EP2759635A2 - Sèche-linge avec chauffage d'appoint et échangeur de chaleur d'appoint - Google Patents

Sèche-linge avec chauffage d'appoint et échangeur de chaleur d'appoint Download PDF

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Publication number
EP2759635A2
EP2759635A2 EP14000037.3A EP14000037A EP2759635A2 EP 2759635 A2 EP2759635 A2 EP 2759635A2 EP 14000037 A EP14000037 A EP 14000037A EP 2759635 A2 EP2759635 A2 EP 2759635A2
Authority
EP
European Patent Office
Prior art keywords
process air
heat exchanger
drum
additional heat
evaporator
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.)
Granted
Application number
EP14000037.3A
Other languages
German (de)
English (en)
Other versions
EP2759635A3 (fr
EP2759635B1 (fr
Inventor
Markus Kerschdorfer
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.)
V-Zug AG
Original Assignee
V-Zug AG
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 V-Zug AG filed Critical V-Zug AG
Priority to SI201431744T priority Critical patent/SI2759635T1/sl
Publication of EP2759635A2 publication Critical patent/EP2759635A2/fr
Publication of EP2759635A3 publication Critical patent/EP2759635A3/fr
Application granted granted Critical
Publication of EP2759635B1 publication Critical patent/EP2759635B1/fr
Active 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • 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
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28—Air properties
    • D06F2103/32—Temperature
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/30—Blowers
    • 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 
    • D06F58/26—Heating arrangements, e.g. gas heating equipment
    • 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
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity

Definitions

  • the invention relates to a clothes dryer with heat pump and additional heat exchanger.
  • a clothes dryer with heat pump usually has a rotating drum for receiving the laundry to be dried.
  • the drum is arranged in a process air circuit.
  • heated process air is passed through the drum, then the air is cooled to remove water, reheated and returned to the drum.
  • a heat pump cycle is provided, in which a medium through a condenser, a throttle body (expansion valve), an evaporator and a compressor is fed back to the condenser. With the evaporator, the process air is cooled to remove their water, and with the condenser, it is then reheated.
  • an additional heat exchanger is arranged to extract heat to the system.
  • the drum has a horizontal axis of rotation, and the process air passes through the drum from back to front.
  • the additional heat exchanger is an air-to-air heat exchanger, which is designed to dissipate process air heat to the ambient air.
  • an additional heater is arranged in the process air circuit with which the process air can be heated. With such additional heating, the device can be heated faster at the beginning of the process, and / or at least part of the process can be carried out at a higher temperature.
  • the process air circuit is designed to guide the process air from the front to the back through the additional heat exchanger. This allows the process air exiting the drum at the front to be routed directly and in a short path to the inlet of the additional heat exchanger.
  • the additional heat exchanger In order to dissipate the heat of the additional heating, the additional heat exchanger must be relatively large. Therefore, the question arises as to how the additional heat exchanger is to be accommodated in the device.
  • the additional heat exchanger is arranged below the drum.
  • the additional heat exchanger is arranged above the drum.
  • the additional heat exchanger is attached to the back of the device.
  • back and front are defined by the direction of the flow of process air in the drum.
  • the process air passes through the drum axially (ie parallel to the horizontal axis of rotation) from the back to the front, ie the air is primarily from the back and the air outlet is primarily against the front of the drum.
  • Designations of the type “above”, “below”, “above”, “below” refer to the intended mounting orientation of the device.
  • a component A is arranged “below” (or “above” a component B, it is to be understood that at least a part of the component A is vertically below (or above) the component B.
  • the tumble dryer after Fig. 1 has a drum 1 for receiving the laundry to be dried. It is provided a process air cycle (which in Fig. 1 shown by solid lines), in which heated process air passed through the drum 1, then cooled and then reheated and fed back into the drum 1.
  • an additional electric heater 9 is provided, which allows the process air to selectively supply heat, e.g. when starting the device, or it can be used to raise the temperature level in the process air circuit generally.
  • the blower 10 is used for pumping the process air.
  • a heat pump cycle is provided (the path of the pumped by the heat pump cycle medium in Fig. 1 shown with dotted lines).
  • the medium is conveyed by a compressor 2 to a condenser 3, then via a throttle body 5, for example in the form of capillaries or an expansion valve, to an evaporator 6 and then back to the compressor 2.
  • the evaporator 6 serves to cool the process air and In this way, water is withdrawn while the condenser 3 serves to reheat the process air so that it can absorb new water.
  • an additional heat exchanger 4 is provided in the process air cycle. As mentioned above, it serves to extract heat from the process air cycle. In particular, he should dissipate the heat output of the additional heater 9 and the power loss of the heat pump. Preferably, it is arranged between the drum 1 and the evaporator 6, since it can extract water there from the air at the same time.
  • the additional heat exchanger 4 is an air-to-air heat exchanger, which is traversed on the one hand by the process air and on the other hand by ambient air, wherein the process air and the ambient air are preferably spatially separated and can not mix.
  • a fan 7 with which the ambient air is passed through the additional heat exchanger 4 in order to cool it.
  • the extracted from the additional heat exchanger 4 the process air circulation heat output is determined by the speed of the blower 7.
  • This speed is determined by a controller 8 of the device, depending on at least one temperature in the heat pump cycle and / or process air cycle.
  • a temperature sensor 11 is arranged in the heat pump cycle.
  • the controller is configured to control the speed of the fan 7 in response to the signal from the temperature sensor 11, e.g. by operating the blower 7 with greater power as the temperature rises.
  • the fan can be turned on only when the temperature exceeds a predetermined threshold.
  • the speed of the fan 7 is increased by the controller 8 with increasing temperature continuously or at least in several steps.
  • the temperature-dependent activation of the blower 7 makes it possible, for example when starting the tumble dryer, to supply energy to the process air cycle very quickly, so that the process temperature is reached quickly, but then in normal operation overheating of the heat pump cycle is prevented.
  • the temperature of the running medium in the heat pump cycle is determined where this temperature corresponds approximately to the condensation temperature of the medium. This is the case between capacitor 3 and throttle member 5, or the output side of the capacitor 3 or the input side of the throttle body. 5
  • FIG. 2 A first arrangement is in Fig. 2 shown. As can be seen, this approximately cuboid housing 14 of the device, which has a front side 15, a back side 16, perpendicular vertical side surfaces 17, an upper side 18 and a bottom 19.
  • the drum 1 is arranged with its horizontal axis of rotation 20.
  • the axis of rotation 20 is perpendicular to the front and back 15 and 16, respectively.
  • the components of the heat pump, and in particular the evaporator 6 and the condenser 3 and the compressor 2 are arranged below the drum 1 in the device base. Also, the additional heat exchanger 4 is located below the drum 1 in the device base. The arrangement of these heavy components below the drum 1 leads to a stable state of the device.
  • the additional heat exchanger 4 is located below the evaporator 6 and the condenser 3. In this position, it is easily accessible for cleaning.
  • the fan 10 and the auxiliary heater 9 are the fan 10 and the auxiliary heater 9 and there is a riser 21 is provided, in which the process air from the fan 10 and the auxiliary heater 9 to the back of the drum 1 is performed.
  • the process air flows through the drum 1 from the back 16 to the front 15 and thereby runs approximately parallel to the rotation axis 20.
  • the air then enters a channel in the door (not shown), and is then passed along the front down to the additional heat exchanger 4.
  • the process air is passed in the direction of the front side 15 to the rear side 16 through the additional heat exchanger 4. From there, the process air is then fed into a channel 22 again against the front side 15 to the evaporator 6.
  • the process air passes through from the front side 15 to the rear side 16, first the evaporator 6 and then the condenser 3, from where it again reaches the fan 10 on the rear side 16.
  • the ambient air from the fan 7 conveyed horizontally and transversely to the flow direction of the process air through the additional heat exchanger 4, ie the ambient air is guided from one side surface 17 to the other.
  • Fig. 3 shows a second possible arrangement, which differs from that according to Fig. 2 distinguished by the fact that the evaporator 6 and the condenser 3 are now arranged lower than the additional heat exchanger 4.
  • the additional heat exchanger 4 is located below the drum 1, between the drum 1 and the evaporator 6 and the capacitor. 3
  • FIG. 4 Another arrangement, in which the additional heat exchanger 4 is located below the drum 1, is in Fig. 4 shown.
  • the additional heat exchanger 4 is arranged horizontally next to the evaporator 6 and the condenser 3.
  • the process air at the front 15 of the unit is guided down to the additional heat exchanger. It passes through the additional heat exchanger 4 in the direction from the front side 15 to the rear side 16 and is then guided again in the channel 22 back to the front and to the evaporator 6.
  • the arrangement of the additional heat exchanger 4 horizontally next to the evaporator 6 and capacitor 3 gives a good thermal decoupling by 4 rising from the condenser 3 and additional heat exchanger 4 hot air cooling in the evaporator 6 does not affect.
  • the additional heat exchanger can be left and right of the evaporator and condenser.
  • the process air from the drum 1 is guided upward along the front side 15, enters the additional heat exchanger 4 from the front side and passes through it in the direction of the rear side 16.
  • the process air then enters a first channel 26 on the rear side 16 of the device. in which it is guided by the additional heat exchanger 4 down.
  • the first channel 26 may be located inside the device (ie, in front of the back wall) or outside the device (ie, behind the back wall), as shown in FIG Fig. 5 is indicated by a dashed variant 26 '.
  • the first channel 26 goes below the drum 1 in a second channel 27, in which the process air to the front 15 of the device and to the inlet of the evaporator 6 is guided.
  • the process air from the drum 1 is first led upwards and then in a first air channel 28 towards the back and into the additional heat exchanger 4. It passes through the additional heat exchanger 4 against the front side 15 and then enters a second air channel 29, which is arranged on the front side 15 of the tumble dryer. In the second air channel 29, the process air from the additional heat exchanger 4 is guided down to the evaporator 6.
  • the first air channel 28 extends in the cavity between the drum 1 and an upper edge of the tumble dryer.
  • the exiting from the front of the drum 1 process air is introduced through a first channel 30 which extends in the cavity between the drum 1 and an upper edge of the tumble dryer against the back in the upper end of the additional heat exchanger 4. Then, the air is passed from above to the bottom through the additional heat exchanger 4 and then enters a second channel 31, through which it passes to the front 15 of the device and then enters the evaporator 6.
  • a tumble dryer which has a drum 1 with a horizontal axis of rotation 20 and a heat pump with an evaporator 6 and a condenser 4.
  • the process air exits the drum 1 against the front 1 of the device (For front loaders usually in a running through the door channel) and is passed down, for example, to then enter the additional heat exchanger 4.
  • the additional heat exchanger 4 is an air-to-air heat exchanger in which the process air is cooled.
  • the process air exits to the rear from the additional heat exchanger 4 and is then led to the front of the device and there to the evaporator 6. Thereafter, the air passes through the condenser 3, a blower 10 and an additional heater 9 back to the drum 1.
  • the additional heat exchanger 4 is advantageously arranged below the drum 1.
  • the arrangement variants described are characterized by a very compact design.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Drying Of Solid Materials (AREA)
EP14000037.3A 2013-01-23 2014-01-07 Sèche-linge avec chauffage d'appoint et échangeur de chaleur d'appoint Active EP2759635B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201431744T SI2759635T1 (sl) 2013-01-23 2014-01-07 Sušilnik perila z dodatnim ogrevanjem in dodatnim prenosnikom toplote

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00279/13A CH705546A3 (de) 2013-01-23 2013-01-23 Wäschetrockner mit Zusatzheizung und Zusatzwärmetauscher.

Publications (3)

Publication Number Publication Date
EP2759635A2 true EP2759635A2 (fr) 2014-07-30
EP2759635A3 EP2759635A3 (fr) 2015-11-25
EP2759635B1 EP2759635B1 (fr) 2020-10-14

Family

ID=47747202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14000037.3A Active EP2759635B1 (fr) 2013-01-23 2014-01-07 Sèche-linge avec chauffage d'appoint et échangeur de chaleur d'appoint

Country Status (3)

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EP (1) EP2759635B1 (fr)
CH (1) CH705546A3 (fr)
SI (1) SI2759635T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109797530A (zh) * 2017-11-17 2019-05-24 青岛海尔洗衣机有限公司 一种烘干结构及采用该结构的干衣机

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102063765B1 (ko) 2013-06-20 2020-03-02 엘지전자 주식회사 폐열 회수수단을 갖는 건조기
EP3056603A1 (fr) 2015-02-11 2016-08-17 BSH Hausgeräte GmbH Sèche-linge et procédé de fonctionnement d'un sèche-linge
CN107208349B (zh) 2015-02-11 2019-07-16 Bsh家用电器有限公司 干衣机及用于操作的干衣机方法
US20170342646A1 (en) * 2016-05-31 2017-11-30 Wuxi Little Swan Co., Ltd. Clothes dryer or washer-dryer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699018B1 (de) 2006-01-27 2010-01-15 V Zug Ag Wäschetrockner mit Kohlendioxid-Wärmepumpe.

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Publication number Priority date Publication date Assignee Title
DE102007002181B3 (de) * 2007-01-15 2008-08-21 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner mit einer Wärmepumpe
DE102007013997A1 (de) * 2007-03-23 2008-09-25 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner und Verfahren zum Betreiben eines Kondensationstrockners
JP2009006126A (ja) * 2007-05-31 2009-01-15 Panasonic Corp 衣類乾燥装置
DE102007027866A1 (de) * 2007-06-18 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Kondensationstrockner mit einer Wärmepumpe sowie Verfahren zu seinem Betrieb
EP3109358B1 (fr) * 2009-06-29 2018-08-22 Electrolux Home Products Corporation N.V. Appareil de sechage de linge
CN103201424B (zh) * 2010-11-10 2015-12-02 阿塞里克股份有限公司 热电式热泵衣物烘干机
CH701466B1 (de) * 2010-11-12 2014-04-30 V Zug Ag Wäschetrockner mit variablem Trockenluft-Volumenstrom und Verfahren zu dessen Betrieb.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH699018B1 (de) 2006-01-27 2010-01-15 V Zug Ag Wäschetrockner mit Kohlendioxid-Wärmepumpe.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109797530A (zh) * 2017-11-17 2019-05-24 青岛海尔洗衣机有限公司 一种烘干结构及采用该结构的干衣机

Also Published As

Publication number Publication date
CH705546A3 (de) 2014-03-31
EP2759635A3 (fr) 2015-11-25
CH705546A2 (de) 2013-02-28
SI2759635T1 (sl) 2021-02-26
EP2759635B1 (fr) 2020-10-14

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