EP1054094B1 - Dispositif de sèchage pour le linge - Google Patents

Dispositif de sèchage pour le linge Download PDF

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Publication number
EP1054094B1
EP1054094B1 EP00101138A EP00101138A EP1054094B1 EP 1054094 B1 EP1054094 B1 EP 1054094B1 EP 00101138 A EP00101138 A EP 00101138A EP 00101138 A EP00101138 A EP 00101138A EP 1054094 B1 EP1054094 B1 EP 1054094B1
Authority
EP
European Patent Office
Prior art keywords
inner drum
chamber
laundry
drying device
drum
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
EP00101138A
Other languages
German (de)
English (en)
Other versions
EP1054094A1 (fr
Inventor
Rudolf Küttelwesch
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.)
Mewa Textil Service AG and Co Management OHG
Original Assignee
Mewa Textil Service AG and Co Management OHG
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
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Publication of EP1054094A1 publication Critical patent/EP1054094A1/fr
Application granted granted Critical
Publication of EP1054094B1 publication Critical patent/EP1054094B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06F58/04—Details 
    • 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

Definitions

  • the invention relates to a drying device for laundry with an outer drum for the airflow used for moisture removal and with a inside rotating drum and perforated for air passage as Chamber for laundry storage.
  • Known drying devices of this type are single-drum machines with stationary ones Outer drum and one in a substantially horizontal Drum axis rotating driven inner drum.
  • the inner drum is there usually from a hollow cylindrical or tubular jacket made of perforated Stainless steel sheet, which at its inner axial end through a the inner drum rear wall forming, essentially aligned radially to the drum axis Stainless steel sheet is closed.
  • the front wall delimiting the other end differs from the back wall in that it has a central fill opening for the laundry item to be dried, which only after filling is closed by a door hinged to the outer housing.
  • the drying process is the one surrounding the item of laundry in the manner of a chamber Internal drum kept rotating to loosen up the laundry item and the laundry items of the laundry item as evenly as possible to the current exposed to the drying air.
  • the individual process steps run the drying process in the same inner drum one after the other. There are which is essentially shaking the previously dewatered into the inner drum imported laundry, their heating, their full drying and the before cooling necessary to remove laundry.
  • the cooling down is for safety reasons required because the drying process with up to approx. 150 ° hot air is carried out and only after the cooling process safe further handling the laundry.
  • the door for laundry removal may therefore only be removed be opened after cooling to a safe laundry temperature can. After loading with the new batch of laundry, the dryer is working again heated. All of this means loss of time and energy.
  • DE 1 610 236 B discloses the inner drum of a drying device by two, each extending over about half the drum circumference, to form independent drum half-shells, the interior of a each half-shell by partitions in several lying side by side in the axial direction Compartments is divided.
  • this known drying device is a these half-shells for transporting the items to be cleaned from the chamber Chamber displaceable in the axial direction.
  • the displacement length corresponds to the Width of a compartment.
  • the inner drum is on your for easy unloading provide a free opening on the front end facing away from the loading side, through which the cooled and, if necessary, isolated, dry-treated goods can be easily gripped and removed from the outside at any time.
  • This Drying equipment is primarily intended for dry cleaning goods.
  • the invention is therefore based on the object of a drying device type mentioned in a structurally simple manner so that the Feeding, the drying process and the laundry delivery largely continuous and takes place while avoiding disadvantageous loss of time and energy. This object is solved by claim 1.
  • each batch of laundry or each Linen items in the drying phase in a self-contained, from the Adjacent chamber separate inner drum chamber, the principle of which one Single drum machine or a single drum dryer of the conventional type like.
  • the rotary drive of the inner drum is used to convey the individual items stopped when the slidable half-shell is roughly hers bottom dead center position. This collects the laundry in the lower one Half-shell.
  • the lower half-shell is then moved in the direction of "unloading", i.e. in Advance the conveying direction or in the direction of flow by one chamber width. This simultaneously becomes the half-shell positioned in each compartment of the bottom advance laundry items into the chamber following in the conveying direction.
  • this means that the lower half-shell is in front of it Unloading adjacent compartment freely over the inner drum or out of the Machine out.
  • the inner drum is turned half a turn.
  • the advanced, lower half-shell rises and is then above the other, undisplaced Half-shell positioned.
  • the dried one lying in its unloading compartment falls Laundry e.g. on a conveyor.
  • they fall into the insert the rear compartments of the half-shell, which has been turned up and pushed forward Lots of laundry in the corresponding compartments of the others, now lower and undisplaced half-shell.
  • In this new rotary position is the now empty receiving compartment located in the conveying direction the half-shell, which has now remained undisplaced, is now free and is therefore ready for the loading or filling of a new item of laundry.
  • the invention also relates to the management, treatment and distribution of the Subject matter of the invention used for drying fresh air until recirculation as exhaust air into the ambient air of the drying device or into the free atmosphere. It is also the subject of claims 1 ff.
  • the core of the drying device is the inner drum 1. It is divided by two Independent half-shells each extending over about half the drum circumference 2,3 formed.
  • the holes 8 of the Pipe jacket are shown schematically. They are used for free drying in single drum basically known manner, radial to the drum axis of rotation 9 directed flow of one enclosed by the perforated jacket Drying chamber with drying air.
  • the inner drum 1 extending drum axis of rotation 9 occurs within the inner drum 1 or not appearing within their half-shells 2,3. In the inner drum area it is only imaginary.
  • the inner drum 1 is namely on its outer circumference between support rollers 10 within a stationary housing shell serving outer drum 11 rotatably mounted.
  • the outer drum 11 serves in addition to the storage of the inner drum 1 also for air guidance for moisture removal.
  • the half-shells 2, 3 are not shown, only on one of the two Half-shells - here half-shell 2 - acting displacement drive in the axial direction slidable relative to each other.
  • the axial displacement of the half-shell 2 is in FIGS. 2, 3, 5 and 6 by one in the central compartment 13 of the half-shell 2 marked double direction arrow symbolically marked.
  • the compartments 12-14 and 15-17 lie in the axial direction or in the direction of the drum axis of rotation 9 side by side.
  • the drying device is loaded with a laundry item 25 from the loading side located at the rear with respect to the direction of passage 26 27 for removal or ejection side 28 for the dried one Linen items 25.
  • the conveyor belt 29 designed in the exemplary embodiment Feeding device unimpeded in the stationary outer drum 11 surrounding space above the loading compartment 15 of the undisplaced, Drive in the lower half-shell 3 and deliver a laundry item 25.
  • This laundry item 25 is in the form of a dewatered Press cake before as it moves from a dewatering press onto the conveyor belt 29 is given.
  • the middle inner drum chamber also filled with a laundry item 25 19 is used for the actual drying process at a drying temperature up to about 150 ° C.
  • the one facing the ejection side 28 in the passage direction 26 The inner drum chamber 20 at the front, however, is the cooling chamber in which the dried laundry item 25 is cooled to a temperature that does not Danger means more for manual handling of the laundry.
  • rotating Inner drum 1 take place in their adjacent chambers 18-20 So at the same time shaking and heating (chamber 18), the Drying (chamber 19) and cooling (chamber 20) a laundry item 25th
  • Fig. 3 starting position
  • Fig. 5 end position of the ejection process.
  • the fall arrester 32 is effective in the manner of a receptacle into which the dried Lots of laundry 25 from the swung-out removal compartment 14 in the direction of the arrow 33 falls down (Fig. 4).
  • the collecting device 32 is useful with a conveyor connected to the dry laundry of a next processing station feeds (not shown).
  • the ejection end position shown in FIG. 5 is at the same time the loading position for the new loading of the Loading compartment 15 at the rear end of the drying device.
  • step by step in the direction of passage 26 are carried out side by side. It is therefore not necessary to heat up the inner drum 1 one after the other, to expose it to the drying heat and then again to unload and pick up a new batch of laundry cool.
  • step by step in the direction of passage 26 are carried out side by side. It is therefore not necessary to heat up the inner drum 1 one after the other, to expose it to the drying heat and then again to unload and pick up a new batch of laundry cool.
  • step by step in the direction of passage 26 are carried out side by side. It is therefore not necessary to heat up the inner drum 1 one after the other, to expose it to the drying heat and then again to unload and pick up a new batch of laundry cool.
  • three inner drum chambers 18-20 arranged side by side. in principle it would already be advantageous compared to the conventional single drum machine be, according to the invention with only two inner drum chambers arranged side by side 18.19 to work.
  • the air flow inside the drying device saves a lot of energy possible. It is particularly in that in FIGS. 2 and 6 and 7th and 8 shown normal position of the inner drum 1 effective, ie outside the loading or unloading phase of the drying process. she will 7 and 8 described in more detail.
  • Each inner drum chamber 18-20 is acted upon by an independent air flow, which as the direction of passage 26 opposed in the form of a Counter air flow based on the fresh air taken from the ambient air 35 first of all through the cooling of the dried laundry item 25 serving cooling chamber 20, from there through the drying chamber 19 and finally is passed through the heating chamber 18 before the counter air flow by means of the heat exchanger 36, the inherent heat is removed and they then as ambient air 37 again the ambient air or outside atmosphere is fed.
  • the chamber air flow 38-40 is not complete, but only partially, namely only about 40% from the original the fresh air 35 fed counter-air flow. Usually Part, about 60% of the chamber air flow 38-40 to one of the inner drum chambers 20-18 from circulation air. This distribution of quantities is still based on theoretical considerations, which are still experimental and by in Experience values to be acquired in practice are to be determined more precisely. you will be also of the quality of the drying device according to the invention in the laundry flow upstream drainage press, i.e. of the water content within depend on the laundry item 25 fed to the loading side 27. Another criterion is the quality of the laundry material to be dewatered, i.e. the textiles (cotton or e.g. blended fabrics).
  • the counter-air flow is used after blowing through through an inner drum chamber 20, 19 and then 18 in each area a forked line division 41, 42 or 43 divided into one already flowed through the inner drum chamber 20,19 or 18 circulating circulation 44, 45 or 46 and into the further counter air flow, which leads to the next Inner drum chamber and finally until exhaust 37 is continued.
  • the air volume distribution in the one hand the recirculated circulation flow 44-46 and on the other hand, the further counterflow to the exhaust air 37 takes place through valves 47 in the respective flow paths.
  • a Filters 48, 49 or 50 connected upstream. It is also in the counter current flow path behind each inner drum chamber 20-18 a fan 51, 52 or 53 used, which ensures the flow pressure or flow generation.
  • the heat extracted by the heat exchanger 36 from the exhaust air 37 becomes the Heat exchanger 54 supplied to the counter air flow in front of the drying chamber 19 is assigned and heats him up. It also becomes the drying chamber 19 and the chamber air flow 39 supplied to the heating chamber 18 or 40 heat supplied by external steam 55 or 56, as it is in industrially operated Laundries basically for heating purposes especially for that Wash water is available.
  • the counter-air flow takes itself from the ambient or fresh air 35 the following course: the fresh air 35 becomes completely the chamber air flow 38 fed to the cooling chamber 20. However, it only feeds about 40% of the chamber air flow 38 towards the cooling chamber 20. This chamber air flow becomes approx. 60% 38 fed by the circulating air 44 added to the counter air flow removed behind the cooling chamber 20, namely in the region of the line division 41 is branched from this.
  • the counter air flow passes through the filters 48 and the flow is accelerated by the fan 51.
  • the temperature level of the chamber air flow 38 in the cooling chamber 20 during the cooling processes from approximately 80 ° at the beginning to approximately 30 ° at the end, as shown in FIG is.
  • the branched off by the line division 41 and fed to the drying chamber 19 Counter air flow amounts to about 40% of the exhaust air flow the cooling chamber 20. However, this amount of countercurrent only contributes about 40% Total amount of chamber air flow 39 fed to drying chamber 19 at, which is fed to about 60% from the circulation air 45, which is from the chamber exhaust air the drying chamber 19 branches off in the region of the line division 42 is.
  • the chamber air flow 39 is caused by extraneous steam 55 Drying temperature of approx. 150 ° heated. That is during the Drying process in the drying chamber 19 at about the end of Drying process reached temperature level. Behind the drying chamber 19 again flows through the counter-air flow through a filter 49 and it is through a Fan 52 accelerates.

Landscapes

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

Claims (13)

  1. Sèche-linge comprenant un tambour (1) extérieur fixe pour faire passer de l'air servant à évacuer de l'humidité et à l'intérieur, servant de chambre pour la réception du linge, un tambour (1) intérieur perforé du côté du pourtour pour le passage radial de l'air,
    dans lequel le tambour (1) intérieur peut être entraíné en rotation par rapport à un axe (9) de rotation de tambour n'y apparaissant pas matériellement à l'intérieur,
    le tambour (1) intérieur comporte deux hémicoquilles (2, 3) autonomes s'étendant sur respectivement à peu près la moitié du pourtour du tambour,
    l'intérieur de chaque hémicoquille (2, 3) étant subdivisé par au moins une cloison (21 à 24) en au moins deux compartiments (12 à 17), côte à côte dans leur direction axiale, de réception respectivement d'un lot (25) de linge,
    au moins l'une des hémicoquilles (2, 3) pouvant coulisser par rapport à l'autre hémicoquille (3 ou 2) par l'intermédiaire d'un dispositif d'entraínement en coulissement dans la direction (26) axiale de passage des lots (25) de linge et transférant ainsi un lot (25) de linge, se trouvant dans l'un de ses compartiments (12, 13, 14), dans une position de recouvrement avec un compartiment (16, 17) plus loin vers l'avant dans la direction (26) axiale de passage ou avec la partie environnante du tambour (1) extérieur ou de l'autre hémicoquille (3 ou 2),
    dans lequel, lorsque le tambour (1) intérieur continue à tourner, au moins un compartiment (12 à 14 ou 15 à 17) de l'une des hémicoquilles (2 à 3) forme, avec au moins un compartiment (15 à 17 ou 12 à 14) opposé de l'autre hémicoquille (3 ou 2), une chambre commune de tambour intérieur fermée en soi,
    dans lequel chaque chambre (18 à 20) de tambour intérieur est alimentée par un courant (38 à 40) d'air de chambre qui lui est apporté de manière autonome, et
    dans lequel des parties des courants (38 à 40) d'air de chambre sont des parties d'un contre-courant d'air montées en série les unes derrière les autres, contre-courant d'air qui est envoyé en sens inverse du sens (26) de passage du linge successivement dans toutes les chambres du tambour intérieur du sèche-linge et qui est alimenté en air (35) ambiant ou en air frais.
  2. Sèche-linge suivant la revendication 1, dans lequel les entraínements pour le mouvement en rotation du tambour (1) intérieur et pour le mouvement de coulissement de ses hémicoquilles (2, 3) sont efficaces respectivement seulement de manière séparée l'un de l'autre.
  3. Sèche-linge suivant l'une des revendications 1 ou 2, dans lequel un dispositif d'entraínement en coulissement d'une hémicoquille (2, 3) peut être mis en service si une hémicoquille (2, 3) se trouve à peu près à son point mort bas.
  4. Sèche-linge suivant l'une des revendications 1 à 3, dans lequel son chargement d'un lot (25) de linge s'effectue à l'extrémité arrière telle que vue dans le sens (26) de passage du linge du tambour (1) intérieur par le compartiment (12 ou 15) en saillie vers l'arrière de l'hémicoquille (3 ou 2) inférieure et l'hémicoquille (2 ou 3) supérieure est ramenée avant la mise en action de l'opération de séchage ou d'une rotation du tambour (1) intérieur pour mettre les chambres (18 à 20) du tambour intérieur dans une position de recouvrement complet avec l'hémicoquille (3 ou 2) inférieure.
  5. Sèche-linge suivant l'une des revendications précédentes, dans lequel pour faire sortir un lot (25) de linge séché dans la partie de la face (28) avant d'éjection opposée à la face (27) de chargement
    le dispositif d'entraínement en rotation du tambour (1) intérieur est arrêté,
    on fait coulisser l'hémicoquille (2 ou 3) se trouvant au point mort bas avec son compartiment (14 ou 17) se trouvant en avant et contenant le lot (25) de linge séché de sa position de recouvrement avec l'hémicoquille (3 ou 2) supérieure dans une position en saillie ouverte vers le haut et en saillie vers l'avant de cette hémicoquille, et
    ensuite, le lot (25) de linge se trouvant dans le compartiment (14 ou 17) est déversé par une demi-rotation du tambour (1) intérieur sur un dispositif (32) de réception.
  6. Sèche-linge suivant l'une des revendications précédentes, dans lequel les deux hémicoquilles (2, 3) ont trois compartiments (12 à 14, 15 à 17) de mêmes dimensions et disposés côte à côte pour la formation en commun de chambres (18 à 20) de tambour intérieur pour séparément le chauffage superposé au versement du linge humide, pour le séchage et pour le refroidissement d'un lot (25) de linge respectivement introduit.
  7. Sèche-linge suivant l'une des revendications précédentes, dans lequel le contre-courant d'air alimenté en air (35) frais
    passe, pour le refroidissement du linge, dans la chambre (20) de refroidissement du tambour (1) intérieur,
    est chauffé respectivement avant son passage dans les autres chambres (19, 18) du tambour intérieur, et
    est évacué à l'air ambiant en tant qu'air (37) à évacuer après passage dans la dernière chambre (18) du tambour intérieur.
  8. Sèche-linge suivant l'une des revendications précédentes, dans lequel la chambre de tambour intérieur parcourue en dernier par le contre-courant d'air avant de recevoir de l'air à évacuer est constituée en chambre (18) de chauffage du tambour(1) intérieur.
  9. Sèche-linge suivant l'une des revendications précédentes, dans lequel il est envoyé en tant que courant (44 à 46) d'air de circulation au courant (38 à 40) d'air de chambre respectif alimenté à partir du contre-courant d'air une partie de l'air à évacuer qui a été évacuée de la même chambre (20 à 18) de tambour intérieur.
  10. Sèche-linge suivant la revendication 9, dans lequel il est prévu un rapport de mélange d'environ deux parties d'air (35) frais ou de contre-courant d'air pour environ trois parties d'air de circulation.
  11. Sèche-linge suivant l'une des revendications précédentes, dans lequel le contre-courant d'air est respectivement filtré (48 à 50) après son passage dans une chambre (20 à 18) de tambour intérieur.
  12. Sèche-linge suivant l'une des revendications précédentes, dans lequel le contre-courant d'air est accéléré par un ventilateur (51 à 53) après son passage dans une chambre (20 à 18) du tambour intérieur.
  13. Sèche-linge suivant l'une des revendications 6 ou 7, dans lequel il est soutiré de la chaleur par un échangeur de chaleur (36) en vue de récupérer de la chaleur de l'air à évacuer qui passe dans la chambre (18) de chauffage et on l'envoie à la partie du contre-courant d'air qui est envoyé à la chambre (19) de séchage.
EP00101138A 1999-03-26 2000-01-21 Dispositif de sèchage pour le linge Expired - Lifetime EP1054094B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19913938 1999-03-26
DE19913938A DE19913938A1 (de) 1999-03-26 1999-03-26 Trocknungseinrichtung für Wäsche

Publications (2)

Publication Number Publication Date
EP1054094A1 EP1054094A1 (fr) 2000-11-22
EP1054094B1 true EP1054094B1 (fr) 2003-09-17

Family

ID=7902643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00101138A Expired - Lifetime EP1054094B1 (fr) 1999-03-26 2000-01-21 Dispositif de sèchage pour le linge

Country Status (6)

Country Link
EP (1) EP1054094B1 (fr)
AT (1) ATE250158T1 (fr)
DE (2) DE19913938A1 (fr)
DK (1) DK1054094T3 (fr)
ES (1) ES2207432T3 (fr)
PT (1) PT1054094E (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10307123A1 (de) * 2003-02-19 2004-09-09 Mewa Textil-Service Ag & Co. Management Ohg Trocknungseinrichtung für Wäsche und Verfahren zum Betrieb einer solchen
US9140396B2 (en) 2013-03-15 2015-09-22 Water-Gen Ltd. Dehumidification apparatus
WO2015136393A1 (fr) * 2014-03-11 2015-09-17 Water-Gen Ltd. Sèche-linge à condensation à cycle fermé avec régénération thermique
US10151060B2 (en) 2015-11-24 2018-12-11 Water-Gen Ltd Steam compression dryer
DE102017002174A1 (de) * 2017-03-09 2018-09-13 Lapauw (Thailand) Ltd. Wäschetrockner zur Trocknung von Wäsche

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1194362B (de) * 1959-11-28 1965-06-10 Konrad Schaefer Vorrichtung zum Behandeln von Textilgut, insbesondere zum Waschen von Waesche
FR2153438B1 (fr) * 1971-09-23 1976-08-13 Lapauw Werkhuizen
AT317822B (de) * 1972-05-19 1974-09-10 Meyer Arnfried Durchlauftrommelmaschine, insbesondere zum Trocknen von Wäsche

Also Published As

Publication number Publication date
DE50003691D1 (de) 2003-10-23
ES2207432T3 (es) 2004-06-01
PT1054094E (pt) 2004-02-27
ATE250158T1 (de) 2003-10-15
DE19913938A1 (de) 2000-09-28
DK1054094T3 (da) 2004-01-26
EP1054094A1 (fr) 2000-11-22

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