EP2586352A1 - Unité pour laver des articles de cuisine et similaires - Google Patents

Unité pour laver des articles de cuisine et similaires Download PDF

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Publication number
EP2586352A1
EP2586352A1 EP11425259.6A EP11425259A EP2586352A1 EP 2586352 A1 EP2586352 A1 EP 2586352A1 EP 11425259 A EP11425259 A EP 11425259A EP 2586352 A1 EP2586352 A1 EP 2586352A1
Authority
EP
European Patent Office
Prior art keywords
chamber
unit according
liquids
supply circuit
sanitizing
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Withdrawn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
EP11425259.6A
Other languages
German (de)
English (en)
Inventor
Davide Fornasari
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.)
E' COSI' Srl
Original Assignee
E' COSI' Srl
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 E' COSI' Srl filed Critical E' COSI' Srl
Priority to EP11425259.6A priority Critical patent/EP2586352A1/fr
Publication of EP2586352A1 publication Critical patent/EP2586352A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4463—Multi-dose dispensing arrangements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4236—Arrangements to sterilize or disinfect dishes or washing liquids

Definitions

  • the present invention relates to a unit for washing kitchenware and the like.
  • These appliances are provided typically with an internal washing chamber, which is capable of accommodating a certain number of items of kitchenware, which optionally can be placed in adapted holder baskets.
  • the chamber is then affected by the operation of a plurality of nozzles, some of which are designed to spray a mixture of water and detergent to wash the kitchenware, whereas other nozzles allow subsequent rinsing by means of pressurized hot water (possibly with the addition of rinse aid).
  • the procedure that is commonly adopted provides for introducing into the washing chamber a product that has both detergent and sanitizing properties, is typically chlorine-based and stored in a respective tank. From the tank, the product is drawn and collected in an open-top reservoir, in which it is heated to be then sent to the chamber that accommodates the kitchenware by means of a respective pump.
  • this rinse aid is contained in an adapted tank and is drawn from there by an additional pump to be mixed with the rinsing water.
  • Chlorine-based products (which are widely used since they are substantially the only ones, among those that can be used for the specific application being considered, that indeed have both sanitizing and detergent properties) are pollutants, and therefore the management of wastewater at the end of washing and rinsing is problematic, since the risk of releasing potentially toxic substances into the environment is significant.
  • the aim of the present invention is to solve the drawbacks described above, by providing a unit that can wash and sanitize kitchenware and the like while respecting the environment and limiting polluting waste.
  • an object of the invention is to provide a unit that is suitable for washing kitchenware in an industrial and professional environment.
  • Another object of the invention is to provide a unit that can ensure optimum washing and sanitizing of kitchenware and the like.
  • a further object of the invention is to provide a unit that ensures high reliability in operation.
  • Another object of the invention is to provide a unit that can be obtained easily starting from commonly commercially available elements and materials.
  • Another object of the invention is to provide a unit that has low costs and is safe in application.
  • a unit for washing kitchenware and the like comprising means for the controlled spraying of a chamber, suitable to accommodate kitchenware and the like, for washing and/or sanitizing it, characterized in that said means comprise a first tank for a predefined detergent liquid and a second tank for a predefined sanitizing liquid, functionally associated with respective independent elements for drawing and feeding the liquids, a corresponding branch of a supply circuit extending from each one of said tanks and being connected to said chamber for mixing said liquids substantially upon their entry into said chamber.
  • a unit according to the invention is particularly suitable for washing kitchenware, such as plates, glasses, cups, cutlery, pots and the like, both in a domestic environment and in an industrial/professional environment.
  • a preferred application of the present invention is the use of the unit 1 for washing and sanitizing kitchenware in an industrial environment, and therefore the unit 1 can be used by canteens and kitchens of restaurants (and/or in similar facilities).
  • unit 1 for washing and/or sanitizing kitchenware in a domestic environment and/or for washing different objects according to the specific requirements is not excluded and is in any case within the protective scope claimed herein.
  • the unit 1 comprises means for the controlled spraying of a chamber 2, which is suitable for accommodating kitchenware and the like, for washing and/or sanitizing it.
  • the chamber 2 (which is typically shaped like a parallelepiped and is connected to the water mains so that it can be treated by jets of rinsing water, or during washing) can also contain kitchenware containment baskets, so as to facilitate its placement in a stable position, within the chamber 2, and to ensure that such position is maintained during the washing/sanitizing steps.
  • the means comprise a first tank 3 for a predefined detergent liquid (for example of the type usually commercially available) and a second tank 4 for a predefined sanitizing liquid, which are functionally associated with respective independent elements for drawing and transferring such liquids.
  • a corresponding branch 5 of a supply circuit 6 connected to the chamber 2 further extends from each tank 3, 4 so as to allow mixing of the liquids substantially upon their entry into the chamber 2.
  • the predetermined sanitizing liquid is based on oxygen and, due to the properties of this element, is capable of ensuring a high sanitizing effectiveness. Furthermore, this effectiveness is achieved while respecting the environment, since oxygen, once it is released into the environment after use, is not a dangerous pollutant (as instead is chlorine, used in sanitizing liquids, and in kitchenware washing assemblies of the known type).
  • the predetermined sanitizing liquid comprises hydrogen peroxide, in a percentage comprised preferably between 50% and 70%, where the percentages refer to the overall weight (and for example said predetermined sanitizing liquid could be of the type commercially distributed by the Applicant under the trade name DOX).
  • the predefined detergent liquid comprises sodium hydroxide, in a percentage comprised between 5% and 15%, where the percentages refer to the total weight.
  • the detergent liquid can be of a type commercially distributed by the Applicant, for example the detergent liquid known by the trade name MATIC PLUS.
  • the supply circuit 6 comprises a collection reservoir 7, which is interposed between the branches 5 and the chamber 2, for mixing the above-mentioned liquids substantially only upon their entry into the chamber 2.
  • the liquids in fact mix in the reservoir 7 (or proximate thereto) and a terminal duct 8 extends from the reservoir 7 and leads to at least one nozzle 9, which faces the chamber 2.
  • the unit 1 has, as shown in the figure, a plurality of nozzles 9, which are distributed conveniently to facilitate optimum spraying of the chamber 2 and therefore complete washing/sanitizing of the kitchenware.
  • each branch 5 of the supply circuit 6 leads to at least one respective inlet hole 10, which faces the collection reservoir 7.
  • the liquids that arrive from the respective tanks 3, 4 can thus be sprayed separately in the reservoir 7 through the respective holes 10, so as to be mixed upon entry into the chamber 2 (which is separated from the reservoir 7 only by the terminal duct 8).
  • each branch 5 merges with a common portion 11 of the supply circuit 6.
  • the common portion 11 in turn leads to a common inlet 12, which faces the collection reservoir 7, so that the mixing, in this embodiment, occurs at the common portion 11 and therefore proximate to their entry into the reservoir 7 and therefore into the chamber 2.
  • the withdrawal and feeding elements comprise a first dosage pump 13 and a second dosage pump 14 (for example the type of peristaltic pumps), which are associated respectively with the first tank 3 and with the second tank 4 and are arranged along the corresponding branch 5, so as to ensure the independent drawing of the corresponding liquid and its feeding to the reservoir 7 and thus to the chamber 2.
  • a first dosage pump 13 and a second dosage pump 14 for example the type of peristaltic pumps
  • the spraying means also comprise a containment vessel 15 for a predefined rinse aid, which is associated with respective drawing and feeding elements: the vessel 15 is connected to an additional branch 5 of the supply circuit 6, which leads to the chamber 2.
  • the supply circuit 6 comprises a boiler 16, which is connected to the water mains and interposed between the containment vessel 15 and the chamber 2 and is connected to the water mains: the boiler 16 can thus heat the solution of mains water and rinse aid, which is then sent, thanks to the mains pressure, to the chamber 2.
  • the predefined rinse aid comprises ionic and non-ionic surfactants, in a percentage, relative to the total weight, of less than 5%, citric acid, polycarboxylate and coloring agents.
  • a third dosage pump 17 also for example of the type of a peristaltic pump, which is associated with the vessel 15 and arranged along the corresponding branch 5, in order to facilitate withdrawal of the rinse aid and its subsequent feeding to the chamber 2.
  • the first dosage pump 13, the second dosage pump 14 and the third dosage pump 17 are controlled individually by a respective electronic control unit (or similar device).
  • the activation of each one of these programs can thus determine the feeding of the liquids and/or of the rinse aid according to predefined steps and times, according to sequential logic criteria or even simultaneously, according to the specific requirements.
  • the detergent liquid and the sanitizing liquid are thus introduced beforehand into the reservoir 7 (by means of the first dosage pump 13 and the second dosage pump 14), where a resistance heater heats them: from there, as already noted, the two mixed liquids follow the terminal duct 8 and enter the chamber 2 through the nozzles 9, for example through the action of a washing pump 18.
  • water is drawn from the water mains according to known methods during the steps of operation in which it is possibly required.
  • the choice to adopt distinct branches 5 thus allows the use of different sanitizing liquids with respect to the ones typically used, which are selected because they are capable of bonding with the detergent liquids. Therefore, with the unit 1 according to the invention it is possible to adopt sanitizing liquids that are highly effective and have a low pollutant content, such as oxygen-based ones, which cannot be used in known types of washing units, which are provided with a single tank (and with a single inlet branch) for liquids having both a sanitizing and a detergent action.
  • the unit 1 according to the invention certainly suitable for industrial and professional uses, has a high sanitizing capacity, limiting polluting waste significantly (thanks to the properties of oxygen).
  • the detergent liquid and the sanitizing liquid mix at the common portion 11 and proximate to their entry into the reservoir 7 and therefore to the chamber 2.
  • the unit according to the invention fully achieves the intended aim, since the adoption of two distinct tanks, respectively for a predefined detergent liquid and for a predefined sanitizing liquid, functionally associated with respective independent elements for drawing and feeding the liquids, with corresponding branches of a supply circuit, connected to the kitchenware washing chamber, which extend from the tanks, allows mixing of the liquid substantially upon their entry into the chamber and therefore makes it possible to wash and sanitize kitchenware and the like while respecting the environment and limiting polluting waste.
  • the materials used, as well as the dimensions, may be any according to requirements and to the state of the art.

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  • Washing And Drying Of Tableware (AREA)
EP11425259.6A 2011-10-24 2011-10-24 Unité pour laver des articles de cuisine et similaires Withdrawn EP2586352A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11425259.6A EP2586352A1 (fr) 2011-10-24 2011-10-24 Unité pour laver des articles de cuisine et similaires

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11425259.6A EP2586352A1 (fr) 2011-10-24 2011-10-24 Unité pour laver des articles de cuisine et similaires

Publications (1)

Publication Number Publication Date
EP2586352A1 true EP2586352A1 (fr) 2013-05-01

Family

ID=45346402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11425259.6A Withdrawn EP2586352A1 (fr) 2011-10-24 2011-10-24 Unité pour laver des articles de cuisine et similaires

Country Status (1)

Country Link
EP (1) EP2586352A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106377215A (zh) * 2016-11-30 2017-02-08 南京雷明医疗器械有限公司 一种锅具自动清洗装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694402A (en) * 1950-04-17 1954-11-16 Richard W Phillips Liquid metering mechanism in combination with container cleansing and sanitizing machnes
EP0048519A1 (fr) * 1980-09-24 1982-03-31 Unilever N.V. Appareil et procédé pour nettoyer mécaniquement la vaisselle
DE9007642U1 (fr) * 1990-06-09 1993-07-15 Henkel Kgaa, 4000 Duesseldorf, De
DE102005062479A1 (de) * 2005-12-27 2007-07-05 BSH Bosch und Siemens Hausgeräte GmbH Dosiervorrichtung für die Zugabe eines Zuschlagmittels in einen Behandlungsraum und Geschirrspülmaschine mit einer Dosiervorrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2694402A (en) * 1950-04-17 1954-11-16 Richard W Phillips Liquid metering mechanism in combination with container cleansing and sanitizing machnes
EP0048519A1 (fr) * 1980-09-24 1982-03-31 Unilever N.V. Appareil et procédé pour nettoyer mécaniquement la vaisselle
DE9007642U1 (fr) * 1990-06-09 1993-07-15 Henkel Kgaa, 4000 Duesseldorf, De
DE102005062479A1 (de) * 2005-12-27 2007-07-05 BSH Bosch und Siemens Hausgeräte GmbH Dosiervorrichtung für die Zugabe eines Zuschlagmittels in einen Behandlungsraum und Geschirrspülmaschine mit einer Dosiervorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106377215A (zh) * 2016-11-30 2017-02-08 南京雷明医疗器械有限公司 一种锅具自动清洗装置

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