EP0080573B1 - Roller ironing machine, in particular machine having several rollers - Google Patents

Roller ironing machine, in particular machine having several rollers Download PDF

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Publication number
EP0080573B1
EP0080573B1 EP82108909A EP82108909A EP0080573B1 EP 0080573 B1 EP0080573 B1 EP 0080573B1 EP 82108909 A EP82108909 A EP 82108909A EP 82108909 A EP82108909 A EP 82108909A EP 0080573 B1 EP0080573 B1 EP 0080573B1
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EP
European Patent Office
Prior art keywords
calender
trough
air
hot
mangle
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EP82108909A
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German (de)
French (fr)
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EP0080573A2 (en
EP0080573A3 (en
Inventor
Johannes Dipl.-Ing. Berger
Wolfgang Blechschmidt
Christian Dr.-Ing. Wolff
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Kombinat Textima VEB
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Kombinat Textima VEB
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Priority to AT82108909T priority Critical patent/ATE19799T1/en
Publication of EP0080573A2 publication Critical patent/EP0080573A2/en
Publication of EP0080573A3 publication Critical patent/EP0080573A3/en
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    • 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

Definitions

  • the invention relates to a shortage of hot troughs, in particular a multiple trough lack for drying and smoothing damp laundry items.
  • the mangle cylinder mostly has a perforated outer surface and a hollow bearing journal which is connected to a trigger device (DE-C-131918).
  • This exhaust air contains a significant amount of unused heat, which must be continuously applied by the heating system due to the lack of hot plates.
  • the suction line connected to the defect cylinder leads via a fan to a passage of a heat exchanger which is suitable for transferring the heat of an air stream to another.
  • the heat exchanger has a second passage through which the fresh air sucked in from the surroundings of the hot-tub shortage is pressed by means of a further fan.
  • the fresh air heated in this way is supplied to two boxes, which are arranged in front of or behind the trough and have sieve-like perforations for the fresh air to escape. In the area of these boxes, the fresh air should give off its heat to the laundry passing by and pre-dry or post-dry it.
  • the disadvantage here is that the heat exchanger is arranged separately from the ironer and at a greater distance from it. This is associated either with large heat losses during the transfer of the exhaust air from the shortage cylinder to the heat exchanger or with great expense for the heat insulation of the corresponding lines.
  • the warm air flowing into the shortage environment after contact with the laundry to be dried also means an unacceptable burden on the operating personnel due to the shortage of hot troughs.
  • the system permanently loses the amount of heat still contained in the fresh air.
  • the purpose of the invention is to reduce energy losses due to the lack of hot troughs while avoiding environmental pollution.
  • the invention has for its object to provide a hot tub shortage, which allows a more intensive use of the heat contained in the exhaust air, the heat recovery system required for this purpose should be arranged in a space-saving manner inside the hot tub shortage and should allow its subsequent expansion by additional deficiency units.
  • a very important advantage of the hot-tub ironer according to the invention is the direct assignment of a heat exchanger to each ironer unit. As a result, the heat exchanger is flowed through shortly after the exhaust air exits the ironing cylinder. The heat losses are accordingly low, and cables with a high level of insulation are almost completely eliminated.
  • the introduction of the exhaust air into an exhaust air collecting duct after the heat exchangers have flowed through enables the extraction device to be equipped with a single exhaust air fan which acts on all the existing deficiency units.
  • the flow spaces of the heat exchangers which are provided for the fresh air, are arranged in a continuous fresh air supply duct.
  • the fresh air is gradually heated as a result of passing several heat exchangers.
  • the fresh air is taken from the room, which is formed by the outer limitation of the shortage of hot plates.
  • This is preferably the interior of a side stand, which is already at a higher temperature than the area around the hot-tub shortage.
  • the intake opening of the fresh air supply duct is provided with a filter, which e.g. Retains lint and the like.
  • the fresh air conveyed by the air supply device and heated in the heat exchangers is fed to a blow-out device which is located together with the shortage cylinders and the shortage troughs in an almost closed shortage space.
  • This mangle room only has inlet and outlet openings for the items to be mangled. In this way, dry but already heated fresh air is supplied to the shortage area. This has a high drying potential without the need for additional energy.
  • the blow-out device should be arranged in the first third of the shortage area, i.e. in the zone with the highest heat demand.
  • blow-out device is designed as a nozzle box known per se from tension drying machines. This can e.g. be arranged before entering the first ironer and thus contribute to effective drying of the laundry items.
  • a hot trough shortage to which the invention relates, consists in its basic structure essentially of two side stands 1, at least one shortage cylinder 2, which is rotatably mounted in the side stands 1 and at least one shortage trough 3.
  • the shortage cylinder 2 is from the shortage trough 3 on one Central angle from 120 ° to 180 ° enclosed on the casing side.
  • each a shortage cylinder 2, a shortage trough 3, the sections of the side stand 1 assigned to them as a frame and the drive (not shown) form a shortage unit 4.
  • FIG. 1 accordingly shows a multiple trough shortage with three successive shortage units 4.
  • the shortage troughs 3 are thereby Trough bridges 5 connected.
  • the shortage troughs 3 and also the trough bridges 5 are not recognizable, these have been indicated in FIG. 1 to illustrate the structure of the hot trough shortage by dashed lines.
  • Both the mangle troughs 3 and the trough bridges 5 are heated.
  • they have heating elements which are mostly flowed through by a flowable heat transfer medium. This can e.g. Hot steam or heat transfer oil.
  • the first deficiency unit 4 is preceded by an input unit 6 known per se.
  • the lack cylinders 2 are designed as hollow cylinders and have a perforated outer surface.
  • a bearing pin of each mangle cylinder 2 is hollow and thus forms a suction opening 7 which opens into an air distribution box 8.
  • Each deficiency unit 4 is assigned a heat exchanger 9 with two flow spaces.
  • the heat exchangers 9 are preferably designed as cross-flow plate heat exchangers, so that, as can be seen in FIG. 2, a first flow space 30 consisting of a plurality of columns 10 between the plates of the heat exchanger and a second flow space 31 consisting of a plurality of columns 11 is formed.
  • the heat exchangers 9 operate according to the countercurrent or cocurrent principle.
  • the heat transfer surfaces can also be designed differently, e.g. as a glass tube heat exchanger.
  • the use of heat pipes is also advantageous.
  • the heat exchangers 9 can also, as indicated by a broken line in FIG. 1, be composed of a plurality of heat exchanger modules.
  • each heat exchanger 9 are connected on the one hand via the air distribution box 8 to the suction opening 7 of the associated mangle cylinder 2, on the other hand they open into an exhaust air collecting duct 12 which connects all existing mangle units 4 to the exhaust air fan 13 of the suction device. The latter is followed by an exhaust air duct 14 leading out of the ironing room.
  • Each deficiency unit 4 is also assigned an exhaust air quantity control device 15. This can, as for example in FIG. 2, be arranged between the heat exchanger 9 and the exhaust air collecting duct 12, but also between the suction opening 7 and the air distribution box 8 or elsewhere.
  • the flow spaces 31 of the heat exchangers 9 consisting of the columns 11 form a continuous fresh air supply duct 16 which is connected to the air supply device 17.
  • the fresh air supply duct 16 is formed only by the gaps 11 of the only available heat exchanger 9.
  • An intake line 18 leads from the fresh air supply duct 17 to the fresh air fan 19, while a pressure line 20 ends in a blow-out device 21.
  • This is be in the present example particularly advantageously designed as a nozzle box, as is well known from tension drying machines.
  • the blow-out device 21 is arranged in the first third of the almost closed lack space 25 delimited by the side stands 1, an upper cover 22, the closed surface formed by the lack troughs 3 and the trough bridges 5 and a front wall 23 and a rear wall 24.
  • This first third of the lack space 25 is the section with the greatest heat requirement in terms of the requirements of the lack process. It can be seen from FIG. 1 that the blow-out device 21 is arranged directly in front of the first mangle unit 4.
  • the blow-out device 21 can also be arranged at the end of the first mangle unit 4 and the first trough bridge 5.
  • the suction opening of the fresh air supply duct 16 is located within the outer limitation of the shortage of hot troughs, preferably within the side stand 1 which receives the heat exchangers 9, the air distribution boxes 8 and the exhaust air collecting duct 12.
  • the suction opening is advantageously provided with a filter 26, which mainly retains lint etc.
  • the rear wall 24 has an opening 27 in the vicinity of the exhaust air fan 13, which allows the entry of air from the vicinity of the hotplate shortage into the side stand 1.
  • the entire heat recovery system described above including the suction and air supply device, is arranged within the outer limitation of the shortage of hot troughs, i.e. that outside of the shortage of hot troughs there is no need to arrange any additional units for realizing heat recovery.
  • the water contained in them is evaporated.
  • the water vapor enters through the perforation of the mangle cylinder 2 into its interior and forms a water vapor-air mixture, the exhaust air 28, with the air entering through the free upper side of the mangle cylinder 2.
  • the exhaust air 28 passes through the suction openings 7 (represented by solid line arrows). into the air distribution boxes 8 and then into the column 10 of the heat exchanger 9. It finally reaches the exhaust air collecting duct 12 and is discharged by the exhaust air fan 13 via the exhaust line 14 from the shortage of hot plates.
  • the amount of exhaust air 28 to be conveyed from the lack cylinders 2 is individually influenced by the exhaust air quantity control device 15 for each lack unit 4.
  • fresh air 29 (represented by dashed-line arrows) enters the fresh air supply duct 16 from the interior of the side stand 1 through the filter 26. It is replaced by air from the vicinity of the hot tub shortage, which enters the side stand 1 through the opening 27 and thereby effectively cools the drive of the exhaust air fan 13.
  • the fresh air 29 enters an intensive, step-by-step heat transfer process with the exhaust air 28 as it flows through the fresh air supply duct 16 and is heated.
  • the exhaust air 28 gives off a considerable part of the amount of heat contained therein, which is otherwise uselessly dissipated, to the fresh air 29.
  • Trough lubricant which may be thawing from the exhaust air 28, e.g. Silicone oil collects in the air distribution boxes 8 and can be removed from them in a simple manner.
  • the heated fresh air 29 enters the deficiency space 25 from the blow-out device 21. There it meets the wet and cold laundry items entering the first ironer unit 4 and causes the drying process to be accelerated by preheating these laundry items. Irrespective of this, however, blowing the heated fresh air 29 into the shortage space 25 enables a uniformly high temperature level therein and saves a substantial amount of energy which would otherwise have to be additionally applied by the shortage troughs 3 to heat the fresh air 29.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Drying Of Solid Materials (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Seeds, Soups, And Other Foods (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

A heated trough mangle comprises a frame, at least one mangle unit situated inside the frame and including a mangle cylinder with a perforated mangle surface and at least one heated mangle trough partially surrounding the mangle cylinder, an exhaust device with an exhaust air channel to withdraw exhaust air from inside the mangle cylinder to outside through the exhaust air channel, an air supply device to supply fresh air and having an air providing device, and an apparatus to transfer heat from one air stream to another air stream. The improvement comprises a heat exchanger with first and second flow chambers situated in each mangle unit, the first flow chamber of the heat exchanger being connected at one end to the mangle cylinder and connected at the other end to the exhaust device through the exhaust air channel, the second flow chamber being connected to the air supply device and forming a continuous fresh air supply channel. The air providing device of the air supply device terminates adjacent to the mangle cylinder so that the fresh air is continuously heated and supplied to the mangle unit to dry laundry pieces.

Description

Die Erfindung betrifft eine Heissmuldenmangel, insbesondere Mehrmuldenmangel zum Trocknen und Glätten feuchter Wäschestücke.The invention relates to a shortage of hot troughs, in particular a multiple trough lack for drying and smoothing damp laundry items.

Es ist bekannt, bei Heissmuldenmangeln das sich beim Mangeln von Wäschestücken in den Arbeitszonen zwischen den Mangelzylindern und den Mangelmulden bildende Wasserdampf-Luft-Gemisch als Abluft abzusaugen. Dazu besitzt zumeist der Mangelzylinder eine perforierte Mantelfläche und einen hohlen Lagerzapfen, der an eine Abzugseinrichtung angeschlossen ist (DE-C-131918).It is known to draw off the water vapor-air mixture which forms during the mangling of laundry items in the work zones between the mangle cylinders and the mangle troughs as hot air. For this purpose, the mangle cylinder mostly has a perforated outer surface and a hollow bearing journal which is connected to a trigger device (DE-C-131918).

Diese Abluft beinhaltet eine erhebliche ungenutzte Wärmemenge, die kontinuierlich vom Beheizungssystem der Heissmuldenmangel aufgebracht werden muss.This exhaust air contains a significant amount of unused heat, which must be continuously applied by the heating system due to the lack of hot plates.

Es ist deshalb bereits eine Heissmuldenmangel bekannt geworden, an welcher zumindest ein Teil dieser Abwärme nachgenutzt wird (DE-C-468 074). Bei dieser Mangel führt die an den Mangelzylinder angeschlossene Absaugleitung über einen Ventilator zu einem Durchgang eines Wärmeübertragers, welcher geeignet ist, die Wärme eines Luftstromes an einen anderen zu übertragen. Dazu besitzt der Wärmeübertrager einen zweiten Durchgang, durch welchen mittels eines weiteren Ventilators aus der Umgebung der Heissmuldenmangel angesaugte Frischluft gedrückt wird. Die auf diese Weise erwärmte Frischluft wird zwei Kästen zugeführt, die vor bzw. hinter der Mangelmulde angeordnet sind und siebartig durchbrochene Stellen zum Austritt der Frischluft besitzen. Die Frischluft soll im Bereich dieser Kästen ihre Wärme an die vorbeiwandernde Wäsche abgeben und diese vor- bzw. nachtrocknen.A shortage of hot troughs has therefore already become known, in which at least some of this waste heat is reused (DE-C-468 074). In the case of this defect, the suction line connected to the defect cylinder leads via a fan to a passage of a heat exchanger which is suitable for transferring the heat of an air stream to another. For this purpose, the heat exchanger has a second passage through which the fresh air sucked in from the surroundings of the hot-tub shortage is pressed by means of a further fan. The fresh air heated in this way is supplied to two boxes, which are arranged in front of or behind the trough and have sieve-like perforations for the fresh air to escape. In the area of these boxes, the fresh air should give off its heat to the laundry passing by and pre-dry or post-dry it.

Nachteilig dabei ist, dass der Wärmeübertrager getrennt von der Mangel und in grösserer Distanz von dieser angeordnet ist. Damit sind entweder bereits grosse Wärmeverluste bei der Überführung der Abluft vom Mangelzylinder zum Wärmeübertrager bzw. grosser Aufwand für die Wärmeisolierung der entsprechenden Leitungen verbunden. Hinzu kommen ohnehin grosser Platzbedarf und Bauaufwand. Die nach dem Kontakt mit der zu trocknenden Wäsche in die Mangelumgebung strömende Warmluft bedeutet weiterhin eine nicht zu akzeptierende Belastung des Bedienpersonals der Heissmuldenmangel. Ausserdem geht auf diese Weise dem System die immer noch beträchtliche in der Frischluft enthaltene Wärmemenge endgültig verloren.The disadvantage here is that the heat exchanger is arranged separately from the ironer and at a greater distance from it. This is associated either with large heat losses during the transfer of the exhaust air from the shortage cylinder to the heat exchanger or with great expense for the heat insulation of the corresponding lines. In addition, there is a lot of space and construction work anyway. The warm air flowing into the shortage environment after contact with the laundry to be dried also means an unacceptable burden on the operating personnel due to the shortage of hot troughs. In addition, the system permanently loses the amount of heat still contained in the fresh air.

Mit der DE-A- 2814618 ist weiterhin eine Bügelanlage bekannt geworden, bei welcher die in einem Wärmeübertrager durch die Abluft aus den Mangelzylindern und das beim Beheizen der Mangelmulden anfallende Kondensat erwärmte Frischluft unmittelbar in der Nähe einer Walzen-Mulden-Einheit (Mangeleinheit) dem Mangelraum zugeführt wird. Diese Bügelanlage hat jedoch ebenfalls den Nachteil einer externen Anordnung des Wärmeübertragers mit allen bereits beschriebenen Folgen aufzuweisen.With DE-A-2814618 an ironing system has also become known, in which the fresh air heated in a heat exchanger by the exhaust air from the shortage cylinders and the condensate produced when the shortage troughs are heated are located in the immediate vicinity of a roller-trough unit (shortage unit) Shortage space is fed. However, this ironing system also has the disadvantage of an external arrangement of the heat exchanger with all the consequences already described.

Darüber hinaus ist es bei Heissmuldenmangeln üblich, bei Bedarf die Leistung einer Mangel mit verhältnismässig wenig Aufwand durch Nachrüsten mit weiteren Mangeleinheiten zu erhöhen. Das ist bei der Bügelanlage gemäss der DE-A-2814 618 nicht möglich.In addition, in the case of hot trough defects, it is customary, if necessary, to increase the performance of a defect with relatively little effort by retrofitting with further defect units. This is not possible with the ironing system according to DE-A-2814 618.

Es ist Zweck der Erfindung, unter Vermeidung von Umweltbelastungen Energieverluste der Heissmuldenmangel zu verringern.The purpose of the invention is to reduce energy losses due to the lack of hot troughs while avoiding environmental pollution.

Der Erfindung liegt die Aufgabe zugrunde, eine Heissmuldenmangel zu schaffen, welche eine intensivere Ausnutzung der in der Abluft enthaltenen Wärme gestattet, wobei das dazu notwendige Wärmerückgewinnungssystem platzsparend im Inneren der Heissmuldenmangel angeordnet sein und ohne weiteres deren nachträgliche Erweiterung um zusätzliche Mangeleinheiten zulassen soll.The invention has for its object to provide a hot tub shortage, which allows a more intensive use of the heat contained in the exhaust air, the heat recovery system required for this purpose should be arranged in a space-saving manner inside the hot tub shortage and should allow its subsequent expansion by additional deficiency units.

Die Lösung dieser Aufgabe enthält der kennzeichnende Teil des ersten Patentanspruches. Weitere Ausgestaltungsmöglichkeiten der erfindungsgemässen Heissmuldenmangel sind den Patentansprüchen 2 bis 8 zu entnehmen.The solution to this problem is contained in the characterizing part of the first claim. Further design options for the lack of hot troughs according to the invention can be found in patent claims 2 to 8.

Ein sehr wesentlicher Vorteil der erfindungsgemässen Heissmuldenmangel besteht in der unmittelbaren Zuordnung eines Wärmeübertragers zu jeder Mangeleinheit. Dadurch wird der Wärmeübertrager bereits kurz nach dem Austritt der Abluft aus dem Mangelzylinder von dieser durchströmt. Die Wärmeverluste sind dementsprechend gering, Leitungen mit hohem Isolationsaufwand entfallen fast völlig.A very important advantage of the hot-tub ironer according to the invention is the direct assignment of a heat exchanger to each ironer unit. As a result, the heat exchanger is flowed through shortly after the exhaust air exits the ironing cylinder. The heat losses are accordingly low, and cables with a high level of insulation are almost completely eliminated.

Diese Zuordnung gestattet es weiterhin, in Verwirklichung des Baukastenprinzips jederzeit eine Erweiterung der Heissmuldenmangel um weitere Mangeleinheiten einschliesslich des zugehörigen Wärmeübertragers vorzunehmen.This assignment also makes it possible, in accordance with the modular principle, to expand the hot-tub shortage at any time by additional shortage units, including the associated heat exchanger.

Die nach dem Durchströmen der Wärmeübertrager erfolgende Einleitung der Abluft in einen Abluftsammelkanal ermöglicht die Ausstattung der Abzugseinrichtung mit einem einzigen Abluftventilator, der auf sämtliche vorhandenen Mangeleinheiten wirkt.The introduction of the exhaust air into an exhaust air collecting duct after the heat exchangers have flowed through enables the extraction device to be equipped with a single exhaust air fan which acts on all the existing deficiency units.

Im Falle des Vorhandenseins mehrerer Mangeleinheiten (Mehrmuldenmangel) ordnen sich die Strömungsräume der Wärmeübertrager, die für die Frischluft vorgesehen sind, zu einem durchgehenden Frischluftzuführkanal. Die Frischluft wird darin infolge des Passierens mehrerer Wärmeübertrager stufenweise erwärmt.If there are several shortage units (multi-well shortage), the flow spaces of the heat exchangers, which are provided for the fresh air, are arranged in a continuous fresh air supply duct. The fresh air is gradually heated as a result of passing several heat exchangers.

Entnommen wird die Frischluft dem Raum, der von der äusseren Begrenzung der Heissmuldenmangel gebildet wird. Das ist vorzugsweise der Innenraum eines Seitenständers, der bereits eine höhere Temperatur aufweist als die Umgebung der Heissmuldenmangel.The fresh air is taken from the room, which is formed by the outer limitation of the shortage of hot plates. This is preferably the interior of a side stand, which is already at a higher temperature than the area around the hot-tub shortage.

Zur Vermeidung unnötiger Verschmutzung der Strömungsräume der Wärmeübertrager ist die Ansaugöffnung des Frischluftzuführkanals mit einem Filter versehen, das z.B. Flusen und ähnliches zurückhält.In order to avoid unnecessary contamination of the flow areas of the heat exchangers, the intake opening of the fresh air supply duct is provided with a filter, which e.g. Retains lint and the like.

Besonders vorteilhaft ist es, wenn zwischen dieser Ansaugöffnung und einer in der äusseren Begrenzung der Heissmuldenmangel angebrachten Eintrittsöffnung für Umgebungsluft der Abluftventilator der Absaugeinrichtung angeordnet ist, dessen Antrieb auf diese Weise wirksam gekühlt wird.It is particularly advantageous if between this suction opening and an inlet opening for ambient air, which is provided in the outer limitation of the lack of hot troughs Air fan of the suction device is arranged, the drive is effectively cooled in this way.

Die von der Luftzuführeinrichtung geförderte und in den Wärmeübertragern erwärmte Frischluft wird einer Ausblaseinrichtung zugeführt, die sich gemeinsam mit den Mangelzylindern und den Mangelmulden in einem nahezu abgeschlossenen Mangelraum befindet. Dieser Mangelraum besitzt lediglich Ein- und Auslassöffnungen für die zu mangelnden Wäschestücke. Auf diese Weise wird dem Mangelraum trockene, jedoch bereits erhitzte Frischluft zugeführt. Diese besitzt ein hohes Trocknungspotential, ohne dass zusätzliche Energie aufgewendet werden muss.The fresh air conveyed by the air supply device and heated in the heat exchangers is fed to a blow-out device which is located together with the shortage cylinders and the shortage troughs in an almost closed shortage space. This mangle room only has inlet and outlet openings for the items to be mangled. In this way, dry but already heated fresh air is supplied to the shortage area. This has a high drying potential without the need for additional energy.

Die Ausblaseinrichtung soll im ersten Drittel des Mangelraumes, also in der Zone mit dem höchsten Wärmebedarf, angordnet sein.The blow-out device should be arranged in the first third of the shortage area, i.e. in the zone with the highest heat demand.

Ein besonderer Vorteil kann erzielt werden, wenn die Ausblaseinrichtung als an sich von Spanntrockenmaschinen her bekannter Düsenkasten ausgebildet ist. Dieser kann z.B. vor dem Einlauf in die erste Mangelmulde angeordnet sein und so zu einer wirksamen Trocknung der Wäschestücke beitragen.A particular advantage can be achieved if the blow-out device is designed as a nozzle box known per se from tension drying machines. This can e.g. be arranged before entering the first ironer and thus contribute to effective drying of the laundry items.

Im nachfolgenden soll die Erfindung anhand eines Ausführungsbeispiels näher erläutert werden.In the following, the invention will be explained in more detail using an exemplary embodiment.

In den Zeichnungen zeigen:

  • Fig.1 einen Längsschnitt durch eine erfindungsgemässe Heissmuldenmangel gemäss Schnittlinie I - I in Fig. 2 und
  • Fig. 2 einen teilweisen Querschnitt gemäss Schnittlinie 11 - II in Fig.1.
The drawings show:
  • 1 shows a longitudinal section through a hot trough shortage according to the invention along section line I - I in Fig. 2 and
  • 2 shows a partial cross section according to section line 11 - II in FIG. 1.

Eine Heissmuldenmangel, auf die sich die Erfindung bezieht, besteht in ihrem Grundaufbau im wesentlichen aus zwei Seitenständern 1, mindestens einem Mangelzylinder 2, der in den Seitenständern 1 drehbar gelagert ist und mindestens einer Mangelmulde 3. Der Mangelzylinder 2 wird von der Mangelmulde 3 auf einem Zentriwinkel von 120° bis 180° mantelseitig umschlossen. Es sind auch Heissmuldenmangeln bekannt, bei denen jedem Mangelzylinder 2 zwei derartige Mangelmulden 3 zugeordnet sind.A hot trough shortage, to which the invention relates, consists in its basic structure essentially of two side stands 1, at least one shortage cylinder 2, which is rotatably mounted in the side stands 1 and at least one shortage trough 3. The shortage cylinder 2 is from the shortage trough 3 on one Central angle from 120 ° to 180 ° enclosed on the casing side. There are also hot trough defects, in which two such lack troughs 3 are assigned to each lack cylinder 2.

Im vorliegenden Beispiel bilden jeweils ein Mangelzylinder 2, eine Mangelmulde 3, die ihnen als Gestell zugeordneten Abschnitte der Seitenständer 1 sowie der nicht dargestellte Antrieb eine Mangeleinheit 4. Fig. 1 zeigt demzufolge eine Mehrmuldenmangel mit drei aufeinanderfolgenden Mangeleinheiten 4. Die Mangelmulden 3 werden dabei durch Muldenbrücken 5 verbunden. Obwohl in der gewählten Schnittebene I - I die Mangelzylinder 2, Mangelmulden 3 und auch die Muldenbrücken 5 nicht erkennbar sind, wurden diese in Fig. 1 zur Verdeutlichung des Aufbaues der Heissmuldenmangel durch Strichlinien angedeutet.In the present example, each a shortage cylinder 2, a shortage trough 3, the sections of the side stand 1 assigned to them as a frame and the drive (not shown) form a shortage unit 4. FIG. 1 accordingly shows a multiple trough shortage with three successive shortage units 4. The shortage troughs 3 are thereby Trough bridges 5 connected. Although in the selected sectional plane I - I the shortage cylinders 2, shortage troughs 3 and also the trough bridges 5 are not recognizable, these have been indicated in FIG. 1 to illustrate the structure of the hot trough shortage by dashed lines.

Sowohl die Mangelmulden 3 als auch die Muldenbrücken 5 sind beheizt. Sie besitzen dafür Heizelemente, die zumeist von einem strömungsfähigen Wärmeträgermedium durchströmt werden. Das kann z.B. Heissdampf oder Wärmeträgeröl sein.Both the mangle troughs 3 and the trough bridges 5 are heated. For this purpose, they have heating elements which are mostly flowed through by a flowable heat transfer medium. This can e.g. Hot steam or heat transfer oil.

Sowohl die Heizelemente als auch das System der Heissmuldenmangel zur Versorgung mit dem Wärmeträgermedium wurden in den Zeichnungen, da für den vorliegenden Zusammenhang nicht von unmittelbarer Bedeutung, nicht dargestellt.Both the heating elements and the system of the lack of a hotplate for supplying the heat transfer medium were not shown in the drawings, since they are not of immediate importance for the present context.

Der ersten Mangeleinheit 4 ist eine an sich bekannte Eingabeeinheit 6 vorgeordnet. Die Mangelzylinder 2 sind als Hohlzylinder ausgeführt und besitzen eine perforierte Mantelfläche. Desgleichen ist auch ein Lagerzapfen jedes Mangelzylinders 2 hohl und bildet so eine Absaugöffnung 7, die in einen Luftverteilerkasten 8 mündet.The first deficiency unit 4 is preceded by an input unit 6 known per se. The lack cylinders 2 are designed as hollow cylinders and have a perforated outer surface. Likewise, a bearing pin of each mangle cylinder 2 is hollow and thus forms a suction opening 7 which opens into an air distribution box 8.

Jeder Mangeleinheit 4 ist ein Wärmeübertrager 9 mit zwei Strömungsräumen zugeordnet. Vorzugsweise sind die Wärmeübertrager 9 als Kreuzstrom-Plattenwärmeübertrager ausgebildet, so dass, wie in Fig. 2 zu erkennen ist, ein erster Strömungsraum 30 aus einer Vielzahl von zwischen den Platten des Wärmeübertragers bestehenden Spalten 1 0 und ein zweiter Strömungsraum 31 aus einer Vielzahl von Spalten 11 gebildet wird.Each deficiency unit 4 is assigned a heat exchanger 9 with two flow spaces. The heat exchangers 9 are preferably designed as cross-flow plate heat exchangers, so that, as can be seen in FIG. 2, a first flow space 30 consisting of a plurality of columns 10 between the plates of the heat exchanger and a second flow space 31 consisting of a plurality of columns 11 is formed.

Möglich im Sinne der Erfindung ist auch, dass die Wärmeübertrager 9 nach dem Gegen- oder Gleichstromprinzip arbeiten. Desgleichen können auch die Wärmeübertragungsflächen anders gestaltet sein, z.B. als Glasrohr-Wärmeübertrager. Vorteilhaft ist auch der Einsatz von Wärmerohren.It is also possible in the sense of the invention that the heat exchangers 9 operate according to the countercurrent or cocurrent principle. Likewise, the heat transfer surfaces can also be designed differently, e.g. as a glass tube heat exchanger. The use of heat pipes is also advantageous.

Die Wärmeübertrager 9 können auch, wie in Fig. 1 durch eine Strichlinie angedeutet, aus mehreren Wärmeübertrager-Bausteinen zusammengesetztsein.The heat exchangers 9 can also, as indicated by a broken line in FIG. 1, be composed of a plurality of heat exchanger modules.

Die Spalte 10 eines jeden Wärmeübertragers 9 sind einerseits über den Luftverteilerkasten 8 mit der Absaugöffnung 7 des zugehörigen Mangelzylinders 2 verbunden, andererseits münden sie in einen Abluftsammelkanal 12, der alle vorhandenen Mangeleinheiten 4 mit dem Abluftventilator 13 der Absaugeinrichtung verbindet. An den letzteren schliesst sich eine aus dem Mangelaufstellungsraum herausführende Abluftleitung 14 an.The gaps 10 of each heat exchanger 9 are connected on the one hand via the air distribution box 8 to the suction opening 7 of the associated mangle cylinder 2, on the other hand they open into an exhaust air collecting duct 12 which connects all existing mangle units 4 to the exhaust air fan 13 of the suction device. The latter is followed by an exhaust air duct 14 leading out of the ironing room.

Jeder Mangeleinheit 4 ist ausserdem eine Abluftmengenregeleinrichtung 15 zugeordnet. Diese kann, wie beispielsweise in Fig. 2, zwischen dem Wärmeübertrager 9 und dem Abluftsammelkanal 12, aber auch zwischen der Absaugöffnung 7 und dem Luftverteilerkasten 8 oder anderswo angeordnet sein.Each deficiency unit 4 is also assigned an exhaust air quantity control device 15. This can, as for example in FIG. 2, be arranged between the heat exchanger 9 and the exhaust air collecting duct 12, but also between the suction opening 7 and the air distribution box 8 or elsewhere.

Erfindungsgemäss bilden die aus den Spalten 11 bestehenden Strömungsräume 31 der Wärmeübertrager 9 einen durchgehenden Frischluftzuführkanal 16, der mit der Luftzuführeinrichtung 17 verbunden ist. Im einfachsten Fall einer Einmuldenmangel mit nur einer Mangeleinheit 4 wird der Frischluftzuführkanal 16 lediglich durch die Spalte 11 des einzigen vorhandenen Wärmeübertragers 9 gebildet.According to the invention, the flow spaces 31 of the heat exchangers 9 consisting of the columns 11 form a continuous fresh air supply duct 16 which is connected to the air supply device 17. In the simplest case of a single-cavity ironer with only one ironer unit 4, the fresh air supply duct 16 is formed only by the gaps 11 of the only available heat exchanger 9.

Eine Ansaugleitung 18 führt vom Frischluftzuführkanal 17 zum Frischluftventilator 19, während eine Druckleitung 20 in einer Ausblaseinrichtung 21 endet. Diese ist im vorliegenden Beispiel besonders vorteilhaft als Düsenkasten ausgebildet, wie er von Spanntrockenmaschinen hinreichend bekannt ist.An intake line 18 leads from the fresh air supply duct 17 to the fresh air fan 19, while a pressure line 20 ends in a blow-out device 21. This is be in the present example particularly advantageously designed as a nozzle box, as is well known from tension drying machines.

Die Ausblaseinrichtung 21 ist im ersten Drittel des von den Seitenständern 1, einer oberen Abdeckung 22, der von den Mangelmulden 3 und den Muldenbrücken 5 gebildeten geschlossenen Fläche sowie einer Vorderwand 23 und einer Rückwand 24 begrenzten, nahezu geschlossenen Mangelraumes 25 angeordnet.The blow-out device 21 is arranged in the first third of the almost closed lack space 25 delimited by the side stands 1, an upper cover 22, the closed surface formed by the lack troughs 3 and the trough bridges 5 and a front wall 23 and a rear wall 24.

Dieses erste Drittel des Mangelraumes 25 ist von den Erfordernissen des Mangelprozesses her der Abschnitt mit dem grössten Wärmebedarf. Aus Fig. 1 ist zu entnehmen, dass die Ausblaseinrichtung 21 unmittelbar vor der ersten Mangeleinheit4 angeordnet ist.This first third of the lack space 25 is the section with the greatest heat requirement in terms of the requirements of the lack process. It can be seen from FIG. 1 that the blow-out device 21 is arranged directly in front of the first mangle unit 4.

Die Ausblaseinrichtung 21 kann ebenso am Ende der ersten Mangeleinheit 4 und der ersten Muldenbrücke 5 angeordnet sein. Die Ansaugöffnung des Frischluftzuführkanals 16 befindet sich erfindungsgemäss innerhalb der äusseren Begrenzung der Heissmuldenmangel, vorzugsweise innerhalb des die Wärmeübertrager 9, die Luftverteilungskästen 8 und den Abluftsammelkanal 12 aufnehmenden Seitenständers 1.The blow-out device 21 can also be arranged at the end of the first mangle unit 4 and the first trough bridge 5. According to the invention, the suction opening of the fresh air supply duct 16 is located within the outer limitation of the shortage of hot troughs, preferably within the side stand 1 which receives the heat exchangers 9, the air distribution boxes 8 and the exhaust air collecting duct 12.

Die Ansaugöffnung ist vorteilhafterweise mit einem Filter 26 versehen, welches vor allem Flusen etc. zurückhält.The suction opening is advantageously provided with a filter 26, which mainly retains lint etc.

Die Rückwand 24 besitzt schliesslich in der Nähe des Abluftventilators 13 eine Öffnung 27, die den Eintritt von Luft aus der Umgebung der Heissmuldenmangel in den Seitenständer 1 gestattet.Finally, the rear wall 24 has an opening 27 in the vicinity of the exhaust air fan 13, which allows the entry of air from the vicinity of the hotplate shortage into the side stand 1.

Als besonders wesentliches Merkmal der Erfindung ist zusammenfassend zu bemerken, dass das gesamte vorstehend beschriebene Wärmerückgewinnungssystem einschliesslich der Absaug- und der Luftzuführeinrichtung innerhalb der äusseren Begrenzung der Heissmuldenmangel angeordnet ist, d.h., dass ausserhalb der Heissmuldenmangel die Anordnung jeglicher zusätzlicher Aggregate zur Verwirklichung einer Wärmerückgewinnung entfällt.As a particularly important feature of the invention, it should be noted in summary that the entire heat recovery system described above, including the suction and air supply device, is arranged within the outer limitation of the shortage of hot troughs, i.e. that outside of the shortage of hot troughs there is no need to arrange any additional units for realizing heat recovery.

Die Wirkungsweise der erfindungsgemässen Heissmuldenmangel istfolgendermassen:

  • Die zu mangelnden Wäschestücke werden in bekannter Weise der Eingabeeinheit 6 übergeben und durchlaufen nacheinander die Mangeleinheiten 4 der Heissmuldenmangel.
The mode of operation of the hotplate shortage according to the invention is as follows:
  • The items of laundry to be ironed are transferred to the input unit 6 in a known manner and pass through the ironing ironers 4 of the hot-tub ironer one after the other.

Infolge des Kontaktes der Wäschestücke mit den beheizten Mangelmulden 5 wird das in ihnen enthaltene Wasser verdampft. Der Wasserdampf tritt durch die Perforation des Mangelzylinders 2 in dessen Innenraum ein und bildet mit der durch die freie Oberseite des Mangelzylinders 2 eindringenden Luft ein Wasserdampf-Luft-Gemisch, die Abluft 28. Durch die Absaugöffnungen 7 tritt die Abluft 28 (durch Volllinienpfeile dargestellt) in die Luftverteilerkästen 8 und danach in die Spalte 10 der Wärmeübertrager 9 ein. Sie erreicht schliesslich den Abluftsammelkanal 12 und wird durch den Abluftventilator 13 über die Ablufleitung 14 aus der Heissmuldenmangel abgeführt.As a result of the laundry items coming into contact with the heated mangle troughs 5, the water contained in them is evaporated. The water vapor enters through the perforation of the mangle cylinder 2 into its interior and forms a water vapor-air mixture, the exhaust air 28, with the air entering through the free upper side of the mangle cylinder 2. The exhaust air 28 passes through the suction openings 7 (represented by solid line arrows). into the air distribution boxes 8 and then into the column 10 of the heat exchanger 9. It finally reaches the exhaust air collecting duct 12 and is discharged by the exhaust air fan 13 via the exhaust line 14 from the shortage of hot plates.

Entsprechend den konkreten Arbeitsbedingungen wird die Menge der aus den Mangelzylindern 2 zu fördernden Abluft 28 individuell für jede Mangeleinheit 4 durch die Abluftmengenregeleinrichtung 15 beeinflusst.In accordance with the specific working conditions, the amount of exhaust air 28 to be conveyed from the lack cylinders 2 is individually influenced by the exhaust air quantity control device 15 for each lack unit 4.

Unter der Wirkung des Frischluftventilators 19 der Luftzuführeinrichtung 17 tritt Frischluft 29 (durch Strichlinienpfeile dargestellt) aus dem Innenraum des Seitenständers 1 durch das Filter 26 in den Frischluftzuführkanal 16 ein. Sie wird durch Luft aus der Umgebung der Heissmuldenmangel ersetzt, die durch die Öffnung 27 in den Seitenständer 1 eintritt und dabei den Antrieb des Abluftventilators 13 wirksam kühlt.Under the action of the fresh air fan 19 of the air supply device 17, fresh air 29 (represented by dashed-line arrows) enters the fresh air supply duct 16 from the interior of the side stand 1 through the filter 26. It is replaced by air from the vicinity of the hot tub shortage, which enters the side stand 1 through the opening 27 and thereby effectively cools the drive of the exhaust air fan 13.

Die Frischluft 29 tritt beim Durchströmen des Frischluftzuführkanals 16 in einen intensiven, stufenweisen Wärmeübertragungsprozess mit der Abluft 28 und wird erhitzt. Die Abluft 28 gibt dabei einen erheblichen Teil der in ihr enthaltenen, sonst nutzlos abgeführten Wärmemenge an die Frischluft 29 ab. Eventuell dabei aus der Abluft 28 austauendes Muldengleitmittel wie z.B. Silikonöl sammelt sich in den Luftverteilerkästen 8 und kann auf einfache Weise aus diesen entfernt werden.The fresh air 29 enters an intensive, step-by-step heat transfer process with the exhaust air 28 as it flows through the fresh air supply duct 16 and is heated. The exhaust air 28 gives off a considerable part of the amount of heat contained therein, which is otherwise uselessly dissipated, to the fresh air 29. Trough lubricant which may be thawing from the exhaust air 28, e.g. Silicone oil collects in the air distribution boxes 8 and can be removed from them in a simple manner.

Die erhitzte Frischluft 29 tritt aus der Ausblaseinrichtung 21 in den Mangelraum 25 ein. Sie trifft dort auf die in die erste Mangeleinheit 4 einlaufenden feuchten und kalten Wäschestücke und bewirkt eine Beschleunigung des Trocknungsprozesses durch eine Vorwärmung dieser Wäschestücke. Ungeachtet dessen ermöglicht jedoch das Einblasen der erhitzten Frischluft 29 in den Mangelraum 25 ein gleichmässig hohes Temperaturniveau in diesem und spart wesentlich Energie, die sonst zum Erhitzen der Frischluft 29 durch die Mangelmulden 3 zusätzlich aufgebracht werden müsste.The heated fresh air 29 enters the deficiency space 25 from the blow-out device 21. There it meets the wet and cold laundry items entering the first ironer unit 4 and causes the drying process to be accelerated by preheating these laundry items. Irrespective of this, however, blowing the heated fresh air 29 into the shortage space 25 enables a uniformly high temperature level therein and saves a substantial amount of energy which would otherwise have to be additionally applied by the shortage troughs 3 to heat the fresh air 29.

Claims (8)

1. A hot-trough-type calender, especially a multi-trough-type calender, comprising at least a calender unit (4) substantially including a calender cylinder (2) having a perforated envelope surface and at least one heated calender trough (3) partially enclosing the surface of the calender cylinder (2) and a frame (1), extraction means for extracting exhaust air from the interior of said at least one calender cylinder (2), air supply means (17) for sucking in fresh air, and means for transferring the heat of one flow of air to another flow of air, characterised in that within an outer boundary of the hot-trough-type calender there is provided a heat recovery system having the following features:
a) every calender unit (4) has associated therewith a heat exchanger (9) including two flow spaces (30; 31),
b) the first flow space (30) of each heat exchanger (9) is communicated, on the one hand, to an exhaust port (7) of the corresponding calender cylinder (2) and, on the other hand, to the extraction means via an exhaust air collecting passage (12),
c) the respective second flow space (31) of each heat exchanger (9) is communicated to the air supply means (17), and said second flow spaces (31) of the provided heat exchangers (9) define a continuous fresh-air supply passageway (16),
d) the air supply means (17) terminates in blow-out means (21) which is provided in an almost enclosed calender space (25).
2. A hot-trough-type calender as claimed in claim 1, characterised in that every calender unit (4) has an individual exhaust air flow rate control means (15) associated therewith.
3. A hot-trough-type calender as claimed in claim 1, characterised in that the blow-out means (21) is provided in the first third of the calender space (25).
4. A hot-trough-type calender as claimed in claim 1, characterised in that the blow-out means (21) is disposed above a trough bridge (5).
5. A hot-trough-type calender as claimed in claims 1 and 3 or 4, characterised in that the blow-out means (21) is a per se known nozzle box.
6. A hot-trough-type calender as claimed in claim 1, characterised in that the suction port (16a) of the fresh-air supply passage (16) is likewise disposed within the outer boundary of the hot-trough-type calender.
7. A hot-trough-type calender as claimed in claims 1 and 6, characterised in that the suction port (16a) of the fresh-air supply passage (16) is provided with a filter (26).
8. A hot-trough-type calender as claimed in claims 1 and 6, characterised in that the exhaust air fan (13) of the extraction means is provided spatially between the suction port (16a) of the fresh-air supply passage (16) and an inlet port (27) for ambient air provided in the outer boundary of the hot-trough-type calender.
EP82108909A 1981-11-27 1982-09-27 Roller ironing machine, in particular machine having several rollers Expired EP0080573B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82108909T ATE19799T1 (en) 1981-11-27 1982-09-27 HOT TROUBLES, ESPECIALLY MULTIPLE TROUBLES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD81235194A DD207113A3 (en) 1981-11-27 1981-11-27 HEELMULDENMANGEL, IN PARTICULAR MULTILULENCE
DD235194 1981-11-27

Publications (3)

Publication Number Publication Date
EP0080573A2 EP0080573A2 (en) 1983-06-08
EP0080573A3 EP0080573A3 (en) 1984-05-16
EP0080573B1 true EP0080573B1 (en) 1986-05-14

Family

ID=5534966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108909A Expired EP0080573B1 (en) 1981-11-27 1982-09-27 Roller ironing machine, in particular machine having several rollers

Country Status (9)

Country Link
US (1) US4485571A (en)
EP (1) EP0080573B1 (en)
AT (1) ATE19799T1 (en)
BG (1) BG41757A1 (en)
CS (1) CS240449B1 (en)
DD (1) DD207113A3 (en)
DE (1) DE3271174D1 (en)
HU (1) HU192115B (en)
SU (1) SU1317048A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD262687A1 (en) * 1987-07-30 1988-12-07 Textima Veb K METHOD FOR OPERATING A DEVICE OF HEAT AND HEALTH DAMAGE HEREFUER
NL8900457A (en) * 1989-02-23 1990-09-17 Hooge Nv E DEVICE FOR IRONING LAUNDRY.
DE102006020003A1 (en) * 2006-04-26 2007-10-31 Herbert Kannegiesser Gmbh Method for recovering the heat energy emitted by laundry machines
DE102007043212A1 (en) 2007-03-19 2008-09-25 Herbert Kannegieser Gmbh Method for recovering the waste heat from heated laundry machines

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE468074C (en) * 1928-11-06 Heinz Andrich Lack of laundry trays
DE131918C (en) *
US3197896A (en) * 1960-12-08 1965-08-03 Fleissner Gmbh Apparatus for treating textile materials
CH625004A5 (en) * 1978-01-24 1981-08-31 Robert Theiler
DE3105846C2 (en) * 1980-02-19 1983-12-01 Herbert Kannegiesser Gmbh + Co, 4973 Vlotho Ironer for smoothing damp items of laundry
DE3006077A1 (en) * 1980-02-19 1981-08-20 Herbert Kannegiesser Gmbh + Co, 4973 Vlotho Laundry calender having pre-drying heated drum - followed by multiple suction-calender units using steam at 6-8 bar

Also Published As

Publication number Publication date
ATE19799T1 (en) 1986-05-15
BG41757A1 (en) 1987-08-14
DE3271174D1 (en) 1986-06-19
CS763082A1 (en) 1985-05-15
DD207113A3 (en) 1984-02-15
EP0080573A2 (en) 1983-06-08
EP0080573A3 (en) 1984-05-16
CS240449B1 (en) 1986-02-13
SU1317048A1 (en) 1987-06-15
HU192115B (en) 1987-05-28
US4485571A (en) 1984-12-04

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