WO2015078653A1 - Appareil ménager à circulation d'eau pourvu d'un réservoir destiné au stockage d'eaux grises - Google Patents

Appareil ménager à circulation d'eau pourvu d'un réservoir destiné au stockage d'eaux grises Download PDF

Info

Publication number
WO2015078653A1
WO2015078653A1 PCT/EP2014/073348 EP2014073348W WO2015078653A1 WO 2015078653 A1 WO2015078653 A1 WO 2015078653A1 EP 2014073348 W EP2014073348 W EP 2014073348W WO 2015078653 A1 WO2015078653 A1 WO 2015078653A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
appliance according
storage container
household appliance
conducting
Prior art date
Application number
PCT/EP2014/073348
Other languages
German (de)
English (en)
Inventor
Antonio BARRADO FRANCO
Andreas Bischof
Andreas Hanau
Hartmut Schaub
Original Assignee
BSH Hausgeräte GmbH
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 BSH Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Publication of WO2015078653A1 publication Critical patent/WO2015078653A1/fr

Links

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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/20—Arrangements for water recovery
    • 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
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water

Definitions

  • the invention relates to a water-conducting household appliance with a storage container for storing greywater and a device for microbial reduction of the gray water stored in the storage tank.
  • biofilms consist of organic substances such as microorganisms and nutrients.
  • a water-conducting household appliance with a storage container which serves to store the gray water obtained in the washing or rinsing process, to use it in a later washing or rinsing cycle, it may lead to the formation of biofilms in the storage container ,
  • Document EP 2 314 753 A1 describes a method for carrying out a rinse cycle during a washing process in a washing machine, in which the water is pumped over a circulation circuit in the rinse cycle.
  • the water in the recirculation outside the wash tank is irradiated with ultraviolet light to achieve a hygienic effect even at low washing temperatures and without the use of bleaching agents.
  • the addition of fabric softener is preferably after a certain time rinsed without fabric softener and the water was pumped while the fabric softener causes turbidity of the rinse water, which reduces the effect of UV irradiation and thus the hygiene effect. From US Patent 5,868,937 a method and apparatus for treating and reusing wastewater is known.
  • a circulation pump which promotes via a filter element with high capacity wastewater in an intermediate container. From the intermediate tank, the wastewater can return be pumped or pumped into a laundry drum or the like. Furthermore, an additional filter device is provided, from which water can be filtered from the intermediate container.
  • DE 197 09 085 A1 discloses a method for washing laundry, in which the washing water is collected in an intermediate container, filtered and collected in a memory.
  • U.S. Patent 5,928,490 discloses a process and apparatus for commercial laundries with a closed loop water circuit. To compensate for water losses in the water cycle a refill tank is provided, the water is added by an electrolysis cell with an oxidizing agent.
  • the object of the present invention is to provide an improved water-conducting household appliance with a storage container for storing greywater and a device for reducing the germ of the gray water stored in the storage container.
  • the invention thus relates to a water-conducting household appliance with a storage container for storing gray water and a device for germ reduction of gray water stored in the storage container, in which the device for microbial reduction is disposed within the storage container, and wherein the means for microbial reduction disinfection unit for disinfection the stored gray water and a flow generator for generating a flow of the stored gray water within the storage container comprises.
  • a water-conducting household appliance a device that is used for household management, and in the operation of water is used.
  • the water-bearing household appliance is a A household appliance of the so-called "white goods", such as a washing machine, a washer-dryer or a dishwasher, for example, is a domestic appliance in which the storage container is part of the domestic appliance.
  • the storage container may also be part of the housing, It is also possible for the storage container to be arranged on the outside of the housing and fixedly connected to the housing.
  • a water-conducting household appliance with a storage container is in any case understood to mean no commercial cleaning system. which has a separately prepared storage container.
  • greywater is understood to mean a slightly polluted wastewater, as is the case, for example, in the washing or rinsing process of a washing machine or a dishwashing machine.
  • grey water For use in a later washing or rinsing cycle of a domestic appliance, the clear water produced by the treatment of gray water should be hygienically clean
  • the water-conducting household appliance according to the invention has the advantage that the gray water is processed directly in the storage tank. In this way, it is not necessary to remove the greywater for treatment from the storage tank and to supply it to a disinfection unit arranged outside the storage tank, thereby eliminating the need for a pump and corresponding connecting lines This has the additional advantage that no leaks can occur in such connecting lines or their connection points with the storage container.
  • power supply lines and / or signal lines of the device for germ reduction are guided through walls of the storage container.
  • Power supply lines and / or signal lines can be made integrated, for example, in an injection molding in plastic walls of the storage container.
  • the disinfection unit preferably uses a physical method or an electrochemical method or a catalytic method for disinfecting the gray water. Such a method can be specifically controlled in particular, in contrast to simple disinfecting coatings of walls of the storage container. Thus, the disinfection process of the gray water via a controller or possibly even a control can be influenced, in particular depending on device parameters and / or measured values.
  • the disinfection unit is an electrolysis cell or a UVC emitter.
  • the disinfecting action can be achieved electrochemically by anodic oxidation.
  • hydroxyl radicals can be generated at anodes, which are formed, for example, as boron-doped diamond electrodes. The disinfecting effect is that these hydroxyl radicals damage cell membranes of microorganisms, resulting in the death of microorganisms.
  • UVC emitter that is to say an ultraviolet emitter which uses the short-wave region C (about 100-280 nm) of the ultraviolet radiation
  • the cell structures or the genetic material of microorganisms are destroyed by the UVC rays, which likewise leads to the death of the microorganisms ,
  • the flow generator uses an electromechanical method for generating flow.
  • the flow generator is a stirring apparatus or a pump. In this way, a particularly rapid circulation of the gray water stored in the storage tank can be achieved.
  • the electromechanical drive is designed in particular liquid-tight, so that it can be arranged within the storage container.
  • the flow generator uses an electrochemical method for generating flow.
  • the flow generator is formed by at least one tube, which is arranged within the storage container. The flow is generated in this case by gas bubbles flowing through the tube.
  • the tube is in the Storage container arranged vertically, so that the gas bubbles in the tube can rise due to their buoyancy.
  • gas bubbles the diameter of which correspond to the tube inner diameter, push parts of the liquid in front of it as it ascends through the tube, so that liquid flows from below into the tube.
  • the gas bubbles are generated by the disinfection unit.
  • the disinfection unit is designed, for example, as an electrolytic cell or equipped with an electrolysis cell, then the gas produced by the electrolysis can be introduced into the tube for generating the flow.
  • the disinfecting unit has an ozone generator, the generated ozone may also be introduced into the tube for generating the flow.
  • the gas can thus fulfill two functions. On the one hand, the gas is used to disinfect the gray water, on the other hand, the gas is used for flow generation. In order to mix the gas with the gray water, static mixers may be mounted in the tube. In this way, the dissolved in gray water amount of gas can be increased, which also increases the disinfecting effect of the gas.
  • the storage container has at least one inner surface containing a catalytically active substance, wherein the catalytically active substance is a polyoxometalate.
  • the inner surface comes in contact with the gray water during operation of the household appliance.
  • Polyoxometallates are inorganic metal-oxygen clusters. They generally have polyatomic anions composed of three or more transition metal oxyanions, in particular tungstate, molybdate, vanadate, niobate, and / or tantalate, bridged by oxygen atoms. Polyoxometalates can form a large three-dimensional network structure with defined oligomeric or polymeric structural units.
  • the term "polyoxometalate” as used herein includes both salts of the polyacids and the corresponding polyacids themselves.
  • oxygen radicals or .alpha. Radicals
  • oxygen radicals are generally formed in the presence of an oxidizing agent such as oxygen, hydrogen peroxide or ozone Owing to their chemical reactivity, these oxygen radicals can in particular decompose organic compounds and are therefore harmful to microorganisms, so that organic substances in the gray water, the polyoxometalate coated inner surface of the Storage container is brought into contact with degraded and thus counteracted biofilm.
  • the polyoxometalate In the oxidation reaction, the polyoxometalate generally serves as an oxidation catalyst which works together with an oxidizing agent.
  • the disinfection unit has, for example, an ozone generator.
  • the disinfection unit is mechanically connected to the flow generator.
  • the disinfecting unit with the flow generator can be moved by the greywater stored in the storage tank, so that the gray water reaches the effective area of the disinfecting unit in an effective manner.
  • the household appliance has a program control, which is designed to control the device for germ reduction.
  • the device for germ reduction by this program control can be switched on or off.
  • the components of the device for germ reduction that is for the disinfection unit and for the flow generator.
  • FIG. 1 shows a storage container with a first embodiment of a device according to the invention for germ reduction;
  • FIG 3 shows a storage container with a second embodiment of a device according to the invention for germ reduction.
  • FIG. 1 shows a schematic representation of the presently relevant parts of an embodiment of a water-conducting household appliance according to the invention in the form of a washing machine.
  • the washing machine of the embodiment shown in Figure 1 comprises a tub 1, in which a drum 2 is rotatably mounted about a rotation axis 3 and driven by a drive motor 14.
  • the axis of rotation 3 of the drum 2 is directed from the horizontal by a small angle (eg 13 °) upwards in front, so that easier access and insight into the interior of the drum 2 is given.
  • the washing machine also has a water inlet system comprising a water connection fitting for the domestic water network 8, an electrically controllable valve 9 and a supply line 10 to the tub 1, which is guided via an insufflation 1 1, from which the feed liquid can carry detergent portions into the tub 1 ,
  • a heating device 13 for heating the liquid in the tub 1 is arranged in the tub 2.
  • the washing machine has a storage tank 20 in which greywater in the form of rinsing water used in rinsing the laundry can be stored from different rinses.
  • a pump 16 With a pump 16, the greywater contained in the tub 1 and the drum 2 can be pumped into the storage container 20.
  • a device for micro-reduction 15 is arranged, which comprises a disinfection unit 17 and a flow generator 18.
  • the disinfection unit 17 is used for disinfecting the stored gray water.
  • the flow generator 18 a flow of the stored gray water within the storage container 20 is generated, so that the gray water completely comes into the sphere of action of the disinfection unit 17.
  • the treated with the help of the device for germ reduction 15 gray water can be used for a later wash.
  • the storage container 20 is connected via a line ("supply line for rinsing liquid") 21 to the valve 9, which also regulates the fresh water supply, to convey the gray water from the storage container 20 via the line 21 to a conveyor, for example in the form of a further pump
  • the valve 9, the heater 13, the pump 16 and the germ reduction device 15 may be controlled by a program controller 12 in response to a program schedule corresponding to a timing program and / or to the achievement of certain measurement values can be bound within the washing machine by parameters such as liquor level, liquor temperature, rotational speed of the drum 2, etc.
  • the germ reduction device 15 is connected to the program control via a power supply and / or signal line 22, which passes through a wall of the storage tank 20 is guided.
  • FIG. 2 shows the storage container 20 with a first embodiment of the germ reduction device 15.
  • a flow generator 18 here a arranged within the storage container 20 agitator 23 is provided.
  • the electromechanical drive (not shown) of this stirring apparatus 23 is fixed, for example, to one of the walls of the storage container 20.
  • the gray water is circulated in the storage tank 20 and the disinfection unit 17th past.
  • the disinfection unit 17 may also be mechanically connected to the stirring apparatus 23 and be moved with the stirring apparatus 23 through the gray water.
  • FIG. 3 shows the storage container 20 with a second embodiment of the germ reduction device 15.
  • tube 24 is provided as a flow generator 18, which dips completely into the gray water.
  • gas is introduced or generated, which rises in the form of gas bubbles in the tube 24 upwards. Due to the rising gas bubbles, a flow of gray water is generated in the tube 24, so that greywater flows out of the upper end of the tube 24 and from the region outside the tube 24 greywater flows into the lower end of the tube 24.
  • the disinfection unit 17 is connected to the tube 24 in such a way that the gray water flowing through the tube 24 reaches the area of action of the disinfection unit 17 and is disinfected in this way.
  • the tube 24 may, for example, have an opening through which the disinfection unit 17 projects into the tube 24 or the disinfection unit 17 may also be arranged inside the tube 24. Alternatively, the tube 24 may pass through the disinfection unit 17 or may be partially formed by the disinfection unit 17.
  • the gas flowing through the tube 24 may be generated, for example, by an electrolytic cell.
  • the gas can be formed by the disinfection unit 17 and introduced into the tube 24 via a feed line 25.
  • the gas itself can also have a disinfecting effect.
  • the gray water mixed in this way also has a disinfecting effect on all walls of the storage container 20 that are in contact with the gray water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

Appareil ménager à circulation d'eau pourvu d'un réservoir (20) destiné au stockage d'eaux grises et d'un dispositif de réduction des germes (15) présents dans les eaux grises stockées dans le réservoir de stockage (20). Ledit dispositif de réduction des germes (15) est situé à l'intérieur du réservoir de stockage (20) et comporte une unité de désinfection (17) destinée à désinfecter les eaux grises stockées et un générateur de flux (18) destiné à générer, à l'intérieur du réservoir de stockage (20), un flux dans les eaux grises stockées.
PCT/EP2014/073348 2013-11-29 2014-10-30 Appareil ménager à circulation d'eau pourvu d'un réservoir destiné au stockage d'eaux grises WO2015078653A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013224520.3 2013-11-29
DE102013224520.3A DE102013224520B4 (de) 2013-11-29 2013-11-29 Wasserführendes Haushaltsgerät mit einem Speicherbehälter zur Speicherung von Grauwasser

Publications (1)

Publication Number Publication Date
WO2015078653A1 true WO2015078653A1 (fr) 2015-06-04

Family

ID=51842544

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/073348 WO2015078653A1 (fr) 2013-11-29 2014-10-30 Appareil ménager à circulation d'eau pourvu d'un réservoir destiné au stockage d'eaux grises

Country Status (2)

Country Link
DE (1) DE102013224520B4 (fr)
WO (1) WO2015078653A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11459692B2 (en) 2019-01-31 2022-10-04 Ecolab Usa Inc. Laundry machine kit to enable control of water levels, recirculation, and spray of chemistry
US11525200B2 (en) 2019-01-31 2022-12-13 Ecolab Usa Inc. Controller for a rinse water reuse system and methods of use
US11572652B2 (en) 2019-01-31 2023-02-07 Ecolab Usa Inc. Controlling water levels and detergent concentration in a wash cycle

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4004057A1 (de) * 1990-02-10 1991-08-14 Miele & Cie Programmgesteuertes haushaltgeraet, wie geschirrspuelmaschine oder waschmaschine, sowie verfahren zum betrieb des haushaltgeraetes
DE19709085A1 (de) 1996-05-15 1997-11-20 Miele & Cie Verfahren zum Waschen und Wäsche unter Verwendung eines Filtrationsverfahrens
US5868937A (en) 1996-02-13 1999-02-09 Mainstream Engineering Corporation Process and system for recycling and reusing gray water
US5928490A (en) 1996-07-29 1999-07-27 Sweeney; Charles T. Laundry wash process and waste water treatment system
US20030213704A1 (en) * 2002-05-17 2003-11-20 The Procter & Gamble Company Self-contained, self-powered electrolytic devices for improved performance in automatic dishwashing
JP2007007153A (ja) * 2005-06-30 2007-01-18 Sanyo Electric Co Ltd 電気洗濯機
JP2007014867A (ja) * 2005-07-06 2007-01-25 Sanyo Electric Co Ltd 洗濯水処理装置および当該処理装置付洗濯機
EP2314753A1 (fr) 2009-10-20 2011-04-27 Electrolux Home Products Corporation N.V. Procédé pour effectuer un cycle de rinçage durant un processus de nettoyage dans une machine à laver
US20120145195A1 (en) * 2010-12-14 2012-06-14 Whirlpool Corporation Dishwasher system with a reuse tank
DE102011078530A1 (de) * 2011-07-01 2013-01-03 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit mindestens einem Flottenspeicher
DE102011083572A1 (de) * 2011-09-28 2013-03-28 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer katalytisch wirksamen inneren Oberfläche sowie Verfahren zu seinem Betrieb
DE102011089386A1 (de) * 2011-12-21 2013-06-27 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Hausgeräts mit einem Speicherbehälter und einem Oxidationsmittelgenerator sowie hierfür geeignetes Hausgerät

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012207980A1 (de) * 2012-05-14 2013-11-14 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung zum Zwischenspeichern von Betriebsflüssigkeit

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4004057A1 (de) * 1990-02-10 1991-08-14 Miele & Cie Programmgesteuertes haushaltgeraet, wie geschirrspuelmaschine oder waschmaschine, sowie verfahren zum betrieb des haushaltgeraetes
US5868937A (en) 1996-02-13 1999-02-09 Mainstream Engineering Corporation Process and system for recycling and reusing gray water
DE19709085A1 (de) 1996-05-15 1997-11-20 Miele & Cie Verfahren zum Waschen und Wäsche unter Verwendung eines Filtrationsverfahrens
US5928490A (en) 1996-07-29 1999-07-27 Sweeney; Charles T. Laundry wash process and waste water treatment system
US20030213704A1 (en) * 2002-05-17 2003-11-20 The Procter & Gamble Company Self-contained, self-powered electrolytic devices for improved performance in automatic dishwashing
JP2007007153A (ja) * 2005-06-30 2007-01-18 Sanyo Electric Co Ltd 電気洗濯機
JP2007014867A (ja) * 2005-07-06 2007-01-25 Sanyo Electric Co Ltd 洗濯水処理装置および当該処理装置付洗濯機
EP2314753A1 (fr) 2009-10-20 2011-04-27 Electrolux Home Products Corporation N.V. Procédé pour effectuer un cycle de rinçage durant un processus de nettoyage dans une machine à laver
US20120145195A1 (en) * 2010-12-14 2012-06-14 Whirlpool Corporation Dishwasher system with a reuse tank
DE102011078530A1 (de) * 2011-07-01 2013-01-03 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit mindestens einem Flottenspeicher
DE102011083572A1 (de) * 2011-09-28 2013-03-28 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer katalytisch wirksamen inneren Oberfläche sowie Verfahren zu seinem Betrieb
DE102011089386A1 (de) * 2011-12-21 2013-06-27 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Hausgeräts mit einem Speicherbehälter und einem Oxidationsmittelgenerator sowie hierfür geeignetes Hausgerät

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11459692B2 (en) 2019-01-31 2022-10-04 Ecolab Usa Inc. Laundry machine kit to enable control of water levels, recirculation, and spray of chemistry
US11525200B2 (en) 2019-01-31 2022-12-13 Ecolab Usa Inc. Controller for a rinse water reuse system and methods of use
US11572652B2 (en) 2019-01-31 2023-02-07 Ecolab Usa Inc. Controlling water levels and detergent concentration in a wash cycle

Also Published As

Publication number Publication date
DE102013224520B4 (de) 2020-06-25
DE102013224520A1 (de) 2015-06-03

Similar Documents

Publication Publication Date Title
EP2761073B1 (fr) Appareil ménager à circulation d'eau, présentant une surface intérieure catalytiquement active, et procédé pour le faire fonctionner
EP2440106B1 (fr) Appareil ménager comprenant un générateur d'ozone et un dispositif d'élimination d'ozone et procédé associé
DE102013224521B4 (de) Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
EP2094145B1 (fr) Procédé de désinfection de systèmes de conduites d'un appareil ménager à débit d'eau, et appareil ménager de ce type
EP2397062B1 (fr) Appareil ménager avec réservoir pour le stockage de l'eau de processus et avec un capteur de gaz
DE102010027795A1 (de) Hausgerät mit Plasmagenerator und Verfahren zu seinem Betrieb
EP2761076B1 (fr) Procédé d'adoucir du lingge dans un lave-linge et lave-linge adapté pour celui-ci
EP2390398A1 (fr) Appareil ménager avec dispositif de traitement de l'eau pour le traitement de l'eau de processus à stocker
EP2794976B1 (fr) Procédé de fonctionnement d'un appareil ménager comprenant un réservoir accumulateur et un générateur de moyen d'oxydation, et appareil ménager correspondant
EP2935679A1 (fr) Appareil ménager à circulation d'eau pourvu d'une surface intérieure à nettoyer, et procédé permettant le fonctionnement dudit appareil ménager
WO2015078653A1 (fr) Appareil ménager à circulation d'eau pourvu d'un réservoir destiné au stockage d'eaux grises
EP2794979B1 (fr) Appareil ménager présentant un réservoir d'alimentation et un générateur d'agents oxydants, et procédé pour le faire fonctionner
DE102008029908A1 (de) Verfahren zum Betreiben eines wasserführenden Haushaltsgeräts sowie wasserführendes Haushaltsgerät
DE102010038690A1 (de) Wasserführendes Haushaltsgerät, insbesondere Geschirrspülmaschine
DE102013224524A1 (de) Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
EP2878726B1 (fr) Appareil ménager aquifère doté d'un conditionnement d'eau grise accumulée
DE102015223616B4 (de) Haushaltsgerät mit einer elektrolytischen Biofilmbekämpfung sowie Verfahren zu seinem Betrieb
EP2558633B1 (fr) Lave-linge doté d'un dispositif d'élimination de gaz, et procédé de fonctionnement
DE102013100626B4 (de) Geschirrspüler und Ozongenerator
DE102015223583B4 (de) Wasserführendes Haushaltsgerät mit einer elektrochemisch polarisierbaren inneren Oberfläche sowie Verfahren zu seinem Betrieb
DE102015224832A1 (de) Flüssigkeitsspeichersystem für ein flüssigkeitsführendes Haushaltsgerät

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14790641

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14790641

Country of ref document: EP

Kind code of ref document: A1