EP0119315A2 - Appareil pour la production et pour le magasinage d'eau de chlore, notamment pour le blanchiment dans une machine à laver - Google Patents

Appareil pour la production et pour le magasinage d'eau de chlore, notamment pour le blanchiment dans une machine à laver Download PDF

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Publication number
EP0119315A2
EP0119315A2 EP83112779A EP83112779A EP0119315A2 EP 0119315 A2 EP0119315 A2 EP 0119315A2 EP 83112779 A EP83112779 A EP 83112779A EP 83112779 A EP83112779 A EP 83112779A EP 0119315 A2 EP0119315 A2 EP 0119315A2
Authority
EP
European Patent Office
Prior art keywords
vessel
water
chlorine
partition
passage
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.)
Withdrawn
Application number
EP83112779A
Other languages
German (de)
English (en)
Other versions
EP0119315A3 (fr
Inventor
Luigi Amadio
Roberto Sburlino
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.)
Industrie Zanussi SpA
Original Assignee
Industrie Zanussi 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 Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Publication of EP0119315A2 publication Critical patent/EP0119315A2/fr
Publication of EP0119315A3 publication Critical patent/EP0119315A3/fr
Withdrawn legal-status Critical Current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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/004—Washing machines, apparatus, or methods not otherwise provided for using chlorine generators
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters

Definitions

  • the present invention relates to apparatus for the production and storage of chlorine water, particularly for a bleaching and sterilizing treatment in a washing machine.
  • Described in Italian Patent Application No. 45738 A/81 is a laundry washing machine equipped with an electrolytic diaphragm cell for generating gaseous chlorine to be introduced into the washing water for obtaining an aquaeous chlorine solution, generally referred to as "chlorine water" which is useful for a bleaching treatment.
  • the gaseous chlorine produced by the electrolytic cell is caused to pass through a perforated tube so as to be introduced directly into the rinsing water supplied to the interior of the laundry washing machine in the form of small bubbles.
  • the cited Italian Patent Application thus attains the object of providing a system for the production of chlorine water within a laundry washing machine. There remains still the problem, however, to achieve a more uniform distribution of the gaseous chlorine in the water, and to accumulate a supply of chlorine water preparatory to its being required for use during the rinsing phase.
  • a main object of the invention is thus the provision of apparatus for the efficient and economical production of an aquaeous chlorine solution which is particularly useful for a bleachign and/or sterilizing treatment in a washing machine.
  • an aquaeous chlorine solution which is particularly useful for a bleachign and/or sterilizing treatment in a washing machine.
  • the absorption of gaseous chlorine in water is on the one hand the most simple and economical method for the production of chlorine water. Due to the limited solubility of gaseous chlorine in water, on the other hand, this method requires the employ of complicated apparatus of considerable dimensions and thus unsuitable for use in a washing machine.
  • a further object of the invention is therefore the provision of apparatus of the above defined type including the necessary safety provisions, inter alia for avoiding the loss of gaseous chlorine generated by the electrolytic cell.
  • a still further object of the invention is the provision of apparatus for the absorption of gaseous chlorine in water and for accumulating the thus formed chlorine water for subsequent use as dictated by the washing programme.
  • an apparatus of the above defined type comprising a closed outer vessel, conduits for the supply of water and for discharging chlorine water, conduits for supplying gaseous chlorine to the interior of said vessel, and elements mounted in the interior of said vessel for promoting contact between the gaseous chlorine and the water
  • said elements are in the form of perforated partitions disposed transversely of the dirdetion of the fluid flow, the surface area of said partitions being smaller than the cross-sectional area of said vessel so as to form at least one lateral passage between a free edge portion of each said partition and the adjacent interior wall portion of said vessel, each said partition being formed adjacent said lateral passage with a baffle portion extending downwards therefrom at right angles
  • said apparatus being further provided with means for controlling the water level within said vessel so as to avoid the loss of gaseous chlorine to the environment.
  • said control means comprise a pressostat and/or a conductivity water sensor or the like, and the surface of the vessel of the apparatus is formed with reinforcing ribs.
  • apparatus generally designated 1 comprises a cylindrical vessel 2 for contacting a liquid (tap water) and a gas (gaseous chlorine generated by an electrolytic cell installed in a washing machine).
  • a liquid tape water
  • a gas gas generated by an electrolytic cell installed in a washing machine
  • vessel 2 is not of critical importance.
  • the vessel may be of any suitable configuration permitting it to be be mounted, with the aid of conventional fastener means (not shown), within the housing of a laundry washing mashine or, depending on the employ of the apparatus, of a dishwashing machine.
  • the material of the vessel and of the other elements of the apparatus to be described is of a type that is resistant to the corrosive attack of chlorine, for instance polyethylene.
  • partitions 3 Interiorly of vessel 2 there is mounted a series of partitions 3 (cf. fig. 3) each of which is fixedly attached to the interior wall surface of vessel 2 along a certain portion of its periphery.
  • the surfaces of partitions 3 are formed with a plurality of perforations 4 having a diameter of about 1 to 3 mm for achieving a more intimate contact between the gas and the liquid.
  • the partitions 3 are disposed transversely of the longitudinal direction of vessel 2, and thus also transversely of the direction of fluid flow. Their surface area is smaller than the cross-sectional area of vessel 2 so as to leave an open space, i.e. a lateral passage 5 between the interior wall surface of vessel 2 and the free edge of each partition 3.
  • Adjacent passage 5 each partition is formed with a depending edge portion or baffle 6 extending downwards at right angles for detaining the gaseous chlorine so as to promote the formation of the aquaeous chlorine solution.
  • the partitions 3 are disposed one above the other within vessel 2 in such a manner that a closed partition wall portion is located upstream and downstream in alignment with each lateral passage 5.
  • Vessel 2 is closed, communicating with the exterior via a conduit 7 for the supply of tap water intended for absorbing the gaseous chlorine.
  • Conduit 7 is located at the top portion of vessel 2 and provided with a flow control valve 8.
  • a discharge conduit 9 for the liquid expelled by the gas, the latter being supplied to vessel.2 adjacent the bottom thereof through a perforated tube 10 located below the lowermost partition 3.
  • the bottom of vessel 2 is further provided with a chlorine water discharge conduit 11 suitably controlled by a-valve 12.
  • the material of which the apparatus according to the invention is made has also to be of a type capable of absorbing the energy developed by a possible explosion caused by the mixture Cl 2 + H 2 .
  • This material thus has to be corrosion-resistant and at the same time malleable and resilient, such as the above mentioned polyethylene or a similar composition.
  • the surface of vessel 2 is preferably formed with reinforcing ribs 13.
  • the above described apparatus is also provided with safety means for avoiding the escape of chlorine to the environment.
  • a pressostat 14 is disposed adjacent the bottom of vessel 2, or the top portion of the apparatus carries a conductivity sensor 15 or a similar device for detecting the presence of water in the upper portion of the apparatus.
  • the operation of the apparatus shown in fig. 1 is self- evident: After vessel 2 has been filled with water, for instance tap water or anteriorly treated water, the gas inlet is opened for introducing the gas in the form of small bubbles. During their ascent, the gas bubbles are caused to follow a non-linear path, resulting in an extended time for contact with the water for improved absorption. During their ascent, the gas bubbles are brought into contact with water having a continuously decreasing concentration of absorbed chlorine and thus capable of increasing absorption.
  • the described apparatus permits chlorine water to be produced at times other than during the rinsing phase, thanks to its capability of storing the solution for use at the appropriate time.
  • the embodiment of fig. 4 differs from the one shown in fig. 1 mainly by the fact that the vessel 2 is of substantially rectangular cross-sectional configuration with its greater dimension in the horizontal direction.
  • the outer configuration of the apparatus is the same as in the embodiment of fig. 1, while the partitions 3 are formed with a continuous depending edge portion 6 defining an annular passage 5 for each partition 3 in cooperation with the interior wall surface of vessel 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
EP83112779A 1982-12-23 1983-12-19 Appareil pour la production et pour le magasinage d'eau de chlore, notamment pour le blanchiment dans une machine à laver Withdrawn EP0119315A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8223770U IT8223770V0 (it) 1982-12-23 1982-12-23 Dispositivo per la produzione e l'accumulo di acqua di cloro, in particolare per le operazioni di candeggio nelle macchine lavatrici.
IT2377082U 1982-12-23

Publications (2)

Publication Number Publication Date
EP0119315A2 true EP0119315A2 (fr) 1984-09-26
EP0119315A3 EP0119315A3 (fr) 1986-02-05

Family

ID=11209830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112779A Withdrawn EP0119315A3 (fr) 1982-12-23 1983-12-19 Appareil pour la production et pour le magasinage d'eau de chlore, notamment pour le blanchiment dans une machine à laver

Country Status (3)

Country Link
EP (1) EP0119315A3 (fr)
ES (1) ES275475Y (fr)
IT (1) IT8223770V0 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1434868A (fr) * 1964-05-28 1966-04-08 Celanese Corp équipement de traitement et son procédé de fabrication
US3445182A (en) * 1965-02-15 1969-05-20 Universal Oil Prod Co Method for removing chlorine and entrained aluminum chloride particles from a waste gas stream
EP0083740A1 (fr) * 1981-12-14 1983-07-20 INDUSTRIE ZANUSSI S.p.A. Machine à laver avec pile électrochimique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1434868A (fr) * 1964-05-28 1966-04-08 Celanese Corp équipement de traitement et son procédé de fabrication
US3445182A (en) * 1965-02-15 1969-05-20 Universal Oil Prod Co Method for removing chlorine and entrained aluminum chloride particles from a waste gas stream
US3582262A (en) * 1965-02-15 1971-06-01 Universal Oil Prod Co Multiple stage method for removing chlorine and entrained aluminum chloride particles from a waste gas stream
EP0083740A1 (fr) * 1981-12-14 1983-07-20 INDUSTRIE ZANUSSI S.p.A. Machine à laver avec pile électrochimique

Also Published As

Publication number Publication date
IT8223770V0 (it) 1982-12-23
ES275475U (es) 1984-08-01
EP0119315A3 (fr) 1986-02-05
ES275475Y (es) 1985-03-16

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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18D Application deemed to be withdrawn

Effective date: 19861010

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SBURLINO, ROBERTO

Inventor name: AMADIO, LUIGI