EP2407587B1 - Sèche-linge doté d'une pompe à chaleur - Google Patents

Sèche-linge doté d'une pompe à chaleur Download PDF

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Publication number
EP2407587B1
EP2407587B1 EP10401103A EP10401103A EP2407587B1 EP 2407587 B1 EP2407587 B1 EP 2407587B1 EP 10401103 A EP10401103 A EP 10401103A EP 10401103 A EP10401103 A EP 10401103A EP 2407587 B1 EP2407587 B1 EP 2407587B1
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EP
European Patent Office
Prior art keywords
heat exchanger
pipe portion
condenser
evaporator
tumble dryer
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.)
Active
Application number
EP10401103A
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German (de)
English (en)
Other versions
EP2407587A1 (fr
EP2407587B2 (fr
Inventor
Ralf Bussmann
Wolfhard Jording
Marlen Laforet
Josef Schneider
Alexander Malchus
Stefan Siepmann
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
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Application filed by Miele und Cie KG filed Critical Miele und Cie KG
Priority to ES10401103T priority Critical patent/ES2394785T3/es
Priority to EP10401103.6A priority patent/EP2407587B2/fr
Priority to PL10401103T priority patent/PL2407587T3/pl
Priority to SI201030093T priority patent/SI2407587T1/sl
Publication of EP2407587A1 publication Critical patent/EP2407587A1/fr
Application granted granted Critical
Publication of EP2407587B1 publication Critical patent/EP2407587B1/fr
Publication of EP2407587B2 publication Critical patent/EP2407587B2/fr
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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 
    • D06F58/206—Heat pump arrangements

Definitions

  • the invention relates to a tumble dryer comprising a arranged in a housing, driven by a motor, rotatably mounted on a horizontal or inclined axis drum, a closed process air circuit in which supplied by means of a process air blower drying air via an air inlet of the drum, via an air outlet from this discharged, dehumidified in a heat exchanger and then reheated by a heater, a heat pump device with a refrigerant circuit in which circulates refrigerant in a piping system with an evaporator, a compressor, a condenser and a throttle, wherein the heat exchanger, the evaporator and the heating Condenser of the heat pump further comprising an inner heat exchanger, which is adapted to provide a heat transfer of a high-pressure line section to a pressurized line section line len.
  • a heat pump dryer which additionally comprises an internal heat exchanger to completely vaporize liquid residues or pots in the vaporous refrigerant in the low-pressure line section.
  • the EP 0 521 298 A2 discloses heat exchanger devices for compressed air systems in which heat is released from a refrigerant line to the air.
  • the invention thus has the object to provide a tumble dryer with an efficient heat pump.
  • the advantage achieved with the invention is that less so-called waste heat from the heat pump circuit must be removed, so that additional heat exchanger in the refrigerant circuit for cooling are no longer necessary. This requires the Refrigerant circuit less space, so that a particularly compact arrangement is possible here. Furthermore, by reducing the waste heat, the energy used for the drying process is used more efficiently, so that the dryer emits less heat into the installation room, which is particularly desirable in living spaces.
  • the heat pump device in the refrigerant circuit comprises an inner heat exchanger, which is adapted to provide a heat transfer of a high-pressure line section to a pressurized line section.
  • a line section can also be formed by the condenser itself.
  • the internal heat exchanger causes the usable enthalpy difference between the pressure side of the compressor and the condenser heat exchanger to increase.
  • the usable enthalpy difference between the throttle input and the compressor input increases. This makes the cold side colder and the warm side warmer, compared to a heat pump without an internal heat exchanger. This increases the effectiveness of the heat pump.
  • the line sections forming the heat transfer are in direct contact, without an air gap being present between them.
  • the inner heat exchanger is formed by providing a heat transfer from a line section between the condenser and the throttle to a line section between the evaporator and the compressor.
  • the internal heat exchanger can be produced by providing heat transfer from a line section between the compressor and the condenser to a line section between the throttle and the evaporator.
  • the inner heat exchanger consists of a wiring harness which comprises the high-pressure line section and the low-pressure line section.
  • the tube forming the inner heat exchanger are summarized as a wiring harness.
  • the wiring harness can then be shaped accordingly, as permitted by the space inside the device housing.
  • the two line sections are looped around each other within the inner heat exchanger to provide a defined contact surface of the line walls are arranged for heat transfer.
  • the pronounced contact surfaces improve the heat transfer from the warmer high-pressure line section to the colder low-pressure line section.
  • the inner heat exchanger is formed in that the low-pressure line section extends within the high-pressure line section.
  • the colder low-pressure line section is at least partially enclosed or flowed around by the warmer refrigerant.
  • the low-pressure line section is arranged coaxially within the high-pressure line section.
  • the cooler low-pressure line section which is colder than the high-pressure line section, is completely bypassed by the warmer refrigerant, so that an optimum heat transfer of the refrigerant is provided between these two line sections.
  • the inner heat exchanger is designed as a spirally wound wiring harness.
  • a long wiring harness with the high-pressure and low-pressure pipe sections contained therein can be accommodated quite compactly in a confined space.
  • no abrupt deflections of the refrigerant take place here, so that the inner heat exchanger in this form forms a low flow resistance for the refrigerant.
  • the inner heat exchanger is formed as a serpentine-shaped wiring harness.
  • This design is particularly compact and small-scale run. Although this results in an increased flow resistance at the numerous deflections, but can be neglected at a slowed flow velocity of the resistance.
  • the inner heat exchanger and / or the wiring harness is plate-shaped.
  • This embodiment is particularly compact and easy to manufacture, since the hollow, plate-shaped component can be optimally formed on the available space within the dryer housing.
  • the low-pressure line section is led to the line section of the condenser in heat-conducting contact to provide the inner heat exchanger. This eliminates the previously separately formed inner heat exchanger, which is now integrated in the compact block of the condenser.
  • the heat-conductive contact is provided by means of ribs or fins, which are connected in heat-conducting manner with the line section in the condenser.
  • the ribs or fins are already present in the condenser to increase the heat-superior surface to the process air flow, so that this embodiment is particularly easy to implement in a tumble dryer.
  • fins or ribs for heat dissipation are attached to the wall of the high-pressure pipe section, whereby the surface of the outer pipe section is increased, thereby improving the heat release to the ambient air from the dryer housing out. This causes a so-called desuperheating of the refrigerant, since the refrigerant frequently heats up continuously during the drying process until excess heat has to be removed from the refrigerant circuit.
  • the slats are arranged in blocks, which are provided with openings for the passage of the inner heat exchanger forming the wiring harness. This facilitates the manufacture of the internal heat exchanger.
  • a prefabricated lamella block of pre-bent wiring harness is inserted into openings and then fixed so that a subsequent attachment of the slats is easily possible.
  • the heat pump device with the aforementioned components, the engine and the process air blower in a compact functional module of the tumble dryer.
  • the training has proven to be advantageous as a bottom-side functional module.
  • the Fig. 1 shows in the perspective of a tumble dryer 1.
  • the tumble dryer 1 in this case comprises a housing 2 in which a rotatably mounted drum 3 is arranged.
  • the three figures each show the clothes dryer 1 in the closed situation.
  • the functional module 5 which receives the components for the heat pump, the blower and the drive of the drum 3.
  • the process air PL is generated by means of a blower and fed to the air inlet 6 of the drum 3.
  • the drying air PL passes from the drum 3 in the bottom module 5, in which in a channel 8 of the heat exchanger 15 (FIG. Fig. 2 ) for cooling and condensation of the process air and the heater 16 ( Fig. 2 ) are arranged for heating the process air PL.
  • Fig. 2 schematically shows the heat pump dryer with the circulation of the process air PL and the components of the heat pump.
  • the channel 8 can be seen, in which the heat exchanger 15 and the radiator 16 are located, which are components of the heat pump.
  • the line system 20 serves to connect the components of the heat pump.
  • the air outlet 7 receives the moist, exhausted process air PL, wherein the fan 9, the flow of the process air PL provides.
  • a motor 10 drives the fan 9 and provides the rotational movement of the drum 3 by means of a drum drive.
  • the heat pump device comprises a refrigerant circuit in which refrigerant circulates in a line system 20 with an evaporator 15, a compressor 14, a condenser 16 and a throttle 15a, the heat exchanger 15 containing the evaporator 15 and the heater the condenser 16 of the heat pump.
  • the line system 20 provides the refrigerant cycle starting from the pressure side of the compressor 14 to the condenser 16, starting from this starting point to the throttle 15a, then to the evaporator 15 and from there to the compressor 14 ready.
  • the heat pump further comprises an internal heat exchanger 17 which is adapted to provide heat transfer of a high-pressure line section 18 between the condenser 16 and the throttle 15a to a low-pressure line section 19 between the evaporator 15 and the compressor 14.
  • a blower 23 is arranged such that it can, if necessary, guide an air flow to the inner heat exchanger. As a result, excess heat is removed from the refrigerant circuit.
  • Fig. 3 shows a section of the inner heat exchanger 17 as a helical wiring harness 24.
  • the pipe section 24 includes an outer tube 18, since the high-pressure pipe section 18 forms.
  • an inner tube 19 is coaxially arranged, which forms the low-pressure pipe section 19.
  • individual fins 21 are mounted on the outside, which form an enlarged surface of the pipe wall and thereby cause improved heat dissipation to the environment.
  • Fig. 4 shows the inner heat exchanger with a likewise helical wiring harness 24.
  • the fins 21 are formed as a block having openings 22 through which the wiring harness 24 is passed in each case.
  • Fig. 5 shows the inner heat exchanger in the embodiment with a serpentine-shaped wiring harness 24.
  • This arrangement is particularly easy to manufacture, since in a manufacturing step lamellae 21 are punched and then can be applied to the tubing 24.
  • As internal heat exchanger 17 and a plate heat exchanger can be used.
  • Fig. 6 schematically shows the components of the heat pump with an inner heat exchanger 17 in another embodiment.
  • the heat pump comprises an internal heat exchanger 17, which provides a heat transfer from the high-pressure line section, which in this case forms the line section of the condenser 16, to the line section 19, which supplies the refrigerant with low pressure.
  • the heat exchanger 17 is here attached directly to the block of the condenser 16 or is part of this block, so that no separate component is necessary.
  • a desuperheating heat exchanger 17a is arranged between condenser and throttle 15a, which is embodied here by way of example as a capillary tube, which can dissipate excess heat from the refrigerant in the pressurized line.
  • the blower 23 provides, if necessary, for a cooling air flow.

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

Claims (14)

  1. Sèche-linge (1), comprenant un tambour (3) disposé dans un carter (2), pouvant être entraîné au moyen d'un moteur (10) et supporté en rotation par le biais d'un axe horizontal ou incliné, un circuit d'air de process (PL) fermé dans lequel, au moyen d'un ventilateur d'air de process (9), de l'air de séchage est acheminé au tambour (3) par le biais d'une admission d'air (6), évacué du tambour par le biais d'une évacuation d'air (7), déshumidifié dans un échangeur de chaleur (15) et puis réchauffé par un chauffage (16), un équipement de pompe à chaleur avec un circuit de réfrigérant dans lequel du réfrigérant circule dans un système de conduite avec un évaporateur (15), un compresseur (14), un condenseur (16) et un papillon (15a), l'échangeur de chaleur contenant l'évaporateur (15), et le chauffage contenant le condenseur (16) de la pompe à chaleur, comprenant en outre un système de conduite (20) qui réalise le circuit de réfrigérant en partant du côté pression du compresseur (14) vers le condenseur (16), en partant de ce denier vers le papillon (15a), puis vers l'évaporateur (15), et en partant de ce dernier vers le compresseur (14), comprenant également un échangeur de chaleur (17) interne qui est aménagé pour réaliser une transmission de chaleur d'un tronçon de conduite (18) alimenté en haute pression vers un tronçon de conduite (19) alimenté en basse pression,
    caractérisé en ce que
    l'échangeur de chaleur (17) interne est composé d'une ligne de conduite (24) qui comprend le tronçon de conduite (18) alimenté en haute pression et le tronçon de conduite (19) alimenté en basse pression, et en ce que les tronçons de conduite formant la transmission de chaleur sont en contact direct.
  2. Sèche-linge (1), comprenant un tambour (3) disposé dans un carter (2), pouvant être entraîné au moyen d'un moteur (10) et supporté en rotation par le biais d'un axe horizontal ou incliné, un circuit d'air de process (PL) fermé dans lequel, au moyen d'un ventilateur d'air de process (9), de l'air de séchage est acheminé au tambour (3) par le biais d'une admission d'air (6), évacué du tambour par le biais d'une évacuation d'air (7), déshumidifié dans un échangeur de chaleur (15) et puis réchauffé par un chauffage (16), un équipement de pompe à chaleur avec un circuit de réfrigérant dans lequel du réfrigérant circule dans un système de conduite avec un évaporateur (15), un compresseur (14), un condenseur (16) et un papillon (15a), l'échangeur de chaleur contenant l'évaporateur (15), et le chauffage contenant le condenseur (16) de la pompe à chaleur, comprenant en outre un système de conduite (20) qui réalise le circuit de réfrigérant en partant du côté pression du compresseur (14) vers le condenseur (16), en partant de ce dernier vers le papillon (15a), puis vers l'évaporateur (15), et en partant de ce dernier vers le compresseur (14), comprenant également un échangeur de chaleur (17) interne qui est aménagé pour réaliser une transmission de chaleur d'un tronçon de conduite (18) alimenté en haute pression vers un tronçon de conduite (19) alimenté en basse pression,
    caractérisé en ce que
    l'échangeur de chaleur (17) interne est composé d'une ligne de conduite (24) qui comprend le tronçon de conduite (18) alimenté en haute pression et le tronçon de conduite (19) alimenté en basse pression, et en ce que la ligne de conduite (24) est formée par le fait que le tronçon de conduite (19) basse pression est situé à l'intérieur du tronçon de conduite (18) haute pression.
  3. Sèche-linge (1) selon la revendication 1 ou 2,
    caractérisé en ce que
    l'échangeur de chaleur (17) intérieur est aménagé pour réaliser une transmission de chaleur à partir d'un tronçon de conduite (18) entre le condenseur (16) et le papillon (15a) vers un tronçon de conduite entre l'évaporateur (15) et le compresseur (14).
  4. Sèche-linge (1) selon la revendication 1 ou 2,
    caractérisé en ce que
    l'échangeur de chaleur (17) interne est aménagé pour réaliser une transmission de chaleur à partir d'un tronçon de conduite (18a) entre le compresseur (14) et le condenseur (16) vers un tronçon de conduite entre le papillon (15a) et l'évaporateur (15).
  5. Sèche-linge (1) selon la revendication 1,
    caractérisé en ce que,
    dans la ligne de conduite (24), les deux tronçons de conduite (18, 19) sont enroulés l'un autour de l'autre pour la réalisation d'une surface de contact définie des parois de conduite pour la transmission de chaleur.
  6. Sèche-linge (1) selon la revendication 2,
    caractérisé en ce que
    le tronçon de conduite (19) basse pression est disposé de façon coaxiale à l'intérieur du tronçon de conduite (18) haute pression.
  7. Sèche-linge (1) selon la revendication 1 ou 2,
    caractérisé en ce que
    la ligne de conduite (24) est constituée enroulée en spirale pour la réalisation de l'échangeur de chaleur (17) interne.
  8. Sèche-linge (1) selon la revendication 1 ou 2,
    caractérisé en ce que
    la ligne de conduite (24) est constituée en forme de ligne sinueuse ou de boucle pour la réalisation de l'échangeur de chaleur (17) interne.
  9. Sèche-linge (1) selon la revendication 1 ou 2,
    caractérisé en ce que
    l'échangeur de chaleur (17) interne et/ou la ligne de conduite (24) est constitué(e) en forme de plaque.
  10. Sèche-linge (1), comprenant un tambour (3) disposé dans un carter (2), pouvant être entraîné au moyen d'un moteur (10) et supporté en rotation par le biais d'un axe horizontal ou incliné, un circuit d'air de process (PL) fermé dans lequel, au moyen d'un ventilateur d'air de process (9), de l'air de séchage est acheminé au tambour (3) par le biais d'une admission d'air (6), évacué du tambour par le biais d'une évacuation d'air (7), déshumidifié dans un échangeur de chaleur (15) et puis réchauffé par un chauffage (16), un équipement de pompe à chaleur avec un circuit de réfrigérant dans lequel du réfrigérant circule dans un système de conduite avec un évaporateur (15), un compresseur (14), un condenseur (16) et un papillon (15a), l'échangeur de chaleur contenant l'évaporateur (15), et le chauffage contenant le condenseur (16) de la pompe à chaleur, comprenant en outre un système de conduite (20) qui réalise le circuit de réfrigérant en partant du côté pression du compresseur (14) vers le condenseur (16), en partant de ce dernier vers le papillon (15a), puis vers l'évaporateur (15), et en partant de ce dernier vers le compresseur (14), comprenant également un échangeur de chaleur (17) interne qui est aménagé pour réaliser une transmission de chaleur d'un tronçon de conduite (18) alimenté en haute pression vers un tronçon de conduite (19) alimenté en basse pression,
    caractérisé en ce que
    le tronçon de conduite (19) alimenté en basse pression est conduit en contact de conduction thermique avec le condenseur (16) pour la réalisation de l'échangeur de chaleur (17) interne.
  11. Sèche-linge (1) selon la revendication 10,
    caractérisé en ce
    qu'il est réalisé un contact de conduction thermique au moyen d'ailettes ou de lamelles qui sont raccordées en conduction thermique au tronçon de conduite dans le condenseur.
  12. Sèche-linge (1) selon une des revendications 1 à 10,
    caractérisé en ce que
    la ligne de conduite (24) comprend extérieurement, sur le tronçon de conduite (18) haute pression, des lamelles (21) pour l'évacuation de chaleur.
  13. Sèche-linge (1) selon la revendication 12,
    caractérisé en ce que
    les lamelles (21) sont disposées sous forme de blocs (21a) qui sont munis d'ouvertures (22) pour le passage de la ligne de conduite (24) formant l'échangeur de chaleur (17) interne.
  14. Sèche-linge (1) selon une des revendications 1 à 13,
    caractérisé par
    un ventilateur (23) destiné à produire un flux d'air de refroidissement qui est aménagé pour évacuer de la chaleur de la ligne de conduite (24) et/ou de l'échangeur de chaleur (17) interne.
EP10401103.6A 2010-07-16 2010-07-16 Sèche-linge doté d'une pompe à chaleur Active EP2407587B2 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES10401103T ES2394785T3 (es) 2010-07-16 2010-07-16 Secadora de ropa con bomba de calor
EP10401103.6A EP2407587B2 (fr) 2010-07-16 2010-07-16 Sèche-linge doté d'une pompe à chaleur
PL10401103T PL2407587T3 (pl) 2010-07-16 2010-07-16 Suszarka do bielizny z pompą ciepła
SI201030093T SI2407587T1 (sl) 2010-07-16 2010-07-16 Sušilni stroj s toplotno črpalko

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10401103.6A EP2407587B2 (fr) 2010-07-16 2010-07-16 Sèche-linge doté d'une pompe à chaleur

Publications (3)

Publication Number Publication Date
EP2407587A1 EP2407587A1 (fr) 2012-01-18
EP2407587B1 true EP2407587B1 (fr) 2012-10-31
EP2407587B2 EP2407587B2 (fr) 2018-01-10

Family

ID=43259857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10401103.6A Active EP2407587B2 (fr) 2010-07-16 2010-07-16 Sèche-linge doté d'une pompe à chaleur

Country Status (4)

Country Link
EP (1) EP2407587B2 (fr)
ES (1) ES2394785T3 (fr)
PL (1) PL2407587T3 (fr)
SI (1) SI2407587T1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014002471A1 (de) * 2013-06-24 2014-12-24 Diehl Ako Stiftung & Co. Kg Elektronisches Hausgerät mit Wärmepumpe
EP2980305B1 (fr) 2014-08-01 2017-01-25 Miele & Cie. KG Appareil menager comme un seche-linge, un lave-seche linge, un lave linge, un lave-vaisselle ayant une pompe a chaleur
DE102014013045A1 (de) 2014-09-03 2016-03-03 Detlef Görgens Wäschetrockner oder Waschmaschine mit Wäschetrocknungseinrichtung mit Wärmepumpeneinrichtung, bei denen Teile der Maschinen aus Mineralguss bestehen.
KR20180014615A (ko) * 2016-08-01 2018-02-09 엘지전자 주식회사 의류처리장치
CN109668218B (zh) * 2018-11-28 2024-05-07 珠海格力电器股份有限公司 一种换热器及具有其的空调设备
EP4086538A1 (fr) * 2021-05-03 2022-11-09 BSH Hausgeräte GmbH Module de compresseur comportant un moyen de refroidissement et appareil ménager le comprenant

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9204952U1 (fr) 1991-06-04 1992-07-16 Autokuehler Gmbh & Co Kg, 3520 Hofgeismar, De
DE4422191A1 (de) 1993-07-14 1995-01-19 Miele & Cie Trockengerät, insbesondere Kondensationswäschetrockner, mit einer Wärmepumpeneinrichtung
JPH0838795A (ja) † 1994-08-01 1996-02-13 Hitachi Ltd 乾燥装置
ITPN20000070A1 (it) 2000-11-20 2002-05-20 Electrolux Zanussi Elettrodome Asciugabiancheria a pompa di calore
JP2005253588A (ja) 2004-03-10 2005-09-22 Sanyo Electric Co Ltd 乾燥機
JP5422881B2 (ja) † 2007-09-27 2014-02-19 パナソニック株式会社 除湿装置
EP1983095B1 (fr) * 2008-08-08 2012-09-05 V-Zug AG Sèche-linge doté d'un chauffage dans le circuit de pompe à chaleur
JP2010104579A (ja) † 2008-10-30 2010-05-13 Toshiba Corp 洗濯機
EP2385169A1 (fr) † 2010-05-03 2011-11-09 Electrolux Home Products Corporation N.V. Machine à laver avec système de pompe à chaleur et procédé de fonctionnement de la machine à laver

Also Published As

Publication number Publication date
PL2407587T3 (pl) 2013-03-29
ES2394785T3 (es) 2013-02-05
EP2407587A1 (fr) 2012-01-18
SI2407587T1 (sl) 2013-01-31
EP2407587B2 (fr) 2018-01-10

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