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WO2017137323A1 - Machine à laver et sécher le linge comprenant un condenseur refroidi par air - Google Patents

Machine à laver et sécher le linge comprenant un condenseur refroidi par air Download PDF

Info

Publication number
WO2017137323A1
WO2017137323A1 PCT/EP2017/052389 EP2017052389W WO2017137323A1 WO 2017137323 A1 WO2017137323 A1 WO 2017137323A1 EP 2017052389 W EP2017052389 W EP 2017052389W WO 2017137323 A1 WO2017137323 A1 WO 2017137323A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
pipe line
circulation duct
air circulation
water
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
PCT/EP2017/052389
Other languages
English (en)
Inventor
Mutlu IPEK
Vasi Kadir Ertis
Yavuz Sahin
Fatih KASAP
Nihat Kandemir
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
Publication of WO2017137323A1 publication Critical patent/WO2017137323A1/fr
Anticipated expiration legal-status Critical
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 
    • D06F58/24—Condensing arrangements

Definitions

  • the present invention relates to a laundry washing and drying machine comprising an air-cooled condenser.
  • the cleaning agents like the detergent, softener etc. required for the washing process are placed into a dispenser.
  • the water received from the mains is passed through the dispenser and mixed with detergent, and the mixed wash water is transferred to the tub.
  • air-cooled condensers that realize the condensation process by using the outer environment air are widely used.
  • the humid air that comes from over the laundry and passes through the process air duct is condensed in the condenser cooled by means of the outside environment air, thus the air that is dried by being dehumidified is delivered again onto the laundry through the process air duct.
  • the condensation process performed in the air-cooled condenser is dependent on the temperature of the outer environment air.
  • the temperature of the outer environment should be below a certain value so that sufficient condensation is obtained in the condenser and the laundry is dried.
  • the temperature of the outer environment increases, the amount of moisture condensed in the condenser decreases and the drying process cannot be performed efficiently enough.
  • a washer-dryer wherein the temperature of the outer environment is measured by means of a temperature sensor on the cooling channel of the condenser and the speed of the cooling fan of the condenser is changed when the temperature of the outer environment exceeds a certain value.
  • the aim of the present invention is the realization of a laundry washing and drying machine comprising an air-cooled condenser with improved condensation efficiency.
  • the laundry washing and drying machine realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a drum wherein the laundry is placed; an air circulation duct wherein the process air circulation, providing the drying of the laundry, is performed in the drying process after the washing process; a fan that provides the circulation of the process air; an air-cooled condenser that condenses the process air; an external air duct that enables the condenser to be cooled by delivering the cooling air sucked from the outer environment to the condenser, and a valve connected to the water mains.
  • the laundry washing and drying machine of the present invention comprises a water spraying device
  • the cooling air passes through the cooling ducts in the condenser and the process air passes through the drying ducts.
  • the cooling channels decreases the temperature of the humid process air passing through the drying ducts with which the cooling ducts have a heat-transfer relation and condenses the process air, and the dry process air is sent onto the laundry in the drum.
  • the temperature of the outer environment changes depending on the seasons and/or the temperature of the environment wherein the laundry washing and drying machine is operated. When the temperature of the outer environment, for example exceeds 30-35 °C, the cooling air, that draws heat from the humid process air, heats up and cannot provide a sufficient temperature difference for an efficient condensation.
  • the valve connected to the water mains is opened, the mains water is delivered from the water mains to the water spraying device.
  • the water spraying device sprays the water taken from the water mains to the air circulation duct and enables the process air passing through the air circulation duct to be cooled by means of water before being delivered to the condenser.
  • the process air is cooled by both the air-cooled condenser and the water.
  • the water spraying device comprises at least one pipe line that surrounds the inner surface of the air circulation duct and that has more than one hole thereon.
  • the water delivered from the valve to the water spraying device contacts the process air taken into the air circulation duct by means of the holes on the pipe line, thus enabling the process air to be cooled.
  • the process air that moves in the air circulation duct by sweeping the surfaces of the pipe line, is enabled to be cooled.
  • the water spraying device comprises the holes arranged on the surface of the pipe line, facing the air circulation duct.
  • the pipe line surrounds the inner surfaces of the air circulation duct, thus the water sent through the holes is enabled to completely sweep the inner walls of the air circulation duct.
  • the pipe line, that is disposed into the preferably rectangular air circulation duct, comprises at least one hole facing each surface of the air circulation duct.
  • the pipe line comprises an upper pipe line and a lower pipe line that are connected to each other by means of a connection pipe.
  • the water, that is sprayed through the holes arranged on the upper pipe line and the lower pipe line that are positioned in the air circulation duct so that there is a distance predetermined by the producer therebetween, is enabled to be dispersed over a larger area on the air circulation duct.
  • the water, that is delivered from the upper pipe line to the air circulation duct heats up while moving towards the lower pipe line on the walls of the air circulation duct, thus decreasing the cooling performance.
  • the lower pipe line positioned below the upper pipe line By means of the lower pipe line positioned below the upper pipe line, the cold water is once more sent to the wall of the air circulation duct, thus the area of the surface cooled along the air circulation duct is increased. Moreover, by means of the upper pipe line and the lower pipe line, the length of the pipe line inside the air circulation duct is increased, thus the cooling performance is improved by increasing the area of the cold surface that the process air contacts.
  • the water spring device comprises the lower pipe line that has a larger number of holes than the upper pipe line.
  • the number of holes on the upper pipe line By changing the number of holes on the upper pipe line, the amount of water delivered from the upper pipe line to the lower pipe line by means of the connection line is controlled.
  • the mains water taken from the valve By decreasing the number of holes on the upper pipe line, the mains water taken from the valve is prevented from being completely discharged through the holes on the upper pipe line and some of the water is enabled to be delivered to the lower pipe line.
  • the water spraying device comprises a nozzle that is disposed on the upper pipe line and that extends from the upper pipe line to the lower pipe line.
  • the nozzle By means of the nozzle, the water taken from the upper pipe line is sprayed to the air circulation duct so as to disperse over the entire inner volume remaining between the walls of the air circulation duct.
  • the entire process air is enabled to be moved through the air circulation duct in direct contact with the water.
  • the laundry washing and drying machine comprises a control unit that opens the valve during the drying step so as to enable the water spraying device to spray water to the air circulation duct.
  • the control unit keeps the valve open during the drying step, thus providing the delivery of water from the water mains to the water spraying device.
  • the air circulation duct is enabled to be efficiently cooled during the drying step.
  • the air-cooled condenser is also cooled with water, thus improving the condensation efficiency of the condenser.
  • Figure 1 – is the schematic view of a laundry washing and drying machine.
  • Figure 2 - is the perspective view of the water spraying device in an embodiment of the present invention.
  • the laundry washing and drying machine (1) comprises a drum (2) wherein the laundry is placed; an air circulation duct (3) wherein the process air (PA) circulation, providing the drying of the laundry, is performed in the drying process after the washing process; a fan (4) that provides the circulation of the process air (PA); an air-cooled condenser (5) that condenses the process air (PA); an external air duct (6) that enables the condenser (5) to be cooled by delivering the cooling air (CA) sucked from the outer environment to the condenser (5), and a valve (7) connected to the water mains (S) ( Figure 1).
  • PA process air
  • CA cooling air
  • the laundry washing and drying machine (1) of the present invention comprises a water spraying device (8)
  • the condenser (5) condenser and dehumidifies the process air (PA).
  • the valve (7) connected to the water mains (S) is opened, the water spraying device (8), that is disposed into the air circulation duct (3) so as to be between the drum (2) and the condenser (5), sprays the mains water to the air circulation duct (3).
  • the hot process air (PA) leaving the drum (2) is cooled by means of the mains water sprayed to the air circulation duct (3), thus the condensation performance of the condenser (5) is improved ( Figure 1 and Figure 2).
  • the water spraying device (8) comprises at least one pipe line (9) that surrounds the inner surface of the air circulation duct (3) and that has more than one hole (10) thereon.
  • the pipe line (9) that has preferably the same form as the air circulation duct (3), is disposed into the air circulation duct (3), the holes (10) arranged on the pipe line (9) face the inner surface of the air circulation duct (3).
  • the water, that is sprayed to the air circulation duct (3) through the holes (10) from the pipe line (9) is enabled to efficiently wet the walls of the air circulation duct (3) and the cooling performance of the water spraying device (8) is improved.
  • the water spring device (8) comprises the holes (10) arranged on the surface of the pipe line (9), facing the air circulation duct (3).
  • the water coming through the holes (10) are sprayed to the air circulation duct (3) and thus the walls of the air circulation duct (3) are enabled to be cooled. Consequently, the process air (PA) taken into the air circulation duct (3) is cooled by contacting the cold walls of the air circulation duct (3).
  • the temperature difference between the process air (PA) and the cooling air (CA) is increased, thereby improving the condensation efficiency of the condenser (5).
  • the pipe line (9) comprises an upper pipe line (12) and a lower pipe line (13) that are connected to each other by means of a connection pipe (11).
  • the holes (10) facing the walls of the air circulation duct (3).
  • the mains water taken from the valve (7) is first delivered to the upper pipe line (12). Some of the water taken into the upper pipe line (12) is sprayed to the walls of the air circulation duct (3) through the holes (10) while some is delivered to the lower pipe line (13) by passing through the connection pipe (11). All of the water delivered to the lower pipe line (13) is sprayed to the walls of the air circulation duct (3) through the holes (10).
  • the water spraying device (8) comprises the lower pipe line (13) that has a larger number of holes (10) than the upper pipe line (12).
  • the mains water taken from the valve (7) is prevented from completely passing through the holes (10) to be sent to the air circulation duct (3).
  • some of the mains water taken from the valve (7) passes through the holes (10) to be delivered to the air circulation duct (3) while some is delivered to the lower pipe line (13) by passing through the connection pipe (11).
  • the water spraying device (8) comprises a nozzle (14) that is disposed on the upper pipe line (12) and that extends from the upper pipe line (12) to the lower pipe line (13).
  • the mains water passing through the nozzle (14) is sprayed in the horizontal direction.
  • the walls of the air circulation duct (3) are efficiently circumferentially swept with water.
  • the laundry washing and drying machine (1) comprises a control unit (15) that opens the valve (7) during the drying step so as to enable the water spraying device (8) to spray water to the air circulation duct (3).
  • the control unit (15) opens the valve (7) at the beginning of the drying step and provides the delivery of the mains water to the water spraying device (8).
  • the process air (PA) is delivered to the air circulation duct (3) in synchronization with the delivery of water from the water spraying device (8) to the air circulation duct (3), and the process air (PA) is enable to be efficiently cooled during the drying process.
  • the air-cooled condenser (5) becomes air- and water-cooled, thus improving the condensation efficiency of the condenser (5).

Landscapes

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

Abstract

La présente invention concerne une machine à laver et sécher le linge (1) comprenant un tambour (2) dans lequel est placé le linge ; un conduit de circulation d'air (3) dans lequel la circulation de l'air de traitement (PA), assurant le séchage du linge, étant exécutée dans le processus de séchage après le processus de lavage ; un ventilateur (4) qui assure la circulation de l'air de traitement (PA) ; un condenseur refroidi par air (5) qui condense l'air de traitement (PA) ; un conduit d'air externe (6) qui permet au condenseur (5) d'être refroidi en fournissant l'air de refroidissement (CA) aspiré depuis l'environnement extérieur au condenseur (5), et une soupape (7) reliée au réseau d'eau (S).
PCT/EP2017/052389 2016-02-08 2017-02-03 Machine à laver et sécher le linge comprenant un condenseur refroidi par air Ceased WO2017137323A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2016/01628 2016-02-08
TR201601628 2016-02-08

Publications (1)

Publication Number Publication Date
WO2017137323A1 true WO2017137323A1 (fr) 2017-08-17

Family

ID=57965943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/052389 Ceased WO2017137323A1 (fr) 2016-02-08 2017-02-03 Machine à laver et sécher le linge comprenant un condenseur refroidi par air

Country Status (1)

Country Link
WO (1) WO2017137323A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3847305A4 (fr) * 2018-09-07 2022-06-01 Arçelik Anonim Sirketi Machine à laver et à sécher le linge comprenant un condenseur à eau

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003057968A1 (fr) * 2002-01-11 2003-07-17 Lg Electronics Inc. Lave-linge et seche-linge comportant une structure de conduits amelioree
KR20060004369A (ko) * 2004-07-09 2006-01-12 주식회사 대우일렉트로닉스 드럼 세탁기용 건조장치
KR20070075483A (ko) * 2006-01-13 2007-07-24 엘지전자 주식회사 세탁물 처리 기기의 수냉식 응축기
EP2241663A1 (fr) * 2009-04-15 2010-10-20 Electrolux Home Products Corporation N.V. Machine à laver-sèche linge et son procédé de fonctionnement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003057968A1 (fr) * 2002-01-11 2003-07-17 Lg Electronics Inc. Lave-linge et seche-linge comportant une structure de conduits amelioree
KR20060004369A (ko) * 2004-07-09 2006-01-12 주식회사 대우일렉트로닉스 드럼 세탁기용 건조장치
KR20070075483A (ko) * 2006-01-13 2007-07-24 엘지전자 주식회사 세탁물 처리 기기의 수냉식 응축기
EP2241663A1 (fr) * 2009-04-15 2010-10-20 Electrolux Home Products Corporation N.V. Machine à laver-sèche linge et son procédé de fonctionnement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3847305A4 (fr) * 2018-09-07 2022-06-01 Arçelik Anonim Sirketi Machine à laver et à sécher le linge comprenant un condenseur à eau

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