EP2227584B1 - Appareil de séchage de linge doté d'un canal d'air de traitement - Google Patents

Appareil de séchage de linge doté d'un canal d'air de traitement Download PDF

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Publication number
EP2227584B1
EP2227584B1 EP08865318A EP08865318A EP2227584B1 EP 2227584 B1 EP2227584 B1 EP 2227584B1 EP 08865318 A EP08865318 A EP 08865318A EP 08865318 A EP08865318 A EP 08865318A EP 2227584 B1 EP2227584 B1 EP 2227584B1
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EP
European Patent Office
Prior art keywords
process air
channel
water
water drain
laundry drying
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.)
Not-in-force
Application number
EP08865318A
Other languages
German (de)
English (en)
Other versions
EP2227584B2 (fr
EP2227584A1 (fr
Inventor
Edwin Bolduan
Dieter Schröder
Andreas Stolze
Yanhong Chen
Jie Gao
Wenfeng Pang
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
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Filing date
Publication date
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Priority claimed from DE102007061523A external-priority patent/DE102007061523A1/de
Priority claimed from CNU2008200310563U external-priority patent/CN201162144Y/zh
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2227584A1 publication Critical patent/EP2227584A1/fr
Publication of EP2227584B1 publication Critical patent/EP2227584B1/fr
Application granted granted Critical
Publication of EP2227584B2 publication Critical patent/EP2227584B2/fr
Not-in-force 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 
    • D06F58/24—Condensing arrangements

Definitions

  • the invention relates to a laundry drying apparatus having a process air duct which opens into a drum housing and is provided for guiding process air and for discharging condensate water from a condensation device into the drum housing.
  • the process air cycle of a clothes dryer is typically formed by process air blower, heating channel, laundry drum and condenser.
  • the condenser can be water or air cooled.
  • the air inlet into the laundry drum is usually located in the door area above a sight glass and the air outlet from the laundry drum is located in the drum housing, d. h., On a drum shell or a drum rear wall.
  • This air outlet simultaneously serves as condensate or cooling water entering the drum from the above-arranged condenser. From the drum, the water is periodically pumped out.
  • an air-water countercurrent with strong turbulences and a water accumulation caused by underpressure arises in the air outlet opening. Both cause flow resistance, which can hinder the flow of air so much that when regulating the drum inlet temperature not enough heating power for a fast energy-optimized drying process can be introduced.
  • a clothes drying machine including an air or water cooled washer dryer or a separate clothes dryer.
  • flow-optimized air paths for the process air should be provided.
  • the laundry drying apparatus is equipped with a process air duct which opens into a drum housing and is provided for guiding process air and for draining condensate water from a condenser (and possibly cooling water) into the drum housing.
  • the condenser is mounted above the process air duct or this section thereof, in which case the process air pipe serves as a downpipe to the drum housing.
  • From the process air pipe leads at least one water discharge channel.
  • the water discharge channel By means of the water discharge channel, a part of the guided water in the process air duct can be discharged before its mouth in the drum housing, so that less water over the length of the process air duct is available, which could hinder a process air flow.
  • a process air duct designed in this way is optimized for flow and thus consumption.
  • the water drainage channel is not limited to carrying only water, but may also be able to carry air, depending on the diameter and structural design.
  • the at least one water discharge channel discharges from a region of high water swirling, since here a water removal can bring about a particularly great reduction of the flow resistance.
  • the at least one water discharge channel is connected to a drain pump, in particular to the drain pump.
  • the at least one water discharge channel is connected to a downpipe to the drum housing without providing a special pump or represents such, especially if a water mask is interposed to prevent an air flow generated by the water discharge duct.
  • a water receiving area is provided at an orifice of the water discharge channel in the process air duct.
  • a periodically operated pump such as the drain pump, can pump off a large amount of water in a pumping gear.
  • the periodic operation of the drain pump is preferred to continuous operation.
  • the at least one water discharge channel with respect to a direction of a process air flow is arranged so that by means of the process air flow in the process air duct water is pressed into the water discharge channel.
  • a water drainage through the water drainage channel is increased and so effectively reduces a process air flow resistance.
  • the process air duct has an at least partially curved mouth portion which opens into the drum housing, wherein the at least one water discharge channel from the process air duct at the level of the mouth opening or lower goes off.
  • a center point of the outlet opening of the process air channel in the drum housing and a center of a discharge opening of a water discharge channel are offset in height from one another in the process air channel. Due to the height or height difference, the pressure of the process air can be adjusted to the running water.
  • a hole axis of the mouth opening of the process air channel into the drum housing and a hole axis of the discharge opening of a water discharge channel are offset in height from one another.
  • the at least one water discharge channel goes away from the curved pipe section of the process air pipe, since here strong water vortices typically form.
  • a diameter of the process air duct at least in the region of its mouth opening into the drum housing and a diameter of the water discharge channel in the region of its drain opening a ratio of about 2: 1 to 1: 1, or even more, to each other exhibit.
  • the water discharge channel is connected via a water mask with the drum housing.
  • a particularly preferred variant of the laundry drying device according to the invention is characterized in that the process air duct has a distributor which adjoins a cooler, the water drainage duct being connected to the distributor.
  • the cooler serves to condense out moisture from the flowing process air, and the manifold connecting the process air duct to the radiator under any necessary deflection of the process air and adjustment between mutually different flow cross sections while ensuring a largely uniform flow to the radiator. It makes sense to design the arrangement of manifold and radiator so that at least a portion of the condensate formed in the radiator flows counter to the manifold and thus the inflowing process air. In this case, the water discharge channel appears as a particularly effective means to collect the condensate reached in the manifold and remove controlled.
  • the distributor is arranged vertically below the cooler and has a sloping wall which closes it vertically downwards, whereby the water discharge channel in the wall opens into the distributor.
  • FIG. 1 shows components of a laundry drying apparatus in the form of a washing machine, which is in the state after a wash and before a drying cycle.
  • the automatic washing machine has a drum housing 1, in which a laundry drum 2 for receiving laundry 3 is rotatably mounted.
  • a fresh water supply line 4 which opens into a dispenser 5
  • water is supplied with or without detergent additive to the drum housing 1 and forms there the free fleet 6.
  • the auficarmbare a heater 7 free fleet 6 can by means of a drain pump 8 through a drain channel 9 to the outside be drained.
  • a circulating air or process air duct 10 for the process air is connected to the tub 1.
  • the upper part 11 of the process air duct 10 is connected to the pressure side of a process air blower 12 and opens at its other end in the drum housing 1 above the filling opening (not shown here) of the laundry drum 2.
  • the lower part 13 of the process air duct 10 is to the suction side of the process air blower 12 connected and opens in a lower portion in the drum housing 1. This orifice 14 is still above the level that is ever reached by the liquor during washing or rinsing.
  • a heating element not shown here, is typically arranged for heating the process air.
  • a condensation device 15 is further attached, which has a cooler 16 substantially.
  • the cooler is cooled by fresh air, which is sucked from the environment of the washer-dryer by a cooling air blower 17 and fed to the radiator 16 via the cooling air inflow duct 18 becomes.
  • the cooling air is conducted via a cooling air outflow channel 19 to an exhaust air outlet 20.
  • the downpipe 21 is designed here as part of the process air duct 10.
  • the free liquor 6 is pumped out.
  • the only required for washing the laundry 3 elements such as fresh water supply line 4 and 5 Ein réelleschale, not available.
  • FIG. 2 shows the arranged below the condenser 15 section 21 of the process air duct in the form of a process air tube 10 in the region of a junction 14 in the drum housing 1, as in FIG. 1 indicated by the dashed area. More precisely, the process air pipe 21 merges vertically from above into a curved section 22, which is adjoined by a horizontal, rectilinear end section 23, at the end of which the process air pipe 21 opens at a mouth opening 14 into a side wall of the drum housing 1.
  • At least the guided into the process air pipe 21 part of the water drainage channel 24 is here arranged in a straight line and horizontally ,
  • a horizontal hole axis L1 of the mouth opening 14 of the process air pipe 21 (which here corresponds to the longitudinal axis of the horizontal process air pipe section 23) and a likewise horizontally oriented hole axis L2 of the discharge opening 25 of the water discharge channel 24 (corresponding here to the longitudinal axis of the horizontal water discharge channel section) are parallel to each other, but offset in height so that the hole axis L2 of the water discharge channel is lower than that of the process air tube 21.
  • the associated diameter of the horizontal portion 23 of the process air pipe 21 is greater than the corresponding diameter of the water discharge channel 24, namely about twice greater.
  • the channel section diameter or the diameter of the discharge opening 25 is at least 10 mm.
  • the water discharge channel 24 is connected to the drum housing 1 as a water drain without special pumps (i.e., here via a downpipe) following.
  • the water drainage channel 24 is positioned in the direction of air flow (thick arrows) as shown, so that the condensate or cooling water is pushed through the process air flow towards the drain opening 24, resulting in significant (though not complete) water drainage thereabove , As a result, the water vortices, which are indicated by spirals, reduced, and thus a flow resistance for the process air.
  • the further outflow to the drum housing is equipped with a water mask (not shown).
  • Such a drying device with the waterways optimized by the second outflow channel is optimized for flow and thus consumption.
  • FIG. 3 shows a sectional view in cross-sectional view of a process air tube 26 according to a second embodiment in the region of a junction 14 in a drum housing;
  • FIG. 4 the process air tube 26 as a sectional view in front view.
  • the water drainage channels 27, 28 continue to descend on a plane (height) of the mouth opening 14, here in a region of strong to strong water vortices.
  • FIG. 4 can be seen, the water discharge channels 27, 28 laterally symmetrical offset to the mouth opening 14. As a result, water is no longer pressed directly into the water drainage channels 27, 28.
  • the flow resistance in this region of the process air tube 26 is reduced by periodically pumping off the condensate or the cooling water.
  • the pumping is done by means of the drain pump.
  • Optimal pumping can be achieved structurally by formed in the vortex region pockets 29, 30 for storing the water.
  • the pumping stroke should be adjusted to achieve a reduction in process air flow resistance, but maintain a desired lint filtering effect through the water vortex. In the water-cooled case, too frequent pumping should not result in a reduction in the cooling effect of the water.
  • FIG. 3 and FIG. 4 shown embodiment, in which targeted cooling water or condensate is pumped out of the air outlet region of the process air pipe 26 is flow and thus optimized consumption value.
  • an effective diameter of the horizontal process air pipe section and an effective diameter of the horizontal duct section diameter may also have other ratios, e.g. B. less than 2: 1, namely z. Of at least equal size (i.e., 1: 1 or 1: 1 + x, for example), or greater than 2: 1 ratio.
  • B. less than 2: 1, namely z.
  • at least equal size i.e., 1: 1 or 1: 1 + x, for example
  • the water drainage channel can also be considered as another process air duct for draining condensate water.
  • the Wasseralbtechnischskanal or its mouth opening need not go off on a plane (height) of the mouth opening 14, but may in particular be lower than the mouth opening 14.
  • the drain pump of the water drainage channel does not need to match the drain pump, but may also be a separately controllable pump. There may be more than two water-diverting channels. It is also possible, for example, to use drying devices based on the heat pump principle or water-cooled drying devices.
  • FIG. 5 shows a in the process air duct 13 (see also FIG. 1 ) arranged cooler 16 for cooling by flowing process air.
  • the process air flows to the cooler 16 through a manifold 31, the water discharge passage 24 is connected to the manifold 31.
  • the manifold 31 is arranged vertically below the radiator 16 and has a vertically downwards final, inclined wall 34, wherein the water discharge channel 24 opens into the wall 34 in the manifold 31.
  • the cooler 16 serves to condense moisture from the flowing process air, and the manifold 31 connecting the process air duct 13 to the radiator 16 under any necessary deflection of the process air and adjustment between different flow cross sections, ensuring a largely uniform flow of the radiator 16.
  • the distributor 31 is connected via a connecting piece 33, in the simplest case a seal 33, to the cooler 16, which in the present case is an air-cooled cooler 16, connected.
  • the water discharge channel 24 absorbs such condensate safely and performs it controlled.

Abstract

L'invention concerne un appareil de séchage de linge qui présente un canal (10, 21; 26) d'air de traitement qui débouche dans un caisson de tambour (1) et qui est prévu pour amener l'air de traitement et évacuer l'eau de condensation d'un dispositif de condensation (15) prévu dans le caisson de tambour (1). Au moins un canal (24; 27, 28) d'évacuation d'eau dérive du canal (10, 21; 26) d'air de traitement. L'appareil de séchage de linge est en particulier un sèche-linge.

Claims (14)

  1. Appareil pour le séchage du linge avec un canal d'air de processus (10, 21 ; 26) s'ouvrant dans un boitier de tambour (1), prévu pour transporter de l'air de processus du boitier de tambour (1) vers un dispositif de condensation (15) et pour l'écoulement d'eau de condensat du dispositif de condensation (15) dans le boitier de tambour (1), caractérisé en ce que au moins un canal de dérivation d'eau (24 ; 27, 28) part du canal d'air de processus (10, 21 ; 26), lequel débouche séparément du canal d'air de processus (10, 21 ; 26) dans le boitier de tambour (1).
  2. Appareil pour le séchage du linge selon l'une des revendications précédentes, caractérisé en ce qu'au moins deux canaux de dérivation d'eau (27, 28) partent du canal d'air de processus (26).
  3. Appareil pour le séchage du linge selon la revendication 2, caractérisé en ce que les canaux de dérivation d'eau (27, 28) s'écoulent en décalage latéral par rapport au canal d'air de processus (26).
  4. Appareil pour le séchage du linge selon l'une des revendications précédentes, caractérisé en ce que l'au moins un canal de dérivation d'eau (27, 28) est raccordé à une pompe de vidange (8).
  5. Appareil pour le séchage du linge selon l'une des revendications 1 à 3, caractérisé en ce que l'au moins un canal de dérivation d'eau (24) est raccordé sans pompe à une conduite de descente vers le boitier de tambour (1).
  6. Appareil pour le séchage du linge selon l'une des revendications précédentes, caractérisé en ce que l'au moins un canal de dérivation d'eau (24) est disposé de telle sorte quant à une direction du flux d'air de processus que le flux d'air de processus pousse l'eau qui se trouve dans le canal d'air de processus (21) dans le canal de dérivation d'eau (24).
  7. Appareil pour le séchage du linge selon l'une des revendications précédentes, caractérisé en ce que le canal d'air de processus (21 ; 26) présente une section d'embouchure (22, 23) au moins partiellement courbée qui débouche dans le boitier de tambour (1), dans lequel l'au moins un canal de dérivation d'eau (24 ; 27, 28) du canal d'air de processus (21 ; 26) s'étend à hauteur de l'orifice d'embouchure(14) ou plus bas.
  8. Appareil pour le séchage du linge selon l'une des revendications précédentes, caractérisé en ce qu'un point central de l'orifice d'embouchure (14) du tuyau d'air de processus (21) dans le boitier de tambour (1) et un point central d'un orifice d'écoulement (25) d'un canal de dérivation d'eau (24) dans le tuyau d'air de processus (21) sont déplacés en hauteur l'un par rapport à l'autre.
  9. Appareil pour le séchage du linge selon la revendication 8, caractérisé en ce qu'un axe perforé (L 1) de l'orifice d'embouchure (14) du tuyau d'air de processus (21) dans le boitier de tambour (1) et un axe perforé (L 2) de l'orifice d'écoulement (25) d'un canal de dérivation d'eau (24) sont déplacés en hauteur l'un par rapport à l'autre.
  10. Appareil pour le séchage du linge selon l'une des revendications précédentes, caractérisé en ce que l'au moins un canal de dérivation d'eau (24 ; 27, 28) part de la section de tuyau courbée (22) du tuyau d'air de processus (21 ; 26).
  11. Appareil pour le séchage du linge selon l'une des revendications précédentes, caractérisé en ce qu'un diamètre du tuyau d'air de processus (21 ; 26) au moins au niveau de son orifice d'embouchure (14) dans le boitier de tambour (1) et un diamètre du canal de dérivation d'eau (24 ; 27, 28) au niveau de son orifice d'écoulement (25) présentent un rapport approximatif de 2/1 à environ 1/1.
  12. Appareil pour le séchage du linge selon l'une des revendications précédentes, caractérisé en ce que le canal de dérivation d'eau (24) est relié au boitier de tambour (1) via une soupape hydraulique.
  13. Appareil pour le séchage du linge selon l'une des revendications précédentes, caractérisé en ce que le canal d'air de processus (21) présente un répartiteur (31) adjoint à un radiateur (16), dans lequel le canal de dérivation d'eau (24 ; 27, 28) est raccordé au répartiteur (31).
  14. Appareil pour le séchage du linge selon la revendication 13, caractérisé en ce que le répartiteur (31) est disposé à la verticale sous le radiateur (16) et présente une paroi inclinée qui le termine verticalement vers le bas (34), dans lequel le canal de dérivation d'eau (24 ; 27, 28) dans la paroi (34) débouche dans le répartiteur (31).
EP08865318.3A 2007-12-20 2008-12-15 Appareil de séchage Not-in-force EP2227584B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007061523A DE102007061523A1 (de) 2007-12-20 2007-12-20 Wäschetrocknungsgerät und Verfahren zum Betreiben desselben
CNU2008200310563U CN201162144Y (zh) 2008-01-24 2008-01-24 进风管以及使用该进风管的洗涤设备
PCT/EP2008/067501 WO2009080577A1 (fr) 2007-12-20 2008-12-15 Appareil de séchage de linge doté d'un canal d'air de traitement

Publications (3)

Publication Number Publication Date
EP2227584A1 EP2227584A1 (fr) 2010-09-15
EP2227584B1 true EP2227584B1 (fr) 2012-05-30
EP2227584B2 EP2227584B2 (fr) 2015-01-14

Family

ID=40532621

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08865318.3A Not-in-force EP2227584B2 (fr) 2007-12-20 2008-12-15 Appareil de séchage

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EP (1) EP2227584B2 (fr)
WO (1) WO2009080577A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012105906A1 (de) * 2012-07-03 2014-01-09 Miele & Cie. Kg Geschirrspülmaschine und Verfahren zum Betreiben einer Geschirrspülmaschine
DE102012105904A1 (de) * 2012-07-03 2014-01-09 Miele & Cie. Kg Geschirrspülmaschine und Verfahren zum Aufheizen von Spülflotte in einer Geschirrspülmaschine
EP2898132B1 (fr) 2012-09-24 2018-01-31 Arçelik Anonim Sirketi Machine à laver et à sécher le linge comprenant un condenseur

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1610124A1 (de) † 1967-02-16 1970-10-29 Siemens Elektrogeraete Gmbh Einrichtung zum Trocknen von Waesche mit einem die Trocknungsluft absaugenden Geblaese
IT953257B (it) * 1972-03-10 1973-08-10 Zucchini G Condensatore in particolare per la condensazione di flussi gassosi sa turi in uscita dalla botte di lavag gio di impianti per il lavaggio a secco
GB8507722D0 (en) † 1985-03-25 1985-05-01 Hotpoint Ltd Washing machines
DE4325209A1 (de) * 1993-07-27 1995-02-02 Bosch Siemens Hausgeraete Zum Trocknen eingerichtete Waschmaschine
DE19522307C2 (de) † 1995-06-20 2000-06-08 Bsh Bosch Siemens Hausgeraete Zum Trocknen eingerichtete Wasch- oder Geschirrspülmaschine
IT1284443B1 (it) † 1996-06-26 1998-05-21 Candy Spa Macchina lavatrice di tipo domestico con circuito chiuso di asciugatura, condensazione ad aria del vapore e filtro autopulente
DE10002742C1 (de) * 2000-01-22 2001-06-28 Whirlpool Co Wärmepumpen-Wäschetrockner
JP2003135881A (ja) * 2001-11-01 2003-05-13 Hitachi Ltd 洗濯乾燥機および水冷式熱交換器
EP1524361B1 (fr) † 2003-10-18 2006-10-04 Lg Electronics Inc. Dispositif de condensation pour machine à laver et à sécher
EP1657341A3 (fr) † 2004-11-12 2006-08-23 LG Electronics Inc. Procédé et dispositif de commande d'un processus de séchage dans une machine à laver et à sécher
DE102006021828A1 (de) * 2006-05-10 2007-11-15 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner mit einer Prozessluftspirale, und Verfahren zum Trocknen in einem solchen Kondensationstrockner

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Publication number Publication date
EP2227584B2 (fr) 2015-01-14
WO2009080577A1 (fr) 2009-07-02
EP2227584A1 (fr) 2010-09-15

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