EP2794976A1 - Procédé de fonctionnement d'un appareil ménager comprenant un réservoir accumulateur et un générateur de moyen d'oxydation, et appareil ménager correspondant - Google Patents

Procédé de fonctionnement d'un appareil ménager comprenant un réservoir accumulateur et un générateur de moyen d'oxydation, et appareil ménager correspondant

Info

Publication number
EP2794976A1
EP2794976A1 EP12812577.0A EP12812577A EP2794976A1 EP 2794976 A1 EP2794976 A1 EP 2794976A1 EP 12812577 A EP12812577 A EP 12812577A EP 2794976 A1 EP2794976 A1 EP 2794976A1
Authority
EP
European Patent Office
Prior art keywords
ozone
container
generator
treatment
oxidizing agent
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
EP12812577.0A
Other languages
German (de)
English (en)
Other versions
EP2794976B1 (fr
Inventor
Antonio BARRADO FRANCO
Andreas Bischof
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
Publication of EP2794976A1 publication Critical patent/EP2794976A1/fr
Application granted granted Critical
Publication of EP2794976B1 publication Critical patent/EP2794976B1/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
    • 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
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • 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 invention relates to a method for operating a household appliance with a storage container and an oxidizing agent generator and a household appliance suitable for this purpose.
  • Ozone is a powerful disinfectant and, in conjunction with a care or cleaning agent applied in a household appliance, also produces complex and rapid reactions that allow for improved care or cleaning effects.
  • oxidizing agents in a household appliance is particularly useful when, in order to save water, it is useful in a treatment process of e.g. Laundry or crockery used water is at least partially collected in a storage container. Depending on the type of liquid and / or its loading with organic substances, this water can easily become a nutrient medium for microorganisms.
  • an oxidizing agent Through the use of an oxidizing agent, a prevention of the spread or elimination of microorganisms can be achieved.
  • a treatment of the stored or for a certain period of time to be stored aqueous liquid by contacting this is carried out with the oxidizing agent.
  • the aqueous liquid is then as germ-free as possible for a further, water-requiring treatment process in the household appliance.
  • the treatment of laundry in a washing machine as an example of a domestic appliance comprises several treatment steps (wetting phase, pre-wash, main wash, rinse). After the main wash in the rinsing phase, the laundry still containing wash liquor and dirt residues is rinsed several times in the drum, wherein after the main wash and between the rinsing steps in each case is thrown.
  • the rinsing water especially the last rinsing water, is suitable for storage, since these It only has low dirt and detergent residues.
  • a disadvantage here is that a time span between the collection of the water in a storage container and the switching off of the washing machine is relatively short. If a prolonged service life of the washing machine or a stand-by mode is to be excluded, the treatment of the aqueous liquid with the oxidizing agent, which usually requires energy, must take place in a very short time.
  • WO 2007/143785 A1 describes a system and apparatus for introducing ozone into a washing machine having a first pipe for introducing ozone from an ozone supply into a washing liquid inlet and a second pipe for discharging ozone into an area above a washing chamber.
  • a Venturi nozzle is used for introducing ozone and for mixing with a washing liquid.
  • WO 2008/1 19631 A1 describes a washing machine in which microorganisms present in an induction bowl are removed by the direct introduction of ozone from an ozone generator.
  • water is added simultaneously to the ozone in the dispenser tray so that the ozone / water mixture is passed through the dispenser tray. This is intended to minimize the possibility of escape of ozone from the washing machine.
  • DE 32 32 057 A1 describes a cleaning machine for laundry, dishes or the like with a storage container for a cleaning agent and an ozone generator, at whose output for the purpose of ozonization of the cleaning agent in this opening ode-feeding is connected.
  • the reservoir is associated with a vent line and an Entozoni- stechniks founded consisting of a heating coil.
  • Fig. 1 shows a washing machine, in which an ozone generator has a compressor, so that the ozone can flow with the required pressure in the reservoir.
  • U.S. Patent 5,960,501 describes a system and method for treating laundry with ozone in an amount that is tailored to the amount of laundry.
  • used wash liquor is treated with ozone, wherein the ozone is sucked through a venturi into the wash liquor.
  • WO 2007/086221 A1 describes a washer-dryer with an ozone generator for providing ozone in a process air duct.
  • WO 2005/063109 A1 describes a dishwasher for the use of ozone, at least for cleaning and disinfection.
  • US Patent 5,493,743 describes a method and apparatus for laundering laundry employing a closed or open ozonated wash water system.
  • wash water kept in an external contact tank is ozonized before use in the washing machine.
  • the system includes a venturi for drawing ozone into the water in the externally located supply and contact tanks.
  • EP 1 975 299 A1 describes a washing machine with a washing tank, a tank for storing water after it has been used in the washing tank, and a means for cleaning the water stored in the tank, this cleaning agent comprising an ozone generator.
  • DE 10 2010 027 795 A1 describes a domestic appliance with a container, which is exposed to moisture during operation of the domestic appliance and tends to form a biofilm on one of its inner surfaces, and a plasma generator, wherein the plasma generator can produce a cold atmospheric pressure plasma and in a distance of less than 5 cm from an inner surface of the container is arranged.
  • US 2005 / 0251925A1 describes a washing machine comprising a washing volume and a mixing chamber below the washing volume, which are in liquid communication, and at least one sparger tube within the mixing chamber for connection to an ozone source.
  • an ozone source is present in the washing machine, which is connected to the sparger.
  • the object of the invention is to provide a method for operating a domestic appliance with an oxidizing agent generator and a storage container for an aqueous liquid, which permit the most effective possible treatment of the aqueous liquid to be stored with the oxidizing agent generator.
  • the invention thus relates to a method for operating a domestic appliance with a treatment container for receiving objects to be treated, an aqueous liquid storage container, at least one pump for conveying the aqueous liquid between the storage container and the treatment container and an oxidizer generator provided with a container for storing an aqueous solution of oxidizing agent produced in the oxidizing agent generator, comprising a time-overlapping performing of the steps:
  • steps (a) and (b) are started simultaneously.
  • step (b) be carried out at least during the performance of step (a).
  • step (b) is carried out for a predetermined period of time M after completion of step (a). This makes it possible optimally to respond to the load of the household appliance, such as a washing machine and its components such as inner walls, as well as the stored aqueous liquid with microorganisms.
  • an aqueous liquid used in the treatment container is brought into contact with the solution of the oxidizing agent kept ready in the container.
  • only the rinsing water from the last rinsing step which is particularly clean, can be collected for intermediate storage in the storage container.
  • an aqueous liquid used in the treatment tank is brought into contact with the solution of the oxidizing agent kept in the tank.
  • the mixing device may be a stirrer, a recirculation device and / or structural features in the storage container.
  • an aqueous liquid to be treated is not restricted and may be a rinsing liquid and / or a washing liquid.
  • an already relatively clean aqueous liquid is used from the treatment tank.
  • a solution containing oxidizing agent is brought into contact with an aqueous liquid conveyed from the treatment container into the storage container.
  • This will be very rapidly, namely by using a previously generated in parallel oxidizing agent, a disinfection of discharged for storage from the treatment tank aqueous liquid.
  • rinse water is cached in a domestic appliance such as a washing machine or a dishwasher according to the invention, to be used then, for example, in a subsequent wash cycle.
  • a domestic appliance such as a washing machine or a dishwasher according to the invention
  • the storage tank has suitable devices such as stirrers, pump-over devices and / or structural features which permit intensive mixing.
  • the mixture resulting from the mixing of the aqueous liquid from the treatment tank and the oxidizing agent may advantageously be conveyed back into the treatment tank.
  • This mixture is disinfected and can thus contribute to a disinfection of the objects in the treatment tank.
  • This procedure makes it possible in particular for the case that the household appliance is a washing machine, that the laundry items are subjected to an additional hygiene measure and, moreover, that they are equipped with a "fresh smell", which indicates an increased hygiene state of the laundry items.
  • the oxidizing agent is not limited, as long as it can be used in the household appliance.
  • it may be hypochlorite produced by electrolysis of saline or an oxidizing gas.
  • the oxidizing gas may be generated, for example, in a plasma generator.
  • ozone is used particularly advantageously as the oxidizing agent.
  • the manner of producing the oxidizing agent-containing solution is not limited as long as it is possible and useful in a household appliance.
  • gaseous ozone can be generated in an ozone generator and this gas is then introduced into a container in which water is introduced.
  • the container may be, for example, the storage container for an aqueous liquid from the treatment container or a separate container for storing the solution containing the oxidizing agent.
  • an aqueous solution already containing an oxidizing agent for example ozone, may be introduced into the storage container or into the container for storing the solution containing the oxidizing agent.
  • the invention also relates to a domestic appliance having a treatment container for receiving objects to be treated, an aqueous liquid storage container, at least one pump for conveying the aqueous liquid between the storage container and the treatment container, and an oxidant generator; wherein the oxidant generator is connected to a container for storing an aqueous solution of oxidant generated in the oxidant generator, and the home appliance is arranged to perform a method comprising performing a time overlapping of the steps:
  • container and storage container can be identical.
  • the oxidizing agent generator may be of any desired design as long as it produces an oxidizing agent which can be used for disinfecting aqueous liquids from the treatment tank, for example a suds tank.
  • the oxidizing agent will preferably be an inorganic oxidizing agent and may be used as a liquid or gaseous oxidizing agent.
  • the use of gaseous oxidizing agents is preferred, in particular of ozone.
  • the oxidant generator is therefore an ozone generator.
  • Ozone can be produced in a household appliance 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.
  • such an ozone generator is a generator of ozone which can be suitably introduced into water.
  • such an ozone generator is located outside the container or storage container.
  • a pump for conveying an aqueous liquid is arranged between storage container and treatment container.
  • This may be, for example, a single pump in one or two connecting lines between storage tank and treatment tank. If only one connecting line, eg a connecting hose, is present, the transport takes place via a common connecting line in both directions.
  • the household appliance of the invention includes a storage container, but also other parts that are exposed to moisture during operation of the household appliance, such as a washing-up in a washing machine whose inner surfaces tend to form a biofilm, can advantageously in these containers or parts as Oxidationsffenge- erator a plasma generator capable of producing a cold atmospheric pressure plasma and preferably located at a distance of less than 5 cm, more preferably less than 2 cm, from an inner surface of the container or a dispenser tray.
  • the plasma generator is arranged in an induction dish of a washing machine or a washer-dryer.
  • the plasma generator is arranged in a storage container for an aqueous liquid.
  • the household appliance is preferably a washing machine, a washer-dryer or a dishwasher. Since the oxidizing agent is often harmful, in particular ozone, the domestic appliance preferably has an oxidizing agent removal device.
  • ozone is eliminated by being absorbed or decomposed on a suitable material.
  • the decomposition can take place in that the ozone is chemically reacted with a suitable material or catalytically decomposed, for example with formation of oxygen.
  • the ozone removing device preferably includes a filter unit, the filter unit advantageously comprising a carbon-containing material or other easily oxidizable material.
  • Activated carbon is particularly preferably used as the carbon-containing material. Activated carbon is generally decomposed by ozone to form carbon dioxide, so that the amount of activated carbon in a filter unit gradually decreases. If the domestic appliance has an ozone removal device, therefore, a sight glass arranged thereon can be advantageous. A user of the household appliance can thus detect even without the presence of an ozone sensor, if the filter unit is still working properly, for example, by still enough activated carbon is present.
  • the ozone-removing device used in embodiments of the household appliance according to the invention may alternatively or in addition to a filter unit comprise a catalyst for the decomposition of ozone, for example a catalyst for the conversion of ozone into oxygen.
  • a preferably used in a domestic appliance according to the invention ozone generator generates about 20 mg / h to 30 mg / h of ozone.
  • the oxidant removal device present in embodiments of the invention can be arranged in various places in the domestic appliance.
  • an ozone removal device and a fan can be arranged in an exhaust air duct, which exhaust air duct is connected to the treatment tank.
  • the ozone removing device is preferably arranged between the treatment tank and the blower.
  • exhaust duct can lead into a storage room of the household appliance, since the exhaust air contains only small amounts of carbon dioxide and no other interfering components.
  • Venturi nozzles may be useful to effect introduction of an oxidizing agent, particularly ozone, into the flow of aqueous liquid flowing through the Venturi nozzle.
  • a venturi could have its air inlet connected to an oxidant generator, e.g. an ozone generator, is connected to be arranged between the water supply and the storage container or container of the household appliance.
  • an oxidant generator e.g. an ozone generator
  • the oxidizing agent and in particular ozone can be brought into an aqueous solution in any desired manner.
  • water be it a relatively clean water from the treatment tank or tap water in a container for storing a solution of the oxidizing agent are presented and this then be acted upon with gaseous ozone or a concentrated ozone solution.
  • the storage container may be provided.
  • a Venturi nozzle whose air inlet is connected to an oxidant generator, eg an ozone generator, can also be connected between the water supply and an inlet. be arranged flushing bowl. This additionally allows the introduction of ozone into the tub via the dispenser bowl, and thus an additional disinfection.
  • an oxidant generator eg an ozone generator
  • the household appliance according to the invention has a treatment chamber, which can be designed differently depending on the household appliance.
  • the treatment chamber is generally assumed to be a suds container in which a drum is rotatably mounted for receiving objects to be treated.
  • a treatment chamber in this sense, therefore, generally the ensemble of drum and tub, and more particularly the drum, i. the laundry drum, viewed.
  • a washing machine generally has a tub and a drum rotatably mounted in the tub for receiving laundry to be cleaned.
  • a washing machine generally also has a lye drainage system, which is arranged at the bottom of the lye container, with a drainage pump and generally laundry hoppers and / or scooping devices.
  • the domestic appliance is a washing machine
  • a pressure sensor and / or a temperature sensor are preferably arranged therein in the tub.
  • Pressure and temperature sensor 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 objects to be treated are not restricted according to the invention, with treatment being understood to mean, in particular, cleaning.
  • the objects to be cleaned may be, in particular, dishes or laundry. Cleaning according to the invention also means a refreshment.
  • the household appliance according to the invention may advantageously contain a sensor for measuring a content of oxidizing agent.
  • the household appliance according to the invention may have an ozone sensor for measuring an ozone content.
  • An ozone sensor may be used, for example, to control the production of ozone depending on a detected level of contamination of the aqueous liquid from the Treatment tank are used.
  • a corresponding sensor for the degree of contamination and a sensor for the oxidizing agent in the container and / or storage container.
  • the household appliance allows the automatic treatment of the water used with an oxidizing agent and in embodiments also its elimination, in particular the elimination of ozone, within the household appliance.
  • a user of the home appliance may be informed of the parallel production of an oxidant by the oxidant generator and the provision of the oxidant and / or on-going treatment of the aqueous liquid with an oxidant.
  • the household appliance can also be a display device relating to the automatic treatment of the water used with an oxidizing agent and / or the elimination of excess oxidizing agent, e.g. Ozone, included.
  • the display device may be an optical and / or acoustic display device.
  • the household appliance in the case of using ozone as the oxidizing agent, the household appliance then has a display device for non-functioning ozone elimination.
  • the removal of ozone does not work, for example, if an existing ozone sensor, for example in the dispensing dish or the tub of a washing machine, after carrying out the method according to the invention exceeds a predetermined limit, e.g. 1 ppm, lying ozone concentration.
  • Non-functioning ozone removal may be present if the blower or ozone eliminator is malfunctioning. The latter can be the case, for example, when a carbon-containing material in a filter unit is used up or a catalyst for the catalytic decomposition of the ozone is poisoned.
  • a control device is generally present which, in addition to the control of a cleaning program, can also take countermeasures in the event of a non-functioning generation and / or removal of oxidizing agent, for example ozone.
  • the control device can give an indication to a user and / or the storage of the aqueous liquid, in particular its pumping off into the storage container prevention.
  • an exhaust air duct is connected to a supply air duct of the ozone generator in the domestic appliance. This eliminates any necessary for the operation of the ozone generator blower in a supply air duct of the ozone generator.
  • the exhaust air duct is connected to the supply air duct via a pitot tube. As a result, an air flow required for the ozone generator is generated particularly efficiently.
  • the fan is still operated for a predetermined period even when the ozone generator is already turned off.
  • the air from the exhaust air duct is preferably at least partially directed into a supply air duct for the ozone generator.
  • the invention has the advantage that in a simple and very efficient way, a longer storage of an aqueous liquid is made possible, for example, an aqueous liquid from a laundry treatment process. This is done according to the invention in a time-saving manner parallel to a treatment process of objects in a treatment vessel.
  • a microbial contamination of the storage container can be prevented or eliminated. This avoids the need for separate cleaning of the container and its hydraulic connections, as would be necessary with prolonged use, particularly over the life of the household appliance.
  • ozone-containing water can kill microorganisms in the treatment tank, eg tub of a washing machine, and in the flow-through lines.
  • FIGS. 1 to 3 of the attached drawing a washing machine is shown as an example of a household appliance according to the invention.
  • FIG. 1 is a schematic representation of a frontal sectional view of a first embodiment of a washing machine 1, which contains an ozone generator 20 as an oxidant generator and a storage container 16 for an aqueous liquid 6 from a tub 4.
  • an ozone generator 20 as an oxidant generator
  • a storage container 16 for an aqueous liquid 6 from a tub 4.
  • FIG. 2 is a schematic representation of a frontal sectional view of a second embodiment of a washing machine 1, the ozone generator 20 as oxidant generator, a storage container 16 for an aqueous liquid 6 from the tub 4 and a container 38 for an oxidizing agent, in this case ozone containing solution contains.
  • FIG. 3 is a schematic representation of a frontal sectional view of a third embodiment of a washing machine 1, the ozone generator 20 and plasma generators 33 as an oxidant generator, a storage vessel 16 for an aqueous liquid 6 from the tub 4 and a container 38 for an oxidizing agent, in this case ozone, containing solution.
  • the washing machine 1 has a tub 4, in which a laundry drum 2 with therein laundry 7 is rotatably mounted and operated by a drive motor 14. Wäschemit Cartoon 39 and 5 scooping devices for washing lye 6 contribute to an intensification of the flow of the laundry 7 with wash liquor 6 or 6 with rinse water.
  • the washing machine has a liquor inlet system, which comprises a water connection for the domestic water network 8, an electrically controllable valve 9 and a supply line 10 to the tub 4, which is guided via a dispenser 1, from which the feed water (fresh water) treatment agent in the tub 4 can transport.
  • a heater 13 In the tub 4 is a heater 13.
  • the valve 9 as well as the heater 13 can be controlled by the program control 12 in response to a program flowchart.
  • a pressure sensor 15 is provided for the measurement of the hydrostatic pressure in the tub 4.
  • an aqueous liquid 6 from the tub 4 as a treatment container according to the invention can be temporarily stored in the storage container 16 for further uses.
  • a stored aqueous liquid from one of the last rinses, which is particularly clean can be used for wetting and washing laundry 7.
  • the aqueous liquid 6 is conveyed back into the tub 4 via a return line 32, in which a storage pump 35 is located in this embodiment.
  • a return line 32 in which a storage pump 35 is located in this embodiment.
  • two ways are possible for this purpose.
  • an ozone generator 20 outside of the storage tank 16 and a plasma generator 33 within the storage tank 16 are provided as oxidizing agent generators.
  • Another plasma generator 33 may also be located in the dispenser shell 11 in the embodiment shown here.
  • the plasma generators 33 are used here for generating a cold atmospheric pressure plasma in air and are each at a distance of 0.5 to 1, 5 cm to an inner surface of storage container and Ein réelleschale.
  • the oxidant generator 20 is here an ozone generator.
  • the air required for the generation in the ozone generator 20 is provided by suction from the installation room of the household appliance by means of a blower 19 through the supply air duct 30 for the oxidant generator.
  • the ozone generated in the ozone generator 20 can be introduced as a gas into water, which was conducted from the water supply 8 via the line 32 into the storage tank 16.
  • an aqueous solution of ozone may already be generated in the region of the ozone generator 20 via a connection with the water supply 8 and directed as such into the storage container 16.
  • the generation and provision of oxidizing agent can be additionally supported by the use of the plasma generator 33.
  • the plasma generator 33 in this embodiment comprises a first electrode made of copper, a dielectric made of polytetrafluoroethylene and a second electrode made of copper.
  • an aqueous solution containing ozone as an oxidizing agent is provided in the storage container 16. Since there can be a lot of time available for the production of ozone, it is also possible to use an ozone generator with a relatively small capacity for ozone production.
  • a used for a laundry treatment process in the tub 4 aqueous solution 6 can now be transferred via a storage line 34 using a drain pump 22 into the storage tank 16.
  • a relatively clean aqueous liquid for example from one of the rinses, is preferably used. If necessary, the loading of dirt and detergents can be detected by a sensor 41 mounted in the same container.
  • an aqueous liquid 6 can be transferred into the storage container 16 only up to a maximum loading of dirt and detergents.
  • the sensor 41 may also be used to control the production and provision of an optimum amount of oxidant-containing solution.
  • a stirrer 42 is present in the storage container 16, which can bring about a thorough mixing of aqueous solution 6 and oxidant-containing solution.
  • a display device 29 is located on the washing machine 1 of the specific embodiment shown here.
  • an oxidant supply line 36 for the tub 4 may be used to direct ozone directly into the tub 4.
  • Fig. 2 is a schematic representation of the presently relevant parts of a second embodiment of a washing machine 1, in which a method to be explained in detail below can be performed.
  • the washing machine 1 shown in Fig. 2 comprises a tub 4, in which a drum 2 is rotatably mounted about a substantially horizontal axis 3 and can be operated by a drive motor 14.
  • the arrow indicates the direction of rotation of the drum.
  • Wäschemit Cartoon 39 and scooping devices 5 for the wash liquor 6 on the inner surface of the drum shell allow intensification of the flow of laundry 7 with wash liquor and a reduction of the free liquor, so the amount of wash liquor in the tub 4, which no longer saturated by the laundry 7 saturated with wash liquor can be included.
  • the washing machine 1 also has a liquor 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 4, which is guided via a Waschstoffein Whynd ("Ein Stammschale”) 1 1, from which the feed water detergent portions can transport in the tub 4.
  • a liquor 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 4, which is guided via a Waschstoffein Whynd ("Ein Stammschale”) 1 1, from which the feed water detergent portions can transport in the tub 4.
  • an aqueous liquid 6 located in the tub 4 as a treatment tank can be pumped by means of a drain pump 22 in a storage line 34 to the storage tank 16 and there before a further be cached.
  • the stored aqueous liquid 6 can reach the supply line 10 and then back into the tub 4 by means of a storage pump 35 via the return line 32.
  • a container 38 for the solution of an oxidizing agent is connected to the storage container 16.
  • the container 38 is connected via an ozone supply line 25 with an ozone generator 20 as an oxidant generator, so that the container 38 here contains ozone, preferably in aqueous solution, wherein the water was provided in the container 38 here in a manner not shown.
  • ozone supply line 25 there is a distribution node 40 which controls the supply of ozone-containing air to a venturi 26 and to the aqueous liquid containing ozone 38.
  • a Venturi nozzle 26 which is connected via an ozone supply line 25 to the ozone generator 20 as oxidant generator. Via the Venturi nozzle 26, the water flowing in the supply line 10 sucks from the domestic water network 8 in the ozone supply line 25 located, ozone-containing air.
  • the tub wall 21 there is an inlet 37 in the exhaust duct 17, in which an ozone removal device 18, an ozone sensor 31 and a fan 19 are located.
  • the exhaust duct 17 leads to an exhaust air outlet 23, which protrudes here into a storage room of the washing machine.
  • an aqueous liquid 6 located therein preferably a less contaminated flushing liquid from one of the last rinses, is pumped into the storage tank 16 in the storage line 34 by means of a drain pump 22.
  • ozone-containing air can be sucked from the ozone generator 20 and the aqueous liquid 6 in the tub 4 are supplied.
  • an ozone-containing solution from the container 38 can be added to this cycle.
  • a filter unit 28 here containing activated carbon as a carbon containing material.
  • a sight glass 27 is arranged, through which a user of the washing machine can recognize whether in the filter unit 28 still carbon-containing material is present.
  • a display device 29 is located on the washing machine of the embodiment shown here.
  • the fan 19 can be used simultaneously both for the operation of the ozone generator 20 and for the operation of the ozone removing device 18.
  • the valve 9 as well as the heater 13 can be controlled by a control device 12, which generally has a time program and / or the achievement of certain measured values of parameters such as liquor level, Lye temperature, speed of the drum, etc. within the washing machine 1 taken into account.
  • Fig. 2 15 means a pressure sensor for the measurement of the hydrostatic pressure in the tub 4, resulting from the level of forming in the tub 4 free liquor.
  • the signals from the drive motor 14, pressure sensor 15, ozone generator 20, blower 19, ozone sensor 31, etc. are supplied to the controller 12, although not shown for reasons of clarity.
  • an aqueous liquid 6 from the tub 4 as a treatment container can likewise be temporarily stored in the storage container 16 for further uses.
  • the aqueous liquid 6 is conveyed back into the tub 4 via a return line 32, in which a storage pump 35 is located in this embodiment.
  • a return line 32 in which a storage pump 35 is located in this embodiment.
  • the cached aqueous liquid 6 can also be conveyed via the dispensing dish 1 1 back into the tub 4 and into the drum 2 located therein.
  • an oxidant supply line 36 may be used for the tub 4 to direct ozone directly into the tub 4.
  • detergent be rinsed with fresh water from the water supply 8 into the tub 4. It is generated and provided while carrying out a treatment process of articles, here a laundry treatment in the drum 2, an oxidant-containing solution.
  • the oxidant generator 20 is here an ozone generator.
  • the air required for the generation in the ozone generator 20 is provided by suction from the installation room of the household appliance by means of a blower 19 through the supply air duct 30 for the oxidant generator.
  • the ozone generated in the ozone generator 20 can be introduced as a gas into water, which was conducted from the water supply 8 via the line 32 into the storage tank 16.
  • FIG. 1 the ozone generator
  • an oxidizing agent in this case ozone-containing solution
  • a container 38 before finally being brought together with an aqueous solution from the storage container 16 for its disinfection.
  • the generation and provision of oxidizing agent can be additionally supported by the use of plasma generators 33, which are present in the here shown third embodiment of a household appliance respectively in the dispenser 1, the container 38 for storing an oxidant-containing solution and the storage container 16.
  • the plasma generator 33 in this embodiment, not shown in detail here, comprises a first electrode made of copper, a dielectric made of polytetrafluoroethylene and a second electrode made of copper.
  • the plasma generators 33 are used here to generate a cold atmospheric pressure plasma in air and are each at a distance of 0.5 to 1, 5 cm to an inner surface of the storage container, container and Ein Togetherschale.
  • an aqueous solution containing ozone as an oxidizing agent is provided in the storage container 16 and / or in the container 38. Since there can be a lot of time available for the production of ozone, it is also possible to use an ozone generator with a relatively small capacity for ozone production.
  • a used for a laundry treatment process in the tub 4 aqueous solution 6 can be transferred via a storage line 34 using a drain pump 22 into the storage tank 16.
  • a relatively clean aqueous liquid for example from one of the rinses used.
  • the loading of dirt and detergents can be detected by a sensor 41 mounted in the tub, which can possibly also cause an aqueous liquid 6 only up to a maximum load of dirt and Detergent is transferred to the storage tank 16.
  • the sensor 41 may also be used to control the production and provision of an optimum amount of oxidant-containing solution.
  • a stirrer 42 for intensive mixing of aqueous liquid 6 and oxidant-containing solution is present in the storage container 16.
  • a display device 29 provides an audible and / or visual indication of on-going generation of oxidant and / or removal of excess oxidant.
  • washing machine washing machine
  • Treatment container for receiving objects to be treated e.g. Lye container with drum arranged therein
  • Oxidant removal device e.g. Ozone removal device Blower
  • Oxidant generator e.g. ozone generator
  • Oxidant supply line e.g. Ozone supply line
  • Venturi nozzle between domestic water network and induction bowl
  • Distribution node for ozone-containing air

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

L'invention concerne un procédé de fonctionnement d'un appareil ménager (1) présentant une cuve de traitement (2, 4) destinée à recevoir des objets à traiter (7), un réservoir (16) servant à stocker un fluide aqueux (6), au moins une pompe (22, 35) servant à transporter le fluide aqueux (6) entre le réservoir (16) et la cuve de traitement (2, 4) et un générateur de moyen d'oxydation (20) relié à un réservoir (38) servant à stocker une solution aqueuse de moyen d'oxydation qui a été générée dans le générateur de moyen d'oxydation (20). Le procédé comprenant la réalisation des étapes suivantes qui se chevauchent dans le temps : (a) exécution d'un programme de traitement des objets (7) dans la cuve de traitement (2, 4); (b) génération d'un moyen d'oxydation dans le générateur de moyen d'oxydation (20); et (c) transfert dans le réservoir (38) et mise à disposition du moyen d'oxydation dans ce réservoir. L'invention concerne en outre un appareil ménager (1) approprié pour mettre en œuvre ce procédé.
EP12812577.0A 2011-12-21 2012-12-17 Procédé de fonctionnement d'un appareil ménager comprenant un réservoir accumulateur et un générateur de moyen d'oxydation, et appareil ménager correspondant Active EP2794976B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011089386A DE102011089386A1 (de) 2011-12-21 2011-12-21 Verfahren zum Betrieb eines Hausgeräts mit einem Speicherbehälter und einem Oxidationsmittelgenerator sowie hierfür geeignetes Hausgerät
PCT/EP2012/075790 WO2013092488A1 (fr) 2011-12-21 2012-12-17 Procédé de fonctionnement d'un appareil ménager comprenant un réservoir accumulateur et un générateur de moyen d'oxydation, et appareil ménager correspondant

Publications (2)

Publication Number Publication Date
EP2794976A1 true EP2794976A1 (fr) 2014-10-29
EP2794976B1 EP2794976B1 (fr) 2021-02-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12812577.0A Active EP2794976B1 (fr) 2011-12-21 2012-12-17 Procédé de fonctionnement d'un appareil ménager comprenant un réservoir accumulateur et un générateur de moyen d'oxydation, et appareil ménager correspondant

Country Status (5)

Country Link
EP (1) EP2794976B1 (fr)
CN (1) CN104204330B (fr)
DE (1) DE102011089386A1 (fr)
IN (1) IN2014KN01070A (fr)
WO (1) WO2013092488A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013224520B4 (de) * 2013-11-29 2020-06-25 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem Speicherbehälter zur Speicherung von Grauwasser
DE102014220355B3 (de) * 2014-10-08 2016-01-21 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Ozonerzeugungseinrichtung
EP3415069A1 (fr) * 2017-06-16 2018-12-19 Sanhua AWECO Appliance Systems GmbH Eau activée par plasma pour désinfecter des appareils domestiques
WO2021014035A1 (fr) * 2019-07-19 2021-01-28 Lopar Factory, S.L. Dispositif pour le traitement de l'eau
IT201900019436A1 (it) 2019-10-21 2021-04-21 Tonello Srl Apparecchiatura di decolorazione o trattamento di manufatti, quali, ad esempio, capi di abbigliamento
ES1287427Y (es) * 2022-01-25 2022-05-23 Lopar Factory S L Sistema para el tratamiento de agua/aire para el sector de la agricultura e industrial.

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DE3232057A1 (de) 1982-08-28 1984-03-01 Rudolf 3501 Schauenburg Gesslauer Reinigungsmaschine fuer waesche, geschirr od. dgl.
US5493743A (en) 1994-07-22 1996-02-27 Tri-O-Clean Laundry, Inc. Ozone assisted laundry wash process and waste water treatment system
US5960649A (en) 1998-09-15 1999-10-05 Envirocleanse Systems, Inc. Ozonated laundry system including adapter and sparging rod
CN2617367Y (zh) * 2003-05-14 2004-05-26 郑汉平 一种臭氧水消毒洗涤机
DE10360906A1 (de) 2003-12-23 2005-07-28 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine zur Verwendung von Ozon
GB2414023B (en) * 2004-05-11 2008-04-09 Jla Ltd Washing machine, ozone dissolving apparatus and method of washing
DE102005004091A1 (de) * 2004-12-09 2006-06-22 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit Ozonspeicher
JP2007181603A (ja) * 2006-01-10 2007-07-19 Sanyo Electric Co Ltd 洗濯機およびオゾン発生装置
JP4711839B2 (ja) 2006-01-30 2011-06-29 三洋電機株式会社 洗濯機
AU2006202541A1 (en) 2006-06-15 2008-01-10 Ozone Technologies Pty Limited System and Device for Introducing Ozone into a Washing Apparatus
EP2126181B1 (fr) 2007-03-29 2011-08-17 Arçelik Anonim Sirketi Lave-linge
DE102009026827A1 (de) * 2009-06-08 2010-12-09 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät mit einem Ozongenerator und einer Ozonbeseitigungsvorrichtung
DE102010027795A1 (de) * 2010-04-15 2011-10-20 BSH Bosch und Siemens Hausgeräte GmbH Hausgerät mit Plasmagenerator und Verfahren zu seinem Betrieb
EP2390398A1 (fr) * 2011-07-12 2011-11-30 V-Zug AG Appareil ménager avec dispositif de traitement de l'eau pour le traitement de l'eau de processus à stocker

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Also Published As

Publication number Publication date
CN104204330A (zh) 2014-12-10
DE102011089386A1 (de) 2013-06-27
EP2794976B1 (fr) 2021-02-17
WO2013092488A1 (fr) 2013-06-27
CN104204330B (zh) 2016-09-14
IN2014KN01070A (fr) 2015-10-09

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