557581A
US3557581A US721126A US3557581DA US3557581A US 3557581 A US3557581 A US 3557581A US 721126 A US721126 A US 721126A US 3557581D A US3557581D A US 3557581DA US 3557581 A US3557581 A US 3557581A
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US
United States
Prior art keywords
solvent
condenser
filter
circuit
tank
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.)
Expired - Lifetime
Application number
US721126A
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English (en)
Inventor
Attilio Donini
Teodoro Donini
Bruno Donini
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3557581A publication Critical patent/US3557581A/en
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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

Definitions

  • a dry cleaning apparatus with at least one solvent storage container, a washing tank and relative washing cage, a circuit for circulating the solvent recovery and regeneration circuits for the solvent, filter members, at least one pump for circulating the solvent, at least one source of hot air, at least one condenser and a distiller for the solvent.
  • An object of this invention is to improve and simplify the system for recovering and regeneratingthe solvent in a dry cleaning apparatus.
  • a dry cleaning apparatus with at least one solvent storage container, a washing tank and relative washing cage, a circuit for circulating the solvent, recovery and regeneration circuits for the solvent, filter members, at least one pump for circulating the solvent, at leastone source of hot air, at least one condenser and a distiller, wherein according to theimprovement the circuit for circulating the solvent, .the circuit for the regeneration of the solvent and the circuit for the recovery of the solvent have common circluit portions for at least two among said circuits, said common circuit portions including said washing tank, valve means being provided for connecting said common circuit portions with the other portions of one among said circuits and with said solvent storage container.
  • the dry cleaning apparatus comprises solvent recovery and regeneration circuits which communicate with the reservoir or container 1, said solvent recovery circuit enabling the solvent which is vaporized inside the washing tank 11 during the drying stage of the fabrics or garments being cleaned, to be converted to liquid state.
  • Said solvent recovery circuit comprises a heater 19 designed to raise the temperature of the air sucked through an orifice 20 by an electric fan 22 and to cause such air to pass through a tube 23 inside the washing tank 11.
  • Said tube 24 is designed to allow the passage of hot air which, after passing from said heater 19 and contacting the fabrics or garments arranged in said drum, entrains the solvent vapours therewith. Such hot air passes then through said tube 24 to a filter 25, whose filter surface retains any suspended extraneous bodies, and thence to a condenser 26.
  • Said condenser 26 has a condensation collector or trap which is connected to a separation device 29 through a tube 27 and a solvent flow inspection point 28.
  • Said separation device is designed to separate, by means of difference of density, the now liquid solvent from possible water.
  • the outlet of said separation device 29 communicates with the upper part of said reservoir 1 through a manually operable valve 30 and a tube 31.
  • a tube 32 Extending from a point between the outlet of said separation device 29 and said valve 30 towards said washing tank 11 is a tube 32, substantially upwardly inclined towards the tank 11.
  • the refrigeration unit 34 of said condenser 26 is arranged in series, through a duct 35, with the refrigeration unit 36 of a second condenser 37.
  • the discharge of said condenser 37 is connected, through a tube 38, with the condensation collection chamber of said condenser 26. From the condenser 37, the condensate reaches the storage container 1 through the already described inspection point 28, the separator 29, valve 30 and pipe 31.
  • the inlet of said condenser 37 is connected, through a pipe 39, to the outlet of a distiller 40.
  • Said distiller 40 is connected, through a manually operable valve 41, to the discharge or drainage of the filter 9 which is arranged at a higher level than said distiller 40.
  • the filter 9 is prepared by inserting an adequate supply of fossil meal inside the cage 17 or also the tank 11, and starting the pump 5. Said pump 5 causes the solvent to pass from the reservoir 1 to the chamber or cornpartment 2 and thence to the filter 9.
  • the fossil powder i.e. the cleaning circuit, which is a valveless circuit
  • the solvent is discharged into the cleaning or washing tank 11 and from thence, carrying any fossil meal which may have been placed in the tank 11 during the filter preparation, passes through the ducts 12 and 14 and the interposed valve 13 and re-enters the chamber 2.
  • the solvent is sucked directly from the storage container only during a limited period of time until the flow of solvent which enters the tank 11 is equal to the flow of solvent egressing therefrom, i.e. until the delivery throughput of the pump is equal to the solvent quantity per unit of time discharged from tank 11 into chamber or compartment 2.
  • the filter is prepared and with adjustment of the valve 13, the maximum pre-established level of solvent within the tank 11 is stabilized, it is possible to begin the first cleaning operation which consists in inserting the garments to be washed into the cage 17 and restarting the pump 5.
  • the subsequent cycle is prepared in exactly the same manner, except that the quantity of fossil meal inserted in the cage 17 is considerably less than in the preceding cycle when the fossil meal also served to form the main filter layers on the filter surfaces of the filter 9.
  • the heater 19 and the electric fan 22 are started and the delivery of cooling water for the refrigeration unit of the condenser 26 is opened.
  • the drying takes place with the orifice 20 closed and that is in closed circuit including the heater 19, the pipe 23, the tank 11, the pipe 24, the filter 25 then the condenser 26 and, as far as the air and gaseous solvent fractions are concerned, the electric fan 22 and again the heater 19.
  • the condensed fractions of the solvent pass from the collection chamber of the condenser 26, through the tube 27, the inspection point 28, the separator 29, the opened valve 30 and the pipe 31, to the reservoir 1.
  • phase of deodorization commences.
  • Such phase consists in causing hot air, drawn from the atmosphere, to circulate through the load of fabrics or garments which rotate inside the cleaning tank -11.
  • the discharge of the filter is repeated until, after a certain number of cleaning series, the distiller 40 is filled.
  • Partial regeneration of the solvent may easily be accomplished by actuating the distiller 40 and discharging the distillate into the reservoir 1, inside which the distillate mixes with the solvent portion, now contaminated, which is present.
  • the pump 5 is started after the opening of the valve 41, in order to discharge the residue of the solvent of the reservoir 1 into said distiller 40.
  • Said distiller 40 has a capacity which is equal to half the capacity of said reservoir 1.
  • a dry cleaning apparatus with at least one solvent storage container, a washing tank and relative washing cage, a circuit for circulating the solvent, recovery and regeneration circuits for the solvent, filter members, at least one pump for circulating the solvent, at least one source of hot air, at least one condenser and a distiller, wherein the circuit for circulating the solvent, the circuit for the regeneration of the solvent and the circuit for the recovery of the solvent have common circuit portions for at least two among said circuits and wherein, according to the improvement, said common circuit portions include said washing tank, valve means being provided for connecting said common circuit portions with the other portions of one among said circuits and with said solvent storage container, said common circuit portions including further at least one condenser connected with said distiller and having a discharge pipe connecting the condenser with said storage container, said discharge pipe having a valve interposed therein, a conduit connecting a portion of said discharge pipe between said condenser and said valve means with an upper zone of said washing tank and allowing passage of fluid from said discharge pipe portion towards said washing tank and preventing flow of fluid
  • An apparatus further comprising a separation device for separating water from the solvent and arranged in the circuit between said condenser and said discharge pipe portion connected with said conduit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Cleaning By Liquid Or Steam (AREA)
US721126A 1967-04-13 1968-04-12 Dry cleaning apparatus Expired - Lifetime US3557581A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT160767 1967-04-13

Publications (1)

Publication Number Publication Date
US3557581A true US3557581A (en) 1971-01-26

Family

ID=11101811

Family Applications (1)

Application Number Title Priority Date Filing Date
US721126A Expired - Lifetime US3557581A (en) 1967-04-13 1968-04-12 Dry cleaning apparatus

Country Status (6)

Country Link
US (1) US3557581A (enrdf_load_stackoverflow)
DE (1) DE1760193A1 (enrdf_load_stackoverflow)
ES (1) ES353079A1 (enrdf_load_stackoverflow)
FR (1) FR1563344A (enrdf_load_stackoverflow)
GB (1) GB1229845A (enrdf_load_stackoverflow)
YU (1) YU31822B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2511064A1 (de) * 1974-12-06 1976-06-10 Ama Universal Spa Wasch- und trockenanlage ohne absperrventile
US4769921A (en) * 1986-02-27 1988-09-13 Tsentralny Naucho-Issledovatelsky Institut Bytovogo Obsluzhivania Naselenia Process for recuperating of organic solvents in dry-cleaning machines
US4817296A (en) * 1986-12-16 1989-04-04 Kabakov Vladimir M Dry-cleaning machine for textiles
US20070006392A1 (en) * 2005-06-20 2007-01-11 Douglas James E System and method for dry cleaning articles
US11772200B2 (en) 2020-04-10 2023-10-03 Amnio Technology Llc Allograft optimization system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2038885B (en) * 1978-11-09 1983-07-20 Health Physics Systems Inc Method of and apparatus for decontaminating radioactive garments
DE3150015C2 (de) * 1981-12-17 1984-04-05 Walter 7300 Eßlingen Jost Verfahren zum chemischen Reinigen von Gegenständen aus Stoff und Reinigungsanlage zur Durchführung des Verfahrens
EP0082443B1 (de) * 1981-12-17 1985-10-16 Walter Jost Reinigungsanlage zum chemischen Reinigen von Gegenständen aus Stoff

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2511064A1 (de) * 1974-12-06 1976-06-10 Ama Universal Spa Wasch- und trockenanlage ohne absperrventile
US4769921A (en) * 1986-02-27 1988-09-13 Tsentralny Naucho-Issledovatelsky Institut Bytovogo Obsluzhivania Naselenia Process for recuperating of organic solvents in dry-cleaning machines
US4817296A (en) * 1986-12-16 1989-04-04 Kabakov Vladimir M Dry-cleaning machine for textiles
US20070006392A1 (en) * 2005-06-20 2007-01-11 Douglas James E System and method for dry cleaning articles
US8123819B2 (en) * 2005-06-20 2012-02-28 Greenearth Cleaning, Llc. System and method for dry cleaning articles
US20120260435A1 (en) * 2005-06-20 2012-10-18 Greenearth Cleaning, Llc System and method for dry cleaning articles
US8613804B2 (en) * 2005-06-20 2013-12-24 Greenearth Cleaning, Llc System and method for dry cleaning articles
US11772200B2 (en) 2020-04-10 2023-10-03 Amnio Technology Llc Allograft optimization system

Also Published As

Publication number Publication date
GB1229845A (enrdf_load_stackoverflow) 1971-04-28
FR1563344A (enrdf_load_stackoverflow) 1969-04-11
YU31822B (en) 1973-12-31
ES353079A1 (es) 1970-01-16
YU86568A (en) 1973-06-30
DE1760193A1 (de) 1972-03-02

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