EP2558633A1 - Lave-linge doté d'un dispositif d'élimination de gaz, et procédé de fonctionnement - Google Patents

Lave-linge doté d'un dispositif d'élimination de gaz, et procédé de fonctionnement

Info

Publication number
EP2558633A1
EP2558633A1 EP11712794A EP11712794A EP2558633A1 EP 2558633 A1 EP2558633 A1 EP 2558633A1 EP 11712794 A EP11712794 A EP 11712794A EP 11712794 A EP11712794 A EP 11712794A EP 2558633 A1 EP2558633 A1 EP 2558633A1
Authority
EP
European Patent Office
Prior art keywords
washing machine
ozone
removal device
gas removal
exhaust air
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.)
Granted
Application number
EP11712794A
Other languages
German (de)
English (en)
Other versions
EP2558633B1 (fr
Inventor
Hans Eglmeier
Andreas Hanau
Hartmut Schaub
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL11712794T priority Critical patent/PL2558633T3/pl
Publication of EP2558633A1 publication Critical patent/EP2558633A1/fr
Application granted granted Critical
Publication of EP2558633B1 publication Critical patent/EP2558633B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/001—Washing machines, apparatus, or methods not otherwise provided for using ozone
    • 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
    • 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
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress

Definitions

  • the invention relates to a washing machine with a gas removal device and a method for its operation.
  • gases or other volatile substances which are not gaseous at room temperature are sometimes used for disinfection or for other purposes.
  • Such substances can be harmful, corrosive and / or bad-smelling.
  • these substances are collectively referred to as "gases”.
  • Ozone is not just a powerful disinfectant; In combination with a care or cleaning agent applied in a washing machine, it also causes complex and rapid reactions, which can lead to an improved care or cleaning effect.
  • Ozone can be generated in a washing machine in different ways, for example by means of a UV lamp generator by irradiating oxygen with UV radiation below 200 nm, or by a corona discharge, in which oxygen is subjected to an electrical discharge in the form of a corona is suspended.
  • the corona is created by applying a high voltage of generally at least 5000V to a suitable array of electrodes.
  • WO 2007/143785 A1 describes a system and apparatus for introducing ozone into a washing machine.
  • the system includes a first conduit for introducing ozone from an ozone supply into a scrubbing liquid inlet and a second conduit for discharging ozone into an area above a scrubbing chamber.
  • a venturi nozzle is used, which is operatively coupled to scrubbing liquid inlet means for drawing the ozone into the scrubbing liquid while the scrubbing liquid is being added to the scrubbing tank.
  • WO 2008/1 19631 A1 describes a washing machine in which microorganisms present in a detergent distributor, ie an induction bowl, are removed by direct introduction of ozone from an ozone generator into the dispensing bowl.
  • a detergent distributor ie an induction bowl
  • water is added to the dispenser tray at the same time as ozone, so that the ozone / water mixture is passed through the dispenser tray. This should minimize the possibility of escape of ozone from the washing machine.
  • US 2008/0302139 A1 discloses a tunnel washer having a plurality of zones for washing laundry in a continuous manner, two locations for injecting ozone, a water circuit connecting a water inlet and a water outlet, the water circuit comprising a water reservoir and a venturi injector dissolving ozone in water, as well as an ozone generator.
  • a negative pressure or vacuum may be applied to the tunnel washer via an ozone eliminator to prevent leakage of ozone.
  • a blower can be used. Excess or leaking ozone can be catalytically converted back to oxygen in the ozone removing device.
  • US 2006/0096038 A1 describes a system for monitoring ozone and controlling the supply of a washing machine with ozone.
  • An ozone sensor indicates the exceeding of a set ozone limit, whereupon an ozone generator is switched off until the ozone concentration is again below this limit. An elimination of ozone is not provided.
  • the object of the invention is to provide a washing machine with a gas removal device, in which the escape of gases and in particular of ozone can be effectively prevented.
  • the washing machine should be particularly suitable for use with an ozone generator and with an ozone removing device.
  • the invention also relates to a method for operating this washing machine.
  • washing machine and a method for their operation according to respective independent claim.
  • Preferred embodiments of the invention are listed in the respective dependent claims.
  • Preferred embodiments of the washing machine according to the invention correspond to preferred embodiments of the method according to the invention, even if it is not separately pointed out here in each case.
  • the invention thus relates to a washing machine with a tub, a dispenser and a gas removal device, wherein the dispenser and / or a second partial exhaust air duct of the tub is connected to an exhaust duct via a first exhaust part, and wherein the gas removal device and a suction are in the exhaust duct ,
  • the dispensing dish is connected via the first exhaust air part channel and the suds tank via the second exhaust air part channel to the exhaust air channel.
  • first and second exhaust duct can be arranged in principle at different locations in the dispenser tray or in the tub.
  • the first exhaust air part channel and the second exhaust air part channel form a connecting pipe between the dispenser shell and the tub. Through this connecting pipe, an aqueous liquid (water, wash liquor, fabric softener) is generally conveyed from the dispenser tray into the tub.
  • This connecting tube is therefore sometimes referred to as a filling hose.
  • first and second partial air duct can also be advantageously arranged in a cuff of the washing machine.
  • First and second partial air ducts are preferably approximately the same length.
  • the gas removal device is an ozone removal device.
  • ozone is removed by being absorbed or decomposed on a suitable material.
  • the decomposition can occur, for example, in that the ozone is chemically reacted with a suitable material or catalytically decomposed, for example with formation of oxygen.
  • a washing machine having an ozone generator and an ozone removing device is preferable.
  • the source for the ozone to be removed may be arbitrary.
  • the ozone can be used as gas in the true sense or in aqueous solution.
  • the gas removal device therefore comprises a catalyst for the decomposition of the gas.
  • the ozone removing apparatus has a catalyst for decomposing ozone, for example, a catalyst for converting ozone into oxygen.
  • Suitable catalysts contain, for example, MnO 2 or PbO 2 .
  • a suitable catalyst is described for example in DE 19531 179 A.
  • the gas removal device for example an ozone removal device, comprises a filter unit, wherein the filter unit, in particular in the case of ozone, preferably comprises a carbon-containing material or another readily oxidizable material.
  • the carbon-containing material is at least one substance selected from the group consisting of activated carbon, polyarylene thioethers, polyarylene ethers and macroporous copolymers. Suitable polyarylene thioethers, polyarylene ethers and macroporous copolymers are described, for example, in EP 0 699 470 A1.
  • Activated carbon is particularly preferably used as the carbon-containing material.
  • Activated carbon can be used to remove many different gases and in particular ozone.
  • Activated carbon is generally decomposed by ozone to form carbon dioxide, so that the amount of activated carbon in a filter unit gradually decreases.
  • the washing machine has a sight glass arranged on the ozone removing device. A user of the washing machine can thus detect even without the presence of an ozone sensor, if the filter unit still works properly, for example, by still enough activated carbon is present.
  • a used in preferred embodiments of the washing machine according to the invention ozone generator generates about 20 mg / h to 30 mg / h of ozone.
  • the use of a filter unit, which is loaded with about 10 g of activated carbon, is sufficient for the entire operating life of the washing machine.
  • an advantage of the washing machine according to the invention is that a gas sensor, for example an ozone sensor, is not necessary.
  • the washing machine according to the invention can advantageously have, for example, an ozone sensor for measuring an ozone content.
  • the suction pump is arranged in the exhaust air duct between the gas removal device, for example an ozone removal device, and an exhaust air outlet.
  • the exhaust duct and the exhaust air outlet can For example, go into a storage room of the washing machine, since the exhaust air contains only small amounts of carbon dioxide and no other interfering components.
  • the washing machine in embodiments allows the automatic removal of gases and in particular of ozone within the washing machine. A special information about this for a user of the washing machine is not necessary.
  • the washing machine may also include a display device relating to gas removal and, in particular, ozone removal.
  • the display device may be an optical and / or acoustic display device.
  • the washing machine then has a display device for non-functioning ozone elimination.
  • non-functioning ozone removal occurs when an existing ozone sensor exceeds one of a predetermined threshold, e.g. 0.05 ppm, lying ozone concentration. If no ozone sensor is present in the washing machine, then a malfunctioning ozone removal may be present if the suction pump or the ozone removing device is not working properly.
  • a control device is generally provided which, in addition to the control of a cleaning program, can also take countermeasures in the event of a malfunctioning removal of ozone.
  • the controller can turn off the ozone generator and / or cause a corresponding acoustic and / or visual indication on the display device in a non-functioning ozone removal.
  • the suction pump used in the washing machine according to the invention is generally operated so that an adjusting in the exhaust duct flow through the gas removal device, in particular ozone removal device is sufficiently large to prevent escape of gas-containing, in particular ozone-containing air through other openings of the washing machine.
  • the suction pump may be partially turned off during operation of the washing machine.
  • the suction power may vary or be constant, wherein a pump program of the suction pump can be carried out automatically or by a user of the washing machine. It can thereby be taken into account that, for example, the quantity and time of ozone production can vary. In any case, for example, a temporally constant, dependent on the above conditions suction power of the pump or a time-varying suction power of the pump can be adjusted.
  • the suction pump is operated for a predetermined period of time even if a gas generator, e.g. an ozone generator, already turned off.
  • a gas generator e.g. an ozone generator
  • the washing machine according to the invention is not limited and may be any washing machine in which a container for receiving objects to be treated is present and in which a gas such as e.g. Ozone is applied or created.
  • a washing machine generally has in addition to the tub a rotatably mounted in the tub drum for receiving laundry to be treated. Treating is understood according to the invention primarily to be a cleaning and a refreshment of laundry items.
  • a washing machine generally also has a lye drainage system arranged at the bottom of the lye container with a drain pump and generally also laundry hoppers and / or scooping devices.
  • a pressure sensor and / or a temperature sensor are arranged in the tub.
  • Pressure and temperature sensor if present, are preferably arranged in a lower region of the tub, so that pressure and / or temperature of an aqueous liquid present in the tub can be measured.
  • the invention also relates to a method for operating a washing machine with a tub, a Ein Cyprusschale and a gas removal device for a harmful, corrosive and / or bad-smelling gas present in the washing machine, wherein the dispensing bowl and / or a second partial exhaust air duct of the tub is connected to an exhaust duct via a first partial exhaust duct, in which the gas removal apparatus and a suction pump are located; in which method using the suction pump air is sucked out of the tub and / or the dispenser tray in the exhaust duct and through the gas removal device.
  • the process of the invention is generally tuned to the generation and / or introduction of gases into the washing machine. If an introduction of ozone occurs, for example, in that an ozone generator present in the washing machine is first switched on and the ozone generated is then used further, the suction pump is usually started only after the ozone generator has been switched on and only after a predetermined time after the ozone generator has been switched off Ozone generator switched off.
  • a simultaneous operation of the drum in a reversing operation is displayed on a display device when the elimination of a gas, in particular ozone, as described above does not work properly.
  • the invention has the advantage that in a simple and very efficient way, escape of unpleasant or harmful gases, in particular ozone, can be prevented from a washing machine. This is also possible in particular if the washing machine is not hermetically sealed off from the air in a set-up room. Thus, e.g. Excess ozone is not only prevented from escaping, but destroyed by an ozone removing device immediately.
  • FIG. 1 is a schematic representation of the presently relevant parts of a first embodiment of the washing machine according to the invention.
  • FIG. 2 shows a view, which is less heavily schematized in comparison to FIG. 1, of the presently relevant parts of a second embodiment of the washing machine according to the invention.
  • a dispensing dish 1 1 and a tub 2 are two times, namely via a sleeve 26 and a connecting tube (filling hose) 10, connected to each other.
  • the dispenser 1 1 is connected via a first exhaust air duct 18 and the tub 2 via a second exhaust air duct 19 with the exhaust duct 17, wherein the first exhaust air duct 18 and the second exhaust air duct 19 on the one hand form the connecting pipe 10 between the dispenser 1 and 1 lye container and on the other hand form the collar 26.
  • an ozone removing device 20 which includes a filter unit 28, which here contains activated carbon, and a suction pump 21.
  • An ozone sensor 31 for measuring an ozone content is disposed between the ozone removing device 20 and the suction pump 21.
  • a proper functioning of the ozone removing device 20 is present when the ozone sensor 31 can detect no or only extremely small amounts of ozone.
  • the sucked from the dispenser 1 and the tub 2 by means of the suction pump 21 air is passed to the removal of the ozone in the ozone removal device 20 via an exhaust outlet 22 in the installation room of the washing machine 1.
  • the suction pump 21 is arranged for this purpose in the exhaust duct 17 between the ozone removal device 20 and the exhaust air outlet 22.
  • Fig. 2 is a more detailed illustration of the parts relevant to the present explanation of a second embodiment of a washing machine 1, in which a method to be explained below can be carried out.
  • the gas used in this embodiment is ozone.
  • the washing machine 1 shown in Fig. 2 comprises a tub 2, in which a drum 3 rotatably mounted and can be operated by a drive motor 14.
  • the arrow shows the here Direction of rotation of the drum.
  • 24 means the axis of rotation of the drum 3.
  • In the drum 3 are on the inner surface of the drum shell Wäschemit Meeting 4 and 5 Schmüinraumen for the wash liquor 6 available.
  • the washing machine 1 also has a water supply system, which has a water connection fitting, not shown here, for the domestic water network, an electrically controllable valve 9 and a detergent dispensing device ("dispensing dish") 1.
  • a venturi nozzle 16 which in the embodiment shown here is connected via an ozone supply line 25 to an ozone generator 32. Air is supplied to the ozone generator in a supply air duct 30. Via the venturi 16, the water flowing in the water supply line 8 sucks from the domestic water network in the ozone supply line 25, As a result, ozone, together with water, reaches the induction bowl 11 and then the liquor container 2.
  • the dispenser 1 1 is connected via a connecting tube (filling hose) 10 with the tub 2.
  • the dispenser 1 1 is connected via a first exhaust air duct 18 and the tub 2 via a second exhaust air duct 19 to the exhaust duct 17.
  • First exhaust air duct 18 and second exhaust air duct 19 thus form the connecting pipe 10 between the dispenser 1 1 and the tub 2.
  • a filter unit 28 which contains activated carbon as a carbon-containing material in the presently described embodiment.
  • a sight glass 27 is arranged, via which a user of the washing machine can detect whether in the filter unit 28 is still carbon-containing material, here activated carbon, for proper functioning is present.
  • An ozone sensor 31 for measuring an ozone content is disposed between the ozone removing device 20 and the suction pump 21. A proper functioning of the ozone removing device 20 is present when the ozone sensor 31 can detect no or only extremely small amounts of ozone. The ozone sensor 31 thus acts as additional protection in addition to the sight glass 27.
  • the sucked by the dispenser 1 and the tub 2 by means of the suction pump 21 air is passed after the removal of ozone in the ozone removal device 20 via an exhaust outlet 22 in the installation room of the washing machine 1 ,
  • the suction pump 21 is arranged for this purpose in the exhaust duct 17 between the ozone removal device 20 and the exhaust air outlet 22.
  • a display device 29 is located on the washing machine 1 of the specific embodiment shown here.
  • valve 9 in the tub 2 embodiments without heating, however, are conceivable.
  • the valve 9 as well as the heater 13 may be controlled by a controller 12 in accordance with a schedule associated with a timed program and / or the achievement of certain measurements of parameters such as liquor level, liquor temperature, drum speed, etc. within the washing machine can be.
  • 15 is a pressure sensor for the measurement of the hydrostatic pressure p in the tub 2, which results from the level of forming in the tub 2 free liquor.
  • the signals from the drive motor 14, pressure sensor 15, ozone generator 32, suction pump 19, ozone sensor 31, etc. are supplied to the controller 12, although not shown for reasons of clarity.
  • the suction pump 21 is selected from its performance so that it can influence the pressure fluctuations resulting from various influences so that an overpressure in the dispenser 1 and the tub 2 is avoided and therefore no ozone can get out of the washing machine 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

L'invention concerne un lave-linge (1) comprenant une cuve à lessive (2), un bac à produits (11) et un dispositif d'élimination de gaz (20), le bac à produits (11) étant relié à un conduit (17) d'évacuation d'air par une première partie (18) de conduit d'évacuation d'air et/ou la cuve à lessive (2) étant reliée au conduit (17) d'évacuation d'air par une deuxième partie (19) de conduit d'évacuation d'air; le dispositif d'élimination de gaz (20) et la pompe d'aspiration (21) se trouvant dans le conduit (17) d'évacuation d'air. L'invention concerne également un procédé de fonctionnement du lave-linge.
EP11712794.4A 2010-04-15 2011-03-21 Lave-linge doté d'un dispositif d'élimination de gaz, et procédé de fonctionnement Active EP2558633B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11712794T PL2558633T3 (pl) 2010-04-15 2011-03-21 Pralka z zespołem usuwania gazu i sposób jej eksploatacji

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010027796A DE102010027796A1 (de) 2010-04-15 2010-04-15 Waschmaschine mit einer Gasbeseitigungsvorrichtung und Verfahren zu ihrem Betrieb
PCT/EP2011/054219 WO2011141208A1 (fr) 2010-04-15 2011-03-21 Lave-linge doté d'un dispositif d'élimination de gaz, et procédé de fonctionnement

Publications (2)

Publication Number Publication Date
EP2558633A1 true EP2558633A1 (fr) 2013-02-20
EP2558633B1 EP2558633B1 (fr) 2014-07-16

Family

ID=44512401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11712794.4A Active EP2558633B1 (fr) 2010-04-15 2011-03-21 Lave-linge doté d'un dispositif d'élimination de gaz, et procédé de fonctionnement

Country Status (4)

Country Link
EP (1) EP2558633B1 (fr)
DE (1) DE102010027796A1 (fr)
PL (1) PL2558633T3 (fr)
WO (1) WO2011141208A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020005256A1 (de) 2020-08-27 2022-03-03 Bohnhoff Betriebstechnik GmbH Vorrichtung zur weitgehend immissionsfreien Verbringung von kontaminierten Waschgut in eine Waschmaschine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2433909A1 (de) * 1974-07-15 1976-02-05 Sueddeutsche Metallwerke Gmbh Geraet zur pflege von kleidungsstuecken
DE3232057A1 (de) * 1982-08-28 1984-03-01 Rudolf 3501 Schauenburg Gesslauer Reinigungsmaschine fuer waesche, geschirr od. dgl.
DE4314734A1 (de) * 1993-05-04 1994-11-10 Hoechst Ag Filtermaterial und Verfahren zur Entfernung von Ozon aus Gasen und Flüssigkeiten
GB2292698B (en) 1994-08-31 1998-02-11 Nichias Corp Ozone filter and process for producing the same
DE4431139A1 (de) 1994-09-01 1996-03-07 Hoechst Ag Verfahren zur Ozoneliminierung aus Gasen und Flüssigkeiten
DE19546075A1 (de) * 1995-06-22 1997-01-02 Juergen Bernloehr Verfahren und Einrichtung zum Entfärben von Gewebe bzw. Bekleidung, insbesondere Jeansbekleidung
US20050183208A1 (en) * 2004-02-20 2005-08-25 The Procter & Gamble Company Dual mode laundry apparatus and method using the same
GB2414023B (en) 2004-05-11 2008-04-09 Jla Ltd Washing machine, ozone dissolving apparatus and method of washing
AU2006202541A1 (en) 2006-06-15 2008-01-10 Ozone Technologies Pty Limited System and Device for Introducing Ozone into a Washing Apparatus
US20080092601A1 (en) * 2006-10-23 2008-04-24 James Anthony Konides Ozone laundering system and method
WO2008119631A1 (fr) 2007-03-29 2008-10-09 Arcelik Anonim Sirketi Lave-linge
US20080302139A1 (en) 2007-05-11 2008-12-11 Randy Zorn Ozone Laundry Systems
DE102009026827A1 (de) * 2009-06-08 2010-12-09 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät mit einem Ozongenerator und einer Ozonbeseitigungsvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011141208A1 *

Also Published As

Publication number Publication date
DE102010027796A1 (de) 2011-10-20
EP2558633B1 (fr) 2014-07-16
PL2558633T3 (pl) 2014-12-31
WO2011141208A1 (fr) 2011-11-17

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