EP3091120A1 - Laveuse sécheuse et méthode pour une laveuse sécheuse - Google Patents

Laveuse sécheuse et méthode pour une laveuse sécheuse Download PDF

Info

Publication number
EP3091120A1
EP3091120A1 EP16020147.1A EP16020147A EP3091120A1 EP 3091120 A1 EP3091120 A1 EP 3091120A1 EP 16020147 A EP16020147 A EP 16020147A EP 3091120 A1 EP3091120 A1 EP 3091120A1
Authority
EP
European Patent Office
Prior art keywords
adsorption module
tub
process air
laundry
blower
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.)
Withdrawn
Application number
EP16020147.1A
Other languages
German (de)
English (en)
Inventor
Olaf Witte
Stefan Siepmann
Norbert Wieczorek
Michael Presto
Meltem Erdogan
Uwe Bau
Franz Lanzerath
André Bardow
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 EP3091120A1 publication Critical patent/EP3091120A1/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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 washer-dryer, that is to say a domestic appliance which is capable of both washing and drying laundry.
  • a washer-dryer that is to say a domestic appliance which is capable of both washing and drying laundry.
  • the washer dryer primarily saves space - it only needs to be purchased and set up a device.
  • a washer-dryer has a tub and a laundry drum rotatably arranged in the tub to hold laundry.
  • a heating element, a fan and a condenser are provided, which together with the tub provide a circuit which is traversed by a process air in a drying process.
  • Another drying concept provides that adsorbents are used for drying in household appliances.
  • An example of this shows EP 2 315 547 B1 , From which results in a dishwasher in which a zeolite-filled sorption is operated as a drying device.
  • An application of drying by means of adsorption in the area of the washer dryer is described in EP 2 439 329 B1 and in DE 10 2007 031 481 A1 disclosed.
  • the invention thus presents the problem of providing a washer-dryer and a method for its operation in which the design of the adsorption module and its arrangement in the washer-dryer is optimized.
  • the invention is based on the idea of arranging and designing an adsorption module such that a retrofitting of a conventional, that means by means of a condenser and possibly a heat pump working washer dryer with an adsorption module retrofit. It has proven to be particularly advantageous to arrange the adsorption module behind the blower in the process air cycle described below.
  • the washer-dryer has a control device which is designed to carry out the treatment method according to the invention, that is to say to conduct the process air in such a way that it first passes through the blower and then the adsorption module.
  • the adsorption module may be an open adsorption system in direct communication with the atmosphere. Here, the adsorption and the desorption occur at ambient pressure. Alternatively, it may be a closed adsorption system, ie a system sealed from the ambient air. With a closed adsorption system, the working pressure can be freely selected.
  • a partially or already completely discharged adsorption module ie an adsorption module in which the adsorbent contained therein is essentially dry
  • moist process air is blown out of the tub into the adsorption module during the drying phase by the fan.
  • the moisture from the process air is adsorbed by the adsorbent.
  • the adsorption is an exothermic process, so that the heat energy released due to the adsorption process heats the process air.
  • the dry due to the flow through the adsorption hot process air is passed by means of the blower in the tub, where it absorbs moisture from there arranged in the laundry drum laundry and so dry the laundry.
  • the now again moist process air is then passed through the adsorption module again in the sense of a cycle in order to continue loading the adsorbent.
  • the drying process may continue to operate until the adsorbent is fully loaded, that is, until the adsorbent is unable to absorb additional moisture at a given process pressure. This is usually carried out at a loading of the adsorbent between 20% and 40%, depending on the adsorbent. If the laundry is then not sufficiently dry, drying the clothes by means of a conventional drying process can continue.
  • a capacitor can be used.
  • the use of a heat pump can be beneficial.
  • the adsorption module in the drying phase is operated simultaneously with the condenser and optionally with the heat pump.
  • This has the advantage that the drying process can run faster.
  • the majority of moisture is removed from the process air passing out of the tub by means of the condenser, and the adsorption module serves to remove the residual moisture from the process air which emerges from the condenser.
  • the process may be tuned so that the adsorbent in the adsorption module is fully loaded only at the end of the drying phase or even at the end of two consecutive drying phases.
  • the adsorption module can also be operated temporarily or at intervals in the drying phase.
  • a boost mode can be provided, in which the adsorption module is switched on after half or towards the end of a drying phase in order to accelerate the drying process abruptly.
  • a wash load of laundry after the washing phase is usually distributed over two drying processes. For example, following a wash at a standard load of 5.5 kg of laundry, usually two drying phases are performed at a load of about 2.75 kg each. This is the reason why it can be advantageous if the adsorption module is completely laden with moisture only after the second drying phase. The advantage is then that the adsorption module can be active during both drying phases in order to support the drying process.
  • a partially or already fully loaded adsorption module ie an adsorption module in which the adsorbent is loaded to saturation with adsorbed moisture
  • the moisture is removed from the adsorbent and in the tub in a subsequent washing phase in a desorption process directed.
  • the process air fed into the adsorption module must have a certain minimum temperature, namely an adsorption-dependent desorption temperature. This desorption temperature is much higher in conventional adsorbents than the temperature required for washing.
  • the moist process air emerging from the adsorption module is therefore always warmer than the laundry in the tub, so that the moisture condenses on the laundry. Due to this condensation process condensation heat is released, so that at the same time the laundry is heated and brought to the washing temperature required for the selected washing process or optimum washing temperature.
  • the adsorption module arranged downstream of the fan, so that the process air flowing out of the tub process air flows through the fan and then through the adsorption before it is returned to the tub.
  • conventional washer-dryers ie washer-dryers, which work without adsorption modules, cost-effectively and efficiently subsequently with an adsorption module.
  • the washer-dryer preferably has a condenser which is arranged between the tub and the blower, so that the process air flowing out of the tub flows through the condenser, then through the blower and then through the adsorption module before being returned to the tub. It may also be arranged a heat pump assembly between the tub and the blower.
  • the adsorption module is arranged in a construction space above the tub.
  • the adsorption module has a cuboid shape, wherein the height of the adsorption module, ie its vertical extent is preferably substantially less than its width and depth, ie its horizontal dimensions.
  • “Above”, “vertical” and “horizontal” refer to the preferred installation orientation of the washer-dryer.
  • the adsorbent in the adsorption module in the form of a body is shaped, enclosed or heaped up so that the body is flowed through by the process air along a body thickness, wherein the body thickness forms the shortest dimension along the body.
  • the body is preferably cuboidal.
  • the body is delimited by an entry plane for inflow of process air into the body and an exit plane for effluent of process air from the body, the body thickness being measured as the distance between the entry plane and the exit plane, and between the entry plane and an exit plane first module inner wall of the adsorption module, an entrance slit and / or an exit slit is formed between the exit plane and a second module inner wall of the adsorption module.
  • the process air When flowing through the adsorption module, the process air first penetrates into the entrance slit. Through the entry level, the process air then penetrates into the body formed from the adsorbent and out again through the exit plane. On This ensures that the process air flows through the adsorbent as evenly as possible.
  • the entrance slit perpendicular to the entrance plane and / or the exit slit perpendicular to the exit plane preferably has a slit width which corresponds to at least 15%, 20% or 25% of the body thickness.
  • the size ratio between the width of the entrance slit and / or the exit slit and the body thickness is about 1 to 5.
  • the total height of the adsorption module is preferably the sum of the body thickness and the slit widths of the entrance slit and / or the exit slit.
  • the body thickness is preferably between 30mm and 80mm, preferably between 40mm and 60mm.
  • the gap width of the entrance slit and / or the exit slit is preferably between 5mm and 20mm.
  • the body In the entry plane, the body preferably has a square or nearly square shape.
  • the adsorption module width and the adsorption module depth perpendicular to the total height of the adsorption module are preferably between 250 mm and 400 mm, preferably between 300 mm and 350 mm.
  • the adsorption module contains between 2kg and 7kg adsorbent, preferably between 2.5kg and 4.5kg or between 4.5kg and 6.5kg, more preferably between 3kg and 4kg or between 5kg and 6kg.
  • the adsorption module preferably contains between 3kg and 4kg zeolite, more preferably about 3.55kg, and when using silica gel preferably between 5kg and 6kg silica gel, more preferably about 5.85kg.
  • the adsorption module contains as adsorbent a silica gel, also called silica gel, and / or a zeolite.
  • a silica gel also called silica gel
  • the silica gel 123, 125 and / or 127 and the zeolite 13X are advantageous here.
  • Salts are preferably incorporated into the silica gel, for example calcium chloride hexahydrate, in order to obtain a so-called selective water sorbent (SWS) as the adsorbent.
  • SWS selective water sorbent
  • the adsorbent may be in the form of a bed in a fixed bed reactor.
  • a lye container inlet heating element which is arranged in a lye container inlet line to heat the process air immediately before entering the tub, and / or an adsorption module inlet heating element is provided, which is arranged in a Adsorptionsmodulzulauftechnisch to the process air immediately before entry to heat in the adsorption module.
  • an adsorption module heating element which is set up to bring the adsorption module to the desorption temperature necessary for the desorption process.
  • the adsorption module is optionally arranged together with the adsorption module inlet heating element between the fan and the tub or the tub inlet heating element, preferably so that the process air passing out of the tub flows through first the condenser, then the fan and then the adsorption module and finally returned to the tub.
  • existing washer-dryers can preferably also be retrofitted with an adsorption module.
  • FIG Fig. 1 The course of a conventional drying process in a washer-dryer according to the prior art will be described with reference to the schematic representation in FIG Fig. 1 explained.
  • a cycle process is illustrated by means of the broad arrows which schematically represent the flow of a process air 7 between main components of the washer dryer.
  • drier process air 7 flows into the tub 1 and removes moisture from the laundry.
  • the cooled and moist process air 7 due to this process flows to the condenser 3, where it continues to cool and the moisture partially condenses out.
  • the process air 7 is then passed to a heating element 5, which heats the process air 7. This reduces the relative humidity of the process air 7.
  • a blower 6 the warm dry process air 7 is again supplied to the tub 1.
  • the resulting cycle is maintained until the laundry in the tub 1 has reached the desired degree of dryness and the drying process is completed.
  • the condenser 3 may also be replaced by a heat pump system (not shown), which is a combination of an evaporator and a condenser. Then is spoken by a heat pump condenser dryer or by a condensation dryer, which works on the principle of the heat pump. Also in all embodiments of the invention described above or below, such a heat pump system can be used.
  • the circuit comprises the tub 1, in which the washing drum 11 is rotatably mounted, the condenser 3, the fan 6 and an adsorption module 2, which is filled with an adsorbent.
  • the components within the dashed frame 71 are those in the conventional washer-dryer Fig. 1 already existing components.
  • a condenser feed line 43 leads to the condenser 3.
  • a liquor feed line 41 carries the process air to the tub 1 and an adsorption module supply line 42 to the adsorption tank 2.
  • These lines 41, 42, 43 may be partially ducts, tubes or hoses , However, the term line may also simply mean any kind of structure which causes the process air 7 to be directed along a desired path to the respective component 1, 2, 3 of the washer dryer.
  • a tub inlet heating element 51 and an adsorption module inlet heating element 52 are provided.
  • the suds container inlet heating element 51 serves to heat the process air 7 emerging from the adsorption module 2 before it flows into the suds container 1. This is necessary in a drying phase, when the temperature increase achieved due to the adsorbent used is not sufficient to dry the laundry efficiently. In the drying phase, therefore, the fan 6, the condenser 3, the adsorption module 2 and optionally the suds container inlet heating element 51 are active.
  • the initially moist process air 7 is passed through the condenser feed line 43 to the condenser 3, where it cools as in a conventional dryer.
  • the adsorption module 2 the residual moisture from the process air 7 is adsorbed on the adsorbent and the process air 7 undergoes a temperature elevation. If the temperature of the process air 7 after the temperature stroke is sufficient to effectively remove moisture from the laundry in the tub 1, then the warm air that is now dry due to the adsorption process is passed through the liquor container supply line 51 into the tub 1, without being further heated. Otherwise, the Process air 7 heated by the liquor container inlet heating element 51 to the necessary temperature and enters the tub 1 a.
  • the dry laundry is usually removed by the user from the washing drum 11 and either immediately after, or but after some time, for example, after a few hours, days or even weeks a new load on laundry placed in the washing drum 11.
  • a washing phase is initiated.
  • the laundry is heated by means of a arranged below the tub heating element and brought to the desired or required washing temperature. In the present case, this instead takes place by means of the process air 7 emerging from the adsorption module 2.
  • the process air 7 was first heated to the required desorption temperature by means of the adsorption module inlet heating element 42. This is about 150 ° C for silica gel and about 300 ° C for zeolite.
  • the hot dry process air 7 then flows through the adsorption module 2 and absorbs the moisture stored in the adsorbent in a desorption process. As a result, the process air 7 is cooled slightly and at the same time moister.
  • the moist process air 7 from the adsorption module 2 is then passed through the tub container feed line 41 into the tub 1. There condenses the moisture from the process air to the laundry, on the walls of the tub 1 and the washing drum 11. Due to this condensation process condensation heat is released, which heats the laundry.
  • the desorption process ends when the adsorbent is completely dry, that is, when the adsorption module 2 is completely regenerated, or when the laundry has reached the desired wash temperature, so that the washing process can begin. If the adsorbent still contains moisture, the desorption process can be repeated within the wash phase to warm the wash.
  • the Fig. 3 is from the Fig. 1 with the addition of an adsorption module 2 emerged. It is shown here, as the basis of the Fig. 1 described conventional drying process by inserting an adsorption module 2 to develop a drying process according to the invention.
  • the adsorption module 2 is inserted between the blower 6 and the tub 1. If the temperature of the adsorption module 2 is not sufficient, then a further heating element between the adsorption module 2 and the tub 1 can be additionally arranged.
  • FIG. 4 a cross-sectional view of an adsorption module 2.
  • the adsorbent particles 211 from the adsorbent are in this case put together to form a body 21 which extends between an entrance plane 22 and an exit plane 23 extends.
  • the distance between the two mutually parallel planes 22, 23 forms the body thickness.
  • an entrance slit 224 is arranged, which is connected to an air inlet 26 and bounded by the body 21 and a first module inner wall 24.
  • the process air 7 conducted into the adsorption module 2 enters the inlet gap 224 through the air inlet 26 at the lower end of the adsorption module 2. From there it flows through the inlet plane 22 through the adsorbent. Depending on the degree of loading of the adsorbent and the temperature of the process air 7, an adsorption process or a desorption process takes place here. Subsequently, the process air 7 flows through the outlet plane 23 into the outlet gap 235 and from there to the outlet 27, through which it leaves the adsorption module 2.
  • the adsorption module 2 is not necessarily reproduced to scale here. In fact, the ratio between the height and the width of the adsorption module is preferably 0.15 to 0.25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP16020147.1A 2015-05-06 2016-04-19 Laveuse sécheuse et méthode pour une laveuse sécheuse Withdrawn EP3091120A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015107063.4A DE102015107063A1 (de) 2015-05-06 2015-05-06 Waschtrockner und Verfahren zum Betreiben eines Waschtrockners

Publications (1)

Publication Number Publication Date
EP3091120A1 true EP3091120A1 (fr) 2016-11-09

Family

ID=55794851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16020147.1A Withdrawn EP3091120A1 (fr) 2015-05-06 2016-04-19 Laveuse sécheuse et méthode pour une laveuse sécheuse

Country Status (2)

Country Link
EP (1) EP3091120A1 (fr)
DE (1) DE102015107063A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4108823A1 (fr) * 2021-06-21 2022-12-28 Whirlpool Corporation Machine de séchage dotée d'un tamis dans le circuit de séchage

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005004096A1 (de) * 2004-12-09 2006-06-14 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einer Sorptionstrockenvorrichtung
DE102007031481A1 (de) 2007-07-06 2009-01-08 BSH Bosch und Siemens Hausgeräte GmbH Waschtrockner
DE102008039889A1 (de) * 2008-08-27 2010-03-04 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit Sorptionstrockenvorrichtung
EP2315547B1 (fr) 2008-07-28 2013-01-30 BSH Bosch und Siemens Hausgeräte GmbH Procédé de fonctionnement d'un appareil électro-ménager fonctionnant avec de l'eau
EP2439329B1 (fr) 2010-10-08 2013-03-06 Miele & Cie. KG Lave-sèche-linge doté d'une unité de séchage
DE102012221830A1 (de) * 2012-11-29 2014-06-05 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrockner und Verfahren zum Betreiben eines Wäschetrockners
DE102012223776A1 (de) * 2012-12-19 2014-06-26 BSH Bosch und Siemens Hausgeräte GmbH Sorptionsvorrichtung für ein Haushaltsgerät sowie entsprechendes Haushaltsgerät

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626887A1 (de) * 1986-08-08 1988-02-11 Miele & Cie Waeschebehandlungs- und spuelgeraet, herd o. dgl., mit einer entfeuchtungseinrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005004096A1 (de) * 2004-12-09 2006-06-14 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit einer Sorptionstrockenvorrichtung
DE102007031481A1 (de) 2007-07-06 2009-01-08 BSH Bosch und Siemens Hausgeräte GmbH Waschtrockner
EP2315547B1 (fr) 2008-07-28 2013-01-30 BSH Bosch und Siemens Hausgeräte GmbH Procédé de fonctionnement d'un appareil électro-ménager fonctionnant avec de l'eau
DE102008039889A1 (de) * 2008-08-27 2010-03-04 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit Sorptionstrockenvorrichtung
EP2439329B1 (fr) 2010-10-08 2013-03-06 Miele & Cie. KG Lave-sèche-linge doté d'une unité de séchage
DE102012221830A1 (de) * 2012-11-29 2014-06-05 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrockner und Verfahren zum Betreiben eines Wäschetrockners
DE102012223776A1 (de) * 2012-12-19 2014-06-26 BSH Bosch und Siemens Hausgeräte GmbH Sorptionsvorrichtung für ein Haushaltsgerät sowie entsprechendes Haushaltsgerät

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4108823A1 (fr) * 2021-06-21 2022-12-28 Whirlpool Corporation Machine de séchage dotée d'un tamis dans le circuit de séchage

Also Published As

Publication number Publication date
DE102015107063A1 (de) 2016-11-10

Similar Documents

Publication Publication Date Title
EP2110473B1 (fr) Sèche-linge doté d'un tambour aéré
EP1968424B1 (fr) Appareil ménager pourvu d'un appareil d'adsorption et procédé de fonctionnement d'un tel appareil ménager
EP2682041B1 (fr) Lave-vaisselle
EP2439329B1 (fr) Lave-sèche-linge doté d'une unité de séchage
DE212014000213U1 (de) Waschmaschine
DE102013111491B4 (de) Bekleidungstrockner und Betriebsverfahren eines Bekleidungstrockners
EP2301409B1 (fr) Lave vaisselle avec élément de sorption et l'introduction de l'air
WO2014082825A1 (fr) Sèche-linge et procédé pour faire fonctionner un sèche-linge
WO2010028992A1 (fr) Séchoir équipé d’un filtre à peluches et d’un dispositif de nettoyage
EP2286708B1 (fr) Lave-vaisselle doté d'un support de sorption et de circuits de condensation et de séchage au moins partiellement divisés
WO2009007289A1 (fr) Sèche-linge
DE102007016078A1 (de) Hybridtrockner und Verfahren zum Betreiben eines solchen Hybridtrockners
EP3084061B1 (fr) Dispositif et procédé permettant d'utiliser la chaleur des eaux usées d'une machine de traitement du linge
EP3091117B1 (fr) Seche-linge et procede de fonctionnement d'un seche-linge
DE19504034C2 (de) Waschtrockner
EP3091120A1 (fr) Laveuse sécheuse et méthode pour une laveuse sécheuse
EP2394730B1 (fr) Procédé de séchage d'un bien et appareil ménager doté d'un dispositif d'adsorption
DE102016107884A1 (de) Waschtrockner und Verfahren zum Betreiben eines Waschtrockners
DE102012201763B3 (de) Haushalts-Großgerät
DE102015107051B4 (de) Waschtrockner und Verfahren zum Betreiben eines Waschtrockners
EP3361000A1 (fr) Dispositif de déshumidification, appareil électrique comprenant un tel dispositif et procédé de déshumidification
EP3091118A1 (fr) Laveuse sécheuse et méthode pour opérer une laveuse sécheuse
DE102011008501B3 (de) Wärmerückgewinnungseinheit zum Anbau an eine offene Finisher-Vorrichtung sowie offenes Finisher-System mit einer solchen Wärmerückgewinnungseinheit
EP2248456B1 (fr) Appareil ménager, notamment lave-vaisselle
DE102016107887A1 (de) Waschtrockner und Verfahren zum Betreiben eines Waschtrockners

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170510