EP1294975B1 - Procede et dispositif de sechage sans repassage d'un article humide, en particulier d'un linge humide - Google Patents

Procede et dispositif de sechage sans repassage d'un article humide, en particulier d'un linge humide Download PDF

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Publication number
EP1294975B1
EP1294975B1 EP01955214A EP01955214A EP1294975B1 EP 1294975 B1 EP1294975 B1 EP 1294975B1 EP 01955214 A EP01955214 A EP 01955214A EP 01955214 A EP01955214 A EP 01955214A EP 1294975 B1 EP1294975 B1 EP 1294975B1
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EP
European Patent Office
Prior art keywords
drying
air
treatment room
steam
condenser
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.)
Expired - Lifetime
Application number
EP01955214A
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German (de)
English (en)
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EP1294975A2 (fr
Inventor
Hans Baltes
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.)
Multitroc Patentverwertungsgesellschaft Mbh &
Original Assignee
Multitroc Patentverwertungsgesellschaft Mbh & Co KG
MULTITROC PATENTVERWERTUNGSGMB
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Publication date
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Publication of EP1294975A2 publication Critical patent/EP1294975A2/fr
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Publication of EP1294975B1 publication Critical patent/EP1294975B1/fr
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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
    • D06F58/10—Drying cabinets or drying chambers having heating or ventilating means

Definitions

  • the invention relates to a method for drying moist material, in particular of damp laundry, according to the preamble of claim 1.
  • the drying of laundry is one of various technical facilities problem solved many times.
  • Fresh air is currently mainly used for drum dryers used, into the laundry to be dried after the wash cycle and then with heating and simultaneous mechanical rotation with warm Air is applied.
  • the laundry is subject to a high level in these drum dryers mechanical stress at high temperatures, which makes the Laundry fibers i. d. R. are severely damaged. This leads to matting the clothes and shrinkage of the laundry items, making the laundry unusable overall can be. Drying the laundry in tumble dryers is therefore problematic and leads even if the laundry is properly handled in the tumble dryer with frequent repetitions to reduce the quality of the laundry.
  • a drying cabinet to design that hanging in it by means of a warm air blower gentle and can be dried without mechanical stress.
  • a drying cabinet is the laundry in a hanging arrangement introduced and dried by warm air supplied from outside. hereby the mechanical load on the laundry during drying is reduced to zero, however is due to the high humidity coming out of the drying cabinet provided warm air an operation of such a drying cabinet only at one Exhaust air routing to the outside possible.
  • the object of the present invention is therefore a Developing methods for drying in such a way that the laundry without, if possible subsequently necessary ironing operations are dried and also an operation the drying cabinet is possible without additional exhaust air routing.
  • the invention is based on a method for drying moist material, in particular of damp laundry in which the goods are in a treatment room Drying cabinet is treated in a mechanically immobile state, taking air through the treatment room and via a cooling system from an external air circuit Condenser is guided and the moisture contained in the air precipitate the condenser and can be dissipated.
  • This generic Process is further developed in that the air at least during a Period of drying of the goods with the condenser switched off a closed internal cycle through the treatment room over the still moist, to be dried material is guided, the material suspended by means of a hanging device with increasing Temperature in the treatment room circulating with the air and at least partially formed from the moisture of the goods vapor or exposed to increased humidity at a maximum temperature between 90 and 125 ° C and by the steam or the increased humidity in relation to wrinkles, Wrinkles or the like from previous treatments is relaxed and smoothed.
  • the air at least during a Period of drying of the goods with the condenser switched off a closed internal cycle through the treatment room over the still moist, to be dried material is guided, the material suspended by means of a hanging device with increasing Temperature in the treatment room circulating with the air and at least partially formed from the moisture of the goods vapor or exposed to increased humidity at a maximum temperature between 90 and 125 ° C and by the steam or the increased humidity in relation to wrinkles, Wrinkles or the like
  • Treating the goods like a steam shower acts by relaxing the fibers of the goods, causing creases, wrinkles or the like, gradually similar to a steam shot of an iron reform and the goods are then dried in a smooth state. This eliminates the need for a separate ironing treatment after drying great time savings can be achieved.
  • By generating the steam or the increased air humidity results from the moisture of the goods even when introduced there is also the advantage that this moisture is already removed from the goods and this is accompanied by drying of the goods. So in the phase of Heating the treatment room essentially only the introduction of heat in the treatment room required the introduction of steam from an external Source does not have to be done.
  • a particularly good ratio of distance of creases and folds related to the drying time can be achieved if the maximum temperature of air and / or steam or increased humidity during the phase of the transfer of the steam or the increased air humidity about the material inside the treatment room between 90 and 125 ° C is.
  • a first advantageous embodiment of the method provides that during the formation the temperature in the treatment room is increased. This causes the steam or the increased humidity obtained from the residual moisture in the goods by evaporating the residual moisture or evaporates and passes into the air circulated in the treatment room. Depending on the temperature, the circulated air can be different Absorb amounts of moisture or steam, so that when increasing the Temperature a significant part of the residual moisture of the goods already in the converted air passes over.
  • the associated drying effect of the goods with simultaneous formation of the necessary to remove creases and wrinkles Steam increases the economics of the process by reducing energy costs.
  • Another advantageous embodiment of the method provides that the condensation delayed after the start of drying and the formation of steam or the increased humidity. This can be achieved that especially at the beginning of drying a very steam or increased humidity saturated volume flow circulates through the treatment room, which the creases and folds of the goods are reliably eliminated.
  • the transition from the closed circuit the steam or the increased humidity is transferred via the Good for the phase of increasing removal of air humidity from the treatment room by means of condensation on the capacitor.
  • You can a particularly gentle treatment of the goods in the treatment room for removal of creases and wrinkles with a gentle drying phase combine, ensuring a safe removal of creases and wrinkles good and gentle drying of the goods can be achieved at the same time.
  • the steam or the increased air humidity at least is sometimes also supplied to the treatment room from an external source. This can result in additional steam or a larger one using the external source Amount of steam can be supplied to the goods in a shorter time without the generation due to steam or increased humidity inside the treatment room high temperatures can damage the goods.
  • Another improvement when using a drying cabinet to carry out the method according to the invention can be achieved by following the transition phase the steam or the increased air humidity and at or after the Drying the goods in an open circuit in the same treatment room Influence of outside air supplied from another treatment such as further drying, disinfection, sterilization, removal of pollutants or the like.
  • This allows both the drying treatment with the achievement of a non-iron drying of the Good with further possibly necessary steps of the treatment of the good as well disinfecting the goods, for example in hospitals or one Combination of pollutants in freshly produced items combined become.
  • the estate no longer has to be sufficient for such combination treatments the treatment room can be reloaded into another device, but can be directly remain in the treatment room and continue to be treated there.
  • the treatment in an open cycle is always necessary if z. B. volatile Components are to be removed or a process control in the closed Cycle would cause excessive stress on the goods.
  • the temperature can be reduced by adding ambient air to the treatment room be reduced in the treatment room, so that in addition to the possible further treatment of the goods in the open circuit also a shorter cooling can be reached from the drying phase.
  • a drying cabinet to carry out the process according to claim 1 has a lockable to the environment treatment room on, through the air with steam or increased humidity in a closed circuit and can be conducted via a capacitor and the moisture contained in the air condenses on the condenser and into one Collecting container can be removed, the condenser being able to be cooled by a flow of cooling air which is sucked in from the ambient air.
  • cooling air flow between the outer walls the treatment room and the outer wall of the drying cabinet is guided along the outer wall of the drying cabinet against heat loads to cool out of the treatment room.
  • a drying cabinet has to switch the Operation of the drying cabinet between circulation in a closed circuit and open circuit treatment flaps on the drying cabinet on, the supply and removal of outside air to and from the treatment room enable.
  • the flaps can be time and / or temperature controlled and / or open depending on the drying condition of the goods and close.
  • Such a configuration of a drying cabinet enables one Combined and automated operation both in a closed circuit and also in an open cycle and therefore offers various uses of the same device. This can be avoided, for example, for the Disinfection or sterilization must be purchased as a separate device Disinfection or sterilization usually takes place in an open circuit, the inventive Drying in a closed cycle.
  • a particularly preferred embodiment of a drying cabinet the drawing shows how to carry out the method according to the invention.
  • the drying cabinet 1 for carrying out the method according to the invention is in a first configuration in FIGS. 1 to 3 shown, in which a drying of the only schematically indicated goods 2 takes place inside the treatment room 15 of the drying cabinet 1.
  • the Well 2 laundry items indicated here, depends on unspecified and basically known suspension devices 3, which are approximately horizontal inside the treatment room 15 of the drying cabinet 1 are attached.
  • the basic one Structure and the air duct of the drying cabinet 1 according to Figure 1 corresponds that from the patent specification DE 42 35 560 C2 of the same inventor.
  • the treatment room 15 is a fan 5 for the hot air flow 10, 10 'indicated that the hot air flow 10 via a corresponding radial fan Air ducts in ducts 20, one approximately vertically the treatment room Form 15 limiting air flow.
  • these channels 20 are open to the inside of the treatment room 15 laterally provided inlet openings 19 through which in the hot air flow 10 laterally and from both sides of the drying cabinet 1 each other countercurrently can enter the interior of the treatment room 15. This ensures thorough mixing of the interior of the treatment room 15 reached with the hot air flow 10 through which the material 2 can give off moisture.
  • the warm air flow 10 is through after passing through the treatment room 15 a perforated lower wall 14 fed to a capacitor 13 and with a cold air flow in this condenser 13 explained in more detail in thermal connection brought. After passing through the heat exchanger 13, the cooled one flows Warm air flow 10 'through an air duct 11 on the back of the drying cabinet 1 back up towards the blower 5 and there again blown into the interior of the treatment room 15 as already described.
  • This Air flow of the warm air flow 10, 10 'conducted in a closed circuit enables the particularly advantageous drying in a manner described in more detail of goods 2 in such a way that post-treatment by ironing can be avoided can.
  • the capacitor 13 below the treatment room 15 is equipped with a first one Cold air stream 8 and cooled with a further cold air stream 8 'and thereby leads to Condensing the moisture content contained in the hot air stream 10.
  • the a cold air flow 8 ' is in this case via an inlet opening 6 in the vicinity of the condenser 13 sucked in from the surroundings, with a below the condenser 13
  • Radial fan in the form of a fan 4 causes a corresponding air flow.
  • the fan 4 pushes the cold air flow 8 in the base region via an outlet opening 7 the drying cabinet 1 again.
  • the other part 8 'of the cold air flow is also sucked in from the environment above the treatment room 15 and through air channels arranged between the side walls 18 and the channel 20 12 led down towards the fan 4.
  • This air duct serves to ensure that the surfaces of the drying cabinet 1, that of operators can be touched, cooled at the same time, so that these otherwise cannot burn hot surfaces.
  • the cold air flow 8 'takes in this case the temperature prevailing on the outside of the air channels 20 from the Warm air flow 10 from.
  • the sump 9 for the condensed Liquid that is generously sized and easy to transport the collected liquid in a spout or the like. Also without spillover the sump 9 allows.
  • the dried out of the good 2 Liquid is collected here and after the drying cycle has ended taken by the operator.
  • Two flaps 21, 22 can be seen in the upper region of the drying cabinet 1, of which the flap 22 is an outlet flap for the hot air flow 10 in the open Represents circuit, which is explained in more detail in Figures 4 and 5.
  • this flap 22 is closed, so that the warm air flow 10 after passing through the duct 11 again to the fan 5 is fed.
  • the flap 21 serves to close the air supply for the cold air flow 8 ', in the upper section of the drying cabinet 1 between the treatment room 15 and the side walls 18 of the drying cabinet 1 enter and after can be promoted below by the fan 4.
  • drying cabinet 1 The operation of the drying cabinet 1 according to the method of the invention describe themselves as follows. For example, from a previous one Washing cycle still wet laundry 2 is on the hangers 3 in the Interior of the treatment room 15 hung, the dense occupancy of the Treatment room 15 with items 2 a very good volume utilization of the drying cabinet 1 can be reached. Of course, it is also conceivable here not previously washed, but only due to environmental pollution or Like. bring in damp or otherwise wrinkled laundry or the like, which in should be in a non-iron and dry condition. Example of such A variety of items such as household items can be used delicate fabrics, pure wool, duvets, pillows, duvets, woolen blankets, Leather shoes and any other items that are exposed to moisture subject or should be moistened for cleaning purposes.
  • the front door 16 of the Drying cabinet 1 closed and the drying cabinet 1 in a first operating state switched, in which the heating elements 24 and the fan 5 for the Warm air flow 10, 10 'are put into operation.
  • the air flow is in the above already described here in a closed circuit so that the Warm air flow 10, 10 'after entering the interior of the treatment room 15 via the condenser 13 and through the channel 11 upwards within the drying cabinet 1 is funded.
  • the capacitor 13 can in this operating state already by cooling with the cold air flow 8, 8 'and actuating the fan 4 be in operation so that immediately when the treatment room is heated 15 can already draw moisture from the interior of the treatment room 15.
  • the condenser 13 is not yet in operation, so that no cold air flow 8, 8 'in the condenser 13 with the hot air flow 10, 10' brought into contact becomes. It is favorable, for example, only after a certain heating-up time to put the capacitor 13 into operation so that a high proportion of Humidity in the hot air stream 10, 10 'results and the goods 2 therefore quickly can be relaxed without creasing.
  • the effect of the hot air flow 10, 10 'in this phase of the process is based insist that when touched z.
  • textile materials with a steam flow the fibers of these textile materials can be relaxed and thereby any existing Wrinkles, folds or similar non-smooth spots even without mechanical action be eliminated.
  • This effect is basically from the area of ironing technology known, for example, on the iron as an additional function Steam showers are attached to the the ironer before mechanical contact the iron can be applied to specific areas to be ironed and the a pre-wetting and thus the relaxation of the tissue already described cause.
  • the closed cycle of Drying cabinet 1 for carrying out the method according to the invention has the great advantage that the drying cabinet 1 no moist exhaust air flow emerges.
  • This moist exhaust air flow causes, for example possible moisture damage inside when installed in an apartment the room and must therefore, as a rule, through an appropriate exhaust air duct be disposed of outdoors.
  • the condensate forming on the condenser 13 is from corresponding capacitor devices from the capacitor 13 in one Collection container 9 passed and can be there after the drying process collected together.
  • Another advantage of the operating mode of the drying cabinet shown 1 is that the steam is partially or completely out of moisture of the dry good 2 itself is obtained, whereby on the one hand a partial Drying of the material 2 is achieved during the extraction of the steam and therefore the drying time is reduced overall.
  • Second is one Operation advantageous with regard to the amounts of energy to be used, since a external steam generation can be avoided, for example, by a steam generator and the energy for extracting the steam is at the same time a drying effect causes.
  • FIGS. 4 and 5 show the structure of the drying cabinet 1 in FIGS 3 corresponding operating state of the drying cabinet 1 is shown, in which about an additional processing step after completion of the drying process such as disinfection, ventilation or the like is connected, in which the drying cabinet 1 is operated in an open circuit.
  • the one for this Operating condition already known air duct according to DE 42 35 560 C2 of such a drying cabinet is shown in the invention shown here Realized in the same drying cabinet 1 in that the exhaust flap 22 for the hot air flow 10 is now opened, as shown in FIG. 5 can be seen.
  • the hot air flow 10 ' can be wholly or partly in the Environment are derived so that after entering the interior of the treatment room 15 of the warm air flow 10 'is wholly or partly discharged.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)

Claims (8)

  1. Procédé pour le séchage d'un article humide (2), plus particulièrement d'un linge humide, par lequel un article (2) placé dans l'espace de traitement (15) d'une armoire de séchage (1) est traité dans un état d'immobilité mécanique, pendant que l'air (10) circule dans l'espace de traitement (15) et passe au-dessus d'un condensateur (13) refroidi par un cycle d'air extérieur et l'humidité contenue dans l'air (10) peut se déposer au condensateur (13) et être évacuée,
    caractérisé en ce que
    l'air (10) circule, au moins pendant une période de séchage de l'article (2), lorsque le condensateur est à l'arrêt dans un cycle interne fermé par l'espace de traitement (15) au-dessus de l'article à sécher (2) encore humide, tandis que l'article (2) pendu au moyen d'un dispositif de suspension (3) est, pendant qu'une augmentation de la température dans l'espace de traitement (15), exposé à une vapeur ou plutôt à une humidité élevée de l'air, naissante circulant en cycle avec de l'air (10) provenant au moins partiellement de l'humidité propre à l'article (2), d'une température maximale allant de 90 à 125° C et de par la vapeur ou plutôt de par l'humidité élevée de l'air, l'article (2) se retrouve détendu et défroissé en relation de pli, froissure ou de même du traitement précedé,
    et avec l'élimination progressive de l'humidité restante de l'air (10) après le début de condensation au condensateur (13), l'article (2) est séché, sans froissement, sans pli ou similaire et n'a pas besoin d'être repassé.
  2. Procédé selon la revendication 1, caractérisé en ce que pendant la formation de vapeur ou plutôt d'une humidité élevée de l'air, la température est augmentée dans l'espace de traitement (15).
  3. Procédé selon une quelconque des revendications 1 ou 2, caractérisé en ce que la condensation commence avec un décalage après le début du séchage et de la formation de vapeur ou plutôt d'une humidité élevée de l'air.
  4. Procédé selon une quelconque des revendications précédentes, caractérisé en ce que la transition du passage intervenant dans un cycle fermé de la vapeur ou plutôt d'une humidité élevée de l'air à l'article (2) à la phase de diminution progressive de l'humidité de l'air hors de l'espace de traitement (15) à l'aide de la condensation au condensateur (13) se fait de manière mobile.
  5. Procédé selon une quelconque des revendications précédentes, caractérisé en ce que la température de l'air (10) et/ou la vapeur ou plutôt une humidité élevée de l'air après le passage au condensateur (13) en fonctionnement est d'environ 60 - 70° C maximum.
  6. Procédé selon une quelconque des revendications précédentes, caractérisé en ce que la vapeur ou plutôt une humidité élevée de l'air est également apportée en partie du moins par une source externe dans l'espace de traitement (15).
  7. Procédé selon une quelconque des revendications précédentes, caractérisé en ce qu'après la phase de transmission de la vapeur ou plutôt d'une humidité élevée de l'air et pendant ou après le séchage, l'article (2) est soumis à un traitement supplémentaire dans le même espace de traitement (15) dans un cycle ouvert sous l'influence de l'apport extérieur d'un air ambiant (23) de même qu'à un séchage, une désinfection, une stérilisation, une élimination de substances nuisibles ou autres supplémentaires.
  8. Procédé selon la revendication 7, caractérisé en ce que suite au mélange d'air ambiant (23) dans l'espace de traitement (15), la température dans l'espace de traitement (15) diminue.
EP01955214A 2000-06-28 2001-06-18 Procede et dispositif de sechage sans repassage d'un article humide, en particulier d'un linge humide Expired - Lifetime EP1294975B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10030531A DE10030531B4 (de) 2000-06-28 2000-06-28 Verfahren und Vorrichtung zur bügelfreien Trocknung von feuchtem Gut, insbesondere von feuchter Wäsche bzw. Kleidung
DE10030531 2000-06-28
PCT/DE2001/002219 WO2002000990A2 (fr) 2000-06-28 2001-06-18 Procede et dispositif de sechage sans repassage d'un article humide, en particulier d'un linge humide

Publications (2)

Publication Number Publication Date
EP1294975A2 EP1294975A2 (fr) 2003-03-26
EP1294975B1 true EP1294975B1 (fr) 2004-03-03

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EP01955214A Expired - Lifetime EP1294975B1 (fr) 2000-06-28 2001-06-18 Procede et dispositif de sechage sans repassage d'un article humide, en particulier d'un linge humide

Country Status (6)

Country Link
US (1) US6796055B2 (fr)
EP (1) EP1294975B1 (fr)
AT (1) ATE261012T1 (fr)
AU (1) AU2001277465A1 (fr)
DE (2) DE10030531B4 (fr)
WO (1) WO2002000990A2 (fr)

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DE3343236A1 (de) * 1983-11-30 1985-06-05 Hans 4600 Dortmund Baltes Verfahren und vorrichtung zum trocknen und sterilisieren von geweben, insbesondere von empflindlichen geweben
DE3632820A1 (de) 1986-09-26 1988-04-07 Hans Baltes Verfahren zum trocknen und sterilisieren von gut im geschlossenen kreislaufsystem
AU611983B2 (en) * 1987-11-12 1991-06-27 Thomas John Stubbing Method and apparatus for energy efficient drying
DE4235560C2 (de) * 1992-10-22 1995-08-10 Patent Und Innovationsagentur Verfahren zum Entgiften, Lüften, Trocknen und Sterilisieren von Geweben und dergleichen sowie Gerät zur Durchführung des Verfahrens
FR2745896B1 (fr) * 1996-03-07 1998-04-24 Armines Procede et installation de sechage d'une masse de matiere fibreuse humide, notamment d'une masse de linge
SE521337C2 (sv) * 1999-08-09 2003-10-21 Electrolux Ab Textiltvättmaskin med ångtorkning

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DE10030531B4 (de) 2004-08-26
WO2002000990A3 (fr) 2002-06-27
US20040064966A1 (en) 2004-04-08
DE10030531A1 (de) 2002-01-17
US6796055B2 (en) 2004-09-28
AU2001277465A1 (en) 2002-01-08
DE50101628D1 (de) 2004-04-08
ATE261012T1 (de) 2004-03-15
EP1294975A2 (fr) 2003-03-26
WO2002000990A2 (fr) 2002-01-03

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