EP1579052A1 - Seche-linge et procede pour eliminer des odeurs de textiles - Google Patents

Seche-linge et procede pour eliminer des odeurs de textiles

Info

Publication number
EP1579052A1
EP1579052A1 EP03785843A EP03785843A EP1579052A1 EP 1579052 A1 EP1579052 A1 EP 1579052A1 EP 03785843 A EP03785843 A EP 03785843A EP 03785843 A EP03785843 A EP 03785843A EP 1579052 A1 EP1579052 A1 EP 1579052A1
Authority
EP
European Patent Office
Prior art keywords
process air
textiles
steam
dryer
clothes dryer
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Withdrawn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
EP03785843A
Other languages
German (de)
English (en)
Inventor
Harald MOSCHÜTZ
Andreas Ziemann
Ulrich Nehring
Kai Nitschmann
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1579052A1 publication Critical patent/EP1579052A1/fr
Withdrawn legal-status Critical Current

Links

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 
    • D06F58/203—Laundry conditioning arrangements

Definitions

  • the invention relates to a clothes dryer and a method for removing odors from textiles in a clothes dryer.
  • Textiles such as clothing, become odor-laden after a certain time due to body odors or environmental influences and must be washed or cleaned.
  • the manufacturers of detergent chemicals offer systems in which a damp, warm atmosphere is generated in a special plastic bag with the help of a damp cloth soaked in a cleaning agent, in particular surfactant, when drying in a tumble dryer. This is intended to remove the smells from the textiles and also to scent the textiles.
  • a disadvantage of this type of ventilation is the relatively cumbersome handling and the incomplete removal of the odorous substances.
  • the odorous substances remain in the bag with the textiles and are only incompletely bound by the surfactants contained in the cloth.
  • the textiles can often smell strongly of the cleaning agent after the treatment and there are additional costs for the cleaning cloth with each ventilation process.
  • a drying device for textiles is known from German utility model GM 7341276.
  • the drying device comprises a steam generator, which comprises a heating coil for evaporating water in the housing of the steam generator.
  • a steam generator which comprises a heating coil for evaporating water in the housing of the steam generator.
  • water vapor from the steam generator is conducted via a hose line into a box-like housing, partially made of a flexible film, in which textiles are suspended.
  • the disadvantage of this drying device is that it must have a very complex structure in order to enable an even distribution of the water vapor in the box-like housing.
  • the object of the invention is therefore to provide a clothes dryer and a method by means of which odors can be reliably and easily removed from textiles. Furthermore, the dryer should be easy to use and have a simple structure.
  • the invention is based on the knowledge that this object can be ideally achieved by a clothes dryer and a method in which water vapor extraction takes place directly in the drum of a clothes dryer and the supply of steam to the inside of the drum is connected to the process air supply.
  • a clothes dryer which comprises a rotatably mounted clothes drum for receiving and moving textiles, a process air duct for supplying process air into the clothes drum and a process air heater for heating at least the process air in the clothes dryer, the clothes dryer for removal of odorants from textiles has at least one processing unit for a liquid for generating fog or steam and the processing unit is connected to the process air duct.
  • odors can be effectively removed from textiles.
  • the process air duct via which process air is fed into the laundry drum, to the processing unit for the liquid in which steam or mist is generated, the process air can be thoroughly mixed with the steam or mist.
  • a reliable entry and a good distribution of the mist or the steam in the laundry drum can be achieved.
  • the fact that the textiles are held in a rotatably mounted laundry drum and are mixed when the drum rotates can result in excellent contact between the textiles and steam or mist.
  • water vapor extraction can be realized directly in the laundry drum and the odorants expelled from the textiles by water vapor extraction can leave the laundry drum with the process air.
  • the connection between the processing unit and the process air duct can be realized in that the processing unit is arranged in the process duct or is connected to it via a preferably very short duct.
  • the processing unit can be arranged directly in the process air duct.
  • the processing unit is preferably arranged directly in front of or in the outlet opening of the process air duct to the laundry drum. This position prevents the steam from condensing or the mist from settling on the walls before entering the washing drum.
  • the processing unit is an evaporator for evaporating liquid, in particular water.
  • water molecules are thus introduced into the laundry drum in the gas phase with the process air. These water molecules can bind odorants to them while the process air flows through the drum and the textiles moving in them and can thus be removed from the textiles.
  • the evaporator particularly preferably has a heating device which is formed by the process air heating of the clothes dryer.
  • the process air heating which is used in particular for heating the process air before entering the laundry drum, is basically already provided in clothes dryers.
  • the processing unit is an atomizer.
  • the process air heater is used to generate the Steam, which is necessary for the water vapor extraction of odorous substances from the textiles.
  • the atomizer delivers a mist that is introduced into the laundry drum with the process air and evaporated there.
  • the atomizer is preferably an ultrasonic atomizer.
  • the use of an atomizer has the advantage that the process of introducing the moisture into the laundry drum can take place at substantially lower temperatures than the boiling point of the water. The use of atomizers is therefore particularly advantageous for temperature-sensitive textiles.
  • the clothes dryer is preferably a clothes dryer of the condensate type and has a water supply line from a condensate collecting container for supplying the condensed water generated on a condenser to the processing unit.
  • a condensate collecting container for supplying the condensed water generated on a condenser to the processing unit.
  • the laundry drum can be followed by a filter for filtering out odorous substances.
  • downstream means the arrangement of the filter in the flow direction of the process air after the washing drum.
  • further components such as a condenser and / or a blower, to be provided between the washing drum and the filter.
  • the object on which the invention is based is achieved by a method for removing odorous substances from textiles in a tumble dryer, liquid being converted into steam in the tumble dryer, this steam being the textiles located in the tumble dryer of the tumble dryer and moving therein flows through and the steam is removed with the process air from the laundry drum.
  • the steam can be generated in an evaporator upstream of the laundry drum.
  • mist can be generated in an atomizer connected upstream of the washing drum, this can be introduced into the washing drum and steam can be generated from the mist in the washing drum.
  • Figure 1 is a schematic sectional view of a first embodiment of a clothes dryer according to the invention
  • Figure 2 is a schematic sectional view of a second embodiment of a clothes dryer according to the invention.
  • FIG. 1 shows a first embodiment of a clothes dryer 1 according to the invention.
  • the clothes dryer 1 is a condensation clothes dryer in this case.
  • a rotatably mounted laundry drum 2 is provided, which is used to hold textiles, in particular items of laundry 4, and can be loaded via a filling opening 3 provided on the front of the tumble dryer 1, which can be closed with a door.
  • a condenser 6 is indicated in the lower region of the clothes dryer 1.
  • the condenser 6 is arranged in a process air duct 5.
  • the process air duct 5 represents a circulating air circuit.
  • the process air duct 5 extends from the lower region of the filling opening 3 via the lower area of the clothes dryer 1 up to the rear, ie the side opposite the filling opening 3, of the washing drum 2.
  • a fan 7 is connected downstream of the condenser 6 in the process air duct 5, to which an odor filter 8 is connected.
  • a process air heater 9 is provided in the course of the process air duct 5.
  • the process air heater 9 comprises an evaporator 10, which is connected to a condensate collection container 13 via a water supply line 11 and a metering device 12.
  • the process air duct leads from the process air heater 9 directly to an outlet opening 51 of the duct 5 to the laundry drum 2.
  • This outlet opening 51 preferably has a cross section which is widened compared to the duct 5, so that the process air can be introduced evenly into the laundry drum 2.
  • the operation of the clothes dryer 1 is controlled and regulated via a control and regulating device 14, which can be located, for example, on the front side in the upper area of the clothes dryer behind a panel.
  • damp laundry 4 is put into the washing drum 2 via the filling opening 3.
  • the drum 2 is rotated and the laundry 4 is thus moved, in particular circulated.
  • the process air is set in motion by the blower 7.
  • the process air is guided along the process air heater 9 and then enters the drum 2 in a heated form, where it flows through the laundry items 4 moving therein and thereby absorbs moisture from them.
  • the moist process air is passed through the condenser 6, where the moisture is separated from the process air by condensation.
  • the condensed water is conveyed into a condensate collecting container 13 via a pump (not shown).
  • the tumble dryer 1 according to the invention is now to be used for ventilating textiles, in particular textiles which are not washable, then a certain part of the condensed water collected from the condensate collecting container 13 can be passed through the water supply line 11 to the evaporator 10 by the metering device 12 , The water is evaporated there and the water vapor generated in this way is passed together with the process air into the washing drum 2.
  • the evaporator 10 is designed with the process air heater 9 in one unit. In this case, the heating coil or other heat source of the process air heater 9 therefore simultaneously functions as a heating device for the evaporator 10.
  • FIG. 2 shows a further embodiment of a clothes dryer 1 according to the invention.
  • the tumble dryer 1 has essentially the same structure as the tumble dryer 1 shown in FIG. 1, in particular the tumble dryer shown in FIG. 2 is also a condensation tumble dryer. In the embodiment shown, however, no evaporator is provided. Instead, a metering device 16 is connected to the condensate collection container 13 via a water supply line 11. The dosing device 16 in turn interacts with an atomizer 15. In the embodiment shown, the atomizer 15 is arranged in the upper region of the outlet opening of the process air duct.
  • the tumble dryer is used for ventilation, a certain part of the condensed water collected in the condensate collecting container 13 can be fed to the atomizer 15 via the metering device 16.
  • a very fine-droplet mist is generated from the condensed water on this atomizer 15, which can in particular be an ultrasonic atomizer.
  • This fine-droplet mist is mixed with the process air that flows along the atomizer 15 and blown into the washing drum 2.
  • the process air which penetrates into the laundry drum 2 is continuously heated by the process air heater 9.
  • the very fine-droplet mist is thereby evaporated in the laundry drum 2, so that a water vapor atmosphere is created again.
  • the process air and the steam flow through the laundry 4, which is moved in the laundry drum 2, the odorous substances adhering to the textiles accumulate on the water vapor molecules and are removed together with the steam from the textiles.
  • the process air can be filtered after the moisture has been separated in the condenser.
  • the textiles After the textiles have been treated with steam, they can be subjected to a further drying process in the tumble dryer in order to remove any moisture that may have accumulated on the textiles.
  • the dryer is operated in normal operation, i.e. the metering device 12 or 13 does not deliver any condensed water to the evaporator 10 or the atomizer 15.
  • the ventilation process can be repeated several times with or without a subsequent drying process.
  • suitable scented towels for the dryer can be added to the drum at the same time as the laundry.
  • the dryer according to the invention can also represent an exhaust air clothes dryer.
  • a liquid reservoir will be provided into which water can be poured and from which water can be directed to the corresponding metering devices 12 or 16. If it is a water-carrying household appliance, in particular a washing machine-dryer combination, the metering device and thus the processing unit for liquid can also be supplied directly from the water supply line to the device.
  • the position of the processing unit in the tumble dryer is not limited to the positions shown. However, this is preferably in the rear part of the dryer, i.e. behind the laundry drum and near or in the outlet opening of the process air duct.
  • the steam generated in the evaporator 10 automatically mixes with the process air flowing through the process air heater.
  • the mist generated in the atomizer is passed on the one hand through the atomizer itself and on the other hand through the process air into the laundry drum.
  • an additional blower in the vicinity of the evaporator or the atomizer, by means of which the mist or the steam can be blown into the laundry drum.
  • an odor filter in the process air duct can be dispensed with, or the filter can be arranged in front of the blower 7 in the flow direction of the process air.
  • filters can be used as filters, a photocatalytic filter being particularly advantageous in the humid atmosphere.
  • the heat source of the process air heater has been used in the described embodiments to generate the steam which is fed into the laundry drum or is generated there for the water vapor extraction.
  • a separate heat source This can serve to heat the air in the laundry drum and thereby the evaporation process of fog in accelerate the drum.
  • the evaporator can be a separate unit in which the separate heating device is used to evaporate the water.
  • the evaporator is preferably arranged directly in front of the inlet opening of the process air channel 5 in the laundry drum, so that the steam emerging from the evaporator mixes with the process air when it enters the laundry drum 2 and condensation on tube walls leading to the laundry drum 2 lead can be avoided.
  • the method according to the invention can be carried out after the laundry has been subjected to a drying process or immediately after the laundry has been put into the tumble dryer. In particular, this means that the method according to the invention can be carried out on both cold and warm textiles.
  • a clothes dryer with a processing unit for liquids that creates a mist is advantageous.
  • the moisture can be introduced at significantly lower temperatures than when an evaporator is used.
  • the entry can take place at temperatures below the boiling point of water.
  • the textiles When using a processing unit for liquid, in which water vapor is generated, the textiles are generally colder than the moist, warm air blown into the washing drum. This can lead to the accumulation of moisture through condensation of steam on the textiles. As a rule, however, only a small amount of moisture accumulates without wetting the textiles.
  • the tumble dryer according to the invention and the method according to the invention it is therefore possible to remove odors from textiles in a simple and reliable manner without having to subject them to a washing process. Furthermore, additional materials, such as plastic bags and chemicals, for example cleaning chemicals, are not necessary in the invention. Finally, the invention Tumble dryers have a simple structure and there is the possibility of converting conventional tumble dryers into a tumble dryer according to the invention by means of minor structural measures.

Landscapes

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

Abstract

L'invention concerne un sèche-linge (1) comprenant agiter bouger des textiles (4), un canal d'air de traitement (5) pour acheminer de l'air de traitement dans le tambour contenant le linge (2) et un système de chauffage de l'air de traitement (9) pour chauffer au moins l'air de traitement dans ledit sèche-linge (1). Ledit sèche-linge (1) comporte également, pour éliminer les odeurs de textiles (4), au moins une unité de traitement (10, 15) pour un liquide destiné à produire un brouillard ou de la vapeur, ladite unité de traitement (10, 15) étant reliée au canal d'air de traitement (5). L'invention concerne en outre un procédé permettant d'éliminer des substances odorantes de textiles dans un sèche-linge. Un liquide est transformé en vapeur dans le sèche-linge (1), ladite vapeur traversant les textiles (4) qui se trouvent dans le tambour (2) du sèche-linge (1) et sont agités dedans. La vapeur est évacuée conjointement avec l'air de traitement hors du tambour contenant le linge (2).
EP03785843A 2002-12-20 2003-12-16 Seche-linge et procede pour eliminer des odeurs de textiles Withdrawn EP1579052A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10260151A DE10260151A1 (de) 2002-12-20 2002-12-20 Wäschetrockner und Verfahren zur Geruchsentfernung aus Textilien
DE10260151 2002-12-20
PCT/EP2003/014356 WO2004059070A1 (fr) 2002-12-20 2003-12-16 Seche-linge et procede pour eliminer des odeurs de textiles

Publications (1)

Publication Number Publication Date
EP1579052A1 true EP1579052A1 (fr) 2005-09-28

Family

ID=32404102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03785843A Withdrawn EP1579052A1 (fr) 2002-12-20 2003-12-16 Seche-linge et procede pour eliminer des odeurs de textiles

Country Status (4)

Country Link
US (1) US20070006484A1 (fr)
EP (1) EP1579052A1 (fr)
DE (1) DE10260151A1 (fr)
WO (1) WO2004059070A1 (fr)

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US20070006484A1 (en) 2007-01-11

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