EP2516720B1 - Filtervorrichtung, hausgerät und verfahren zum filtern - Google Patents

Filtervorrichtung, hausgerät und verfahren zum filtern Download PDF

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Publication number
EP2516720B1
EP2516720B1 EP10798073.2A EP10798073A EP2516720B1 EP 2516720 B1 EP2516720 B1 EP 2516720B1 EP 10798073 A EP10798073 A EP 10798073A EP 2516720 B1 EP2516720 B1 EP 2516720B1
Authority
EP
European Patent Office
Prior art keywords
outlet
filter
flow channel
chamber
liquid
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.)
Active
Application number
EP10798073.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2516720A1 (de
Inventor
Frank Kohlrusch
Andreas Ziemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Priority to PL10798073T priority Critical patent/PL2516720T3/pl
Publication of EP2516720A1 publication Critical patent/EP2516720A1/de
Application granted granted Critical
Publication of EP2516720B1 publication Critical patent/EP2516720B1/de
Active legal-status Critical Current
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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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/22—Lint collecting 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
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/24—Condensing arrangements

Definitions

  • the invention relates to a filter device for filtering a liquid of a domestic appliance, comprising: a valveless filter container having a chamber in which at least one filter element is arranged, an inlet opening into the chamber, which fluidly connected by a first opening into the chamber through the filter element is.
  • the invention also relates to a domestic appliance, in particular laundry drying apparatus, with such a filter device and a method for guiding a fluid through such a filter arrangement.
  • a filter device and a household appliance of the type defined in each case emerge from the DE 10 2006 018 469 A1 ,
  • a dual-effluent filtration apparatus in which a filtered liquid drain and an unfiltered liquid drain are provided, and wherein the unfiltered liquid drain is provided with a check valve.
  • a domestic appliance in the form of a laundry drying machine with a closed process air circuit which has a heat exchanger coupled to an internal process air circuit, the heat exchanger serving to cool and condense moist heat of process air discharged from a laundry drum.
  • the heat exchanger may be, for example, an air-to-air heat exchanger or a heat exchanger of a heat pump.
  • the WO 2008/119611 A1 describes a method and a flushing device for cleaning a component, in particular an evaporator, a heat pump, and a washing or tumble dryer with such a device.
  • condensate which in the process air cycle from obtained the drying of wet laundry and collected in a condensate water tank, passed to a provided above the component rinsing out and delivered by the sudden opening on the outlet side as a flood of water to the component to be cleaned.
  • lint and other impurities can be cleaned.
  • the water which is then heavily flocced, then returns to the condensate water tank after the flushing process.
  • this condensate used as flushing liquid itself contains lint, which can accumulate during cleaning or rinsing of the component to be cleaned, which reduces a cleaning effect.
  • That the second flow channel is not shut off for a setting of a filter position means that it has no valve that is operated for a change in the filter position or is operable.
  • a valve may be present in the second flow channel.
  • first minimum flow cross section of the first drain and / or the first flow channel is greater than the second minimum flow cross section of the second drain and / or the second flow channel can also be expressed as a first flow resistance of the first drain and the first flow channel is less than a second flow resistance of the second drain and the second flow channel.
  • the flow cross sections can each be adjusted by appropriate spacers or reducers.
  • the liquid from the inlet through the filter element, the first drain and the first flow channel is pumpable comprises that in the first filter position, the liquid or not essential through the second sequence and the second flow channel is pumpable, since the second flow resistance is too high or the second flow cross section is too low for it.
  • the flow cross sections and correspondingly the flow resistances are designed so that in the first filter position, a high volume flow and consequently a low pressure of the liquid is formed, wherein the pressure is not sufficient to convey the liquid through the second sequence.
  • An advantage of this filter device is that with only one valve in the first flow channel, the liquid streams in both flow channels can be switched on and off alternately. As a result, it is possible to dispense with a valve in the second flow channel, so that, firstly, the filter device can be produced more cheaply and, secondly, the second flow channel is free of failures.
  • the first minimum flow cross section is more than twice as large as the second minimum flow cross section, in particular at least 2.5 times as large.
  • the first minimum flow cross-section, at least in sections is at least about three times as large as the second minimum flow cross-section.
  • first minimum flow cross section has a diameter of about 15 mm to 20 mm, in particular about 20 mm
  • second minimum flow cross section has a diameter of about 7 mm.
  • first outlet has the first minimum flow cross section and the second outlet has the second minimum flow cross section.
  • processes are the places with the smallest flow cross-section.
  • the fluidically subsequent flow channels can have the same or a larger flow cross-section.
  • the processes in the form of nozzles may be formed, to which respective flow channels can be attached in the form of hoses.
  • the hoses may in particular have a slightly larger cross-section than the associated sockets or the same cross section.
  • the location of the smallest flow area may be located in a flow channel, e.g. by means of a reducer inserted in a hose or pipe.
  • the second flow channel has no valve, so not for other purposes than a change in the filter position.
  • a flow channel may simply be formed with a single tube or tube.
  • the first flow channel leads to a washing container.
  • the filtered liquid in particular filtered condensate water, can be used for cleaning one or more components of a domestic appliance, in particular laundry drying apparatus, for example an evaporator of a heat exchanger.
  • the first flow channel may lead directly to a heat exchanger and / or to another component to be cleaned with the filtered liquid.
  • the second flow channel leads to a drain.
  • heavily lint-laden liquid is removed from the domestic appliance, which reduces a lint contamination.
  • the second flow channel lead to a condensate water tank.
  • a fluid loss can be avoided.
  • the filter container comprises: a chamber with the inlet, the first outlet and the second outlet and the filter element, which is arranged between the inlet and the first outlet and the chamber in an inlet-side first chamber part and a second Subdivided chamber part, wherein the filter container can be aligned so that the inlet is arranged below the filter element and the filter element is arranged below the first outlet and wherein the second outlet opens into the first chamber part.
  • a liquid which flows from the inlet through the filter element and further through the first outlet e.g. is pumped up, lint or other contaminants on one side of the filter element deposit. If this liquid flow is reversed, z. B. by a pumping operation is stopped and the liquid due to gravity drops down, the lint are detached from the filter element and can then be easily removed by the second sequence.
  • This filter container has, inter alia, the advantage that it allows maintenance-free operation without manual intervention by a user with high filter performance.
  • the filter container is also very easy and inexpensive to produce.
  • the filter element may have as a filter medium, for example, a sieve, gauze, fleece, etc.
  • the inlet and the first outlet open opposite into the chamber.
  • This can be a high flow rate be achieved in the filter position.
  • it is particularly easy to achieve a uniform backflow and thus complete detachment of lint.
  • a particularly simple structure is thus achievable.
  • the second sequence with respect to the inlet can advantageously open laterally into the chamber.
  • a flow velocity between the inlet and the second inlet can be reduced in comparison with a straight-line or opposing arrangement.
  • the inlet and the second outlet open opposite into the chamber. Then, in particular, the first outlet with respect to the inlet can be arranged laterally on the chamber.
  • the filter element can have an opening which tightly surrounds the second outlet.
  • the opening may preferably be a central opening.
  • a storage volume is present in the first outlet and / or in the first flow channel.
  • the storage volume may, for example, be in the form of a significant channel widening, e.g. a hose widening.
  • the storage volume may be considered as a volume integrated into the filter container, e.g. a chamber, wherein the storage volume can be arranged in the pumping direction at or behind the drain.
  • the storage volume can furthermore be a separately produced storage housing or container introduced into the first flow channel.
  • the object is also achieved by a domestic appliance with at least one such filter device.
  • the household appliance can then be provided, for example, with water laced with fluff o. ⁇ . Contaminated water. Except a relief in the operation of the device and avoidance of incidents (overflow, blockage, low cleaning performance, etc.) can also be saved fresh water.
  • the filter device can be used in a laundry dryer, since there can be effectively cleaned without or with only a small amount of fresh water supplied by lint components and a conventional emptying a lint can (separate lagoons, condensate water tank) can be omitted.
  • the inlet is connected to a pump and / or with a condensate water tank and the first outlet is connected to a flushing device.
  • a cleaning effect can be maintained over an entire drying process.
  • the method in the first filter position has a step of stopping the pump for a predetermined period, in particular before switching to the second filter position.
  • a cleaning of the filter container can be provided by a backflow of liquid from the first outlet and the first flow channel.
  • Fig.1 shows a laundry dryer in the form of an exemplary clothes dryer WG.
  • the tumble dryer WG has a closed process air circuit with a laundry drum WT and a process air duct PL adjoining on both sides.
  • laundry WT laundry W is overflowed by warm and dry process air, which thereby absorbs moisture from the laundry W.
  • the then moist-warm process air is subsequently sucked out of the laundry drum WT through the process air duct PL to a condensation unit VD (which in a conventional tumble dryer may correspond to a water or air-cooled condensation unit and in the case of a heat pump can correspond to a condensation unit VD) and into the condensation unit VD cooled.
  • VD condensation unit
  • the water vapor contained in the process air condenses and drains off as condensate water K into a condensate water tank KW.
  • the process air cool behind the condensation unit VD is further drawn in by a blower G and subsequently blown by a heating unit H (which may correspond to an electrically operated heater in a conventional tumble dryer and which may correspond to a condenser in a heat pump).
  • a heating unit H which may correspond to an electrically operated heater in a conventional tumble dryer and which may correspond to a condenser in a heat pump.
  • the process air is heated and blown again as dry-warm air into the washing drum WT.
  • the process air absorbs, in addition to the moisture from the laundry W, fluff which in the following circulation through the process air duct PL partially attaches to the condensation unit VD and reduces its efficiency and partially reaches the condensate water tub KW with the condensate water K.
  • the blower G can also be arranged at another location in the process air duct PL.
  • a flushing device SP can be provided, which by means of a pump P the condensate water K through a riser SL pumped up in a washing container SB, where it is first collected and discharged as needed by opening a valve VE1 through a downpipe FR to the condensation unit VD.
  • cooling fins can be overflowed in the condensation unit VD with condensate water K at high speed and so entrained.
  • the condensation unit VD should be freed from the lint.
  • the lint-laden condensate water K is then passed back into the condensate water tank KW.
  • FIG. 2A shows a resulting in a filter position first liquid flow through some of the components of the laundry dryer WG Fig.1 , which are provided for supplying the purified condensate water K as the Nutzcroftkeit.
  • the course of the liquid is indicated in black.
  • the components comprise the condensate water sump KW, the pump P, the filter container 1, the riser SL, a shut-off valve VE2 introduced between the first outlet 3 and the washing container SB and a sewer AW connected to a second outlet 4.
  • the sewer AW can lead eg back into the condensate water tank KW.
  • the shut-off valve VE2 is opened, so that the still unfiltered condensate water K is pumped by the pump P to the inlet 2 of the filter device 1, the filter device 1 passes through and is filtered and further from the first outlet 3 through the riser SL is pumped up into the washing container SB.
  • the second sequence 4 runs in the filter position little or no condensate K. This is achieved in that a flow resistance of the condensate K through the second drain 4 and the sewer AW is far higher than a flow resistance of the condensate K through the first flow. 3 and the riser SL.
  • the flow cross-section through the first outlet 3 and the riser SL designed so that a high volume flow and a low pressure of the condensate water K form, the pressure is not sufficient to promote the condensate water K through the second drain 4 and the sewer AW.
  • the current through the second drain 4 is thus not blocked by a valve or other barrier, so that there is a particularly maintenance-free and inexpensive solution.
  • the pump P is stopped.
  • FIG. 2B shows a second course of liquid through the in 2A shown components in a self-cleaning position.
  • the shut-off valve VE2 is closed and the pump P pumps the condensate water K displaced with the entrained fluff through the second outlet 4 and the sewer AW from the filter container 1 and further to a drain or back into the condensate water trough KW. Since the flow path formed by the second sequence 4 and the sewer AW valveless, this also does not need to be switched open.
  • the filter container 1 can be actuated automatically, for example, by means of a control unit, not shown here, and / or by a user interaction, e.g. for activating a self-cleaning function of the tumble dryer WG.
  • the structure and the mode of operation of the filter device will be explained below with reference to various embodiments.
  • the filter container 1, the pump P, the shut-off valve VE2, a shut-off valve, not shown, to the sewer AW and / or the riser SL can be regarded as parts of a filter device.
  • FIG. 3 Show it Figure 3 as a sectional view in side view, Figure 4 as a sectional view in an oblique view in a more detailed exploded view and Figure 5 as a sectional view in an oblique view as a composite device shown in more detail a filter container 1a according to a first embodiment, for example for use as the filter container 1 in Fig.1 to Fig. 2B ,
  • the filter container 1a has a chamber 5, into which in the orientation shown here, the inlet 2 opens from below.
  • a filter element 6 is arranged in the form of a lint filter, which divides the chamber 5 into a first chamber part 5a and a second chamber part 5b.
  • the second outlet 4 is partially formed as a nozzle 7, which extends from a chamber wall 8 of the chamber 5, starting through the second chamber part 5b to a central opening 9 in the filter element 6.
  • the filter element 6 and the nozzle 7 are sealed against each other, so that no parasitic currents can pass the filter element 6.
  • a housing 10 of the filter container 1a is constructed here of two housing parts 10a and 10b, wherein the filter element 6 is inserted between the two sections 10a and 10b.
  • a cross section of the first drain 3 is about 20 mm, while a minimum cross section of the second drain 4 is considerably lower, namely here about 7 mm about one third of it.
  • the filter element 6 can be inserted for the assembly of the filter container 1a in the lower housing part 10a and sealed with an O-ring 11 to the outside.
  • the upper housing part 10 b can then be placed with pressure on the lower housing part 10 a, whereby both the filter element 6 and the O-ring 11 between the two housing parts 10 a, 10 b are held.
  • a to the first flow 3 associated flow channel (eg, the riser SL) is open.
  • condensate water K runs from the inlet 2 to the first outlet 3, through the filter element 6.
  • Fluff or other suspended particles are retained in the condensate water K at the upstream side of the filter element 6, and the condensate K discharged through the first outlet 3 is cleaned of these lint, etc.
  • this filter container 1a can be adjusted through the processes 3 and 4 by a choice of the cross section of the first outlet 3 in comparison to the cross section of the second sequence 4, the corresponding volume flows.
  • the cross-section of the first outlet 3 can be selected to be comparatively large enough that a pressure in the chamber 5 when the first outlet 3 is open is so small that no substantial volume flow through the second inlet 4 results, although this is not obstructed.
  • the flow cross-section of the first outlet 3 may be at least twice as large, preferably at least three times as large as the flow cross-section of the second outlet 4.
  • a pumping up of the condensate water K is stopped by the inlet 2, for example by stopping the in Fig.1 to Fig.2B
  • pump P flows out in the second chamber part 5b, in the first outlet 3 and possibly in an adjoining flow channel (eg the riser SL) Fig.1 ) located condensate water K back through the filter element 6 and further through the inlet 2.
  • This backflow lifts the located on the inlet side, here: lower, side of the filter element 6 lint.
  • the first sequence 3 is shut off and it is the pumping resumed, z. B. by a reconnection of the pump P.
  • the particularly flocculent condensate K is now removed through the nozzle 7 and the second outlet 4 from the filter device 1 a, for example, in the sewer AW.
  • To return to the filter position of the flow channel is opened by the first sequence 3 again.
  • This filter container 1a has the advantage that it manages without moving parts and only by a suitable blocking and opening the process 3 provides both an effective filter performance and a simple self-cleaning option.
  • Figure 6 shows a filter container 1 b according to a second embodiment, which also as the filter device 1 in Fig.1 can be used.
  • the first outlet 3 now faces the inlet 2, while the second outlet 4 opens laterally into the first chamber section 5a.
  • This can be dispensed with an opening in the filter element 6 and a provision of a nozzle 7.
  • the housing 10 of the filter device 1b is designed in two parts, wherein the filter element 6 is secured between the two housing parts 10a and 10b.
  • the filter container or filter device e.g. a dishwasher
  • the impurities may then be, for example, leftovers.
  • the first sequence can be used to provide a useful liquid, which in particular can be a rinsing liquid.
  • a useful liquid which in particular can be a rinsing liquid.
  • a washing for example, can be dispensed with a washing.
  • the processes are not limited to a rectangular arrangement on the filter container, but may also lead to each other at different suitable angles in the chamber.
  • the flow cross sections can also be adjusted at the downstream of the processes 3 and 4 flow channels (eg the riser SL or the sewer AW), for example by reduction pieces.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Filtration Of Liquid (AREA)
EP10798073.2A 2009-12-22 2010-12-17 Filtervorrichtung, hausgerät und verfahren zum filtern Active EP2516720B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10798073T PL2516720T3 (pl) 2009-12-22 2010-12-17 Urządzenie filtracyjne, urządzenie domowe i sposób filtrowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009055208A DE102009055208A1 (de) 2009-12-22 2009-12-22 Filtervorrichtung, Hausgerät und Verfahren zum Filtern
PCT/EP2010/070080 WO2011076685A1 (de) 2009-12-22 2010-12-17 Filtervorrichtung, hausgerät und verfahren zum filtern

Publications (2)

Publication Number Publication Date
EP2516720A1 EP2516720A1 (de) 2012-10-31
EP2516720B1 true EP2516720B1 (de) 2014-11-19

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ID=43902798

Family Applications (1)

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EP10798073.2A Active EP2516720B1 (de) 2009-12-22 2010-12-17 Filtervorrichtung, hausgerät und verfahren zum filtern

Country Status (5)

Country Link
EP (1) EP2516720B1 (zh)
CN (1) CN102686793B (zh)
DE (1) DE102009055208A1 (zh)
PL (1) PL2516720T3 (zh)
WO (1) WO2011076685A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010042495A1 (de) * 2010-10-15 2012-04-19 BSH Bosch und Siemens Hausgeräte GmbH Reinigungsvorrichtung für ein mit Flusen beaufschlagtes Bauteil, Hausgerät zur Pflege von Wäschestücken mit einer derartigen Reinigungsvorrichtung sowie Verfahren zum Reinigen eines mit Flusen beaufschlagten Bauteils
FR3006334B1 (fr) * 2013-06-03 2015-05-15 Fagorbrandt Sas Appareil de sechage du linge comprenant un dispositif de maintien d'au moins un tuyau d'evacuation d'eau
DE102013217467A1 (de) * 2013-09-02 2015-03-05 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät mit Wegeventil
DE102014214343B4 (de) * 2014-07-23 2020-01-16 BSH Hausgeräte GmbH Haushaltsgerät
DE102017125881B4 (de) 2017-11-06 2019-06-19 Sartorius Stedim Biotech Gmbh Filtermodul und Verfahren zum Nachweis von Mirkoorganismen
EP3662936B1 (de) 2018-12-06 2023-12-06 MELAG Medizintechnik GmbH & Co. KG Reinigungs- und desinfektionsgerät mit einer filtereinrichtung
DE102019203809B3 (de) * 2019-03-20 2020-07-02 E.G.O. Elektro-Gerätebau GmbH Wasserführendes Haushaltsgerät und Verfahren zu seinem Betrieb

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0752231A1 (en) * 1995-07-06 1997-01-08 Merloni Elettrodomestici S.p.A. Dishwashing machine with improved filtering system, and filtering method thereof

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IT1239791B (it) * 1990-02-02 1993-11-15 Luigi Taje Filtro autopulente per macchine lavapiatti.
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DE4236931C3 (de) * 1991-11-13 2002-08-01 Miele & Cie Sammeltopf einer Geschirrspülmaschine mit einer Siebkombination
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DE10002743B4 (de) * 2000-01-22 2006-01-12 Whirlpool Corp., Benton Harbor Wärmepumpen-Wäschetrockner mit Reinigungseinrichtung für den Wärmetauscher
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DE102007016074A1 (de) 2007-04-03 2008-10-09 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Vorrichtung zum Reinigen eines Bauteiles, insbesondere eines Verdampfers einer Kondensatoreinrichtung sowie Wasch- oder Wäschetrockner mit einer solchen Vorrichtung
DE102007049061A1 (de) * 2007-10-12 2009-04-16 BSH Bosch und Siemens Hausgeräte GmbH Verfahren und Vorrichtung zum Reinigen eines Bauteiles, insbesondere eines Verdampfers einer Kondensatoreinrichtung sowie Wasch- oder Wäschetrockner mit einer solchen Vorrichtung
DE102007061036B4 (de) * 2007-12-18 2022-09-15 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem selbstreinigenden Filtersystem

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EP0752231A1 (en) * 1995-07-06 1997-01-08 Merloni Elettrodomestici S.p.A. Dishwashing machine with improved filtering system, and filtering method thereof

Also Published As

Publication number Publication date
DE102009055208A1 (de) 2011-06-30
EP2516720A1 (de) 2012-10-31
CN102686793B (zh) 2015-07-22
PL2516720T3 (pl) 2015-04-30
CN102686793A (zh) 2012-09-19
WO2011076685A1 (de) 2011-06-30

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