WO2013068300A1 - Machine à laver équipée d'un dispositif de filtration et son procédé de fonctionnement - Google Patents

Machine à laver équipée d'un dispositif de filtration et son procédé de fonctionnement Download PDF

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Publication number
WO2013068300A1
WO2013068300A1 PCT/EP2012/071684 EP2012071684W WO2013068300A1 WO 2013068300 A1 WO2013068300 A1 WO 2013068300A1 EP 2012071684 W EP2012071684 W EP 2012071684W WO 2013068300 A1 WO2013068300 A1 WO 2013068300A1
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WO
WIPO (PCT)
Prior art keywords
filtration device
washing machine
tub
filtration
water
Prior art date
Application number
PCT/EP2012/071684
Other languages
German (de)
English (en)
Inventor
Antonio BARRADO FRANCO
Andreas Bischof
Andreas Hanau
Hartmut Schaub
Original Assignee
BSH Bosch und Siemens 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 Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Priority to CN201280055239.8A priority Critical patent/CN103917710B/zh
Priority to IN880KON2014 priority patent/IN2014KN00880A/en
Priority to EP12786894.1A priority patent/EP2776618A1/fr
Priority to RU2014122850/12A priority patent/RU2586044C2/ru
Publication of WO2013068300A1 publication Critical patent/WO2013068300A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/10—Filtering arrangements
    • 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
    • D06F34/22—Condition of the washing liquid, e.g. turbidity

Definitions

  • the invention relates to a washing machine with a filtration device and a method for their operation.
  • the invention relates to a washing machine with a tub, a laundry drum, a water supply system, a drain pump, a program control and at least one filtration device and a method for treating laundry in such a washing machine.
  • the currently common laundry treatment processes in a washing machine consist of several treatment steps (wetting phase, pre-wash, main wash, rinse), which are each associated with a more or less complete replacement of the aqueous liquid in the tub.
  • Each laundry treatment step generally begins with the supply of fresh water, which is disposed of as wastewater at the end of each treatment step.
  • treatment agent residues for example detergents, softeners
  • spin-drying cycles are switched, in which the drum is rotated at a high number of revolutions.
  • the water consumption is an important operating size. For economic and ecological reasons, it is desirable to keep the water consumption as low as possible, whereby due to the mechanical engineering conditions and the suction behavior of the laundry to be treated a minimum consumption of water is predetermined.
  • a rinsing phase with one or more rinsing steps with water.
  • the items of laundry are freed from the wash liquor enriched with impurities and cleaning agents and, if appropriate, residues of impurities and cleaning agents still adhering to the laundry items.
  • the remaining on the fibers of the laundry after the rinsing phase traces of such substances are all the more less than more water used during rinsing and / or more frequent rinsing with water.
  • the time and amount of water used for rinsing should be reduced due to the demands of users of washing machines and in view of a generally desirable economical use of water while maintaining a high rinsing efficiency.
  • DE 10 2009 055 276 A1 describes a washing machine with a lye container, a laundry drum, a water supply system and a lye drain system with a drain pump, a program control, a desalting device for producing demineralized water and a rinse water storage, wherein the washing machine has a soft water tank, via the Desalting device is connected to the water supply system.
  • the desalting device is in particular a reverse osmosis device, a nanofiltration device, an electrodialysis device and / or an ion exchanger.
  • DE 19 44 397 A describes a washing machine or dishwasher with a device for water softening, which works on the principle of reverse osmosis, with at least one semipermeable film, which is associated with its one surface of a water supply line and with its other surface of a water drain line.
  • a dishwasher is shown, in which a reservoir for softened water can be provided, which is equipped with a drain valve.
  • DE 197 09 085 A describes a method for washing laundry, in particular in a domestic washing machine, in which the laundry is treated in a suds container during a washing section with washing liquid and during subsequent rinsing sections with rinsing liquid.
  • the tub is emptied, with washing liquid and / or rinsing liquid of at least one rinsing section being emptied into a collecting container and, after conditioning by a reverse osmosis, micro, ultra or nanofiltration process, with intermediate storage in a storage container be reused.
  • the treated washing or rinsing liquid is fed to a later rinsing section of the same program sequence.
  • DE 38 05 565 A1 describes a method and a device for cleaning soiled parts by means of a washing or rinsing agent containing washing or rinsing liquor at elevated temperature, in which after washing or rinsing the washing or rinsing liquor passed through a filter which removes fat and / or dirt from the washing or rinsing liquor, and the thus-filtered washing or rinsing liquor with the washing or rinsing agent contained therein is then stored for use in a further washing or rinsing process.
  • EP 0 578 006 A1 describes a method for washing clothes or dishes, comprising at least one washing phase and a plurality of subsequent rinsing phases, these phases being preceded by water filling phases, in which the liquid is introduced into a suitable container containing the objects to be treated , Then there are phases in which the liquid used for a single treatment is led out of the container.
  • the liquid used for the rinsing phases is subjected to a preceding cleaning phase, which consists of at least one treatment by reverse osmosis or ultrafiltration or nanofiltration or a combination thereof.
  • EP 0 467 028 A1 describes a process for treating laundry or dishes comprising a preliminary water purification phase, at least one water filling phase in which this water is introduced into a receiving container, at least one washing phase and at least one rinsing phase, wherein the water purification phase is carried out by the water for the washing phase is supplied to at least one of reverse osmosis or ultrafiltration or a combination of both.
  • EP 0 845 555 A1 describes a method and a system for washing textiles in which one or more washing and rinsing cycles are carried out in one step and the water from this step is fed into a reverse osmosis unit in order to remove impurities from the water , Then the water is recycled into the washing machine.
  • WO 02/057531 A1 describes a system and a method for an economically and environmentally feasible central treatment of laundry, in which the Washing or rinsing water is then filtered with at least one filter.
  • Post-published EP 2 455 533 A1 describes a method for operating a washing machine and a washing machine, wherein the washing machine can be operated in a so-called recirculation washing mode in which a filter clogging state of a filter for the washing liquid is tracked.
  • the recirculation wash mode is deactivated and replaced by a noncirculating wash mode.
  • the aqueous liquid is passed through a washing liquid filter 13.
  • a draining filter element 8 is arranged so that the wash liquid is disposed of through this drain filter element.
  • the object of the present invention was to provide a washing machine and a method for its operation with reduced water consumption. Preferably, this method should require less time to carry out a laundry treatment.
  • the object underlying the invention is achieved by a washing machine and a method for treating laundry in a washing machine according to the respective independent claim.
  • Preferred embodiments of the invention are set forth in the respective dependent claims and the following description and attached drawing.
  • Preferred embodiments of the washing machine correspond to preferred embodiments of the method and vice versa, although not separately pointed out here in each case.
  • the invention thus relates to a washing machine with a tub, a washing drum, a water supply system, a drain pump, a program control and at least one filtration device, wherein the at least one filtration device between the tub and a supply line to the tub is arranged and the washing machine is configured so that an aqueous liquid present in the tub can be at least temporarily filtered during a laundry treatment step by passing through the at least one filtration device and can be returned to the tub, whereby at least two filtrate Onsvoriquesen different average pore size are available.
  • the washing machine is designed so that an aqueous liquid present in the tub can be at least temporarily filtered during a laundry treatment step by passing through at least two filtration devices of different average pore size and fed back to the tub.
  • the water supply system may also be connected to the filtration device, so that, for example, a desalination of the tap water used can be made.
  • the washing machine is designed so that the aqueous liquid present in the tub is at least temporarily filtered during a laundry treatment step by passing through the at least one Filtrationsvor- direction and fed back to the tub.
  • this does not exclude that the aqueous liquid is passed back into the tub in a lack of functionality of a filtration device, for example by clogging, by a filter bypass line to the filtration devices over.
  • the passage of the aqueous fluid through the at least one filtration device may be interrupted.
  • the passage of the aqueous liquid through the filtration device is carried out using a pump.
  • a pump generally used in a washing machine as part of a lye drainage system can be used. The interruption of the filtration can then be brought about, for example, by stopping the pump.
  • the washing machine therefore has a first sensor for determining the functionality of the filtration device.
  • a first sensor which is expediently arranged downstream of the filtration device, preferably between the filtration device and a storage tank, and measures the content of the water leaving the filtration device of impurities including dirt particles, laundry treatment agents and / or salts.
  • the sensor may be, for example, a turbidity sensor known per se. However, it may also be provided, for example, a sensor for registering the presence of a filter in a filtration device or a filter membrane or a lonenmaleimidepatrone in the washing machine.
  • insoluble particles e.g. Dirt particles are detected qualitatively and quantitatively.
  • a sensor for directly or indirectly detecting ions e.g. an ion-selective electrode or a conductivity sensor.
  • a conductivity sensor generally comprises two electrodes arranged in a liquid to be examined, which allow a statement about the qualitative and quantitative presence of various substances such as salts, detergents or fabric softeners via the conductivity measured between them.
  • the first sensor is preferably connected to the program control and can thus be used to monitor a functional capability, ie filtration capability, of the filtration device.
  • the first sensor preferably measures a content of impurities l imp in the water leaving the filtration device and compares the measured content l imp with a predetermined upper limit value l imp (max) stored, for example, in the program control.
  • l imp (max) stored, for example, in the program control.
  • exhaustion of the filtration capability of the filtration device may preferably be indicated when l imp (max) is reached or exceeded. If the filtration capability of the filtration device is running out, the turbidity value registered by a turbidity sensor or the conductance of the water emerging from the filtration device, which is the first sensor registered by a conductivity sensor, increases.
  • an optionally available display device of the washing machine can then be displayed the need for a filter replacement or a cleaning of the filtration device.
  • the washing machine additionally has a display device for indicating the functionality of the at least one filtration device. If a malfunction is indicated, for example because a filtration Direction is no longer adequately filtered or even clogged, can be indicated by an audible and / or visual indication of a necessary cleaning or even a necessary replacement of a filtration device.
  • one or more buzzers with different sounds or tones, or a speech synthesizer with messages such as "change filter” or “clean filtration device” could be used as the acoustic display device, corresponding qualitative and quantitative information on the presence of contaminants such as dirt particles, fat or salts in the water or other inorganic and / or organic substances in the rinse water can also be given via an optical display device (LED or LCD).
  • LED or LCD optical display device
  • a laundry treatment process is also carried out despite the lack of filtration capability.
  • a second sensor may be provided, which is arranged in the tub of a washing machine and measures a content S of dissolved and / or undissolved inorganic and organic substances in the liquid present there and compares with a predetermined value S (min).
  • the program control can then not only ensure that when reaching or falling below S (min), a water supply is stopped and / or no further rinsing step is carried out.
  • S (min) a water supply is stopped and / or no further rinsing step is carried out.
  • it can also be arranged that further filtration of the aqueous liquid present in the tub is no longer necessary. If appropriate, aqueous liquid, which is in particular a rinsing liquid, can then be temporarily stored in a storage container for reuse.
  • the second sensor is preferably an optical sensor, a turbidity sensor, a Tensi ometer or a conductivity sensor.
  • An optical sensor measures optical properties of a liquid that differ from water containing water and inorganic and / or organic substances. Accordingly, in an aqueous solution, a presence of inorganic and / or organic substances can be determined qualitatively and quantitatively.
  • a tensiometer is generally a dynamic measuring system for determining the content of surface-active substances in a liquid. By means of the tensiometer, a signal proportional to the surface tension of the fluid is often produced by the bubble pressure method, which corresponds to the concentration surface-active substance corresponds.
  • an optical sensor or a conductivity sensor is used as the second sensor.
  • the second sensor is preferably located in the lower region of the tub. If a quantitative determination of the content of salt or inorganic and organic substances for the control of the at least one filtration device is desirable, stored in a memory of the program control, possibly stored data on the relationship between the type and concentration of salts or inorganic and organic substances and the Signal of the respective sensor (eg conductivity, surface tension, optical characteristics) are used.
  • a quantitative determination of the content of salt or inorganic and organic substances for the control of the at least one filtration device is desirable, stored in a memory of the program control, possibly stored data on the relationship between the type and concentration of salts or inorganic and organic substances and the Signal of the respective sensor (eg conductivity, surface tension, optical characteristics) are used.
  • washing machine is designed to guide the aqueous liquid through the at least one filtration device during the entire duration of at least one laundry treatment step.
  • the washing machine according to the invention is designed so that the aqueous liquid in the tub is passed through the at least one filtration device during the entire duration of all laundry treatment steps of a washing program.
  • the washing machine comprises a first storage container for filtered aqueous liquid, i. Water, which is generally downstream of the filtration device and e.g. can be referred to as a soft water tank.
  • a first storage container for filtered aqueous liquid i. Water
  • Water which is generally downstream of the filtration device and e.g. can be referred to as a soft water tank.
  • the used rinse water can be reused.
  • the washing machine according to the invention therefore preferably has a second storage container for an aqueous liquid from the tub, which can be referred to, for example, as a flushing water storage.
  • the used rinse water can be cached, and then used for example in a subsequent wash cycle. Due to the filtration provided in one embodiment of the invention of the rinse water, it is so clean that it can easily be used instead of fresh water for wetting and washing laundry.
  • purified, and in particular desalted, used rinse water has the advantage that the detergent concentration does not have to be adjusted with respect to the degree of hardness, since the desalted water is already “soft” even if it has undergone a rinse cycle according to the invention Even more advantageously than fresh water.RTM ..
  • the rinsing water filtered according to the invention is used in a washing cycle of a following washing process .
  • first and second storage containers mean only different names and do not imply that there are actually two storage containers in the presence of a second storage container
  • first and second storage containers may receive purified / softened water or an aqueous liquid from the tub when it is sufficiently clean, eg, rinsing water.
  • the washing machine according to the invention preferably has a first and / or second storage tank for purified and / or softened water.
  • the size of the storage container can vary widely. In general, their capacity for holding an aqueous liquid is about 70 to 90% of the amount of water provided in the washing machine for washing 6 to 8 kg of laundry. If, for example, 14 to 18 l of water are provided for the washing of 6 to 8 kg of laundry, the storage capacity of the storage containers in a preferred embodiment is 10 to 16 l.
  • the filtration device according to the invention is not limited as long as a desired filtration effect is achieved in one or more selected laundry treatment steps.
  • the filtration device is a reverse osmosis device, a nanofiltration device, an electrodialysis device and / or an ion exchanger.
  • At least two filtration devices of different average pore size and more preferably at least three filtration pre-filters are used. directions of different average pore size available.
  • the washing machine has three filtration devices, of which a first filtration device over a mean pore size of> 1 ⁇ , a second filtration device over a mean pore size of ⁇ 0, 1 ⁇ and a third filtration device over a mean pore size of ⁇ 0 , 01 ⁇ features.
  • the washing machine has four filtration devices, wherein in addition a fourth filtration device with an average pore size of ⁇ 0.001 ⁇ is present.
  • the washing machine of the present invention is a washing machine in the strict sense or a washer-dryer.
  • the term washing machine is used for both devices.
  • the washing machine comprises a program control, via which the programs to be executed are controlled.
  • the program controller is connected to a display device, which may additionally include input devices for inputting data by the user.
  • the ion exchanger used is preferably a synthetic resin ion exchanger, in particular a mixed bed ion exchanger.
  • the ion exchanger can be present in a suitable cartridge ("ion exchanger cartridge"), which has inlet and outlet connections.
  • ion exchanger cartridge which has inlet and outlet connections.
  • the insertion of this cartridge in the washing machine and the removal of the cartridge can be done by means of a suitable opening and mounting device in the washing machine.
  • this cartridge can engage in corresponding inlet and outlet connections of the washing machine.
  • a reverse osmosis device is a device which, in a physical method of membrane filtration called reverse osmosis, allows for concentration of solutes in liquid by reversing the natural osmosis process by applying pressure.
  • the washing machine may advantageously comprise a storage container for water enriched with little or no interfering impurities and / or salts, e.g. a hard water tank. From this, the water stored therein can be mixed with e.g. increased salt concentration can be returned to the tub via appropriate lines.
  • the feeder is also controlled by the program control.
  • the invention also relates to a method for treating laundry in a washing machine with a tub, a washing drum, a water supply system, a drain pump, a program control and at least one filtration device, wherein the at least one filtration device between the Lau- gen Sprinter and a supply line to the tub arranged and the washing machine is designed so that an aqueous liquid present in the tub can be at least temporarily filtered during a laundry treatment step by passing through the at least one filtration device and fed back to the tub.
  • the aqueous liquid present in the tub is filtered at least temporarily during the laundry treatment step by passing through the at least one filtration device and fed back to the tub, wherein at least two filtration devices of different average pore size are present.
  • the washing machine used in the process according to the invention is designed so that an aqueous liquid present in the tub can be filtered at least temporarily during a laundry treatment step by passing through at least two filtration devices of different average pore size and can be returned to the tub.
  • an aqueous liquid used in a laundry treatment step is passed through the inventively provided at least one filtration device and fed back to the tub depending on the type of laundry treatment step and / or a detected loading of the aqueous liquid by impurities and laundry treatment.
  • the aqueous liquid is passed through one of at least three filtration devices, of which a first filtration device has a mean pore size, depending on the type of the laundry treatment step and / or a detected load of the aqueous liquid by impurities and laundry treating agent of> 1 ⁇ , a second filtration device over a mean pore size of ⁇ 0, 1 ⁇ and a third filtration device has a mean pore size of ⁇ 0.01 ⁇ .
  • various specifications of a user of the washing machine can be taken into account in the program control. For example, this may be considered by a user type and / or degree of contamination and type and amount of loading the laundry drum with laundry.
  • the selection of one or more filtration devices and their operating time and operating time in the method according to the invention can also be carried out on the basis of measured values of one or more sensors for the type and amount of impurities or laundry treatment agent.
  • the filtration devices are generally arranged in parallel in the washing machine according to the invention, so that they can be targeted by the aqueous liquid flowing from the tub. In principle, however, a series connection would also be possible.
  • generally controllable supply lines to the filtration devices are present in the washing machine, so that they can be switched on independently of one another.
  • the filtrate from the at least one filtration device is generally recycled continuously back into the tub.
  • interruptions due to water changes or intensive dewatering cycles can at least be reduced, if not avoided. Since parallel to a washing and / or rinsing process the water can be purified from its contents by suitable, ever finer filtration processes, namely a water change can be avoided. Depending on possible water losses, however, water can and is generally supplemented.
  • a laundry treatment process to be carried out in the washing machine according to the invention generally begins with wetting of the items of laundry introduced into the laundry drum with water and bringing the laundry items into contact with a detergent.
  • the cleaning process as well as the rinsing process now generally proceeds with constant reversing of the drum with reversing rhythms adapted to the respective type of textile and an occasional increase in the speed of the washing drum ( ⁇ 200 rpm, as shown in DE 10326551 A).
  • a portion of the washing solution is, for example, continuously pumped through a medium pore filtration device (eg,> 1 ⁇ , microfiltration) and thereby cleaned by coarser particles.
  • Dirt-bearing detergent ingredients can be freed from coarse dirt and again for cleaning the laundry available.
  • the dissolved detergent components are retained and can continue to participate in the washing process. Due to the continuous discharge of dirt components, the washing-active substances of the washing solution are relieved and are available to the washing process again. As a result, the washing result can be improved. It is also possible in general to shorten the washing process while maintaining the previous washing performance.
  • the aqueous liquid e.g. Washing liquor
  • a finer filter device average pore size, for example, ⁇ 0.1 ⁇ m ultrafiltration
  • larger molecules for example surfactants, fats / waxes, degradation products from enzymatic reactions
  • This rinsing process is preferably subsequently terminated by the use of even finer filtration techniques (eg, ⁇ 0.01 ⁇ m, nanofiltration, removal of divalent ions) or, for the conclusion, by reverse osmosis (removal of all dissolved constituents from the water).
  • a rinsing phase is generally carried out subsequent to the actual washing phase, which consists of one or more rinsing steps with water, generally two to three rinsing steps.
  • the detergent components should be removed as completely as possible in the rinsing process.
  • so far in each rinse fresh water is added to the previously dehydrated laundry. Due to the difference in concentration between dissolved substances in the fresh water on the other hand, there is an exchange / compensation of substances in laundry and water. The exchange process is better and faster, the greater the difference in the substance concentrations between laundry and water.
  • these sub-steps can be omitted, since in embodiments of the method according to the invention, the rinse water due to the filtration in at least two filtration devices is always clean and thus purified water gets to be washed laundry. There is always a high concentration gradient between laundry and rinse water. Thus, the laundry can be more quickly and effectively absorbed by ingredients of the laundry treating agent, e.g. Detergent, to be freed. The rinsing result can thus be improved or, while retaining the previous rinsing result, the rinsing process can be shortened.
  • the rinse water due to the filtration in at least two filtration devices is always clean and thus purified water gets to be washed laundry.
  • the laundry can be more quickly and effectively absorbed by ingredients of the laundry treating agent, e.g. Detergent, to be freed.
  • the rinsing result can thus be improved or, while retaining the previous rinsing result, the rinsing
  • the filtration devices and / or the water-carrying components of the washing machine are preferably rinsed.
  • accumulated dirt components of the filtration process concentrateates, which could in particular also lead to adverse hygienic effects removed.
  • the rinse water may be stored after cleaning and reused in the next washing process to achieve further water savings.
  • the amount of water to be used in the laundry treatment process generally depends on the load of the washing machine on laundry.
  • the loading quantity can be determined by a measure known per se.
  • a quantity of water of about 15 to 18 I needed.
  • this amount of water is reduced since, in principle, the aqueous liquid used in the washing phase can be used after at least one filtration.
  • the invention has numerous advantages. Thus, due to generally reduced spin cycles, a relief of the structural components of the washing machine can be achieved.
  • the process according to the invention has the advantage that, while retaining the rinsing effect achievable by conventional rinsing, the total amount of water required for the rinsing phase can be significantly reduced. This is advantageously possible without lengthening the period of time for the entire treatment of the laundry in the washing machine.
  • the water requirement may depend solely on the suction behavior of the laundry and the dead volume of the water-bearing parts of the washing machine. With additional storage of the filtered rinse water present at the end of the process, the consumption of fresh water can be further reduced. It must then only the loss of water (excessive suction when terry towels, removal of concentrate or retentate, system backwash) are compensated.
  • the invention makes it possible to reduce the load on the laundry with undesirable salts and other inorganic and / or organic substances, so that the use of fabric softener can be reduced or avoided.
  • the invention is advantageous if the washing of laundry is to take place at a lowered washing temperature, for example at a temperature in the range of 15 to 20 ° C. Here it is sometimes feared that these low temperatures are not enough to kill germs.
  • the present invention now also contributes to an improvement in hygiene, particularly in such washing processes, in that, in embodiments of the invention, germs can be separated from the washing or rinsing water by means of, for example, reverse osmosis or dialysis.
  • FIG. 1 is a schematic representation of a frontal sectional view of a second
  • Embodiment of a washing machine having three filtration devices and a second storage container.
  • the washing machine has a lye container 1 in which a laundry drum 2 with laundry items 7 located therein can be rotatably mounted and operated by a drive motor 14. 3 means a rotation axis of the drum.
  • a drive motor 14 means a rotation axis of the drum.
  • 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 1, which is guided via an induction dish 1 1, from which the incoming fresh water can transport treatment agent in the tub 1 ,
  • a heater 13 In the tub 1 is a heater 13.
  • Valve 9 and heater 13 can be controlled by a program control 12 in response to a program flowchart.
  • a pressure sensor 15 is provided for the measurement of the hydrostatic pressure p in the tub 1.
  • a first filtration device 17 for purifying the water of relatively small organic and inorganic substances as well as for desalting water which in this embodiment is a reverse osmosis device which is provided in a first filtration line 31 emerging from a central filtration line 23 and is arranged in front of the supply line 10 between dispenser 1 1 and 1 lye container.
  • the reverse osmosis results in a portion of purified water (herein also called “softened” water) collected in a first storage tank 24 for purified and / or softened water
  • the first filtration device 17 is connected to the first storage tank 24 via a first filtrate line 25.
  • the first storage container 24 is in turn connected to the draft container 1 via a second filtrate line 27, so that filtered aqueous liquid (for example soft water) can be added as desired to the liquor container 1 and thus into the laundry drum 2.
  • a first sensor 19 e.g., a turbidity sensor or a conductivity sensor for detecting a content of the water in impurities and / or salts of the water passing through the first filtration device 17.
  • a storage container 18 connected to the first filtration device 17 via a first line 26 for water enriched with impurities and / or salts is additionally provided. Since the first filtration device 17 used in this embodiment is a reverse osmosis device, the water resulting from the filtration, which has a higher concentration of impurities and / or salts, is collected and stored for later use, eg for initial rinses ,
  • storage container 18 is connected via a second line 28 for enriched with impurities and / or salts of water and the supply line 10 to the tub 1.
  • a second storage container 22 is provided for liquid from the tub, which can store the water used in washing the laundry.
  • This water can, in particular, be used for a later wash if it is the previously desalinated and then used during rinsing water.
  • the second storage container 22nd connected via a storage line 34 with the central filtration line 23, which is ultimately connected via the supply line 10 to the tub.
  • a second sensor 20 (conductivity sensor, turbidity sensor) with which the content of the aqueous liquid used in the tub 1 of soluble and insoluble inorganic and organic substances can be determined.
  • data stored in a memory of the program control 12 can be used for the relationship between the type and concentration of particulate impurities, salts, etc., and the conductivity or turbidity.
  • 21 means a display means for indicating the presence of the condition L greater than or equal to L (max) in the water to be used or the condition S less than or equal to S (min) in the rinse water in the tub 1. After comparing a measured content S of inorganic and organic substances with a lower predetermined value S (min) and the determination of reaching or falling below S (min), the filtration of the aqueous liquid is stopped.
  • a pump 16 conveys the aqueous liquid 6 from the tub 1, so that it can be passed through the first filtration device 17.
  • the pump 16 is in this embodiment part of the Laugenablaufsystems the washing machine.
  • About the sewer line 36 16 wastewater can be disposed of by means of the pump.
  • Figure 2 is a schematic representation of a frontal sectional view of a second embodiment of a washing machine having three filtration devices and a second storage container.
  • the second embodiment shown in FIG. 2 differs from the first embodiment no longer claimed in FIG. 1 in that there are three filtration devices 17, 29 and 30.
  • a second filtration device 30 in a second filtration line 33 has a mean pore size of> 1 ⁇ , a third filtration device 29 in a third filtration line 32 over a mean pore size of ⁇ 0, 1 ⁇ and a first filtration device 17 in the first filtration line 31 via a average pore size of ⁇ 0.01 ⁇ .
  • the aqueous liquid 6 is removed from the tub 1 by passage through the filtration devices 17, 29 and 30 filtered with increasing fineness.
  • a first sensor 19 is shown only for the third filtration device 29, with which the purity of the reaching from the third filtration device 29 filtrate can be determined.
  • a filtration bypass line 35 is provided, through which in the event of malfunctions of the filtration devices, the aqueous liquid conveyed by the pump 16 can pass back into the tub 1 via the dispensing dish 1 1.
  • Storage tank for impurity / salt enriched water e.g. Hard water tank
  • first sensor (turbidity sensor, conductivity sensor)
  • second storage tank for purified and / or softened water from tub, e.g. backwash water
  • first storage tank for purified and / or softened water, e.g.

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  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

L'invention concerne une machine à laver comprenant une cuve à lessive (1), un tambour à linge (2), un système d'arrivée d'eau (8, 9), une pompe à lessive (16), un programmateur (12) et au moins un dispositif de filtration (17, 29, 30), le ou les dispositifs de filtration (17, 29, 30) étant disposés entre la cuve à lessive (1) et une conduite (10) allant à la cuve à lessive (1). La machine à laver est configurée de telle façon qu'un liquide aqueux (6) présent dans la cuve à lessive (1) est filtré au moins par intermittence en le faisant passer dans le ou les dispositifs de filtration )17, 29, 30) et peut être renvoyé dans la cuve à lessive (1), et il est prévu au moins deux dispositifs de filtration (17, 29, 30) ayant des tailles de pores moyennes différentes. L'invention concerne en outre un procédé de traitement de linge dans une telle machine à laver.
PCT/EP2012/071684 2011-11-11 2012-11-02 Machine à laver équipée d'un dispositif de filtration et son procédé de fonctionnement WO2013068300A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201280055239.8A CN103917710B (zh) 2011-11-11 2012-11-02 具有过滤装置的洗衣机和用于操作该洗衣机的方法
IN880KON2014 IN2014KN00880A (fr) 2011-11-11 2012-11-02
EP12786894.1A EP2776618A1 (fr) 2011-11-11 2012-11-02 Machine à laver équipée d'un dispositif de filtration et son procédé de fonctionnement
RU2014122850/12A RU2586044C2 (ru) 2011-11-11 2012-11-02 Стиральная машина с фильтрующим устройством и способ эксплуатации стиральной машины

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011086137.8A DE102011086137B4 (de) 2011-11-11 2011-11-11 Waschmaschine mit Filtrationsvorrichtung und Verfahren zu ihrem Betrieb
DE102011086137.8 2011-11-11

Publications (1)

Publication Number Publication Date
WO2013068300A1 true WO2013068300A1 (fr) 2013-05-16

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PCT/EP2012/071684 WO2013068300A1 (fr) 2011-11-11 2012-11-02 Machine à laver équipée d'un dispositif de filtration et son procédé de fonctionnement

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EP (1) EP2776618A1 (fr)
CN (1) CN103917710B (fr)
DE (1) DE102011086137B4 (fr)
IN (1) IN2014KN00880A (fr)
RU (1) RU2586044C2 (fr)
WO (1) WO2013068300A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019081013A1 (fr) 2017-10-25 2019-05-02 E.G.O. Elektro-Gerätebau GmbH Procédé permettant de faire fonctionner une machine à laver et machine à laver
EP3663457A1 (fr) 2018-12-06 2020-06-10 BSH Hausgeräte GmbH Appareil électroménager conducteur d'eau
EP3695768A1 (fr) 2019-02-12 2020-08-19 BSH Hausgeräte GmbH Appareil électroménager doté d'un élément filtrant
WO2020187638A1 (fr) 2019-03-15 2020-09-24 BSH Hausgeräte GmbH Appareil de soin du linge muni d'un élément filtrant
EP3954820A1 (fr) 2020-08-14 2022-02-16 BSH Hausgeräte GmbH Appareil électroménager à circulation de fluide
DE102022207949A1 (de) 2021-08-04 2023-02-09 BSH Hausgeräte GmbH Fluidführendes Haushaltsgerät
US11576551B2 (en) * 2019-04-25 2023-02-14 E.G.O. Elektro-Geraetebau Gmbh Water-conducting household appliance and method for operation thereof

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* Cited by examiner, † Cited by third party
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DE102013224523B3 (de) * 2013-11-29 2015-06-03 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Aufbereitung von gespeichertem Grauwasser
DE102014214353A1 (de) 2014-07-23 2016-01-28 BSH Hausgeräte GmbH Haushaltsgerät
DE102014214351A1 (de) * 2014-07-23 2016-01-28 BSH Hausgeräte GmbH Haushaltsgerät mit einem Umpumpsystem
RU183005U1 (ru) * 2017-08-07 2018-09-07 Александр Ефимович Прокофьев Стиральная машина
SE542804C2 (en) * 2017-08-31 2020-07-14 Cleanguard Ab A method for removing microfibers in a washing liquid in a washing machine and a washing machine
DE102018213381B3 (de) * 2018-08-09 2019-11-07 BSH Hausgeräte GmbH Haushaltsgerät zur Behandlung von Wäsche
DE202018106723U1 (de) * 2018-11-26 2020-02-28 Pas Deutschland Gmbh Filtervorrichtung für eine Waschmaschine und Waschmaschine
DE102019203809B3 (de) 2019-03-20 2020-07-02 E.G.O. Elektro-Gerätebau GmbH Wasserführendes Haushaltsgerät und Verfahren zu seinem Betrieb
TR201921414A2 (tr) * 2019-12-25 2021-07-26 Arçeli̇k Anoni̇m Şi̇rketi̇ Filtre içeren bir çamaşır yıkama makinesi
CN113493989A (zh) * 2020-04-02 2021-10-12 青岛海尔滚筒洗衣机有限公司 一种洗衣机的循环喷淋控制方法及洗衣机
CN113048457B (zh) * 2021-02-27 2022-04-01 深圳市锐钜科技有限公司 多段连续加热装置、加热方法以及应用该装置的家用电器

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944397A1 (de) 1969-09-02 1971-03-11 Bosch Hausgeraete Gmbh Wasch- oder Geschirrspuelmaschine
DE2543946A1 (de) * 1974-10-03 1976-04-08 Henkel & Cie Gmbh Verfahren und vorrichtung zum maschinellen waschen und reinigen von festen werkstoffen unter verwendung phosphatarmer oder phosphatfreier wasch- und reinigungsmittel
DE3713238A1 (de) * 1987-04-18 1988-10-27 Miele & Cie Waschmaschine sowie waschverfahren zur behandlung von reinraumkleidung in einer derartigen maschine
US4833900A (en) * 1986-04-09 1989-05-30 Industrie Zanussi S.P.A. Washing liquid filter in a laundry washing machine
DE3805565A1 (de) 1988-02-23 1989-08-31 Gut Ges Umweltschonende Tech Verfahren und vorrichtung zum reinigen von verschmutzten teilen
EP0467028A1 (fr) 1990-07-18 1992-01-22 Zanussi Elettrodomestici S.p.A. Procédé de traitement de l'eau pour une machine à laver
EP0578006A1 (fr) 1992-07-06 1994-01-12 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Procédé pour purifier l'eau dans une machine à laver
DE19709085A1 (de) 1996-05-15 1997-11-20 Miele & Cie Verfahren zum Waschen und Wäsche unter Verwendung eines Filtrationsverfahrens
EP0845555A1 (fr) 1996-11-27 1998-06-03 Gerardus Theodorus Antonius Maria Wientjens Procédé et dispositif pour laver des textiles et similaires
WO2002048445A1 (fr) * 2000-12-14 2002-06-20 Monotub Industries, Plc Machine a laver ayant un circuit de recirculation pour le liquide de lavage comprenant un filtre submicronique
WO2002057531A1 (fr) 2001-01-18 2002-07-25 Shell Internationale Research Maatschappij B.V. Systeme et procede de traitement central economique et ecologique de buanderie familiale
DE10326551A1 (de) 2003-06-12 2005-01-05 BSH Bosch und Siemens Hausgeräte GmbH Wasch- und Spülverfahren für eine Waschmaschine
DE102009055276A1 (de) 2009-12-23 2011-06-30 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Waschmaschine mit Entsalzungsvorrichtung
EP2455533A1 (fr) 2010-11-22 2012-05-23 Electrolux Home Products Corporation N.V. Procédé de fonctionnement d'une machine à laver et machine à laver

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1688529A1 (fr) * 2005-01-28 2006-08-09 Electrolux Home Products Corporation N.V. Machine à laver avec distributeur de détergent
DE102008042749A1 (de) * 2008-10-10 2010-04-15 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Reinigen einer Ablauge einer Wasch-oder Reinigungsmaschine und Maschine zum Durchführen des Verfahrens

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944397A1 (de) 1969-09-02 1971-03-11 Bosch Hausgeraete Gmbh Wasch- oder Geschirrspuelmaschine
DE2543946A1 (de) * 1974-10-03 1976-04-08 Henkel & Cie Gmbh Verfahren und vorrichtung zum maschinellen waschen und reinigen von festen werkstoffen unter verwendung phosphatarmer oder phosphatfreier wasch- und reinigungsmittel
US4833900A (en) * 1986-04-09 1989-05-30 Industrie Zanussi S.P.A. Washing liquid filter in a laundry washing machine
DE3713238A1 (de) * 1987-04-18 1988-10-27 Miele & Cie Waschmaschine sowie waschverfahren zur behandlung von reinraumkleidung in einer derartigen maschine
DE3805565A1 (de) 1988-02-23 1989-08-31 Gut Ges Umweltschonende Tech Verfahren und vorrichtung zum reinigen von verschmutzten teilen
EP0467028A1 (fr) 1990-07-18 1992-01-22 Zanussi Elettrodomestici S.p.A. Procédé de traitement de l'eau pour une machine à laver
EP0578006A1 (fr) 1992-07-06 1994-01-12 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Procédé pour purifier l'eau dans une machine à laver
DE19709085A1 (de) 1996-05-15 1997-11-20 Miele & Cie Verfahren zum Waschen und Wäsche unter Verwendung eines Filtrationsverfahrens
EP0845555A1 (fr) 1996-11-27 1998-06-03 Gerardus Theodorus Antonius Maria Wientjens Procédé et dispositif pour laver des textiles et similaires
WO2002048445A1 (fr) * 2000-12-14 2002-06-20 Monotub Industries, Plc Machine a laver ayant un circuit de recirculation pour le liquide de lavage comprenant un filtre submicronique
WO2002057531A1 (fr) 2001-01-18 2002-07-25 Shell Internationale Research Maatschappij B.V. Systeme et procede de traitement central economique et ecologique de buanderie familiale
DE10326551A1 (de) 2003-06-12 2005-01-05 BSH Bosch und Siemens Hausgeräte GmbH Wasch- und Spülverfahren für eine Waschmaschine
DE102009055276A1 (de) 2009-12-23 2011-06-30 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Waschmaschine mit Entsalzungsvorrichtung
EP2455533A1 (fr) 2010-11-22 2012-05-23 Electrolux Home Products Corporation N.V. Procédé de fonctionnement d'une machine à laver et machine à laver

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019081013A1 (fr) 2017-10-25 2019-05-02 E.G.O. Elektro-Gerätebau GmbH Procédé permettant de faire fonctionner une machine à laver et machine à laver
US11066771B2 (en) 2017-10-25 2021-07-20 E.G.O. Elektro-Geraetebau Gmbh Method for operating a washing machine and washing machine
EP3663457A1 (fr) 2018-12-06 2020-06-10 BSH Hausgeräte GmbH Appareil électroménager conducteur d'eau
DE102018221092A1 (de) 2018-12-06 2020-06-10 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät
EP3695768A1 (fr) 2019-02-12 2020-08-19 BSH Hausgeräte GmbH Appareil électroménager doté d'un élément filtrant
WO2020187638A1 (fr) 2019-03-15 2020-09-24 BSH Hausgeräte GmbH Appareil de soin du linge muni d'un élément filtrant
US11576551B2 (en) * 2019-04-25 2023-02-14 E.G.O. Elektro-Geraetebau Gmbh Water-conducting household appliance and method for operation thereof
EP3954820A1 (fr) 2020-08-14 2022-02-16 BSH Hausgeräte GmbH Appareil électroménager à circulation de fluide
DE102020210389A1 (de) 2020-08-14 2022-02-17 BSH Hausgeräte GmbH Fluidführendes Haushaltsgerät
DE102022207949A1 (de) 2021-08-04 2023-02-09 BSH Hausgeräte GmbH Fluidführendes Haushaltsgerät

Also Published As

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IN2014KN00880A (fr) 2015-10-02
RU2586044C2 (ru) 2016-06-10
DE102011086137A1 (de) 2013-05-16
CN103917710A (zh) 2014-07-09
DE102011086137B4 (de) 2019-08-22
EP2776618A1 (fr) 2014-09-17
CN103917710B (zh) 2017-03-15
RU2014122850A (ru) 2015-12-20

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