WO2015003931A1 - Appareil ménager utilisant un agent déshydratant dans l'étape de séchage - Google Patents

Appareil ménager utilisant un agent déshydratant dans l'étape de séchage Download PDF

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Publication number
WO2015003931A1
WO2015003931A1 PCT/EP2014/063726 EP2014063726W WO2015003931A1 WO 2015003931 A1 WO2015003931 A1 WO 2015003931A1 EP 2014063726 W EP2014063726 W EP 2014063726W WO 2015003931 A1 WO2015003931 A1 WO 2015003931A1
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WO
WIPO (PCT)
Prior art keywords
receptacle
desiccant
household appliance
tub
air
Prior art date
Application number
PCT/EP2014/063726
Other languages
English (en)
Inventor
Yusuf YUSUFOGLU
Ali UNLUTURK
Yusuf Koc
Original Assignee
Arcelik Anonim Sirketi
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 Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Publication of WO2015003931A1 publication Critical patent/WO2015003931A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/48—Drying arrangements
    • A47L15/481—Drying arrangements by using water absorbent materials, e.g. Zeolith
    • 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 household appliance the energy consumption of which is decreased.
  • zeolite as the desiccant material, especially as the reversible desiccant material, is known for the aim of increasing the drying effectiveness and providing energy saving.
  • the dishwasher comprises a receptacle that houses the desiccant and that is connected to the washing tub with an inlet and an outlet.
  • the wash water is heated by operating the heater disposed in the vicinity of the receptacle in the main washing step.
  • the fan is operated and the air received from inside the washing tub is passed over the receptacle.
  • the desiccant releases the retained moisture and thus completes its regeneration.
  • the drying step the humid air sucked from the washing tub by means of the fan, is confined by the desiccant that has completed its regeneration in the main washing step while passing through the receptacle and that has become usable again.
  • the dehumidified processing air is directed to the washing tub again, thus creating an air circulation.
  • desiccants with higher moisture retaining capacity than the zeolite receptacles with larger volumes than the volume of the desiccant are used so as to compensate the increase in the volume after the moisture retaining process.
  • the drying performance of the household appliance is adversely affected if the desiccant does not homogeneously spread in the empty space in the receptacle and/or the humid air leaves the receptacle without contacting the desiccant.
  • the aim of the present invention is the realization of a household appliance the energy consumption of which is decreased.
  • the household appliance realized in order to attain the aim of the present invention, explicated in the first claim and the respective claims thereof, comprises a tub wherein items are placed for the purpose of drying and/or washing, an inlet port providing the entry of the processing air into the tub, an outlet port providing the exit of the processing air from the tub, a channel providing the formation of a closed air cycle between the inlet port and the outlet port, a receptacle disposed on the channel, a heater placed close to the receptacle, and a desiccant that is situated inside the receptacle and that is a super absorbent polymer.
  • the household appliance of the present invention comprises a fan that is situated on the channel in the same vertical axis as the receptacle and that provides air flow from the receptacle towards the inlet port. It is possible to retain the moisture contained in the processing air by using a smaller amount of super absorbent polymer, the moisture retaining capacity of which is high relative to their unit weights. For this reason, super absorbent polymers occupy less space in the receptacle compared to other desiccants known in the technique, for example the zeolite. As a result of the super absorbent polymer being subjected to an air flow in reverse direction compared to the gravity, the super absorbent polymer can flutter around in the empty volume inside the receptacle by spreading homogeneously. Thus, effectiveness of the moisture retaining process is increased. Moreover, the effectiveness of the drying process is improved by preventing the humid air from passing from the receptacle towards the outlet port thanks to the air resistance in the receptacle in reverse direction compared to the gravity.
  • the household appliance comprises at least one separator that is situated in the receptacle and that separates the receptacle into at least two divisions.
  • the separator By means of the separator, the receptacle is separated into divisions wherein air currents flow in directions different from each other, thus, the humid air passes over the receptacle in a gradual manner and with reduced flow speed.
  • the interaction time between the humid air with reduced flow speed and the desiccant is increased, thus improving the drying performance of the household appliance.
  • the desiccant is in powder form.
  • the movement and the moisture retaining capacity of the desiccant increase as the surface area thereof becomes smaller.
  • the desiccant retains moisture more easily.
  • the household appliance comprises an air-permeable, close porous sac that is situated in the receptacle and wherein the desiccant is filled.
  • the desiccant in powder or granule form can be easily placed into the receptacle and kept together in the receptacle.
  • the household appliance comprises a filter that is arranged on the inlet port and that prevents the desiccant from entering the tub.
  • the filter By means of the filter, the desiccant is prevented from being swept with the air current and from filling into the tub.
  • each particle of the desiccant is at least 1mm.
  • the desiccant can be easily kept on the filter without clogging the filter.
  • the regeneration temperature of the desiccant is between 50°C and 100°C.
  • the regeneration duration and the thermal energy required for regeneration decrease thanks to the property of the desiccant being able to be regenerated at low temperatures.
  • the need for using high temperature resistant components is eliminated and thus material cost is reduced.
  • the glass transition temperature of the desiccant is between 20°C and 40°C.
  • the moisture retaining capacity of the desiccant with high flexibility and low glass transition temperature is high.
  • the chamber has a flexible configuration.
  • the chamber can expand during desiccation to compensate the increased desiccant volume.
  • the receptacle is produced from a material with high thermal conductivity. Consequently, heat loss during heat transfer from the heater situated in the vicinity of the receptacle to the desiccant is decreased.
  • the heater is disposed at a place in the vicinity of the receptacle, in a direction perpendicular to the air flow.
  • Figure 1 – is the schematic view of the household appliance of the present invention.
  • the household appliance (1) comprises a tub (2) wherein the washing and/or the drying process is performed, an inlet port (3) providing the entry of air into the tub (2), an outlet port (4) enabling the air in the tub (2) to be discharged outside, a channel (5) extending between the inlet port (3) and the outlet port (4) so as to remain outside the tub (2), a receptacle (8) situated on the channel (5), a heater (7) disposed inside or in the vicinity of the receptacle (8), and a desiccant (9) that is situated inside the receptacle (8) and that is a super absorbent polymer.
  • the humid air received from the tub (2) by means of the inlet port (3) is carried inside the channel (5) and directed to the receptacle (8) containing the desiccant (9) by means of a fan (6).
  • Heat is emanated while moisture, carried by air, is bonded with the desiccant (9) due to the thermophysical property of the desiccant (9).
  • the air that is dehumidified and the temperature of which increases due to the heat emanated during dehumidification, is again directed into the tub (2).
  • the household appliance (1) of the present invention comprises a fan (6) that is situated below the receptacle (8), on the channel (5) and that provides air flow from the receptacle (8) towards the tub (2).
  • the fan (6) situated below the receptacle (8) provides an air flow in reverse direction compared to the gravity and enables the desiccant (9) to flutter around in the receptacle (8). Thanks to the air resistance in the receptacle (8) in reverse direction compared to the gravity, the humid air is prevented from leaking from receptacle (8) and returning to the outlet port (4) while the area the humid air contacts the super absorbent polymer is increased.
  • the household appliance (1) comprises at least one separator (10) that is situated in the receptacle (8) and that separates the receptacle (8) into at least two divisions.
  • the separator (10) By means of the separator (10), the receptacle (8) is separated into divisions that directs the air in a controlled manner, thus, the humid air passes over the receptacle (8) in a gradual manner and with reduced flow speed.
  • the separators (10) are positioned in the receptacle (8) so as to turn the air in the opposite direction.
  • the humid air with reduced speed is enabled to be passed over the desiccant (9) in a controlled manner and the interaction time thereof with the desiccant (9) is prolonged.
  • the desiccant (9) is in powder form.
  • the desiccant (9) moves in the receptacle (8) more easily as the surface area thereof becomes smaller.
  • the interaction area of the desiccant (9) with the humid air increases by the desiccant (9) in powder form moving by rotating with the effect of the air current.
  • the household appliance (1) comprises a porous sac with high air permeability that is situated in the receptacle (8) and wherein the desiccant (9) is filled.
  • the desiccant (9) in powder or granule form can be kept together in the receptacle (8).
  • the household appliance (1) comprises a filter (11) that is arranged on the inlet port (3) and that prevents the desiccant (9) from entering the tub (2).
  • the filter (11) By means of the filter (11), the desiccant (9) is prevented from filling into the tub (2) due to the air current from the receptacle (8) towards the tub (2).
  • the household appliance (1) comprises the desiccant (9), of which each particle is at least 1mm.
  • the desiccant (9) can be easily kept on the filter (11) without clogging the filter (11).
  • the regeneration temperature of the desiccant (9), which is a super absorbent polymer is between 50°C and 100°C.
  • the requirement for a powerful heater (7) is eliminated since the desiccant (9) is regenerated at low temperatures.
  • the need for using high temperature resistant materials is eliminated and material cost is decreased since the temperature the components near the heater (7) are subjected to during the regeneration process decreases.
  • the desiccant (9) is a super absorbent polymer with a moisture retaining capacity that is approximately fifty percent of its mass.
  • the use of a low weight desiccant (9) is sufficient and the material occupies less volume inside the receptacle (8).
  • the desiccant (9) moves freely in the receptacle (8) and the interaction of the humid air with the desiccant (9) is improved.
  • the glass transition temperature of the desiccant (9) is between 20°C and 40°C.
  • the desiccant (9) with low glass transition temperature has high flexibility and thus the porous structure can retain more moisture by expanding.
  • the receptacle (8) is formed from an elastic material.
  • the receptacle (8) provides a flexible volume for the desiccant (9) that increases in volume while retaining moisture.
  • the receptacle (8) is formed from a material with high thermal conductivity.
  • the heat transfer between the heater (7) situated in the vicinity of the receptacle (8) and the desiccant (9) inside the receptacle (8) is realized with less energy loss and the regeneration efficiency of the desiccant (9) increases.
  • the heater (7) is disposed near the receptacle (8) and in a direction perpendicular to the air flow.
  • the heater (7) starts operating simultaneously with the fan (6) during the regeneration process.
  • Heat transfer occurs by means of convection between the receptacle (8) and the heater (7) which is disposed perpendicular to the fan (6) and near the receptacle (8).
  • the heat is enabled to be distributed homogeneously inside the receptacle (8), the regeneration efficiency of the desiccant (9) and hence moisture retaining capacity in the next drying step increase by means of the homogeneous heat distribution.
  • the air flows into the receptacle (8) in reverse direction compared to the gravity thanks to the placement of the fan (6) below the receptacle (8) so as to be almost in the same vertical axis with the receptacle (8).
  • the desiccant (9) disperses and flutters around in the receptacle (8) and the drying effectiveness of the household appliance (1) is improved by increasing the interaction of the desiccant (9) with the humid air.
  • the effectiveness of the drying process is improved by preventing the humid air from passing from the receptacle (8) towards the outlet port (4) thanks to the air resistance in the receptacle (8) in reverse direction compared to the gravity.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Gases (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

La présente invention concerne un appareil ménager (1) comprenant une cuve (2) dans laquelle est réalisé le processus de lavage et/ou de séchage, un orifice d'entrée (3) formant l'entrée d'air dans la cuve (2), un orifice de sortie (4) permettant à l'air dans la cuve (2) d'être évacué à l'extérieur, un canal (5) s'étendant entre l'orifice d'entrée (3) et l'orifice de sortie (4) de façon à rester à l'extérieur de la cuve (2), un réceptacle (8) situé sur le canal (5), un élément chauffant (7) disposé à l'intérieur ou au voisinage du réceptacle (8), et un agent déshydratant (9) qui est situé à l'intérieur du réceptacle (8) et qui est un polymère superabsorbant.
PCT/EP2014/063726 2013-07-10 2014-06-27 Appareil ménager utilisant un agent déshydratant dans l'étape de séchage WO2015003931A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2013/08319 2013-07-10
TR201308319 2013-07-10

Publications (1)

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WO2015003931A1 true WO2015003931A1 (fr) 2015-01-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018086962A1 (fr) 2016-11-09 2018-05-17 Arcelik Anonim Sirketi Appareil électroménager comprenant un agent siccatif
WO2020064257A1 (fr) * 2018-09-28 2020-04-02 Arcelik Anonim Sirketi Unité de lavage/séchage du linge permettant de récupérer de l'air humide

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648484A1 (fr) * 1989-06-16 1990-12-21 Ciapem Seche-linge a rejet differe de l'humidite
JPH08224201A (ja) * 1995-02-22 1996-09-03 Sharp Corp 食器洗浄機
JPH0994388A (ja) * 1995-09-28 1997-04-08 Sharp Corp 全自動洗濯乾燥機
DE10065841A1 (de) * 2000-12-29 2002-07-25 Gerhard Bauer Verfahren und Vorrichtung zum Trocknen und/oder Polieren von Bestecken, Tafelgeschirr und Waren aus Glas und Porzellan für Haushalt und Küche
DE102008039895A1 (de) * 2008-08-27 2010-03-04 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit Sorptionstrockenvorrichtung
EP2353487A2 (fr) * 2010-02-01 2011-08-10 Samsung Electronics Co., Ltd. Lave-vaisselle
WO2013050468A1 (fr) * 2011-10-04 2013-04-11 Arcelik Anonim Sirketi Lave-vaisselle comprenant une unité de déshumidification

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2648484A1 (fr) * 1989-06-16 1990-12-21 Ciapem Seche-linge a rejet differe de l'humidite
JPH08224201A (ja) * 1995-02-22 1996-09-03 Sharp Corp 食器洗浄機
JPH0994388A (ja) * 1995-09-28 1997-04-08 Sharp Corp 全自動洗濯乾燥機
DE10065841A1 (de) * 2000-12-29 2002-07-25 Gerhard Bauer Verfahren und Vorrichtung zum Trocknen und/oder Polieren von Bestecken, Tafelgeschirr und Waren aus Glas und Porzellan für Haushalt und Küche
DE102008039895A1 (de) * 2008-08-27 2010-03-04 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine mit Sorptionstrockenvorrichtung
EP2353487A2 (fr) * 2010-02-01 2011-08-10 Samsung Electronics Co., Ltd. Lave-vaisselle
WO2013050468A1 (fr) * 2011-10-04 2013-04-11 Arcelik Anonim Sirketi Lave-vaisselle comprenant une unité de déshumidification

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018086962A1 (fr) 2016-11-09 2018-05-17 Arcelik Anonim Sirketi Appareil électroménager comprenant un agent siccatif
WO2020064257A1 (fr) * 2018-09-28 2020-04-02 Arcelik Anonim Sirketi Unité de lavage/séchage du linge permettant de récupérer de l'air humide

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