EP2024552B1 - Séchoir à condensation comprenant une spirale à air de procédé et procédé pour sécher dans un tel séchoir à condensation - Google Patents

Séchoir à condensation comprenant une spirale à air de procédé et procédé pour sécher dans un tel séchoir à condensation Download PDF

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Publication number
EP2024552B1
EP2024552B1 EP07727968A EP07727968A EP2024552B1 EP 2024552 B1 EP2024552 B1 EP 2024552B1 EP 07727968 A EP07727968 A EP 07727968A EP 07727968 A EP07727968 A EP 07727968A EP 2024552 B1 EP2024552 B1 EP 2024552B1
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EP
European Patent Office
Prior art keywords
process air
fan
collecting vessel
water
drying chamber
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
EP07727968A
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German (de)
English (en)
Other versions
EP2024552A1 (fr
Inventor
Oliver Despang
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
Publication of EP2024552A1 publication Critical patent/EP2024552A1/fr
Application granted granted Critical
Publication of EP2024552B1 publication Critical patent/EP2024552B1/fr
Not-in-force 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 
    • 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 condensation dryer having a drying chamber and a process air circuit for circulating process air through the drying chamber, the process air circuit from the drying chamber first to a condenser for cooling the process air, separating water from the process air and collecting the water in a first receiver, thereafter to a first fan for driving the process air, then to a heater for heating the process air and then back to the drying chamber, and wherein the first fan has a rotor and a stator formed as a process air spiral.
  • the invention relates to a method for drying laundry in such a condensation dryer.
  • condensation dryer in which a fan has blades over which forms a pressure gradient during operation.
  • the fan is positioned to deliver moisture-saturated air so that further condensation of moisture occurs in the areas on the vanes where the pressure is relatively low.
  • the resulting in the housing of the blower condensate can be fed through a corresponding outlet to a condensate collector.
  • a condensation dryer In a condensation dryer (condensation dryer) work generally a closed hot air circuit (process air circuit) and an open cooling air flow.
  • process air circuit process air circuit
  • the laundry to be dried In the hot air circulation, the laundry to be dried is heated by means of flowing process air, the water being absorbed and transported to a heat exchanger (condenser). There, the water contained in the process air condenses due to cooling with the cooling air and is separated from the process air and collected in a condensate tank.
  • the dehumidified process air is reheated by a heating unit and then passed through the laundry to be dried again.
  • a condensation dryer In a condensation dryer is located in the In general, a process air blower, in the lower part of which the water removed from the wet laundry accumulates. This is especially true when the condensation dryer is at a standstill.
  • the lower part of the process air blower by design, is generally lower than the condensate tank used to catch the water from the process air used to dry the wet
  • a blower in a spiral housing, in particular for use in a condensation dryer is apparent from the EP 1 046 822 B1 , of the EP 0 702 105 B1 or the U.S. Patent 5,915,922 , A condenser for a condenser dryer is described in U.S. Patent No. 5,376,866 EP 1 050 618 B1 ,
  • the object of the invention is therefore to provide a condensation dryer and a method in which the water accumulating in the process air blower can be removed and, in particular, transferred to a condensate container for disposal by an operator.
  • the condensation dryer according to the invention with a drying chamber and a process air circuit for circulating process air through the drying chamber, wherein the process air circuit from the drying chamber first to a condenser for cooling the process air, separating water from the process air and collecting the water in a first collecting vessel, then to a first blower for driving the process air, then to a heater for heating the process air and then back to the drying chamber, and wherein the first blower has a rotor and a stator formed as a process air spiral, characterized in that between the process air spiral and the first collecting vessel a guide arrangement is formed, through which water from the fan can be transported by means of an adjusting between the condenser and the fan pressure difference in the first collecting vessel.
  • the inventive method for drying laundry with such a condensation dryer is characterized by water, which collects in the process air spiral, formed by the between the process air coil and the first collecting vessel guide assembly by means of an adjusting between the condenser and the fan pressure difference in the first Collecting vessel is transported.
  • a condensation dryer in which the guide arrangement has an opening in the process air spiral, a second one communicating with the fan via the latter Collecting vessel, in which water from the process air spiral can drip, and a communicating with the second receptacle and the first receptacle pipe socket comprises.
  • water that enters the process air spiral drip easily into the second receptacle, so that the process air coil can be kept largely dry.
  • the second receptacle is brought through a pipe socket in the necessary communication with the first receptacle, so that a structurally possibly required height difference between the process air coil and the condenser or communicating with this first receptacle can be bridged, taking advantage of a pressure difference between suction and Pressure side of the blower.
  • a condensation dryer is preferred in which the opening is located at the vertically lowest point of the process air spiral.
  • the condensation dryer according to the invention may be a dryer with or without a heat pump cycle.
  • condensation dryer in which the first blower is a centrifugal blower.
  • a particularly preferred condensation dryer is characterized in that the first collecting vessel communicates with a condensate container above it for collecting the water.
  • a condensate container In such a condensate container, collected condensate including the water carried from the process air coil can be easily provided for disposal by an operator.
  • a likewise particularly preferred condensation dryer has an open or closed cooling air duct, through which the condenser can be supplied by means of a second blower cooling air from an environment of the condensation dryer and led out after cooling the process air from the condensation dryer.
  • At standstill of the condensation dryer i. at standstill of the stator or fan wheel in the first fan, prevails in the lower region or at the lowest point of the process air coil atmospheric pressure.
  • the fan in the fan in the flow direction of the process air in front of the blower (fan wheel) is a negative pressure, while behind there is an overpressure.
  • the invention has numerous advantages. So there is no condensate in the process air spiral.
  • the condensate water does not collect in the process air spiral, but is collected centrally, and can be easily and regularly disposed of.
  • the condensation dryer 1 has a drying chamber 2, in which the material to be dried, generally laundry, is filled.
  • the drying chamber 2 can be driven by a motor, not shown.
  • a first blower 7 By means of a first blower 7, the drying chamber 2 is supplied with the process air heated by means of a heater 13 in the direction of the arrow.
  • the air fed to the condensation dryer 1 is conducted in a closed process air circuit 3, 4, 5.
  • the process air enriched with moisture flows into the condenser 10, where the moisture is condensed in the condenser 10 as a function of the cooling and collected in a first collecting vessel 11.
  • the process air dried in this way is then passed through the first fan 7 through a heater 13 and heated. Subsequently, the heated process air is fed back into the drying chamber 2, whereby the cycle of the process air is closed.
  • the first collecting vessel 11 is located in the vicinity of the condenser 10 and thus at a location that is quite low and difficult to access for a non-expert operator. In order to make the disposal of condensed water possible for such an operator, the water from the first receptacle 11 is pumped into a more accessible condensate tank 14; a designated pump is not shown for clarity.
  • the condensate tank 14 can be easily emptied after each use of the condensation dryer 1.
  • the location of the process air coil 20 is shown in the schematic drawing of FIG. 1 only hinted.
  • a second collecting vessel 12 which is connected via a pipe socket 19 with the overlying first collecting vessel 11.
  • the first blower 7 and the second blower 8 which conveys cooling air for the condenser 10 are driven by a common motor located in a drive unit 6.
  • the drive of the two fans 7 and 8 can also be done separately.
  • the process air circuit 3, 4, 5 need not necessarily be closed; if necessary, it is possible to change between an open and a closed process air circuit 3, 4, 5 by means of a suitable system of flaps or the like. In FIG. 1 the process air cycle is closed for the sake of simplicity.
  • the condensation dryer 1 according to FIG. 1 has an open cooling air channel 9, in which a cooling air flow from the cooling air inlet 15 is conveyed to the cooling air outlet 16. According to the invention, however, a closed cooling air flow circuit is possible, or the condenser 10 and the heater 13 may be components of a heat pump.
  • FIG. 2 shows the area in the condensation dryer in which the process air coil 20 is located (in section 4 of the process air cycle).
  • the process air entering in the arrow direction in section 4 of the process air cycle is conveyed by means of a first blower 7, 20 with rotor or fan wheel 7 and stator or process air coil 20 into the section 5 of the process air cycle (see arrow direction).
  • a first blower 7, 20 with rotor or fan wheel 7 and stator or process air coil 20 into the section 5 of the process air cycle (see arrow direction).
  • stator or process air coil 20 In the lower part of the process air coil 20 there is an opening 17, through which water can enter a second collecting vessel 12.
  • the opening 17, the second collecting vessel 12 and the pipe socket 19 thus form an example of a guide arrangement, with which water from the process air coil 20 can be sucked into the first collecting vessel 11 and disposed of together with the separated from the process air in the condenser 20 water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)

Claims (8)

  1. Séchoir à condensation (1) comprenant une chambre de séchage (2) et un circuit d'air de procédé (3, 4, 5) pour la circulation d'air de procédé à travers la chambre de séchage (2), le circuit d'air de procédé (3, 4, 5) conduisant de la chambre de séchage (2) d'abord vers un condenseur (10) destiné à refroidir l'air de procédé, à séparer l'eau de l'air de procédé et à collecter l'eau dans un premier récipient collecteur (11), ensuite vers un premier ventilateur (7, 20) destiné à entraîner l'air de procédé, ensuite vers un chauffage (13) destiné à chauffer l'air de procédé et ensuite de nouveau vers la chambre de séchage (2), et le premier ventilateur (7, 20) présentant un rotor (7) et un stator (20) réalisé en tant que spirale d'air de procédé (20),
    caractérisé en ce qu'un agencement de guidage (12, 17, 19) est formé entre la spirale d'air de procédé (20) et le premier récipient collecteur, au moyen duquel agencement de guidage l'eau provenant du ventilateur (7, 20) peut être transportée dans le premier récipient collecteur (11) au moyen d'une différence de pression se réglant entre le condenseur (20) et le ventilateur (7, 20).
  2. Séchoir à condensation (1) selon la revendication 1, dans lequel l'agencement de guidage (12, 17, 19) comprend une ouverture (17) dans la spirale d'air de procédé (20), un second récipient collecteur (12) communiquant avec le ventilateur (7, 20) par l'intermédiaire de cette spirale, dans lequel second récipient collecteur l'eau provenant de la spirale d'air de procédé peut goutter, et un embout (19) communiquant avec le second récipient collecteur (12) et le premier récipient collecteur (11).
  3. Séchoir à condensation (1) selon la revendication 2, dans lequel l'ouverture (17) se trouve à un endroit verticalement le plus bas de la spirale d'air de procédé (20).
  4. Séchoir à condensation (1) selon l'une quelconque des revendications précédentes, dans lequel le premier ventilateur (7, 20) est un ventilateur centrifuge (7, 20).
  5. Séchoir à condensation (1) selon l'une quelconque des revendications précédentes, dans lequel le premier récipient collecteur (11) communique avec un réservoir de condensat (14) situé au-dessus de celui-là pour collecter l'eau.
  6. Séchoir à condensation (1) selon l'une quelconque des revendications précédentes, lequel présente un canal d'air de refroidissement (9) ouvert ou fermé, au moyen duquel de l'air de refroidissement provenant d'un environ du séchoir à condensation (1) est amené au condenseur (10) au moyen d'un second ventilateur (8) et lequel, après le refroidissement de l'air de procédé, peut être évacué hors du séchoir à condensation (1).
  7. Procédé de séchage de linge dans un séchoir à condensation (1) comprenant une chambre de séchage (2) et un circuit d'air de procédé (3, 4, 5) pour la circulation d'air de procédé à travers la chambre de séchage (2), le circuit d'air de procédé (3, 4, 5) conduisant de la chambre de séchage (2) d'abord vers un condenseur (10) destiné à refroidir l'air de procédé, à séparer l'eau de l'air de procédé et à collecter l'eau dans un premier récipient collecteur (11), ensuite vers un premier ventilateur (7, 20) destiné à entraîner l'air de procédé, ensuite vers un chauffage (13) destiné à chauffer l'air de procédé et ensuite de nouveau vers la chambre de séchage (2), le premier ventilateur (7, 20) présentant un rotor (7) et un stator (20) réalisé en tant que spirale d'air de procédé (20),
    caractérisé en ce que l'eau qui s'accumule dans la spirale d'air de procédé (20) est transportée dans le premier récipient collecteur (11) par un agencement de guidage (12, 17, 19), formé entre la spirale d'air de procédé (20) et le premier récipient collecteur, au moyen d'une différence de pression se réglant entre le condenseur (20) et le ventilateur (7, 20).
  8. Procédé selon la revendication 7, dans lequel l'eau accumulée dans le premier récipient collecteur (11) est pompée dans un réservoir de condensat (14).
EP07727968A 2006-05-10 2007-04-11 Séchoir à condensation comprenant une spirale à air de procédé et procédé pour sécher dans un tel séchoir à condensation Not-in-force EP2024552B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006021828A DE102006021828A1 (de) 2006-05-10 2006-05-10 Kondensationstrockner mit einer Prozessluftspirale, und Verfahren zum Trocknen in einem solchen Kondensationstrockner
PCT/EP2007/053500 WO2007128641A1 (fr) 2006-05-10 2007-04-11 SÉchoir À condensation comprenant une spirale À air de procÉdÉ et procÉdÉ pour sÉcher dans un tel sÉchoir À condensation

Publications (2)

Publication Number Publication Date
EP2024552A1 EP2024552A1 (fr) 2009-02-18
EP2024552B1 true EP2024552B1 (fr) 2010-03-10

Family

ID=38197813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07727968A Not-in-force EP2024552B1 (fr) 2006-05-10 2007-04-11 Séchoir à condensation comprenant une spirale à air de procédé et procédé pour sécher dans un tel séchoir à condensation

Country Status (4)

Country Link
EP (1) EP2024552B1 (fr)
AT (1) ATE460526T1 (fr)
DE (2) DE102006021828A1 (fr)
WO (1) WO2007128641A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009080577A1 (fr) * 2007-12-20 2009-07-02 BSH Bosch und Siemens Hausgeräte GmbH Appareil de séchage de linge doté d'un canal d'air de traitement
DE102007061523A1 (de) * 2007-12-20 2009-06-25 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrocknungsgerät und Verfahren zum Betreiben desselben
DE102009003170A1 (de) 2009-05-15 2010-12-02 BSH Bosch und Siemens Hausgeräte GmbH Lüfterrad, Gebläse mit einem Lüfterrad, Wäschetrocknungsgerät mit einem Gebläse und Verfahren zum Herstellen eines Lüfterrads

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875681A (en) * 1974-02-27 1975-04-08 Gen Electric Condenser apparatus
FR2664625B1 (fr) * 1990-07-10 1993-12-24 Ciapem Seche-linge a turbine.
DE4106713A1 (de) * 1991-03-02 1992-09-03 Bauknecht Hausgeraete Kondensationswaeschetrockner
DE4238546A1 (de) * 1992-11-14 1994-05-19 Bauknecht Hausgeraete Wäschetrockner
DE4432567A1 (de) * 1994-09-13 1996-03-14 Bosch Siemens Hausgeraete Gehäuse für ein Gebläse in einem Haushaltgerät, insbesondere in einem Haushalt-Wäschetrockner
US5806204A (en) * 1997-06-13 1998-09-15 Mmats, Inc. Material dryer using vacuum drying and vapor condensation
EP1050618B1 (fr) * 1999-04-08 2003-10-15 BSH Bosch und Siemens Hausgeräte GmbH Echangeur de chaleur pour sèche-linge
DE19918085A1 (de) * 1999-04-21 2000-10-26 Bsh Bosch Siemens Hausgeraete Gebläse mit einem Spiralgehäuse

Also Published As

Publication number Publication date
DE502007003089D1 (de) 2010-04-22
EP2024552A1 (fr) 2009-02-18
ATE460526T1 (de) 2010-03-15
WO2007128641A1 (fr) 2007-11-15
DE102006021828A1 (de) 2007-11-15

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