EP0450574B1 - Circuit auxiliaire pour filtres dans les machines à nettoyer à sec - Google Patents

Circuit auxiliaire pour filtres dans les machines à nettoyer à sec Download PDF

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Publication number
EP0450574B1
EP0450574B1 EP91105199A EP91105199A EP0450574B1 EP 0450574 B1 EP0450574 B1 EP 0450574B1 EP 91105199 A EP91105199 A EP 91105199A EP 91105199 A EP91105199 A EP 91105199A EP 0450574 B1 EP0450574 B1 EP 0450574B1
Authority
EP
European Patent Office
Prior art keywords
circuit
drying
drum
chamber
stack
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
EP91105199A
Other languages
German (de)
English (en)
Other versions
EP0450574A3 (en
EP0450574A2 (fr
Inventor
Gualtiero Ghelardini
Tommaso Arbizzani
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.)
Sodibo SpA
Original Assignee
Sodibo SpA
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 Sodibo SpA filed Critical Sodibo SpA
Publication of EP0450574A2 publication Critical patent/EP0450574A2/fr
Publication of EP0450574A3 publication Critical patent/EP0450574A3/en
Application granted granted Critical
Publication of EP0450574B1 publication Critical patent/EP0450574B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06F43/081—Reclaiming or recovering the solvent from a mixture of solvent and contaminants, e.g. by distilling
    • D06F43/085—Filtering arrangements; Filter cleaning; Filter-aid powder dispensers
    • 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 present invention relates to an auxiliary circuit for filters in dry-cleaning machines.
  • the washing liquid composed of solvents and water
  • a filter known as needle trap filter
  • Fluff from the washed fabrics accumulates in said filter, and must be removed periodically in order to restore the filter effectiveness; however, when the accumulated fluff is to be removed, it is impregnated with solvent and therefore cannot be disposed immediately: one must in fact bear in mind that there are specific and stringent rules governing the disposal of waste impregnated with solvents.
  • the aim of the present invention is to obviate the above mentioned disadvantage, i.e. to provide an auxiliary needle trap circuit in dry-cleaning machines which eliminates moisture and solvent from the collected fluff, so as to make the dried fluff easily disposable and so as to 5 avoid the persistence of moisture and solvent inside the machine after the washing cycle is completed.
  • auxiliary circuit for a filter for example a so-called needle trap filter, according to the invention, is generally indicated by the reference numeral 1.
  • the circuit 1 is installed in a dry-cleaning machine which comprises a washing drum 3, a stack 4 for the outflow of air from the drum and a stack 5 for the inflow of air into said drum; said stacks are mutually connected by a condensation chamber 6 in which a fan 7, driven by a motor 8, operates; an evaporator 9 of a refrigeration device suitable for separating the solvent and the moisture present in the air operates inside the chamber 6, and the condenser 10 of said refrigeration device is installed in the stack 5.
  • a dry-cleaning machine which comprises a washing drum 3, a stack 4 for the outflow of air from the drum and a stack 5 for the inflow of air into said drum; said stacks are mutually connected by a condensation chamber 6 in which a fan 7, driven by a motor 8, operates; an evaporator 9 of a refrigeration device suitable for separating the solvent and the moisture present in the air operates inside the chamber 6, and the condenser 10 of said refrigeration device is installed in the stack 5.
  • the base of the drum is connected in a known manner by means of a pipe 11 to the needle trap filter 2, which is connected by means of a pipe 12 to a pump B; said pipe 12 is cutoff by an electric valve 12a.
  • the needle trap filter 2 is constituted, in a known manner, by an upper half-chamber 14 and by a lower half-chamber 15 which are separated by a filtration sector 16; the upper half-chamber is open upward, and its upper inlet is closed by a lid 14a which can be removed for the periodic maintenance of the trap.
  • the letter P indicates the fluff which collects in the needle trap.
  • the circuit according to the invention is obtained by connecting the lower half-chamber 15 of the needle trap and the stack 4 by means of a duct 17; thus, during the drying cycle, part of the air forced by the fan 7 can be conveyed through the trap filter 2; moisture and solvent are thus progressively removed from the fluff and are then condensed by 9 and collected.
  • the fluff contained in 2 is therefore perfectly dry; it is thus possible to remove it through the upper opening of the needle trap and dispose it.
  • a valve 17a can be arranged on the duct 17 and can be actuated either manually or electrically to dry the fluff only when required instead of at the end of each wash.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Drying Of Solid Materials (AREA)
  • Detergent Compositions (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Claims (3)

  1. Circuit auxiliaire pour filtres dans des machines de nettoyage à sec comportant un tambour de lavage (3), un circuit de séchage dudit tambour de lavage ayant un conduit d'échappement (4) pour l'échappement de l'air venant du tambour et un conduit d'admission (5) pour l'admission de l'air dans ledit tambour, un circuit de condensation d'air de séchage (6-10) connectant ledit conduit d'échappement (4) et ledit conduit d'admission (5), des moyens de ventilation forcée d'air (7) fonctionnant dans ledit circuit de condensation d'air de séchage pour forcer l'air de séchage à traverser ledit tambour (3), ledit circuit de séchage et ledit circuit de condensation (6-10), et un filtre de piège à aiguilles (2) pour recueillir la bourre entraînée par le liquide de lavage s'échappant du tambour (3), ledit circuit auxiliaire étant caractérisé en ce qu'il comprend : une conduite (17) connectant la base dudit filtre de piège à aiguilles (2) audit conduit d'échappement (14) pour former un circuit de séchage de la bourre recueillie dans ledit filtre de piège à aiguilles (2), ledit circuit étant disposé en parallèle avec ledit circuit de séchage dudit tambour de lavage (2), moyennant quoi une partie de l'air forcé est transportée pendant le cycle de séchage de manière à passer à travers ledit filtre de piège à aiguilles (2) pour sécher la bourre qui y est recueillie et en outre pour revenir dans le conduit d'échappement (4) dudit circuit de séchage aux fins de condensation et de séparation de l'humidité et des solvants résiduels.
  2. Circuit auxiliaire selon la revendication 1, caractérisé en ce que ladite conduite (17) comporte une valve de coupure (17a).
  3. Circuit auxiliaire selon la revendication 1 ou 2, caractérisé en ce que ledit filtre de piège à aiguilles a une demi-chambre supérieure (14) et une demi-chambre inférieure (15), ladite demi-chambre supérieure et ladite demi-chambre inférieure étant séparées par un secteur de filtration (16), ladite conduite (17) étant connectée à ladite demi-chambre inférieure, un tuyau (12) pour l'évacuation du liquide de lavage étant de plus connecté à ladite chambre inférieure (15), ledit tuyau (12) étant isolé par une valve de coupure électrique (12a).
EP91105199A 1990-04-06 1991-04-02 Circuit auxiliaire pour filtres dans les machines à nettoyer à sec Expired - Lifetime EP0450574B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT3437A IT1238545B (it) 1990-04-06 1990-04-06 Circuito ausiliario per il filtro prendispilli in macchine lavasecco.
IT343790 1990-04-06

Publications (3)

Publication Number Publication Date
EP0450574A2 EP0450574A2 (fr) 1991-10-09
EP0450574A3 EP0450574A3 (en) 1992-12-02
EP0450574B1 true EP0450574B1 (fr) 1997-02-12

Family

ID=11107363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105199A Expired - Lifetime EP0450574B1 (fr) 1990-04-06 1991-04-02 Circuit auxiliaire pour filtres dans les machines à nettoyer à sec

Country Status (3)

Country Link
EP (1) EP0450574B1 (fr)
DE (1) DE69124634T2 (fr)
IT (1) IT1238545B (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE19986E (en) * 1926-08-30 1936-05-26 Dry cleaning apparatus
FR2494316A1 (fr) * 1980-11-18 1982-05-21 Mordelet Francis Procede de desodorisation pour machine de nettoyage a sec
EP0082443B1 (fr) * 1981-12-17 1985-10-16 Walter Jost Appareillage de nettoyage à sec pour articles textiles
DE3671261D1 (de) * 1985-02-14 1990-06-21 Walter Jost Reinigungsmaschine zum chemischen reinigen von gegenstaenden aus stoff.

Also Published As

Publication number Publication date
DE69124634T2 (de) 1997-06-05
EP0450574A3 (en) 1992-12-02
EP0450574A2 (fr) 1991-10-09
IT9003437A1 (it) 1991-10-06
IT9003437A0 (it) 1990-04-06
IT1238545B (it) 1993-08-18
DE69124634D1 (de) 1997-03-27

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