EP2761078B1 - 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
EP2761078B1
EP2761078B1 EP12766059.5A EP12766059A EP2761078B1 EP 2761078 B1 EP2761078 B1 EP 2761078B1 EP 12766059 A EP12766059 A EP 12766059A EP 2761078 B1 EP2761078 B1 EP 2761078B1
Authority
EP
European Patent Office
Prior art keywords
compressor
refrigerant
evaporator
provides
refrigerant pipe
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
EP12766059.5A
Other languages
German (de)
English (en)
Other versions
EP2761078A1 (fr
Inventor
Selcuk KARAGOZ
Dogan Demirhan
Arif Zafer Ozarslan
Can Sar
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Priority to PL12766059T priority Critical patent/PL2761078T3/pl
Publication of EP2761078A1 publication Critical patent/EP2761078A1/fr
Application granted granted Critical
Publication of EP2761078B1 publication Critical patent/EP2761078B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 present invention relates to a heat pump laundry dryer wherein the efficiency of the compressor is improved.
  • the heat pump used for drying the laundry is composed of flow ducts wherein the refrigerant flows, a compressor that provides circulation by pressurizing the refrigerant, an evaporator and a condenser, and the drying process is performed by passing the processing air over the laundry.
  • the condenser disposed in the heat pump functions as a heater and the evaporator functions as a condenser.
  • the processing air is heated while passing from the condenser, delivered onto the laundry and after dehumidifying the laundry, is condensed while passing over the evaporator.
  • the refrigerant sent from the compressor to the condenser with increased pressure and temperature in vapor phase passes through the capillary and enters into the evaporator in liquid phase, and afterwards the refrigerant is once more changed to the vapor phase.
  • the refrigerant pipes passing through the evaporator must be colder than the processing air.
  • the refrigerant pipes in the evaporator sometimes overheat, and thus the dehumidification speed and the efficiency of the evaporator decrease.
  • the amount of refrigerant circulated in the refrigerant pipes is increased and the temperature of the evaporator pipes is decreased; however, this solution causes another problem and as the efficiency of the evaporator increases, the efficiency of the compressor decreases.
  • the refrigerant Since the amount of refrigerant is increased, the refrigerant does not entirely change to the vapor phase, and it is sent from the evaporator to the compressor in two phases, that is liquid and vapor. Since the compressor can only pressurize and send the refrigerant in vapor phase to the condenser, the refrigerant entering into the compressor must be entirely in vapor phase. In the state of the art, in order to prevent the refrigerant in liquid phase from entering into the compressor, an accumulator is used; however, the capacity of the accumulator may be insufficient, thus the refrigerant in liquid phase enters into the compressor, thus causing the efficiency of the compressor to fall.
  • EP 1 983 095 A2 discloses a laundry dryer wherein a heating takes place in the refrigerant cycle for heating the refrigerant before it enters into the compressor of the laundry dryer.
  • US 5 916 254 A discloses a system for preheating of a refrigerant wherein a pipe contacts the compressor before entering the compressor, in order to vaporize the refrigerant by the heat of the compressor before entering the compressor.
  • EP 2 182 104 A2 discloses a clothes dryer wherein a capillary tube is interposed between a refrigerant pipe of an evaporator and a refrigerant pipe of a condenser of a clothes dryer.
  • the capillary tube is disposed outside the circulation duct.
  • an accumulator to be mounted in the outer casing of the clothes dryer and interposed between the refrigerant pipe of the evaporator and the inlet of the compressor of the clothes dryer, so as to be equally disposed outside the circulation duct.
  • the liquid phase of the refrigerant separated by the accumulator is returned to the inlet or the compressor.
  • the aim of the present invention is the realization of a heat pump laundry dryer wherein the efficiency of the compressor is increased by preventing the refrigerant in liquid phase from entering into the compressor.
  • the heat pump laundry dryer realized in order to attain the aim of the present invention has a refrigerant pipe disposed among the compressor, the condenser and the evaporator, wherein the refrigerant circulates, and the part of the refrigerant pipe between the evaporator and the compressor is shaped so as to contact the outer casing of the compressor before being connected to the compressor.
  • the refrigerant is heated before entering into the compressor and provided to change from the liquid + vapor phase to the vapor phase, and the refrigerant in liquid phase is prevented from entering into the compressor.
  • the laundry dryer further comprises an accumulator that provides the liquid phase and the vapor phase of the refrigerant moving from the evaporator to the compressor, to be separated and that provides only the refrigerant in vapor phase to enter into the compressor.
  • the refrigerant pipe coming from the evaporator is wrapped around the compressor casing before being connected to the accumulator, then it is connected to the accumulator and to the compressor from the accumulator.
  • the refrigerant pipe wraps the outer casing of the compressor in coil form, an effective heat transfer is realized between the refrigerant pipe and the compressor and the need for cooling the compressor is also fulfilled.
  • the refrigerant sucked by the compressor at the part of the refrigerant pipe at the inlet of the compressor is heated and provided to change to the vapor phase, thus preventing the refrigerant in liquid phase from entering into the compressor.
  • the compressor casing is cooled by the refrigerant pipes wrapped around and usage of a cooling fan for cooling the compressor is not needed any more.
  • the laundry dryer (1) comprises a drum (2) wherein the laundry to be dried is placed, an air duct (3) wherein the processing air cycle is realized, a fan (4) that provides the circulation of the processing air, a compressor (5) that realizes the refrigerant cycle, an evaporator (6) that provides the processing air in the air duct (3) to be dehumidified, a condenser (7) that provides the dehumidified processing air to be heated, a capillary or an expansion valve (K) that is disposed between the condenser (7) and the evaporator (6) and a refrigerant pipe (8) that provides the refrigerant pressurized by the compressor (5) to pass through the condenser (7) and the evaporator (6) to be delivered to the compressor (5) again.
  • a fan (4) that provides the circulation of the processing air
  • a compressor (5) that realizes the refrigerant cycle
  • an evaporator (6) that provides the processing air in the air duct (3) to be dehumidified
  • the part of the refrigerant pipe (8) between the evaporator (6) and the compressor (5) is shaped so as to contact the compressor (5) casing before being connected to the compressor inlet (G), and before entering into the compressor (5), the refrigerant is provided to be heated by the high-temperature compressor (5) casing ( Figure 1 , Figure 2 ).
  • the compressor (5) realizes the suction of the refrigerant from the evaporator (6) in order to pressurize and send the refrigerant to the condenser (7).
  • the temperature of the refrigerant flowing at this part of the refrigerant pipe (8) and hence the temperature of the outer surface of the refrigerant pipe (8) is lower with respect to the temperature of the compressor (5) casing.
  • the refrigerant is vaporized in the evaporator (6); however, since it cannot be entirely changed to the vapor phase, the refrigerant leaves the evaporator (6) in two phases, that is liquid and vapor.
  • the part of the refrigerant pipe (8) that extends from the evaporator (6) to the compressor (5) is made contact with the compressor (5), and thus the two-phase refrigerant moving through the refrigerant pipe (8) is heated before entering into the compressor (5) and is provided to change into the vapor phase so as to be pressurized by the compressor (5).
  • the refrigerant in liquid phase is prevented from entering into the compressor (5).
  • the compressor (5) casing is cylindrical and the part of the refrigerant pipe (8) that contacts the compressor (5) is in coil form, and the refrigerant pipe (8) has helical windings (S) that wrap around the compressor (5) casing ( Figure 2 ).
  • the number of the windings (S) of the refrigerant pipe (8) wrapped around the compressor (5) may change due to the need for heating the refrigerant; moreover, in order to improve the heat transfer, refrigerant pipes (8) in various forms (D-shaped, having cylindrical or flat cross-section, in microchannel or grooved structure) can be used.
  • the temperature of the helical windings (S) of the refrigerant pipe (8) wrapped around the compressor (5) casing is lower with respect to the temperature of the compressor (5) casing, and the compressor (5) casing is provided to be cooled by means of the helical refrigerant pipe (8). No additional cooling fan is needed for cooling the compressor (5).
  • the laundry dryer (1) comprises an accumulator (9) that provides the liquid phase and the vapor phase of the refrigerant moving from the evaporator (6) to the compressor (5) in the refrigerant pipe (8), to be separated and that provides the refrigerant in vapor phase to enter into the compressor (5), and the refrigerant pipe (8) that extends from the evaporator (6) to the compressor (5) is wrapped around the compressor (5) casing before being connected to the accumulator (9).
  • the refrigerant pipe (8) is connected to the inlet of the accumulator (9) after being wrapped around the compressor (5) casing, and connected to the compressor inlet (G) from the accumulator (9) outlet.
  • the two-phase refrigerant leaving the evaporator (6) passes through the refrigerant pipe (8) wrapped around the compressor (5) casing and heats up, and at this time cools the compressor (5) and enters into the accumulator (9).
  • the refrigerant that is heated in the refrigerant pipe (8) wrapped around the compressor (5) casing and that is partially in liquid phase, is decomposed in the accumulator (9), and the refrigerant is provided to enter into the compressor (5) entirely in vapor phase.
  • the refrigerant pipe (8) disposed between the evaporator (6) and the compressor (5) is wrapped around the cylindrical compressor (5) casing in helical form, and the refrigerant in liquid phase is prevented from entering into the compressor (5), thus increasing the efficiency of the compressor (5).
  • the refrigerant pipe (8) wrapped around the compressor (5) casing cools the compressor (5), thus no additional cooling fan is needed for cooling the compressor (5).

Landscapes

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

Claims (2)

  1. Un sèche-linge (1) comprenant un tambour (2) dans lequel le linge à sécher est placé, un conduit d'air (3) dans lequel le cycle de l'air de processus est effectué, un ventilateur (4) qui permet la circulation de l'air de processus, un compresseur (5) qui effectue le cycle du fluide frigorigène, un évaporateur (6) qui permet la déshumidification de l'air de processus dans le conduit d'air (3), un condenseur (7) qui permet le chauffage de l'air de processus déshumidifié et un tuyau de fluide frigorigène (8) qui permet au fluide frigorigène comprimé par le compresseur (5) de passer à travers le condenseur (7) et l'évaporateur (6) pour être délivré au compresseur (5) à nouveau, et où le fluide frigorigène est chauffé avant d'entrer dans le compresseur (5),
    caractérisé en ce que la partie du tuyau du fluide frigorigène (8) entre l'évaporateur (6) et le compresseur (5) est formée de manière à toucher l'enveloppe du compresseur (5) avant d'être reliée à l'entrée du compresseur (G), pour que le fluide frigorigène est chauffé et qu'un accumulateur (9) permet la séparation de la phase liquide et la phase vapeur du fluide frigorigène se déplaçant à partir de l'évaporateur (6) vers le compresseur (5) et permet au fluide frigorigène en phase vapeur d'entrer dans le compresseur (5), et en ce que le tuyau de fluide frigorigène (8) est enroulé autour de l'enveloppe du compresseur (5) avant l'accumulateur (9).
  2. Un sèche-linge (1) selon la Revendication 1, caractérisé en ce que le tuyau de fluide frigorigène (8) présente des enroulements hélicoïdaux (8) qui sont enroulés autour de l'enveloppe du compresseur (5).
EP12766059.5A 2011-09-27 2012-09-21 Sèche-linge doté d'une pompe à chaleur Not-in-force EP2761078B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12766059T PL2761078T3 (pl) 2011-09-27 2012-09-21 Suszarka do prania z pompą ciepła

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201109512 2011-09-27
PCT/EP2012/068651 WO2013045363A1 (fr) 2011-09-27 2012-09-21 Sèche-linge doté d'une pompe à chaleur

Publications (2)

Publication Number Publication Date
EP2761078A1 EP2761078A1 (fr) 2014-08-06
EP2761078B1 true EP2761078B1 (fr) 2016-02-03

Family

ID=46934562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12766059.5A Not-in-force EP2761078B1 (fr) 2011-09-27 2012-09-21 Sèche-linge doté d'une pompe à chaleur

Country Status (3)

Country Link
EP (1) EP2761078B1 (fr)
PL (1) PL2761078T3 (fr)
WO (1) WO2013045363A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101987695B1 (ko) 2012-10-22 2019-06-11 엘지전자 주식회사 2차 응축기가 설치된 증발기를 구비한 의류건조기
US20160298283A1 (en) * 2013-11-29 2016-10-13 Arcelik Anonim Sirketi Laundry treatment appliance with a compressor cooling line in parallel with processing air line
ITPR20130107A1 (it) * 2013-12-30 2015-07-01 Indesit Co Spa Elettrodomestico di asciugatura.
KR101613966B1 (ko) 2014-12-29 2016-04-20 엘지전자 주식회사 의류처리장치
JP6543072B2 (ja) * 2015-04-14 2019-07-10 日立グローバルライフソリューションズ株式会社 ヒートポンプ装置および給湯装置
ES2754879A1 (es) * 2018-10-18 2020-04-20 Bsh Electrodomesticos Espana Sa Elemento de calentamiento para el compresor de una disposición de bomba de calor
WO2021117141A1 (fr) * 2019-12-10 2021-06-17 三菱電機株式会社 Appareil à pompe à chaleur
EP3896214A1 (fr) * 2020-04-17 2021-10-20 BSH Hausgeräte GmbH Sécheuse d'appareil ménager comprenant un circuit de pompe à chaleur ayant un compresseur et son procédé de fonctionnement
PL3895594T3 (pl) * 2020-04-17 2024-03-18 BSH Hausgeräte GmbH Urządzenie gospodarstwa domowego obejmujące pompę ciepła oraz sposób działania takiego urządzenia gospodarstwa domowego

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0171745B1 (ko) * 1996-08-31 1999-03-20 배순훈 냉장고의 냉각용 냉매순환방법
JPH1137574A (ja) * 1997-07-09 1999-02-12 Daewoo Electron Co Ltd 冷蔵庫用冷却システム
JP2003139416A (ja) * 2001-11-05 2003-05-14 Fujitsu General Ltd 冷却装置
EP2149767A1 (fr) * 2008-07-28 2010-02-03 IMAT S.p.A. Dispositif de pompe à chaleur
EP1983095B1 (fr) * 2008-08-08 2012-09-05 V-Zug AG Sèche-linge doté d'un chauffage dans le circuit de pompe à chaleur
JP5259317B2 (ja) 2008-09-19 2013-08-07 株式会社東芝 洗濯乾燥機
JP2010104579A (ja) * 2008-10-30 2010-05-13 Toshiba Corp 洗濯機
JP2010220933A (ja) 2009-03-25 2010-10-07 Toshiba Corp 洗濯乾燥機

Also Published As

Publication number Publication date
EP2761078A1 (fr) 2014-08-06
PL2761078T3 (pl) 2016-07-29
WO2013045363A1 (fr) 2013-04-04

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