EP0053088A1 - Procédé et dispositif pour conduire l'air dans une calandre - Google Patents

Procédé et dispositif pour conduire l'air dans une calandre Download PDF

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Publication number
EP0053088A1
EP0053088A1 EP19810710051 EP81710051A EP0053088A1 EP 0053088 A1 EP0053088 A1 EP 0053088A1 EP 19810710051 EP19810710051 EP 19810710051 EP 81710051 A EP81710051 A EP 81710051A EP 0053088 A1 EP0053088 A1 EP 0053088A1
Authority
EP
European Patent Office
Prior art keywords
air
rollers
roller
laundry
flow
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.)
Ceased
Application number
EP19810710051
Other languages
German (de)
English (en)
Inventor
Otto Stichnoth
Andreas Stichnoth
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19803044229 external-priority patent/DE3044229A1/de
Priority claimed from DE19813123886 external-priority patent/DE3123886C2/de
Application filed by Individual filed Critical Individual
Publication of EP0053088A1 publication Critical patent/EP0053088A1/fr
Ceased 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
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
    • D06B23/22—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for heating
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
    • D06C15/04—Calendering, pressing, ironing, glossing or glazing textile fabrics between rollers and co-operating concave surfaces

Definitions

  • the invention relates to a method for guiding the air to a mangle, the rollers of which are indirectly heated externally with steam, hot oil or the like, the air mixed with water vapor from the laundry being sucked out of the mangle rollers and warm air being sucked out Rolls is fed from the outside.
  • the invention shows at the same time a device for carrying out the method with a plurality of indirectly heated rollers arranged one behind the other in the flow direction of the laundry, a suction device for the air mixed with water vapor from the rollers, a heat exchanger and a hood cover for the rollers for supplying warm air to the rollers of the Deficiency, as is known from DE-OS 28 14 618.
  • M angles are usually used for further dehumidification and smoothing of washed and pressed laundry.
  • Such ironers have rollers around which the laundry to be ironed is guided.
  • the rollers of the ironer are usually heated indirectly in the lower area with steam, hot oil or the like.
  • the water evaporated from the laundry is drawn off in the form of water vapor from the interior of the rollers and passed into the atmosphere. Further moisture is removed from the laundry in an advantageous manner, but the heated and mixed air mixed with water vapor is also disadvantageously discharged into the atmosphere, as a result of which a considerable amount of heat is lost. This also happens when the ironer is idle, so no laundry is sent through the ironer.
  • rollers In the upper area of the rollers, which are perforated, passes through the suction in the interior of the rollers cool air into the rollers. This cold air is also extracted. This has the advantage that drying of the roll winding occurs. Disadvantageously, the rollers are cooled at the same time, so that the lack of indirect steam heating and thereby the laundry carried on the rollers by sucking off unclean air in the upper region of the rollers.
  • hood cover In order to avoid the last-mentioned disadvantage or to reduce its effect, it is known to arrange a hood cover over the rollers.
  • This hood cover extends over all hoods arranged one behind the other in the flow direction of the laundry and thus represents overall protection against the loss of radiation heat upwards. Secondly, it largely prevents the lint from entering the room and the associated contamination of the roller winding.
  • the invention is based on the object, based on the method described last, to further develop the latter in such a way that the energy which is necessarily required in the case of a defect is used more sensibly and is used as economically as possible. Furthermore, the air's ability to absorb water should be better utilized. The cooling of the rollers with fresh air should be avoided so that an increase in performance occurs.
  • this is achieved in that the air mixed with water vapor from the laundry is sucked out individually or in groups from the rollers and this air is supplied to the roller or roller group preceding in the direction of flow of the laundry in the upper region from the outside, and that of the in the direction of flow Air extracted from the laundry first roller is at least partially fed back to the last roller as circulating air.
  • This warm air can, at least in part, be recirculated to the last roller using the recirculation method. It goes without saying that dehumidification must be provided in the circuit or very moist air must be discharged into the atmosphere via a branch line in order to counteract the accumulation of moisture in the circuit.
  • the air drawn off by the first roller in the direction of flow of the laundry can be at least partially dehumidified before being fed back to the last roller, the heat obtained in this way being expediently put back into the circuit.
  • the air extracted from the mangle rollers as a whole is guided in a largely closed circuit, is largely dehumidified in a heat exchanger outside the mangle and is heated again and fed to the rollers.
  • the heat of vaporization of the water is regained. This heat is put back into the circuit, i.e. H. the dehumidified, dry circulating air is heated up again and the deficiency is added again.
  • a gap for the introduction of the laundry must be provided on the ironer so that the cycle cannot be completely closed.
  • the process can be carried out in countercurrent or in cocurrent.
  • Cold water can be used as a cooling medium for dehumidification in the heat exchanger, with which the air circulated after the dehumidification is also heated again.
  • this water-cooled again somewhat, but is still warm, or hot enough to feed it useful in the W äscherei one or more uses.
  • the recirculation process is preferably carried out completely, so that the heat introduced via the steam heating remains in the circuit as far as possible and cannot flow into the atmosphere.
  • the division of the air sucked off by the first roller in the flow direction of the laundry into circulating air and exhaust air is expediently controlled as a function of the moisture content of the air. When the air is sufficiently humid, it is released into the atmosphere or into another cycle. This control can also be carried out partially, so that in any case cold fresh air does not have to be supplied to the last roller via its hood cover.
  • the circuit of the air outside the ironer is particularly advantageously divided into two parallel sections, with only the air in one of the two parallel sections being dehumidified and heated again. This makes it possible to control the relative humidity of the reheated air and also to influence the temperature conditions in the circuit.
  • a device for carrying out the method has several indirectly heated rollers arranged one behind the other in the flow direction of the laundry, a suction device for the air mixed with water vapor from the rollers, a heat exchanger and a hood cover for the rollers for supplying warm air to the rollers of the ironer.
  • the device is characterized according to the invention in that the rollers are provided individually or in groups with suction devices and individual hood covers, between which individual lines are guided so that the air extracted by the individual rollers moves in countercurrent to the direction of flow of the laundry, and in that the suction device the first in the flow direction of the wash roll via a channel with the Haubenabdeckun g of the last roller is connected.
  • each individual roller or roller group can be treated individually, ie the air mixed with water vapor to a certain degree is extracted from each roller or roller group and fed back to the adjacent roller or roller group preceding in the direction of flow.
  • There is no significant cooling of the air between the rollers because each roller is indirectly heated and this heating device continuously releases heat to the winding of the rollers.
  • the moisture content of the air can thus be increased from roller to roller backwards, ie against the direction of flow of the laundry.
  • the circuit formed from the individual lines between the first and last roller is provided with a branch line which leads to the atmosphere. This makes it possible to send a portion of the circulating air, which is thus circulated, into the atmosphere via the branch line, so that constancy can ultimately be set within the circulating air circuit or a regulation can be found to cope with the various loads to compensate for the lack of the idle phase on the one hand and the different load phases.
  • the circuit for guiding the circulating air can be supplemented by a partial circuit which begins at the branch line and leads back to the hood cover of the last roller via a dehumidification device. This makes it possible to selectively remove moisture from the circulating air circuit and to recover part of the heat contained in the air.
  • a hygrostat is expediently arranged in the duct or in a well-known secondary section of the duct, which controls the proportionate distribution of the air in the duct into recirculated air and exhaust air by means of an actuator.
  • the air recirculation process is used more or less completely, while the shortage of exhaust air is greatest when the load is high.
  • An associated fan can be arranged on the suction device of each roller in order to increase the suction power on each roller and to strive for uniform pressure conditions on the individual rollers.
  • Another device for performing the method is characterized by a line for guiding the air in a largely closed circuit in which the fan, the heat exchanger and the hood cover are arranged. It is understood that one or more fans can be provided in the circuit.
  • the heat exchanger can be operated with any cooling medium, preferably with water, the heat exchanger has a first zone in which the circulated air is cooled and dehumidified indirectly by means of cold water. It has a second zone in which the cooled air is reheated with the water heated in the first zone. It can certainly be heated to about 90 ° C, so that the supply of this heated air to the winding of the shortage roller does not cause any significant cooling of the roller, and thus the energy required to re-heat the roller when entering the trough is eliminated.
  • the dry hot air that is fed to the rollers allows the roller winding to dry faster. This makes it possible to comparatively reduce the amount of heat supplied to the rollers via the indirect steam heating.
  • the lines for guiding the air in the largely closed circuit can be divided into two controllable sections, the heat exchanger being arranged in only one section. This training is recommended for tax and regulatory purposes.
  • the heat exchanger in the circuit for the air can be followed by a second heat exchanger in which, for example, room air is heated by means of the heated cooling water of the first heat exchanger.
  • This room air which can still reach a temperature of around 50 ° C, can be used well in a laundry. It can be used for preheating in a tumble dryer. After this second heat exchanger, hot water is still produced, which is usefully used when operating the washing machine in the laundry or is available as hot water for general operating purposes.
  • Fig. 1 five rollers 1, 2, 3, 4, 5 a mangle 6 are schematically shown, through which the laundry is passed in the direction of arrow 7, angel inlet that is in the M is introduced at the roll 1 and then the rollers 2, 3 and 4 is passed on to the last roller 5, where it then exits.
  • Each roller has 1, 2, 3, 4, 5 in its lower part there is a heating device 8, which is designed as indirect heating and is heated, for example, by steam, which is sent through each heating device 8 according to arrows 9 and 10.
  • each roller 1, 2, 3, 4, 5 has a hood cover 11, 12, 13, 14, 15, which each serve to supply air to the individual rollers and upwards with insulation 16 against all large loss of radiation heat are protected.
  • the air fed to the last roller 5 via a line section 17 is supplied via the hood cover 15 to the roller 5 and, depending on its temperature, applies additional heat to the winding of the roller 5 or to the laundry, so that moisture evaporates from the laundry and is sucked off inside the roller 5.
  • a fan 18, which is assigned to the roller 5, is used for extraction.
  • the rollers 1 to 4 have the fans 22, 21, 20 and 19.
  • From the fan 18, a line 23 leads to the hood cover 14 of the roller 4.
  • a line 24 leads from the fan 19 to the hood cover 13 of the roller 3 and so on.
  • the fan 22 on the first roller 1 sucks off the most moisture-laden air inside this roller and sends it into a duct 27, which has a connection to the line section 17 via a line section 28, so that a closed circuit is shown, in which the warm, humid air is sent backwards from roller to roller in a countercurrent process, i.e. counter to the flow direction of the laundry according to arrow 7.
  • the channel 27 has a calmed secondary section 29, in which a hygrostat 30 is arranged.
  • the hygrostat 30 controls, via a line 31, an actuator 32 which, in the simplest version, is designed as a distributor flap can.
  • a branch line 33 branches off from the channel 27 and ultimately leads into the atmosphere.
  • a valve or control member 34 is provided in this branch line 33.
  • a further line 35 can be provided, which has a connection to the line section 17 via a valve 36.
  • a dehumidifying device 37 is arranged in the line 35, which allows the moisture or at least a large part of the moisture to be removed from the air laden with it and, with heat recovery, to feed the air back into the countercurrent circuit.
  • the dehumidifying device 37 can work with four cooling registers 38, which are followed by two heating registers 39.
  • fresh water can be used as the cooling medium, which is led through the dehumidifying device 37 according to the arrows 40 and 41 and the line connections shown.
  • the water separated from the moist air is removed via a line 42.
  • the operation of the device according to FIG. 1 is as follows: When a defect is started up, the heating devices 8 are first put into action, so that the winding on each roller 1 to 5 is heated. By switching on the fans 18 to 22, a more or less closed circuit 17, 23, 24, 25, 26, 27, 28 is started, the air in this circuit heating up.
  • the actuator 32 is in such a position that the branch line 33 is closed.
  • the valve 36 is also closed. If the ironer has reached operating temperature in this way, items of laundry can be sent through the ironer in accordance with arrow 7, the moisture content of the laundry gradually being passed along the direction of flow Rolls 1 to 5 is lowered. The air sucked off on the last roller 5 and slightly mixed with moisture is returned to the roller 4 via the line 23 and the hood cover 14.
  • a defect 6 is shown schematically, which may have five rollers 1, 2, 3, 4, 5.
  • the rollers are driven in a known manner, the laundry being passed through the ironer 6 according to the arrow 7.
  • the rollers 1, 2, 3, 4, 5 are heated indirectly with steam in their lower area.
  • the steam is passed through heating chambers.
  • Moisture-laden, hot air is drawn off from the inside of the rollers via the line sections 23, 24, 25, 26 and 27 in accordance with the arrows.
  • This air passes through a manifold 43 to a blower 44, where it is approximately 130 ° C.
  • the air is circulated via a line 45, two lines 46 and 47 connected in parallel, and line 17, which ends in a common hood cover 11 at the mangle.
  • the rollers 1, 2, 3, 4, 5 are known to be perforated, the air re-enters the interior of the rollers through the roller winding and through the perforation, from where it is in turn suctioned off.
  • a heat exchanger or a dehumidifying device 37 is arranged in the path 46 and has a zone designed as a cooling register 38 and a zone designed as a heating register 35.
  • the first zone has four heat exchanger or cooling registers 38, while the second zone has two heat exchange or heating registers 39.
  • the heat exchange registers 38 are used to dehumidify the circulated air.
  • Cold water as shown, is sent through the heat exchange registers 38, 39 via a line according to arrow 40, the cold water heating up accordingly, since the steam is separated from the circulating air and the heat of vaporization of the water arises in the process.
  • This hot water is, as shown, fed to the heat exchange registers 39, where it cools down again and the cooled dry air is finally heated again to about 80 ° C.
  • the cooling water emerging via the line according to arrow 41 at the heat exchanger 37 has a temperature of approximately 80-90 ° C. It can be fed to a second downstream heat exchanger 48, with which, for example, room air is heated from 30 ° C. to 50 ° C. according to arrow 49. At the outlet of the heat exchanger 48, the warm water in the line 50 still has a temperature of 50-60 ° C., so that it can be used as washing water in the washing machine in the laundry or can be usefully supplied for other purposes.
  • the condensate obtained in the first zone of the heat exchanger 17 is drawn off and discharged via the line 42. The amount of condensation water corresponds to the evaporation capacity of the ironer.
  • Moist and hot air can be directed past the heat exchanger 37 via the path 47. Temperatures of about 130 ° C. may be present here, so that the mixed air in line 17 can again assume temperatures of 110 ° C., with which the heated air is thus supplied to iron 6 or hood cover 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
EP19810710051 1980-11-25 1981-11-24 Procédé et dispositif pour conduire l'air dans une calandre Ceased EP0053088A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3044229 1980-11-25
DE19803044229 DE3044229A1 (de) 1980-11-25 1980-11-25 Verfahren und vorrichtung zur fuehrung der luft und des wasserdampfes an einer mangel
DE3123886 1981-06-16
DE19813123886 DE3123886C2 (de) 1981-06-16 1981-06-16 "Verfahren und Vorrichtung zur Führung der Luft an einer Mangel"

Publications (1)

Publication Number Publication Date
EP0053088A1 true EP0053088A1 (fr) 1982-06-02

Family

ID=25789287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810710051 Ceased EP0053088A1 (fr) 1980-11-25 1981-11-24 Procédé et dispositif pour conduire l'air dans une calandre

Country Status (1)

Country Link
EP (1) EP0053088A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236870A1 (de) * 1982-10-05 1984-04-05 Kleindienst GmbH, 8900 Augsburg Verfahren und vorrichtung zur fuehrung der luft und des wasserdampfes an einer mangel beim glaetten feuchter waeschestuecke
EP0384543A1 (fr) * 1989-02-23 1990-08-29 Jensen Holding Ag Dispositif de repassage de vêtements
EP1788143A1 (fr) * 2005-11-16 2007-05-23 Joachim Krause Dispositif pour calandrer des pièces plates de linge
CN114261813A (zh) * 2021-12-27 2022-04-01 南通冠恒纺织有限公司 一种纺织布烫平收卷装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE126218C (fr) *
GB437735A (en) * 1934-04-30 1935-10-30 Victor Lister Improvements relating to laundry and textile drying machines and the like
GB505695A (en) * 1938-02-01 1939-05-16 Peter August Lindberg Improvements in or relating to drying machines for fabrics, suitable for use in laundries
US2506476A (en) * 1945-10-31 1950-05-02 Troy Max Laundry drying and fluffing machine
DE2216701A1 (de) * 1972-04-07 1973-10-11 Hans F Arendt Waeschetrockenaggregat
DE2700493A1 (de) * 1977-01-07 1978-07-13 Hans Baltes Trockengeraet fuer waesche
DE2814618A1 (de) * 1978-01-24 1979-07-26 Robert Theiler Buegelanlage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE126218C (fr) *
GB437735A (en) * 1934-04-30 1935-10-30 Victor Lister Improvements relating to laundry and textile drying machines and the like
GB505695A (en) * 1938-02-01 1939-05-16 Peter August Lindberg Improvements in or relating to drying machines for fabrics, suitable for use in laundries
US2506476A (en) * 1945-10-31 1950-05-02 Troy Max Laundry drying and fluffing machine
DE2216701A1 (de) * 1972-04-07 1973-10-11 Hans F Arendt Waeschetrockenaggregat
DE2700493A1 (de) * 1977-01-07 1978-07-13 Hans Baltes Trockengeraet fuer waesche
DE2814618A1 (de) * 1978-01-24 1979-07-26 Robert Theiler Buegelanlage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3236870A1 (de) * 1982-10-05 1984-04-05 Kleindienst GmbH, 8900 Augsburg Verfahren und vorrichtung zur fuehrung der luft und des wasserdampfes an einer mangel beim glaetten feuchter waeschestuecke
EP0384543A1 (fr) * 1989-02-23 1990-08-29 Jensen Holding Ag Dispositif de repassage de vêtements
US5022169A (en) * 1989-02-23 1991-06-11 Jensen Holding Ag Apparatus for ironing laundry
EP1788143A1 (fr) * 2005-11-16 2007-05-23 Joachim Krause Dispositif pour calandrer des pièces plates de linge
CN114261813A (zh) * 2021-12-27 2022-04-01 南通冠恒纺织有限公司 一种纺织布烫平收卷装置
CN114261813B (zh) * 2021-12-27 2023-11-28 南通冠恒纺织有限公司 一种纺织布烫平收卷装置

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