EP2816150A2 - Appareil ménager à conduite d'eau ayant un filtre à lessive - Google Patents

Appareil ménager à conduite d'eau ayant un filtre à lessive Download PDF

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Publication number
EP2816150A2
EP2816150A2 EP14003297.0A EP14003297A EP2816150A2 EP 2816150 A2 EP2816150 A2 EP 2816150A2 EP 14003297 A EP14003297 A EP 14003297A EP 2816150 A2 EP2816150 A2 EP 2816150A2
Authority
EP
European Patent Office
Prior art keywords
filter
ball bed
appliance according
bed filter
domestic appliance
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
EP14003297.0A
Other languages
German (de)
English (en)
Other versions
EP2816150A3 (fr
EP2816150B1 (fr
Inventor
Markus Zwimpfer
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.)
V-Zug AG
Original Assignee
V-Zug AG
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 V-Zug AG filed Critical V-Zug AG
Priority to SI201430737T priority Critical patent/SI2816150T1/en
Priority to PL14003297T priority patent/PL2816150T3/pl
Priority to EP14003297.0A priority patent/EP2816150B1/fr
Priority to DK14003297.0T priority patent/DK2816150T3/en
Publication of EP2816150A2 publication Critical patent/EP2816150A2/fr
Publication of EP2816150A3 publication Critical patent/EP2816150A3/fr
Application granted granted Critical
Publication of EP2816150B1 publication Critical patent/EP2816150B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • 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
    • 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
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/06—Water supply, circulation or discharge information
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/26—Indication or alarm to the controlling device or to the user
    • 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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements

Definitions

  • the invention relates to a water-conducting household appliance with a line or circulation system and a filter for the flowing in the line system process liquid.
  • Water-conducting household appliance with a line or circulation system and a filter for process fluid are, for example, dishwashers, washing machines or automatic washing machines.
  • the piping system for domestic water appliances can also contain measuring devices which make it possible to monitor or control the processes taking place in the device, in particular the properties of the process fluid in the pipeline system.
  • the optimum surfactant concentration are determined and monitored by means of a suitable measuring device, which allows automatic adjustment of the amount of detergent.
  • Household appliances of this type are for example in EP-2319382 and EP-2422678 disclosed.
  • the filter reduces the need for cleaning by the user and in particular is able to reduce the pollution of a built-in piping system measuring device or even prevent. This object is achieved by the household appliance according to claim 1.
  • the household appliance has at least one ball bed filter or granulate filter in the line system.
  • the ball bed filter or granulate filter is preferably designed with a self-cleaning system or regeneration system.
  • the self-cleaning system or regeneration system of the filter has, in particular, a backwashing driven by gravity or decoupled from the water pressure in the household line.
  • the construction of a necessary for the backwashing pressure is preferably done by building a water column. This water column can particularly preferably be kept constant by means of an overflow guided in the treatment container on the filter.
  • the backwash in the vicinity of the inlet to the filter has a flow-forming element which prefers peripheral flow or edge flow to a central flow through the ball bed of the filter.
  • the ball bed filter preferably has a main chamber with the balls or the granules, which projects at least partially from above into an outlet chamber.
  • the outlet opening of the filter is preferably located above the lower end of the main chamber, more preferably above the level occupied by the balls at rest.
  • the discharge chamber of the ball bed filter during operation contains sufficient liquid to keep the balls in the main chamber in a state immersed in the liquid.
  • the ball bed filter preferably also has a secondary input filter or prefilter.
  • the input filter is preferably arranged so that not only liquid, which flows through the entrance into the ball bed filter, passes through the input filter, but also liquid, which flows through an overflow from the filter. Due to the overflowing liquid, the pre-filter can be cleaned.
  • the inlet area of the ball bed filter can be designed so that a larger amount of inflowing liquid leaves the entrance area directly through the overflow without passing through the actual filter. For example, less than 50 percent or even less than 20 percent of the fluid entering the entrance of the filter may pass through the actual ball bed filter.
  • the ball bed filter is part of a circulation circuit for the process water in order to filter impurities from the process water.
  • the circulation circuit may include a first, primary circuit and a second, secondary circuit, with a much larger amount of process fluid flowing through the primary circuit than through the secondary circuit.
  • the ball bed filter is preferably part of the secondary circuit in such a configuration.
  • the household appliance has a measuring device in the piping system, which in use serves to determine one or more properties of the process water.
  • the measuring device can be connected to a control system of the household appliance and provide a parameter used for process control.
  • the measuring device may be, for example, a surface tension sensor or a conductivity sensor or a pH sensor or a combination of a plurality of these sensors.
  • the measuring device is mounted in the line system downstream of the ball bed filter. Should the piping system be oriented to change the direction of flow in certain operating conditions, the directional indication "downstream" is given by the direction in which the process water flows most of the time during a complete cycle of operation. By this method of attachment process water flows through the filter first before it passes the measuring device.
  • the measuring device and the ball bed filter are part of a secondary circuit for the process fluid.
  • the water-conducting household appliance is in particular a dishwasher or a washing machine.
  • detergents used which affect the surface tension of the process fluid, so that the surface tension is an important parameter in the control of the device. Further details can be found in EP2319382 ,
  • the controller 10 is designed to control the dosage of detergent depending on the signal of the measuring device 9, for example, such that in the process phases provided for the surface tension of the wash liquor has a desired value without too much detergent is used for this purpose. Details are in EP2319382 described.
  • the washing machine further includes a ball bed filter 11, which in the example shown is part of the supply line to the measuring device 9.
  • the ball bed filter 11 is connected via a supply line 111 to the circulation circuit of the washing machine, ie, in operation, a portion of the circulating wash liquor is coupled out and passed to the filter 11.
  • the decoupled part of the wash liquor is separated into two partial streams.
  • the larger partial flow (90-95%) is returned via an overflow on the filter 11 directly into the tub 1.
  • a smaller partial flow of the decoupled wash liquor flows through the filter 11 and is transported via the line 117 to the measuring device 9 and from there back into the tub 1.
  • the filter 11 still connected to a cleaning line 118. Details of the filter 11 and its connections are described in more detail below.
  • Fig. 2-4 show an embodiment of the ball bed filter 11.
  • the elements are housed in a cage that prevents them from traveling with the flow. In normal operation, the elements are forced by the flow against the exit side of the cage and form a filter bed which passes the liquid to be filtered to exit at the exit side of the filter.
  • the properties of the ball bed filter can be determined, among other things, by the number or density, the size and the nature of the particulate elements.
  • the particulate elements are designed so that the ball bed filter 11 retains solids in the process water up to a size of about 0.2 millimeters.
  • the particulate elements of the ball bed filter 11 will be referred to hereinafter as spheres. It should be understood, however, that these elements do not necessarily have to have a spherical shape.
  • the filter 11 has a feed tube 111 in the inlet region.
  • the supply pipe 111 communicates with a main chamber 112 of the filter 11, wherein between the supply pipe 111 and the main chamber 112, a pre-filter 113 is attached.
  • the supply pipe 111 also opens in the inlet region of the filter 11 into an overflow pipe 114.
  • the inlet portion of the filter 11 with the feed tube 111, the opening to the main chamber 112, the pre-filter 113, and the overflow tube 114 is designed and dimensioned such that the majority of the liquid entering through the feed tube 111 directly through the overflow tube 114 the filter 11 again leaves. This flow flows along one side of the pre-filter 113 and can thus exert a cleaning effect on the pre-filter.
  • the openings of the prefilter 113 are dimensioned such that the particulate elements of the ball bed filter 11 can not be washed out of the main chamber 112 through the inlet area.
  • the lattice spacings of the prefilter bars are selected so that the spherical elements can not pass with one in the range of 5 mm to 20 mm and are held in the main chamber 112.
  • FIG. 3A and 3B show the inlet area of the filter 11 in a cross section perpendicular to the flow direction through the feed tube 111 (FIGS. FIG. 3A ) or in cross-section parallel to the flow direction ( FIG. 3B ).
  • the prefilter 113 is composed of six bars arranged substantially parallel to the main flow direction, which block the downwardly directed entrance to the main chamber 112 of the ball bed filter 11.
  • the particulate elements which form the ball bed.
  • the filter 11 is oriented so that the balls are deposited on a perforated plate 115 under the influence of gravity.
  • the openings in the perforated plate 115 are dimensioned such that the particulate elements are retained in the main chamber 112.
  • the pre-filter forms 113 and the perforated plate 115 has a cage which holds the balls of the ball bed filter 11 in the main chamber 112.
  • filtered liquid flows through the perforated plate 115 into an outlet chamber 116 of the filter 11.
  • the outlet chamber 116 has a drain 117.
  • the drain 117 is mounted so that the filtered liquid can drain only when its level exceeds that of the ball bed or at least the perforated plate 115.
  • the level of the ball bed is defined as the height or thickness of the layer which the balls assume when they have settled completely on the perforated plate 115.
  • the ball bed filter 11 is designed such that the particulate elements are below the liquid level in the main chamber 112 of the filter 11, even if no liquid flows through the filter.
  • the ball bed filter 11 is provided with a cleaning system or regeneration system.
  • the regeneration system essentially has a riser 118 through which cleaning liquid can enter from below into the bottom region of the outlet chamber 116.
  • the cleaning liquid tap water, which can flow from the conduit 3 via an air gap 31 in the tube 118. Through the air gap, the regeneration system is isolated from the water pressure in the line 3.
  • the pressure required to clean the filter 11 is determined by the height of the water column or by the hydrostatic pressure in the riser 118.
  • the described cleaning system has no pump or other internal electric drive to build up a water pressure needed to flush the ball bed and is based solely on the action of gravity as a driving force.
  • different pressures can be set via the valve 30 in the line 3.
  • the water flows at least for the most part through the mixing container 4 and via the line 5 in the tub 1.
  • the valve 30 At a low pressure, which is adjusted by the valve 30, the water flows preferably in the hopper 31 and thus in the backwash.
  • This solution can be equipped with a few additional moving elements, the filter system with a self-cleaning.
  • the height of the water column in the tube 118 exceeds the height at which the overflow tube 114 is mounted in the inlet region of the filter 11.
  • the entire filter 11 is quickly filled up to the height of the overflow pipe 114.
  • the balls in the main chamber 112 are swirled apart and residues which have settled between the balls in the normal filter operation are carried by the flow of the rinsing liquid upwards and washed over the overflow pipe 114 from the filter , By the same process and the pre-filter 113 is freed from residues.
  • the cleaning system still has a flow-forming element which is suitable, the effect of To homogenize rinse liquid over the entire cross section of the main chamber of the filter.
  • the perforated plate 115 which closes the main chamber 112 of the filter 11 downwards, designed as such a flow-forming element.
  • the perforated plate 115 thereto in a circumferentially extending edge zone, a greater ratio or density of openings than in its central zone.
  • the perforated plate 115 can have a greater density of openings of the same size at the edge than in the center, as in the example of FIG. 4A or the openings at the edge may have a larger cross-sectional area than openings in the center as in the example of FIG. 4B ,
  • the household appliance is designed for a specific purpose, it is to be understood that the mechanical and electrical components are suitable for this purpose and the controller is designed to control the mechanical and electrical components in such a way that this purpose is achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filtration Of Liquid (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)
EP14003297.0A 2014-09-24 2014-09-24 Appareil ménager à conduite d'eau ayant un filtre à lessive Active EP2816150B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SI201430737T SI2816150T1 (en) 2014-09-24 2014-09-24 A water-based household appliance with an alkaline filter
PL14003297T PL2816150T3 (pl) 2014-09-24 2014-09-24 Prowadzący wodę sprzęt gospodarstwa domowego z filtrem ługu
EP14003297.0A EP2816150B1 (fr) 2014-09-24 2014-09-24 Appareil ménager à conduite d'eau ayant un filtre à lessive
DK14003297.0T DK2816150T3 (en) 2014-09-24 2014-09-24 Aquatic household appliance with lye filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14003297.0A EP2816150B1 (fr) 2014-09-24 2014-09-24 Appareil ménager à conduite d'eau ayant un filtre à lessive

Publications (3)

Publication Number Publication Date
EP2816150A2 true EP2816150A2 (fr) 2014-12-24
EP2816150A3 EP2816150A3 (fr) 2015-04-15
EP2816150B1 EP2816150B1 (fr) 2018-03-14

Family

ID=51625772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14003297.0A Active EP2816150B1 (fr) 2014-09-24 2014-09-24 Appareil ménager à conduite d'eau ayant un filtre à lessive

Country Status (4)

Country Link
EP (1) EP2816150B1 (fr)
DK (1) DK2816150T3 (fr)
PL (1) PL2816150T3 (fr)
SI (1) SI2816150T1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111560753A (zh) * 2019-02-13 2020-08-21 Bsh家用电器有限公司 用于处理洗涤物的家用器具
WO2020187638A1 (fr) * 2019-03-15 2020-09-24 BSH Hausgeräte GmbH Appareil de soin du linge muni d'un élément filtrant
WO2021197937A1 (fr) * 2020-04-03 2021-10-07 IFP Energies Nouvelles Systeme et procede regenerable de filtration de microfibres d'un liquide de vidange
EP4385603A1 (fr) * 2022-12-16 2024-06-19 Arçelik Anonim Sirketi Appareil électroménager comprenant un élément filtrant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2319382A1 (fr) 2010-10-14 2011-05-11 V-Zug AG Lave-vaisselle ou lave-linge doté d'un dispositif de mesure pour mesurer la tension de surface de la lessive
EP2422678A1 (fr) 2011-10-05 2012-02-29 V-Zug AG Appareil ménager transportant de l'eau doté d'un dispositif de mesure de la tension de surface lavable

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166156B (de) * 1954-08-18 1964-03-26 Nat Engineering Company Of Can Nassabscheider fuer staubhaltige Luft oder Gase
US5800628A (en) * 1996-10-22 1998-09-01 Honeywell Inc. Continuous cycle operation for dishwashers using turbidity sensor feedback
DE102010000763A1 (de) * 2010-01-11 2011-07-14 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Wasserführendes Hausgerät mit einem Filter
ES2435845T3 (es) * 2011-08-18 2013-12-23 Miele & Cie. Kg Bomba para el líquido de lavado con cartucho de filtro para una máquina lavadora

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2319382A1 (fr) 2010-10-14 2011-05-11 V-Zug AG Lave-vaisselle ou lave-linge doté d'un dispositif de mesure pour mesurer la tension de surface de la lessive
EP2422678A1 (fr) 2011-10-05 2012-02-29 V-Zug AG Appareil ménager transportant de l'eau doté d'un dispositif de mesure de la tension de surface lavable

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111560753A (zh) * 2019-02-13 2020-08-21 Bsh家用电器有限公司 用于处理洗涤物的家用器具
CN111560753B (zh) * 2019-02-13 2024-03-22 Bsh家用电器有限公司 用于处理洗涤物的家用器具
WO2020187638A1 (fr) * 2019-03-15 2020-09-24 BSH Hausgeräte GmbH Appareil de soin du linge muni d'un élément filtrant
CN113574221A (zh) * 2019-03-15 2021-10-29 Bsh家用电器有限公司 具有过滤器元件的洗涤物护理器具
CN113574221B (zh) * 2019-03-15 2023-08-25 Bsh家用电器有限公司 具有过滤器元件的洗涤物护理器具
WO2021197937A1 (fr) * 2020-04-03 2021-10-07 IFP Energies Nouvelles Systeme et procede regenerable de filtration de microfibres d'un liquide de vidange
FR3108921A1 (fr) * 2020-04-03 2021-10-08 IFP Energies Nouvelles Systeme et procede regenerable de filtration de microfibres d'un liquide de vidange
FR3108922A1 (fr) * 2020-04-03 2021-10-08 IFP Energies Nouvelles Systeme et procede regenerable de filtration de microfibres d'un liquide de vidange
CN115298383A (zh) * 2020-04-03 2022-11-04 Ifp新能源公司 用于从废液中过滤微纤维的可再生的系统和方法
EP4385603A1 (fr) * 2022-12-16 2024-06-19 Arçelik Anonim Sirketi Appareil électroménager comprenant un élément filtrant

Also Published As

Publication number Publication date
DK2816150T3 (en) 2018-05-22
EP2816150A3 (fr) 2015-04-15
PL2816150T3 (pl) 2018-10-31
EP2816150B1 (fr) 2018-03-14
SI2816150T1 (en) 2018-06-29

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