EP0535348A1 - Drier or washing and drying machine with a condensing device - Google Patents

Drier or washing and drying machine with a condensing device Download PDF

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Publication number
EP0535348A1
EP0535348A1 EP92114109A EP92114109A EP0535348A1 EP 0535348 A1 EP0535348 A1 EP 0535348A1 EP 92114109 A EP92114109 A EP 92114109A EP 92114109 A EP92114109 A EP 92114109A EP 0535348 A1 EP0535348 A1 EP 0535348A1
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EP
European Patent Office
Prior art keywords
condensate
process air
washer
condensation device
lint
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.)
Withdrawn
Application number
EP92114109A
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German (de)
French (fr)
Inventor
Andreas Ewert
Wolfhard Jording
Andreas Kratzsch
Hans-Christoph Schröder
Wolfgang Hellhake
Gerd Vollhardt
Gerhard Rodefeld
Wilfried Hüttemann
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.)
Miele und Cie KG
Original Assignee
Miele und Cie KG
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 Miele und Cie KG filed Critical Miele und Cie KG
Publication of EP0535348A1 publication Critical patent/EP0535348A1/en
Withdrawn legal-status Critical Current

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    • 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
    • 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 laundry treatment machine such as a tumble dryer or washer dryer with a condensation device which has a condensate collecting container, to which a condensate pump is assigned.
  • a condensation device is already known from DE-OS 37 38 031, in which manual removal of the fluff is not necessary.
  • the condensation device is assigned a spray nozzle device directed towards the plates, which is used to rinse the inner surfaces of the condensation device with the condensate from the condensate collecting container during a time-limited program section and is thus intended to remove deposited lint.
  • the invention is therefore based on the problem of avoiding the deposition of lint in the condensation device, so that no measures for manual or automatic rinsing of lint from the condensation device are required.
  • An essential aim of the invention is to no longer have to clean the condensation device during the life of the dryer.
  • the process air scrubber connected upstream of the condensation device does not in the first place lead to lint deposits in the condensation device.
  • the fluff is removed from the process air stream by being wetted by the condensate and precipitating from the process air stream.
  • the condensation device therefore no longer has to be removable. Seals and fastening devices can thus also be designed to be less complex.
  • the resulting condensate is conveyed from the condensate collection tank via the existing condensate pump and a two-way valve or via a second pump into the process air washer.
  • the use of the condensate does not require fresh water to be used in the process air wash.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

The invention relates to a laundry-treatment machine, such as a laundry drier or washing drier, with a condensation device (2) having a condensate-collecting container (3) to which a condensate pump is assigned. In present-day laundry driers, two lint filters arranged in series are used. It is known that some of the fine lint nevertheless passes through the filters and settles in the condensation device. To prevent the deposit of lint in the condensation device (2) and nevertheless do without a manual or automatic flushing of lint out of the condensation device, the condensation device is preceded by a process-air washer (1) as a lint-separating part which can be subjected to the condensate (K) from the condensate-collecting container (3). <IMAGE>

Description

Die Erfindung betrifft eine Wäschebehandlungsmaschine wie Wäschetrockner oder Waschtrockner mit einer Kondensationseinrichtung, die einen Kondensatauffangbehälter aufweist, dem eine Kondensatpumpe zugeordnet ist.The invention relates to a laundry treatment machine such as a tumble dryer or washer dryer with a condensation device which has a condensate collecting container, to which a condensate pump is assigned.

In heutigen Wäschetrocknern sind zwei in Reihe angeordnete Flusensiebe eingesetzt. Es ist bekannt, daß trotzdem ein Teil der feinen Flusen durch die Siebe gelangt und sich in der Kondensationseinrichtung absetzt. Die Kondensationseinrichtung muß also gelegentlich von den im Prozeßluftstrom mitgeführten Flusen befreit werden. Die Kondensationseinrichtungen bzw. die Platten dieser Einrichtungen sind daher zum Reinigen herausnehmbar. Bei derartigen Kondensationseinrichtungen ist die Handhabung zum Zwecke der Reinigung unbequem.In today's tumble dryers, two lint filters are arranged in a row. It is known that some of the fine fluff nevertheless passes through the sieves and settles in the condensation device. The condensation device must therefore occasionally be freed from the lint carried in the process air stream. The condensation devices or the plates of these devices can therefore be removed for cleaning. With such condensation devices, handling for the purpose of cleaning is inconvenient.

Aus der DE-OS 37 38 031 ist bereits eine Kondensationseinrichtung bekannt, bei der auf das manuelle Entfernen der Flusen verzichtet werden kann. Der Kondensationseinrichtung ist eine auf die Platten gerichtete Sprühdüsenvorrichtung zugeordnet, die mit dem Kondensat aus dem Kondensatauffangbehälter während eines zeitlich begrenzten Programmabschnitts die Innenflächen der Kondensationseinrichtung bespült und somit abgelagerte Flusen entfernen soll.A condensation device is already known from DE-OS 37 38 031, in which manual removal of the fluff is not necessary. The condensation device is assigned a spray nozzle device directed towards the plates, which is used to rinse the inner surfaces of the condensation device with the condensate from the condensate collecting container during a time-limited program section and is thus intended to remove deposited lint.

Dabei kann es vorkommen, daß in Ecken der Kondensationseinrichtung trotzdem noch Flusenreste verbleiben, die durch den Kontakt mit dem Kondensat verklumpen, auf den Platten antrocknen und festkleben. Diese hartnäckigeren Flusenablagerungen sind durch Bespülen der Platten mit Kondensat nicht mehr zu entfernen.It can happen that lint residues still remain in corners of the condensation device, which clump together due to contact with the condensate, dry on the plates and stick. These more stubborn lint deposits can no longer be removed by flushing the plates with condensate.

Der Erfindung liegt daher das Problem zugrunde, die Ablagerung von Flusen in der Kondensationseinrichtung zu vermeiden, so daß keine Maßnahmen zum manuellen oder automatischen Abspülen von Flusen aus der Kondensationseinrichtung erforderlich sind. Ein wesentliches Ziel der Erfindung ist, die Kondensationseinrichtung während der Lebensdauer des Trockners nicht mehr reinigen zu müssen.The invention is therefore based on the problem of avoiding the deposition of lint in the condensation device, so that no measures for manual or automatic rinsing of lint from the condensation device are required. An essential aim of the invention is to no longer have to clean the condensation device during the life of the dryer.

Dieses Problem wird bei dem erfindungsgemäßen Gegenstand durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen ergeben sich aus den nachfolgenden Ansprüchen.This problem is solved in the subject matter of the invention by the characterizing features of claim 1. Advantageous refinements and developments result from the following claims.

Die mit der Erfindung erzielbaren Vorteile liegen insbesondere darin, daß es durch den der Kondensationseinrichtung vorgeschalteten Prozeßluftwäscher gar nicht erst zu Flusenablagerungen in der Kondensationseinrichtung kommen kann. Die Flusen werden aus dem Prozeßluftstrom dadurch ausgeschieden, daß sie vom Kondensat benetzt werden und aus dem Prozeßluftstrom ausfallen. Die Kondensationseinrichtung muß daher nicht mehr ausbaubar sein. Dichtungen und Befestigungseinrichtungen können dadurch auch weniger aufwendig gestaltet sein. Das anfallende Kondensat wird aus dem Kondensatsammelbehälter über die vorhandene Kondensatpumpe und ein Zwei-Wege-Ventil oder über eine zweite Pumpe in den Prozeßluftwäscher gefördert. Durch die Verwendung des anfallenden Kondensats ist kein Frischwassereinsatz im Prozeßluftwäsche erforderlich.The advantages which can be achieved with the invention are, in particular, that the process air scrubber connected upstream of the condensation device does not in the first place lead to lint deposits in the condensation device. The fluff is removed from the process air stream by being wetted by the condensate and precipitating from the process air stream. The condensation device therefore no longer has to be removable. Seals and fastening devices can thus also be designed to be less complex. The resulting condensate is conveyed from the condensate collection tank via the existing condensate pump and a two-way valve or via a second pump into the process air washer. The use of the condensate does not require fresh water to be used in the process air wash.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and will be described in more detail below.

Es zeigen:

Figur 1
schematisch die Anordnung des Prozeßluftwäschers,
Figur 2 bis 5
schematisch den Aufbau des Prozeßluftwäschers nach Variante I bis IV,
In der Figur 1 ist die Anordnung eines Prozeßluftwäschers (1) für die Kondensationseinrichtung (2) eines Wäschetrockners schematisch dargestellt. In der Zeichnung sind nur die für die Erfindung wesentlichen Elemente dargestellt. Weitere Elemente wie Trommel, Prozeßluftgebläse, Antriebsmotor, etc. sind nicht dargestellt.
Das während des Trockenvorganges anfallende Kondensat wird in einem Kondensatsammelbehälter (3) aufgefangen. In diesem Behälter können Reinigungsmaßnahmen (4) für das Kondensat wie z. B. Absetzbecken oder Siebe integriert sein. Für Reinigungszwecke ist der Kondensatsammelbehälter (3) oder Teile davon herausnehmbar. Der Kondensationseinrichtung (2) ist ein mit dem Kondensat aus dem Kondensatsammelbehälter (3) beaufschlagbarer Prozeßluftwäscher (1) als Flusenabscheiderteil vorgeschaltet. Eine vorhandene Kondensatpumpe (5) fördert das Kondensat über ein Zwei-Wege-Ventil (6) in den Prozeßluftwäscher (1) oder in einen Auffangbehälter bzw. zum Abfluß (7). Es ist auch möglich eine zweite Pumpe vorzusehen. In diesem Fall kann das Zwei-Wege-Ventil (6) entfallen. Eine nicht dargestellte Überwachungseinrichtung im Kondensatsammelbehälter (3) (Schwimmerschalter etc.) sorgt dafür, daß bei zu viel Wasser ein Teil des Kondensats aus dem System entfernt wird. Diese Überwachungsvorrichtung steuert das Zwei-Wege-Ventil (6) oder alternativ die zweite Pumpe an.
In den Figuren 2 bis 5 sind verschiedene Varianten für den Prozeßluftwäscher (1) dargestellt. In den Figuren ist der Prozeßluftstrom mit PL und das Kondensat mit K bezeichnet. In Figur 5 ist mit Ü ein Überlauf und mit A ein Ablauf gemeint.
Figur 2 zeigt Variante I bei der im Prozeßluftwäscher (1) schräg eingesetzte Leitwände (8) vorgesehen sind, die zur Bildung eines darauf ablaufenden Wasserfilms (9) von einer darüber angeordneten Wasserverteilrinne (10) mit Kondensat gespeist werden. Der Prozeßluftstrom wird durch die Zwischenräume der Leitwände (8) geführt. Die Leitwände (8) können leicht gewölbt, gerade oder winklig ausgebildet sein.
Figur 3 zeigt Variante II des Prozeßluftwäschers (1), bei der ein quer zur Prozeßluftrichtung angeordnetes grobmaschiges Gitter (11) vorgesehen ist. Das Kondensat, welches über eine Wasserverteilrinne (10) auf das Gitter (11) gebracht wird, läuft an dem Gitter ab, so daß die Prozeßluft eine Art Wasservorhang durchströmt.
Figur 4 zeigt Variante III, bei der im Prozeßluftwäscher (1) eine quer zur Prozeßluftrichtung oder leicht gegen den Prozeßluftstrom gerichtete Düse (12) vorgesehen ist, deren Sprühstrahl einen Wasservorhang bildet.
Figur 5 zeigt Variante IV, bei der der Prozeßluftwäscher (1) mindestens eine nach oben offene mit Kondensat beaufschlagbare Schale (13) aufweist, wobei der Prozeßluftstrom parallel zur Wasseroberfläche durch den Prozeßluftwäscher (1) geführt wird.Show it:
Figure 1
schematically the arrangement of the process air washer,
Figure 2 to 5
schematic of the structure of the process air washer according to variants I to IV,
In Figure 1, the arrangement of a process air washer (1) for the condensation device (2) of a clothes dryer is shown schematically. In the drawing only the elements essential to the invention are shown. Other elements such as drum, process air blower, drive motor, etc. are not shown.
The condensate that accumulates during the drying process is collected in a condensate collector (3). In this container cleaning measures (4) for the condensate such. B. settling tanks or sieves can be integrated. The condensate collector (3) or parts of it can be removed for cleaning purposes. The condensation device (2) can be acted upon with the condensate from the condensate collection container (3) Process air washer (1) upstream as a lint separator part. An existing condensate pump (5) conveys the condensate via a two-way valve (6) into the process air washer (1) or into a collecting tank or to the drain (7). It is also possible to provide a second pump. In this case, the two-way valve (6) can be omitted. A monitoring device (not shown) in the condensate collection container (3) (float switch etc.) ensures that part of the condensate is removed from the system if there is too much water. This monitoring device controls the two-way valve (6) or alternatively the second pump.
FIGS. 2 to 5 show different variants for the process air washer (1). In the figures, the process air flow is designated PL and the condensate K. In FIG. 5, Ü means an overflow and A means an outflow.
Figure 2 shows variant I in which in the process air washer (1) inclined guide walls (8) are provided, which are fed with condensate from a water distribution channel (10) arranged above to form a water film (9) running thereon. The process air flow is led through the spaces between the guide walls (8). The guide walls (8) can be slightly curved, straight or angled.
FIG. 3 shows variant II of the process air washer (1), in which a coarse-mesh grid (11) is provided which is arranged transversely to the process air direction. The condensate, which is brought to the grate (11) via a water distribution channel (10), runs off the grate, so that the process air flows through a kind of water curtain.
Figure 4 shows variant III, in which in the process air washer (1) a crosswise to the process air direction or slightly directed against the process air flow nozzle (12) is provided, the spray of which forms a water curtain.
FIG. 5 shows variant IV, in which the process air washer (1) has at least one tray (13) open to the top with condensate, the process air stream being guided parallel to the water surface through the process air washer (1).

Claims (5)

Wäschebehandlungsmaschine wie Wäschetrockner oder Waschtrockner mit einer Kondensationseinrichtung, die einen Kondensatauffangbehälter aufweist, dem eine Kondensatpumpe zugeordnet ist,
dadurch gekennzeichnet,
daß der Kondensationseinrichtung (2) ein mit dem Kondensat aus dem Kondensatauffangbehälter (3) beaufschlagbarer Prozeßluftwäscher (1) als Flusenabscheideteil vorgeschaltet ist.Laundry treatment machine such as a tumble dryer or washer dryer with a condensation device which has a condensate collecting container to which a condensate pump is assigned,
characterized,
that the condensation device (2) is preceded by a process air washer (1) which can be acted upon by the condensate from the condensate collector (3) as a lint separating part. Wäschebehandlungsmaschine wie Wäschetrockner oder Waschtrockner nach Anspruch 1,
dadurch gekennzeichnet,
daß der Prozeßluftwäscher (1) schräg eingesetzte Leitwände (8) aufweist, an denen das Kondensat in Form eines Wasserfilms (9) abläuft, wobei das Kondensat mittels einer Wasserverteilrinne (10) auf die Leitwände (8) verteilt wird und wobei der Zwischenraum zwischen den Leitwänden (8) von der Prozeßluft durchströmt wird.Laundry treatment machine such as a tumble dryer or washer dryer according to claim 1,
characterized,
that the process air washer (1) has diagonally inserted guide walls (8) on which the condensate runs in the form of a water film (9), the condensate being distributed to the guide walls (8) by means of a water distribution channel (10) and the space between the The process air flows through guide walls (8). Wäschebehandlungsmaschine wie Wäschetrockner oder Waschtrockner nach Anspruch 1,
dadurch gekennzeichnet,
daß der Prozeßluftwäscher (1) ein quer zur Prozeßluftrichtung angeordnetes grobmaschiges Gitter (11) aufweist, wobei das Kondensat mittels einer Wasserverteilrinne (10) an dem Gitter (11) abläuft.Laundry treatment machine such as a tumble dryer or washer dryer according to claim 1,
characterized,
that the process air washer (1) has a coarse-mesh grid (11) arranged transversely to the process air direction, the condensate running off the grid (11) by means of a water distribution channel (10). Wäschebehandlungsmaschine wie Wäschetrockner oder Waschtrockner nach Anspruch 1,
dadurch gekennzeichnet,
daß der Prozeßluftwäscher (1) mindestens eine quer zur Prozeßluftrichtung oder leicht gegen den Prozeßluftstrom gerichtete Düse (12) aufweist, deren Sprühstrahl einen Wasservorhang bildet.Laundry treatment machine such as a tumble dryer or washer dryer according to claim 1,
characterized,
that the process air washer (1) has at least one nozzle (12) directed transversely to the process air direction or slightly against the process air flow, the spray jet of which forms a water curtain. Wäschebehandlungsmaschine wie Wäschetrockner oder Waschtrockner nach Anspruch 1,
dadurch gekennzeichnet,
daß der Prozeßluftwäscher (1) mindestens eine nach oben offene mit Kondensat beaufschlagbare Schale (13) aufweist wobei der Prozeßluftstrom parallel zur Wasseroberfläche durch den Prozeßluftwäscher (1) geführt wird.Laundry treatment machine such as a tumble dryer or washer dryer according to claim 1,
characterized,
that the process air washer (1) has at least one tray (13) open to the top with condensate, the process air stream being guided parallel to the water surface through the process air washer (1).
EP92114109A 1991-09-28 1992-08-19 Drier or washing and drying machine with a condensing device Withdrawn EP0535348A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4132431A DE4132431A1 (en) 1991-09-28 1991-09-28 LAUNDRY TREATMENT MACHINE LIKE DRYING DRYER OR WASHING DRYER
DE4132431 1991-09-28

Publications (1)

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EP0535348A1 true EP0535348A1 (en) 1993-04-07

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DE (1) DE4132431A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005054563A1 (en) * 2003-12-05 2005-06-16 Arcelik Anonim Sirketi A washer/dryer with a condenser and a lint collection propeller
WO2008145518A1 (en) * 2007-05-25 2008-12-04 BSH Bosch und Siemens Hausgeräte GmbH Domestic appliance for treating items of laundry, in particular washer dryer
WO2008155263A1 (en) * 2007-06-18 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Condensation tumble dryer having a heat pump, and method for the operation thereof
CN101903585B (en) * 2007-12-18 2012-01-25 Bsh博世和西门子家用器具有限公司 Cleaning device for a component loaded with lint in a household appliance, and method for cleaning a component loaded with lint
WO2014009851A2 (en) 2012-07-11 2014-01-16 BSH Bosch und Siemens Hausgeräte GmbH Lint trap for a tumble drier
EP2691567A4 (en) * 2011-03-29 2015-08-05 Lg Electronics Inc Clothes treating apparatus having heat exchanger cleaning device
EP2591161B1 (en) * 2010-07-08 2017-05-03 LG Electronics Inc. Clothes dryer

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DE102009002389A1 (en) * 2009-04-15 2010-10-21 BSH Bosch und Siemens Hausgeräte GmbH Condensation dryer with a filter device and method for its operation
CN105229218B (en) * 2013-05-24 2019-04-05 伊莱克斯家用电器股份公司 Clothesdrier and method for running clothesdrier

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US2825148A (en) * 1955-06-09 1958-03-04 Einer C Olson Lint trap for laundry drier
DE1928548A1 (en) * 1969-05-30 1970-12-10 Zanussi A Spa Industrie Drying device, especially for washing machines
FR2132077A1 (en) * 1971-03-27 1972-11-17 Beges Ag
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DE3618920A1 (en) * 1986-06-05 1987-12-10 Bosch Siemens Hausgeraete Laundry drier
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FR2664625A1 (en) * 1990-07-10 1992-01-17 Ciapem Turbine laundry drier

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005054563A1 (en) * 2003-12-05 2005-06-16 Arcelik Anonim Sirketi A washer/dryer with a condenser and a lint collection propeller
WO2008145518A1 (en) * 2007-05-25 2008-12-04 BSH Bosch und Siemens Hausgeräte GmbH Domestic appliance for treating items of laundry, in particular washer dryer
WO2008155263A1 (en) * 2007-06-18 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Condensation tumble dryer having a heat pump, and method for the operation thereof
CN101903585B (en) * 2007-12-18 2012-01-25 Bsh博世和西门子家用器具有限公司 Cleaning device for a component loaded with lint in a household appliance, and method for cleaning a component loaded with lint
EP2591161B1 (en) * 2010-07-08 2017-05-03 LG Electronics Inc. Clothes dryer
US9752274B2 (en) 2010-07-08 2017-09-05 Lg Electronics Inc. Clothes dryer
EP2691567A4 (en) * 2011-03-29 2015-08-05 Lg Electronics Inc Clothes treating apparatus having heat exchanger cleaning device
AU2012237107B2 (en) * 2011-03-29 2015-09-17 Lg Electronics Inc. Laundry Machine
WO2014009851A2 (en) 2012-07-11 2014-01-16 BSH Bosch und Siemens Hausgeräte GmbH Lint trap for a tumble drier
WO2014009851A3 (en) * 2012-07-11 2014-07-03 BSH Bosch und Siemens Hausgeräte GmbH Lint trap for a tumble drier
RU2597582C2 (en) * 2012-07-11 2016-09-10 Бсх Хаусгерете Гмбх Trap of fibers for the drum dryer
US9580859B2 (en) 2012-07-11 2017-02-28 BSH Hausgeräte GmbH Lint retention for a laundry drying appliance

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