EP0737772A2 - Procédé pour sécher et dispositif de séchage utilisant ce procédé - Google Patents

Procédé pour sécher et dispositif de séchage utilisant ce procédé Download PDF

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Publication number
EP0737772A2
EP0737772A2 EP96105519A EP96105519A EP0737772A2 EP 0737772 A2 EP0737772 A2 EP 0737772A2 EP 96105519 A EP96105519 A EP 96105519A EP 96105519 A EP96105519 A EP 96105519A EP 0737772 A2 EP0737772 A2 EP 0737772A2
Authority
EP
European Patent Office
Prior art keywords
drying
air
membrane
heat exchanger
process air
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.)
Ceased
Application number
EP96105519A
Other languages
German (de)
English (en)
Other versions
EP0737772A3 (fr
Inventor
Reiner Dr. Ing. Numrich
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 EP0737772A2 publication Critical patent/EP0737772A2/fr
Publication of EP0737772A3 publication Critical patent/EP0737772A3/fr
Ceased 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 
    • 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 for drying dry material and a drying device for performing the method.
  • the invention also relates to a method for drying laundry and a clothes dryer for carrying out the method.
  • Drying processes in which a blower promotes a flow of dry air through a drying chamber which is loaded with dry material and the process air laden with moisture is then passed over a heat exchanger, and devices for carrying out these processes are sufficiently known from the prior art.
  • the dry air is heated by a heater and passed through the drying chamber, in which it is enriched with moisture, which is then removed from the process air stream by condensation in the heat exchanger.
  • the dehumidified process air is heated again via the heating and fed to the drying chamber.
  • a disadvantage of such drying devices and methods is that the process air has to be constantly cooled in the heat exchanger for the condensation of the moisture and then heated again in the heating, which leads to increased energy consumption.
  • the drying air generated by a fan is heated by a heater and passed as process air through the drum with the wet laundry items. Subsequently, the moisture-laden air is passed outside in so-called exhaust air dryers, while in so-called condensation dryers it is passed through a condensation device for the removal of moisture, in order then to be passed through the drum again. In both cases, heating is provided to heat the process air flow and no measures are taken to recover the heat.
  • condensation tumble dryers with heat recovery devices in which the process air is passed in a closed circuit over the drum with the wet laundry, then dehumidified in a heat exchanger and then heated again by a heater.
  • Such condensation clothes dryer have a heat pump device with a refrigerant circuit, in which refrigerant circulates in a line system with an evaporator, a compressor, a condenser and a throttle and the heat exchanger contains the evaporator and the heater contains the condenser of the heat pump.
  • a dryer is known from DE-GM 18 27 021.
  • a high difference between the condenser output and the evaporator output must be supplied in the start phase of the drying process. This leads to increased energy supply in the heating phase.
  • the object of the invention is to optimize a drying process with regard to the energy requirement and to design a drying device for carrying out the process with a simple and effective device for heat recovery.
  • the advantages that can be achieved with the invention are, in particular, that the water vapor is separated from the exhaust air by using a membrane module and that heat is economically recovered by vapor compression. No separate heating for heating the process air flow is required for the method for drying laundry according to the invention. The amount of heat required to heat the process air is generated solely by compression of the separated water vapor and the subsequent condensation of the compressed water vapor, which then serves to heat the actual process air stream via the heat exchanger.
  • An embodiment of the invention is shown in the drawing and will be described in more detail below.
  • the method is shown in FIG. 1 in a simplified flow diagram.
  • the ambient air is sucked in by a process air blower (1), flows through a heat exchanger (2) and saturates with water vapor in the rotatable drum (3) of the tumble dryer.
  • water vapor is preferably absorbed in the hydrophilic membrane (4). Due to a predetermined negative pressure on the permeate side (5), the water vapor molecules diffuse through the membrane (4) and are desorbed on the permeate side (5). The air molecules are discharged as dried exhaust air on the retentate side (6) of the membrane (4). Due to the selectivity of the membrane (4), there is a gas mixture (vapors) consisting of approx.
  • FIG 2 shows the simplified flow diagram for any drying device.
  • the drying chamber for the dry goods is designated (9).
  • a blower for promoting the dry air flow can be arranged at any point in the process air flow.
  • the procedure is as already described for Figure 1.
  • the drying air is passed through the drying chamber (9) and through a membrane module with a hydrophilic membrane (4).
  • the dry exhaust air is discharged on the retentate side of the membrane (4) and can also be reintroduced into the process air flow.
  • the water vapor is compressed on the permeate side (5) and heats the process air flow in the heat exchanger (2).
  • the condensate is drained off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP96105519A 1995-04-15 1996-04-06 Procédé pour sécher et dispositif de séchage utilisant ce procédé Ceased EP0737772A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19514155 1995-04-15
DE19514155A DE19514155A1 (de) 1995-04-15 1995-04-15 Verfahren zum Trocknen sowie eine Trockeneinrichtung zur Durchführung des Verfahrens

Publications (2)

Publication Number Publication Date
EP0737772A2 true EP0737772A2 (fr) 1996-10-16
EP0737772A3 EP0737772A3 (fr) 1997-11-12

Family

ID=7759722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96105519A Ceased EP0737772A3 (fr) 1995-04-15 1996-04-06 Procédé pour sécher et dispositif de séchage utilisant ce procédé

Country Status (2)

Country Link
EP (1) EP0737772A3 (fr)
DE (1) DE19514155A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001011134A1 (fr) * 1999-08-09 2001-02-15 Aktiebolaget Electrolux Machine a laver la lessive avec sechage a la vapeur
WO2006062261A1 (fr) 2004-12-06 2006-06-15 Lg Electronics Inc. Seche-linge
US11465097B2 (en) 2018-12-28 2022-10-11 Whirlpool Corporation Moisture removing device for a laundry appliance that incorporates a nanopore membrane

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007016078A1 (de) * 2007-04-03 2008-10-09 BSH Bosch und Siemens Hausgeräte GmbH Hybridtrockner und Verfahren zum Betreiben eines solchen Hybridtrockners

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471537A (en) * 1982-01-18 1984-09-18 Indesit Industria Elettrodomestici Italiana S.P.A. Dryer apparatus having an improved air circulation
DE9204952U1 (fr) * 1991-06-04 1992-07-16 Autokuehler Gmbh & Co Kg, 3520 Hofgeismar, De
JPH0654995A (ja) * 1992-08-10 1994-03-01 Nitto Denko Corp 乾燥機
WO1994005846A1 (fr) * 1992-08-27 1994-03-17 Fisher & Paykel Limited Sechoir pour vetements a cycle de pompage de chaleur
DE4330456C1 (de) * 1993-09-08 1995-03-16 Blomberg Werke Gmbh Wäschetrockner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471537A (en) * 1982-01-18 1984-09-18 Indesit Industria Elettrodomestici Italiana S.P.A. Dryer apparatus having an improved air circulation
DE9204952U1 (fr) * 1991-06-04 1992-07-16 Autokuehler Gmbh & Co Kg, 3520 Hofgeismar, De
JPH0654995A (ja) * 1992-08-10 1994-03-01 Nitto Denko Corp 乾燥機
WO1994005846A1 (fr) * 1992-08-27 1994-03-17 Fisher & Paykel Limited Sechoir pour vetements a cycle de pompage de chaleur
DE4330456C1 (de) * 1993-09-08 1995-03-16 Blomberg Werke Gmbh Wäschetrockner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 18, no. 288 (C-1207), 2.Juni 1994 & JP 06 054995 A (NITTO DENKO CORP), 1.März 1994, *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001011134A1 (fr) * 1999-08-09 2001-02-15 Aktiebolaget Electrolux Machine a laver la lessive avec sechage a la vapeur
US6585781B1 (en) 1999-08-09 2003-07-01 Aktiebolaget Electrolux Laundry washing machine with steam drying
WO2006062261A1 (fr) 2004-12-06 2006-06-15 Lg Electronics Inc. Seche-linge
EP1819868A1 (fr) * 2004-12-06 2007-08-22 LG Electronics Inc. Seche-linge
EP1819868A4 (fr) * 2004-12-06 2009-04-22 Lg Electronics Inc Seche-linge
US8826559B2 (en) 2004-12-06 2014-09-09 Lg Electronics Inc. Clothes dryer
US8863400B2 (en) 2004-12-06 2014-10-21 Lg Electronics Inc. Clothes dryer
US11465097B2 (en) 2018-12-28 2022-10-11 Whirlpool Corporation Moisture removing device for a laundry appliance that incorporates a nanopore membrane
US11850549B2 (en) 2018-12-28 2023-12-26 Whirlpool Corporation Moisture removing device for a laundry appliance that incorporates a nanopore membrane

Also Published As

Publication number Publication date
DE19514155A1 (de) 1996-10-17
EP0737772A3 (fr) 1997-11-12

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