EP0548386A1 - Procédé et dispositif pour nettoyer l'air de sortie d'un sèche-linge à tambour - Google Patents

Procédé et dispositif pour nettoyer l'air de sortie d'un sèche-linge à tambour Download PDF

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Publication number
EP0548386A1
EP0548386A1 EP91121922A EP91121922A EP0548386A1 EP 0548386 A1 EP0548386 A1 EP 0548386A1 EP 91121922 A EP91121922 A EP 91121922A EP 91121922 A EP91121922 A EP 91121922A EP 0548386 A1 EP0548386 A1 EP 0548386A1
Authority
EP
European Patent Office
Prior art keywords
air
fluff
liquid
water
siphon
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
EP91121922A
Other languages
German (de)
English (en)
Other versions
EP0548386B1 (fr
Inventor
Jan Maurer
Werner Janecke
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.)
Zanker GmbH
Original Assignee
Zanker 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 Zanker GmbH filed Critical Zanker GmbH
Priority to DE9117222U priority Critical patent/DE9117222U1/de
Priority to DE59108640T priority patent/DE59108640D1/de
Priority to EP91121922A priority patent/EP0548386B1/fr
Priority to AT91121922T priority patent/ATE150812T1/de
Priority to ES91121922T priority patent/ES2099123T3/es
Publication of EP0548386A1 publication Critical patent/EP0548386A1/fr
Application granted granted Critical
Publication of EP0548386B1 publication Critical patent/EP0548386B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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 method and a device for cleaning the steam-laden air discharged from the laundry drum of a tumble dryer from fluff and / or the like, and to collecting and automatically removing the fluff.
  • the heated, dry air passed through the drum of a tumble dryer not only absorbs moisture but also fluff as it passes through the laundry to be dried.
  • fluff filter In order to prevent the lint from accumulating in unsuitable places in the device (housing, air duct, condenser, exhaust air or recirculation fan, heating device, etc.) and to contaminate it, it is known to pass the air stream emerging from the laundry drum of the tumble dryer through a lint filter to lead to where the lint accumulating during drying is collected.
  • the fluff filter must be cleaned regularly after each drying process. If this is forgotten, it can happen, depending on the type of laundry to be dried, that the fluff filter clogs up after a few drying processes, so that the strength of the air flow decreases and the air flow sometimes even comes to a complete standstill.
  • the invention is therefore based on the object of providing a method and a device of the type mentioned at the outset, by means of which the air emerging from the laundry drum of a tumble dryer is continuously cleaned of fluff, including the microfluid and / or the like, the collected Components are automatically collected and removed.
  • the air to be cleaned is brought into contact with a liquid with the lint contained therein and the lint is thereby transferred from the air to the liquid and that the lint is continuously removed with the liquid will.
  • the contact of the air with the liquid can be produced by sweeping over a large, moist surface which is provided with a small adhesion to the liquid, the surface advantageously being able to be oriented such that the liquid together with the fluff by gravity can be easily removed.
  • the moist surface can be formed by the walls of a condenser, which is installed, for example, in the door of a clothes dryer is so that fluff transferred to the condensate can flow off together with the condensate in a vertical direction and can be collected.
  • the air is brought into contact with the liquid by passing the air through the liquid.
  • the liquid can be water, in the case of a forced-air dryer, condensed water.
  • the fluff is transferred to the water and fed with the water to a collecting or collecting device, from which the fluff is continuously removed together with the water.
  • the fluff is removed from the vapor-laden air automatically, so to speak, and no special monitoring by the operator is required. It may also be the case that part of the water is conducted in a closed circuit, and the fluff which is deposited on the walls in the circuit is rinsed off.
  • the process according to the invention ensures that condensate is fed to the water circuit via the air discharged from the drum and via the condenser of a circulating air dryer and that condensate is removed in the same amount from the water circuit or that this water is used in the case of an exhaust air dryer is fed from the outside.
  • a device for cleaning the air emerging from the drum from fluff and / or the like is provided downstream of the drum of the tumble dryer, which is flushed with water such that the Fluff are absorbed by the water, and that a collecting device is provided downstream of the air cleaning device, from which the fluff and / or the like are continuously removed.
  • a device for cleaning the air emerging from the drum from fluff and / or the like is provided downstream of the drum of the tumble dryer, which is flushed with water such that the Fluff are absorbed by the water, and that a collecting device is provided downstream of the air cleaning device, from which the fluff and / or the like are continuously removed.
  • the air cleaning device can be formed, for example, by a condenser of the tumble dryer itself, in that the walls of the condenser are flown with the fluff by the steam-laden air discharged from the tumble dryer of the tumble dryer, so that the fluff with the condensed water collects on the walls and with the outflowing condensate to a collection facility.
  • the air cleaning device has a siphon, which is arranged in the condensation water circuit of the clothes dryer.
  • the steam-laden air which still contains fluff, is introduced at one leg of the siphon and is discharged at the other leg in the region of the connection for the condensed water.
  • the siphon has an overflow in the area of the condensation water level on the air-side leg, which is connected to a collecting or collecting device and via which the condensation water and lint are continuously removed.
  • both the air cleaning device having the siphon and the air cleaning device described above, formed by the condenser are used simultaneously, depending on the on-site requirements, it can be advantageous that the condenser between the washing drum and the Siphon having air cleaning device or is arranged behind the latter. From the condenser, the air passes through a fan that maintains the air circuit to the heating system, where it is heated to a predetermined temperature before it is returned to the drum.
  • the amount of water removed from the circuit should correspond to the amount of condensed water supplied by the air. This ensures that a large part of the fluff in the siphon can be drained off via the overflow and that the fluff which is entrained with the escaping air and settles on the wall of the siphon is rinsed off by the water of the condensed water circuit and also discharged via the overflow can be.
  • An intermediate vessel with a lint trap is advantageously located within the condensed water circuit.
  • This tundish is connected to the overflow so that the fluff-laden condensate enters the tundish.
  • the tundish is also connected to the water outlet of the condenser, so that condensed water on the one hand into the siphon via the steam-laden air and on the other hand introduced into the circuit via the condenser and discharged from the tundish into the sewage system or into the condensed water container. While the circulation of the condensed water is maintained by means of a conveying device, another conveying device serves to discharge the fluff-laden condensed water.
  • the intermediate vessel is expediently designed in two stages, the conveyor for pumping out the fluff-laden condensate being arranged in a first somewhat higher stage and the conveyor for maintaining the condensed water circuit in a second somewhat lower stage.
  • an intermediate wall can be provided between the two stages, which protrudes slightly above the bottom of the first stage, so that the fluff introduced into the first stage via the overflow can settle on the bottom of the first stage and from there via the conveyor can be pumped out.
  • the condensation water overflowing the intermediate wall is conducted by the second pump in the area of the air outlet into the siphon, at which point it is ensured that the walls of the siphon are rinsed with water in order to rinse off the fluff which may have accumulated there.
  • the first stage pump can be switched on as required.
  • the actuation time can be selected depending on the water level in the two stages by providing a float switch which switches on the feed pump of the first stage at a corresponding first water level and switches it off at a corresponding second water level.
  • a two-stage centrifugal pump can also be provided, one stage of which works in the first stage of the intermediate vessel and whose other stage works in the second stage of the tundish.
  • the air cleaning device can be arranged, for example, in the door of a condensation dryer or in the floor area.
  • the invention Due to the invention, a significantly more effective cleaning of the air from fluff and / or the like is possible than was previously possible with textile filters. Furthermore, the lint can be removed from the air circuit permanently and automatically, i. H. that the individual operating effort, as is necessary with today's fluff filter, is eliminated. Since the fluff is removed evenly from the air circuit during each drying process and is either continuously pumped into the sewage system or into the condensate container, so that it is automatically removed from the dryer with the condensed water when the container is emptied regularly, which results in a decrease in the performance of the dryer from clogging a lint trap no longer exist. This also eliminates the negative consequences that occur in connection with the clogging of a fluff filter, which can lead to the dryer failing.
  • FIG. 1 the air circuit 1 of a schematically illustrated forced air dryer is shown.
  • the steam-laden, moist air 2 which may contain textile fluff and / or the like, emerges from the laundry drum 3 of the tumble dryer and is fed into the upper connection of e.g. arranged in the door of the dryer arranged condenser 4.
  • the tube condenser 4 has, in a manner known per se, a block of spaced-apart, perpendicular tubes through which cold air 5 flows.
  • the warm, steam-laden air 2 which is essentially guided in cross flow to these tubes, is discharged at the lower end of the tube condenser and arrives as dry air via the heater 6, where it is heated to a predetermined temperature, to the drum 3 again maintain the fan 7.
  • the fluff in the warm, steam-laden air 2 settles together with the condensed water on the outside of the tubes of the tubular condenser and is rinsed out of the condensed water via the outlet 8 into the condensed water container 9 under the influence of gravity.
  • the condensed water is continuously drained off directly into the sewage system with the lint.
  • the air circuit 10 and the water circuit 12 of a circulating air dryer are shown schematically.
  • the dry air leaves the condenser 17 and flows through a heater 18, where it is heated to a predetermined temperature. After heating up, the dry, warm air returns to the laundry drum.
  • the air circuit is maintained by a fan 19.
  • the condensed water circuit 12 is used to clean the air in circulation which exits the drum 14 of the tumble dryer, loaded with lint.
  • a siphon 20 is arranged in the condensate water circuit 12, which has a leg 21 for supplying the lint-laden air 13 and a leg 22, in the upper region, at which the inlet of the water circuit 23 is located, an air outlet 24 is provided.
  • an overflow 26 In the area of the condensed water level 25 there is an overflow 26.
  • This overflow 26 is connected via a pipeline 27 to an intermediate vessel 28 which is of two stages and has a first upper stage 29 and a second lower stage 30.
  • stage 30 there is a circulation pump 32 which maintains the water circuit 12.
  • stage 29 there is a condensate container filling pump 33 with which the lint-laden condensate is fed via a line 34 is pumped out into the condensate container 35. It is of course also conceivable that this line 34 opens directly into the sewage system, which is indicated by dashed lines.
  • the condenser 17 is connected to the intermediate vessel 28 via a condensate drain 36.
  • a float switch 37 which switches the pump 33 on or off depending on a specific water level.
  • the device according to the invention works as follows.
  • the warm, steam-laden and fluff-enriched air 13 emerges from the drum 14 and is introduced into the leg 21 of the siphon 20 into the condensed water circuit 12. It overcomes the pressure of the liquid column 39 in the leg 21 of the siphon and enters the leg 22.
  • Most of the fluff 40 is washed out in the liquid column 49, but also entrained by air bubbles 42 rising upward.
  • the fluff accumulating on the wall of the siphon 20 in the leg 22 is denoted by 41.
  • the air bubbles rise up and exit at the air outlet 24, which is located in the area of the water circuit inlet 23.
  • the catching device is formed by the simple intermediate wall 31, since the water movement in the intermediate chamber has calmed down to such an extent that the fluff settles on the bottom of the chamber 29 and from the pump 33 with the condensed water can be pumped via line 34 into container 35.
  • the water cleaned from the fluff, which accumulates in the chamber 30, is conveyed back to the inlet 23 via the pump 32.
  • the system is dimensioned so that the amount of condensed water supplied to the water cycle corresponds to the amount of condensed water removed from the water cycle.
  • the supply takes place on the one hand in the area of the liquid column 39 of the siphon 20, but mainly via the line 36 of the condenser 17 into the chamber 29.
  • the discharge takes place from the chamber 29 by means of the float switch-controlled pump 33.
  • the air cleaning device comprising the siphon 20 is arranged between the drum 14 and the condenser 17, so that the air supplied to the condenser 17 is cleaned and fluff is hardly deposited on the outside of the tube walls can. Since this is a tube condenser, the tubes of which the cooling air flows are arranged essentially in a vertical direction, the condensed water precipitated from the warm, steam-laden air can flow along the outside of the tube in a vertical direction and rinse off the few fluff still present, so that they reach the intermediate container 28 via the line 36.
  • the condenser 17 ' is arranged between the washing drum 14 and the air cleaning device comprising the siphon 20 and in turn serves as an air cleaning device.
  • the line 44 of the condensed water circuit 12 has a branch 45 which is connected to the condenser 17 '.
  • the condenser 17 ' is connected to the intermediate vessel 28 via the outlet 36'. Lint still contained in the air 13 is precipitated in the siphon 20 and excreted into the intermediate vessel 28 via the line 40.
  • a section of a circulating air dryer with a tube condenser 4 with condensate collecting device 9 is shown schematically in vertical section.
  • cold air 5 is passed through the tubes of the tube condenser 4.
  • steam and lint-laden air 2 enters the tube condenser 4.
  • the moist air condenses on the outside of the tubes.
  • the condensate picks up the fluff 41 and reaches the condensation water collecting device 9 via the outlet 8.
  • Fig. 5 shows a schematic cross section through a siphon 20, which is preferably used for an exhaust air dryer.
  • the steam-laden air 13 enriched with fluff enters the siphon 20 from below and is passed through the water column 25 here.
  • the fluff 41 is transferred to the water.
  • the dried and cleaned air leaves the siphon 20 via the air outlet 24, which is located at the top of the siphon arrangement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
EP91121922A 1991-12-20 1991-12-20 Procédé et dispositif pour nettoyer l'air de sortie d'un sèche-linge à tambour Expired - Lifetime EP0548386B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE9117222U DE9117222U1 (de) 1991-12-20 1991-12-20 Vorrichtung zum Reinigen der aus der Wäschetrommel eines Wäschetrockners abgeführten Luft
DE59108640T DE59108640D1 (de) 1991-12-20 1991-12-20 Verfahren und Vorrichtung zum Reinigen der aus der Wäschetrommel eines Wäschetrockners abgeführten Luft
EP91121922A EP0548386B1 (fr) 1991-12-20 1991-12-20 Procédé et dispositif pour nettoyer l'air de sortie d'un sèche-linge à tambour
AT91121922T ATE150812T1 (de) 1991-12-20 1991-12-20 Verfahren und vorrichtung zum reinigen der aus der wäschetrommel eines wäschetrockners abgeführten luft
ES91121922T ES2099123T3 (es) 1991-12-20 1991-12-20 Procedimiento y dispositivo para la limpieza del aire evacuado del tambor de la ropa de una secadora de ropa.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91121922A EP0548386B1 (fr) 1991-12-20 1991-12-20 Procédé et dispositif pour nettoyer l'air de sortie d'un sèche-linge à tambour

Publications (2)

Publication Number Publication Date
EP0548386A1 true EP0548386A1 (fr) 1993-06-30
EP0548386B1 EP0548386B1 (fr) 1997-03-26

Family

ID=8207459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91121922A Expired - Lifetime EP0548386B1 (fr) 1991-12-20 1991-12-20 Procédé et dispositif pour nettoyer l'air de sortie d'un sèche-linge à tambour

Country Status (4)

Country Link
EP (1) EP0548386B1 (fr)
AT (1) ATE150812T1 (fr)
DE (2) DE9117222U1 (fr)
ES (1) ES2099123T3 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2143892A1 (es) * 1995-06-20 2000-05-16 Bosch Siemens Hausgeraete Lavadora o lavavajillas preparada para el secado.
EP1936022A1 (fr) * 2006-12-22 2008-06-25 Electrolux Home Products Corporation N.V. Sèche-linge
FR2914326A1 (fr) * 2007-03-27 2008-10-03 Brandt Ind Sas Machine a secher le linge a condensation comprenant une reserve interne pour alimenter un generateur de vapeur et procede associe
DE102007052835A1 (de) * 2007-11-06 2009-05-07 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
WO2012028458A1 (fr) * 2010-09-03 2012-03-08 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour nettoyer un conduit d'air dans un lave-linge séchant ainsi que lave-linge séchant approprié
US8984767B2 (en) 2009-03-13 2015-03-24 BSH Hausgeräte GmbH Laundry drying unit having a lint screen arranged within a process air circuit and a method for operating said laundry drying unit
US9347171B2 (en) 2007-10-12 2016-05-24 BSH Haugeräte GmbH Method and device for cleaning a component, particularly an evaporator of a condenser device, and washer/dryer or dryer having such a device
US9512554B2 (en) 2008-07-11 2016-12-06 BSH Hausgeräte GmbH Device for cleaning a component, in particular an evaporator of a condenser device
EP3138952A1 (fr) 2015-09-04 2017-03-08 Arçelik Anonim Sirketi Séchoir à linge
US10145056B2 (en) 2007-04-03 2018-12-04 BSH Hausgeräte GmbH Device for cleaning a component, particularly of a vaporizer of a condenser device and a washer or washer/dryer comprising such a device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006080B4 (de) 2006-02-09 2018-03-29 BSH Hausgeräte GmbH Reinigungsvorrichtung für ein Bauteil eines Haushaltswäschetrockners
DE102007027866A1 (de) * 2007-06-18 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner mit einer Wärmepumpe sowie Verfahren zu seinem Betrieb

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758461A (en) * 1950-04-13 1956-08-14 Avco Mfg Corp Washing machine
US2825148A (en) * 1955-06-09 1958-03-04 Einer C Olson Lint trap for laundry drier
US2843943A (en) * 1953-11-02 1958-07-22 Whirlpool Co Combined washer and drier
US2865620A (en) * 1957-02-04 1958-12-23 Edward F Woodland Lint trap for clothes dryers
US4115485A (en) * 1977-06-27 1978-09-19 Genessi Richard J Lint interceptor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758461A (en) * 1950-04-13 1956-08-14 Avco Mfg Corp Washing machine
US2843943A (en) * 1953-11-02 1958-07-22 Whirlpool Co Combined washer and drier
US2825148A (en) * 1955-06-09 1958-03-04 Einer C Olson Lint trap for laundry drier
US2865620A (en) * 1957-02-04 1958-12-23 Edward F Woodland Lint trap for clothes dryers
US4115485A (en) * 1977-06-27 1978-09-19 Genessi Richard J Lint interceptor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2143892A1 (es) * 1995-06-20 2000-05-16 Bosch Siemens Hausgeraete Lavadora o lavavajillas preparada para el secado.
EP1936022A1 (fr) * 2006-12-22 2008-06-25 Electrolux Home Products Corporation N.V. Sèche-linge
FR2914326A1 (fr) * 2007-03-27 2008-10-03 Brandt Ind Sas Machine a secher le linge a condensation comprenant une reserve interne pour alimenter un generateur de vapeur et procede associe
US10145056B2 (en) 2007-04-03 2018-12-04 BSH Hausgeräte GmbH Device for cleaning a component, particularly of a vaporizer of a condenser device and a washer or washer/dryer comprising such a device
US9347171B2 (en) 2007-10-12 2016-05-24 BSH Haugeräte GmbH Method and device for cleaning a component, particularly an evaporator of a condenser device, and washer/dryer or dryer having such a device
DE102007052835A1 (de) * 2007-11-06 2009-05-07 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
US9512554B2 (en) 2008-07-11 2016-12-06 BSH Hausgeräte GmbH Device for cleaning a component, in particular an evaporator of a condenser device
US8984767B2 (en) 2009-03-13 2015-03-24 BSH Hausgeräte GmbH Laundry drying unit having a lint screen arranged within a process air circuit and a method for operating said laundry drying unit
CN103237936B (zh) * 2010-09-03 2015-08-05 Bsh家用电器有限公司 用于清洁洗涤干燥机中的空气通道的方法以及适用所述方法的洗涤干燥机
EA024645B1 (ru) * 2010-09-03 2016-10-31 Бсх Хаусгерете Гмбх Стирально-сушильная машина и способ очистки воздушного канала в ней
CN103237936A (zh) * 2010-09-03 2013-08-07 Bsh博世和西门子家用电器有限公司 用于清洁洗涤干燥机中的空气通道的方法以及适用所述方法的洗涤干燥机
WO2012028458A1 (fr) * 2010-09-03 2012-03-08 BSH Bosch und Siemens Hausgeräte GmbH Procédé pour nettoyer un conduit d'air dans un lave-linge séchant ainsi que lave-linge séchant approprié
EP3138952A1 (fr) 2015-09-04 2017-03-08 Arçelik Anonim Sirketi Séchoir à linge

Also Published As

Publication number Publication date
ES2099123T3 (es) 1997-05-16
DE59108640D1 (de) 1997-04-30
DE9117222U1 (de) 1997-07-10
EP0548386B1 (fr) 1997-03-26
ATE150812T1 (de) 1997-04-15

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