EP0471162B2 - Convective drying and/or fixing apparatus - Google Patents
Convective drying and/or fixing apparatus Download PDFInfo
- Publication number
- EP0471162B2 EP0471162B2 EP91109687A EP91109687A EP0471162B2 EP 0471162 B2 EP0471162 B2 EP 0471162B2 EP 91109687 A EP91109687 A EP 91109687A EP 91109687 A EP91109687 A EP 91109687A EP 0471162 B2 EP0471162 B2 EP 0471162B2
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- European Patent Office
- Prior art keywords
- pressure
- box
- nozzle
- boxes
- machine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
Definitions
- the invention relates to a convection drying and / or fixing machine for the thermal treatment of a broadly guided textile fabric according to the preamble of claim 1.
- a convection drying and / or fixing machine for the thermal treatment of a broadly guided textile fabric according to the preamble of claim 1.
- Such a machine is known from DE-OS 27 54 438.
- DE-PS 36 27 904 describes a convection drying and / or fixing machine which has at least one fan which is assigned to a common pressure chamber for the lower and upper nozzle box.
- a separate or independent pressure setting on the upper and lower nozzle box can be achieved if, according to DE-OS 29 08 348, a separate pressure box with fan is assigned to each nozzle box.
- a pressure chamber with a fan is provided below the lower nozzle box and above the upper nozzle box. In this way, the air systems of the lower and upper nozzle box can be completely separated from each other, but the overall height of the machine is increased, for example, compared to the case of the machine according to the aforementioned DE-PS 36 27 904 C2, at least by the vertical dimension of a fan.
- DE-PS 9 27 974 describes a device for the continuous shrinking treatment of textile webs, in which nozzle boxes are also provided above and below the textile web, from which the textile web is to be blown simultaneously with a treatment gas from above and below.
- Each of these nozzle boxes has a fan directly at the nozzle box entrance assigned.
- the two fans are one above the other and can be driven by a single motor via a common shaft. This allows the overall height of the entire machine to be reduced, but the arrangement of the fans directly at the nozzle box inlet means that either the pressure distribution within the connected nozzle box becomes uneven in the direction of transport of the goods (which would not interfere with the tumbler application according to this patent specification ), or fans with fans must be provided in close succession along the length of the machine with a correspondingly high effort.
- DE-OS 27 54 438 describes a machine for drying thread sheets or coated carpets.
- Two separate fans are provided for loading three superimposed web levels with corresponding pairs of nozzle boxes. Since the two middle nozzle boxes are geometrically both upper and lower nozzle boxes, the two fans must work in the same way (same temperature, same pressure).
- the spatial structure of the machine with fans provided on both longitudinal sides of the machine is disadvantageous in practice, since access to the inside of the machine, where regular maintenance has to be carried out, is made correspondingly more difficult.
- DE-OS 22 01 731 describes a tensioning machine whose heating and air delivery devices are integrated in a single radial fan.
- the radial fan has a fan wheel with two flow spaces lying axially one behind the other with suction openings arranged coaxially to one another.
- the impeller of the fan is divided so that it can suck in two air streams that flow through two concentrically arranged suction openings. With such an impeller alone, it is not possible to supply separately controlled air flows at different pressures to the lower and upper nozzle boxes.
- the flow ratio is rather fixed in terms of design.
- DE-PS 78 282 describes a drying machine with two fans located on a common axis.
- the inflow and outflow spaces of the two fans are located side by side in the machine.
- the fan for ventilation of the upper nozzle box is located in a different housing than the fan assigned to the lower nozzle box.
- the two fans have a common drive shaft, a different speed setting and thus independent control of the air volume setting for upper and lower air is not possible in this case either.
- the invention has for its object to design the above-mentioned machine so that an independent control of the pressure, in particular also the temperature, in the lower and upper nozzle box is possible with substantially unchanged overall height and without loss of performance.
- two fans are thus arranged in separate pressure boxes in the space below the height of the lower nozzle box.
- the two fans are approximately in the same range as in the case of DE-PS 36 27 904, but they are offset in the direction transverse to the direction of transport of the fabric to be treated so that each of the fans is one over the (in the Direction of pressure measured) over the entire length of the nozzle box can lead from the fan to the nozzle box.
- Such a pressure box ensures an even pressure distribution at the inlet of the nozzle box.
- one pressure box is cut off from the direct access to the return flow space by the other pressure box for reasons of geometry. To counter this problem.
- a feedthrough is provided through the pressure box inlet part facing the return flow chamber and is designed as an intake pipe of the fan mounted in the other pressure box inlet part. Since each of the fans does not require more volume for the air delivery than previously for supplying both nozzle boxes together, no more space is required for the pressure boxes in the direction transverse to the transport direction than according to the prior art.
- both nozzle boxes have a common return flow space and a common heating via heat exchangers, a separate temperature setting on the top and bottom of the fabric web to be treated cannot be easily achieved.
- the backflow chamber is divided into separate rooms and the heat exchanger is divided into two partial heat exchangers.
- the return gas coming from the lower and upper nozzle box is conducted in separate ways via separate heat exchangers to the area below the lower nozzle box and is fed there to the two fans via separate channels.
- a vertical section perpendicular to the longitudinal direction of the machine which is designed in the embodiment as a so-called tensioning frame, is shown schematically.
- the tensioning frame When the tensioning frame is operated, the fabric web 1 to be treated is held in chains 2 and 3 at its longitudinal edges in the transport direction of the fabric web, that is, in the direction perpendicular to the plane of the drawing, passed between two nozzle boxes 4 and 5.
- One nozzle box namely the upper nozzle box 4
- the other nozzle box namely the lower nozzle box 5
- the nozzle boxes 4 and 5 have (not shown) hole or slot nozzles for blowing out treatment gas in the direction of arrow 6 from above and below onto the fabric web 1.
- the treatment gas is in each case with the help of two fans 7 and 8 in the direction of arrows 9 and 10 Nozzle boxes 4 and 5 upstream pressure box 11 and 12 promoted and ge reaches during normal operation of the machine through the pressure box outputs assigned to the nozzle box inlets 13 and 14 into the nozzle boxes 4 and 5.
- the fans 7 and 8 should have independently controllable motors 15 and 16. From there, the treatment gas flows in the direction of the arrow 6 onto the fabric web 1 and from it essentially in the direction of the arrow 17 and 18 into the backflow space of the machine, generally designated 19, and from there via a heat exchanger or the like, generally designated 20 in the direction of the arrow 21 and 22 the suction side of the respective fan 7 or 8 supplied.
- the two fans 7 and 8 according to FIGS. 1 to 3 are arranged substantially at the same height above the floor 23 below the level of the lower nozzle box 5 within the inlet parts 24 and 25 of the pressure boxes 11 and 12 respectively.
- the fan wheels 7, 8 offset in the direction of their axes one behind the other, and in Fig. 3 they are next to each other at the same height.
- the two pressure box input parts 24, 25 extend at approximately the same height next to one another essentially over the entire nozzle box dimension measured in the transport direction 26 (FIG. 2) of the fabric web 1. In this way, the front pressure box input part 24 cuts off the rear pressure box input part 25 from the backflow space 19 itself.
- the formation of the print box input parts 24 and 25 and the print boxes 11 and 12 over the entire length of the print box extending in the transport direction 26 is important, however, in order to achieve an even pressure distribution over the length of the print box at the print box exit or at the print box input 13 and 14.
- These contradicting conditions are solved according to the invention in the following way: through a passage through the pressure chamber 24 designed as a suction pipe 27 (FIG. 2), the treatment medium (including air) flows from the backflow chamber 19 to the fan 8 of the rear pressure box inlet part 25.
- a suction pipe 27 interferes the air flow within the front pressure box inlet part 24 is not, so that a pressure distribution can be achieved in both nozzle boxes 4 and 5, which can be individually varied in any manner and is uniformly adjustable over the entire pressure box area.
- the temperature in the upper and lower pressure boxes 4, 5 is also to be regulated separately, it is provided according to a further invention to divide the return flow space 19 into separate return flow partial spaces 28 for the upper pressure boxes 4 and 29 for the lower pressure box 5.
- the heat exchanger 20 is divided into two partial heat exchangers 30 and 31 for the backflow partial spaces 28 and 29.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Drying Of Solid Materials (AREA)
- Paper (AREA)
Abstract
Description
Die Erfindung betrifft eine Konvektions-Trocken- und/oder -fixiermaschine zum thermischen Behandeln einer breitgeführten textilen Stoffbahn gemäß Oberbegriff des Patentanspruchs 1. Eine solche Maschine ist durch die DE-OS 27 54 438 bekannt.The invention relates to a convection drying and / or fixing machine for the thermal treatment of a broadly guided textile fabric according to the preamble of
In DE-PS 36 27 904 wird eine Konvexions-Trocken und/oder -fixiermaschine beschrieben, welche mindestens einen Ventilator besitzt, der einem für den unteren und oberen Düsenkasten gemeinsamen Druckraum zugeordnet ist.DE-PS 36 27 904 describes a convection drying and / or fixing machine which has at least one fan which is assigned to a common pressure chamber for the lower and upper nozzle box.
Eine getrennte bzw. unabhängige Druckeinstellung am oberen und unteren Düsenkasten läßt sich erreichen, wenn nach DE-OS 29 08 348 jedem Düsenkasten ein gesonderter Druckkasten mit Ventilator zugeordnet wird. Im Bekannten wird vorgesehen, unterhalb des unteren Düsenkastens und oberhalb des oberen Düsenkastens je einen Druckraum mit Ventilator vorzusehen. Auf diese Weise lassen sich die Luftsysteme des unteren und oberen Düsenkastens zwar voll voneinander trennen, die Bauhöhe der Maschine wird aber beispielsweise gegenüber dem Fall der Maschine nach der vorgenannten DE-PS 36 27 904 C2 mindestens um die vertikale Abmessung eines Ventilators erhöht.A separate or independent pressure setting on the upper and lower nozzle box can be achieved if, according to DE-OS 29 08 348, a separate pressure box with fan is assigned to each nozzle box. In the known, it is provided that a pressure chamber with a fan is provided below the lower nozzle box and above the upper nozzle box. In this way, the air systems of the lower and upper nozzle box can be completely separated from each other, but the overall height of the machine is increased, for example, compared to the case of the machine according to the aforementioned DE-PS 36 27 904 C2, at least by the vertical dimension of a fan.
In DE-PS 9 27 974 wird eine Vorrichtung zur kontinuierlichen Schrumpfbehandlung von Textilbahnen beschrieben, bei der ebenfalls ober- und unterhalb der Textilbahn Düsenkästen vorgesehen werden, aus denen die Textilbahn mit einem Behandlungsgas von oben und unten gleichzeitig zu beblasen ist. Jedem dieser Düsenkästen wird ein Ventilator unmittelbar am Düsenkasteneingang zugeordnet. Die beiden Ventilatoren liegen übereinander und können über eine gemeinsame Welle von einem einzigen Motor angetrieben werden. Dadurch läßt sich die Bauhöhe der ganzen Maschine zwar reduzieren, die Anordnung der Ventilatoren unmittelbar am Düsenkasteneingang hat aber zur Folge, daß entweder die Druckverteilung innerhalb des angeschlossenen Düsenkastens in Transportrichtung der Ware ungleichmäßig wird (was bei der Tumbler-Anwendung nach dieser Patentschrift nicht stören würde), oder es müssen Gebläse mit Ventilatoren in dichter Folge auf der Länge der Maschine mit entsprechend hohem Aufwand vorgesehen werden.DE-PS 9 27 974 describes a device for the continuous shrinking treatment of textile webs, in which nozzle boxes are also provided above and below the textile web, from which the textile web is to be blown simultaneously with a treatment gas from above and below. Each of these nozzle boxes has a fan directly at the nozzle box entrance assigned. The two fans are one above the other and can be driven by a single motor via a common shaft. This allows the overall height of the entire machine to be reduced, but the arrangement of the fans directly at the nozzle box inlet means that either the pressure distribution within the connected nozzle box becomes uneven in the direction of transport of the goods (which would not interfere with the tumbler application according to this patent specification ), or fans with fans must be provided in close succession along the length of the machine with a correspondingly high effort.
In DE-OS 27 54 438 wird eine Maschine zum Trocknen von Fadenscharen oder beschichteten Teppichen beschrieben. Es werden zwei getrennte Ventilatoren zur Beaufschlagung von drei übereinanderliegenden Bahnebenen mit entsprechenden Düsenkastenpaaren vorgesehen. Da hierbei die beiden mittleren Düsenkästen geometrisch zugleich obere und untere Düsenkästen sind, müssen die beiden Ventilatoren in gleicher Weise (gleiche Temperatur, gleicher Druck) arbeiten. Der räumliche Aufbau der Maschine mit an beiden Maschinenlängsseiten vorgesehenen Ventilatoren ist für die Praxis nachteilig, da der Zugang zum Maschineninnern, wo regelmäßig Wartungen auszuführen sind, entsprechend erschwert wird.DE-OS 27 54 438 describes a machine for drying thread sheets or coated carpets. Two separate fans are provided for loading three superimposed web levels with corresponding pairs of nozzle boxes. Since the two middle nozzle boxes are geometrically both upper and lower nozzle boxes, the two fans must work in the same way (same temperature, same pressure). The spatial structure of the machine with fans provided on both longitudinal sides of the machine is disadvantageous in practice, since access to the inside of the machine, where regular maintenance has to be carried out, is made correspondingly more difficult.
In DE-OS 22 01 731 wird eine Spannmaschine beschrieben, deren Heiz- und Luftfördereinrichtungen in einem einzigen Radiallüfter integriert sind. Der Radiallüfter besitzt ein Lüfterrad mit zwei axial hintereinander liegenden Strömungsräumen mit koaxial zueinander angeordneten Ansaugöffnungen. Das Laufrad des Lüfters wird also so unterteilt, daß es zwei Luftströme ansaugen kann, die durch zwei konzentrisch angeordnete Ansaugöffnungen strömen. Mit einem solchen Laufrad allein ist es nicht möglich, dem unteren und oberen Düsenkasten getrennt gesteuerte Luftströme mit unterschiedlichem Druck zuzuleiten. Das Strömungsverhältnis ist vielmehr konstruktiv fest vorgegeben.DE-OS 22 01 731 describes a tensioning machine whose heating and air delivery devices are integrated in a single radial fan. The radial fan has a fan wheel with two flow spaces lying axially one behind the other with suction openings arranged coaxially to one another. The impeller of the fan is divided so that it can suck in two air streams that flow through two concentrically arranged suction openings. With such an impeller alone, it is not possible to supply separately controlled air flows at different pressures to the lower and upper nozzle boxes. The flow ratio is rather fixed in terms of design.
In DE-PS 78 282 wird eine Trockenmaschine mit zwei auf einer gemeinsamen Achse befindlichen Ventilatoren beschrieben. Die Zu- und Abströmräume der beiden Ventilatoren befinden sich in der Maschine nebeneinander. Der Ventilator zur Belüftung des oberen Düsenkastens sitzt in einem anderen Gehäuse als der dem unteren Düsenkasten zugeordnete Ventilator. Da aber die beiden Ventilatoren eine gemeinsame Antriebswelle besitzen, ist eine unterschiedliche Drehzahleinstellung und damit eine unabhängige Steuerung der Luftmengeneinstellung für Ober- und Unterluft auch in diesem Fall nicht möglich.DE-PS 78 282 describes a drying machine with two fans located on a common axis. The inflow and outflow spaces of the two fans are located side by side in the machine. The fan for ventilation of the upper nozzle box is located in a different housing than the fan assigned to the lower nozzle box. However, since the two fans have a common drive shaft, a different speed setting and thus independent control of the air volume setting for upper and lower air is not possible in this case either.
Der Erfindung liegt die Aufgabe zugrunde, die eingangs genannte Maschine so auszubilden, daß bei im wesentlichen unveränderter Bauhöhe und ohne Leistungseinbuße eine unabhängige Steuerung des Drucks, insbesondere auch der Temperatur, im unteren und oberen Düsenkasten möglich ist.The invention has for its object to design the above-mentioned machine so that an independent control of the pressure, in particular also the temperature, in the lower and upper nozzle box is possible with substantially unchanged overall height and without loss of performance.
Die erfindungsgemäße Lösung wird für die gattungsgemäße Maschine im Patentanspruch 1 beschrieben.The solution according to the invention is described for the generic machine in
Erfindungsgemäß werden also in dem Raum unterhalb der Höhe des unteren Düsenkastens zwei Ventilatoren in getrennten Druckkästen angeordnet. Die beiden Ventilatoren liegen in etwa im selben Bereich wie im Fall der DE-PS 36 27 904, sie sind aber in Richtung quer zur Transportrichtung der zu behandelnden Stoffbahn gegeneinander so versetzt, daß sich von jedem der Ventilatoren aus ein sich über die (in der Transportrichtung gemessene) gesamte Lange des Düsenkastens erstreckender Druckkasten vom Ventilator zum Düsenkasten führen kann. Ein solcher Druckkasten gewährleistet eine gleichmäßige Druckverteilung am Düsenkasteneingang. Bei der erfindungsgemäßen Konstruktion wird der eine Druckkasten aus Gründen der Geometrie durch den anderen Druckkasten von dem unmittelbaren Zugang zum Rückströmraum abgeschnitten. Um diesem Problem zu begegnen. wird erfindungsgemäß eine Durchführung durch den dem Rückströmraum zugewandten Druckkasteneingangsteil vorgesehen und als Ansaugrohr des im anderen Druckkasteneingangsteil montierten Ventilators ausgebildet. Da für die Luftförderung jedes der Ventilatoren nicht mehr Volumen benötigt wird als früher für die Versorgung beider Düsenkästen zusammen, wird für die Druckkästen auch in Richtung quer zur Transportrichtung nicht mehr Platz als nach dem Stand der Technik benötigt.According to the invention, two fans are thus arranged in separate pressure boxes in the space below the height of the lower nozzle box. The two fans are approximately in the same range as in the case of DE-PS 36 27 904, but they are offset in the direction transverse to the direction of transport of the fabric to be treated so that each of the fans is one over the (in the Direction of pressure measured) over the entire length of the nozzle box can lead from the fan to the nozzle box. Such a pressure box ensures an even pressure distribution at the inlet of the nozzle box. In the construction according to the invention, one pressure box is cut off from the direct access to the return flow space by the other pressure box for reasons of geometry. To counter this problem. According to the invention, a feedthrough is provided through the pressure box inlet part facing the return flow chamber and is designed as an intake pipe of the fan mounted in the other pressure box inlet part. Since each of the fans does not require more volume for the air delivery than previously for supplying both nozzle boxes together, no more space is required for the pressure boxes in the direction transverse to the transport direction than according to the prior art.
Auch bei bereits in der Praxis eingeführten Maschinen nach der DE-PS 36 27 904 werden im Bereich unterhalb des unteren Düsenkastens zwei Ventilatoren - freilich in einem gemeinsamen einheitlichen Druckraum - vorgesehen, um die nötige Ventilatorleistung mit wirtschafflich vertretbarem Aufwand zu erreichen. Hierzu kommt erfindungsgemäß als Aufwand zur Lösung der Aufgabe hinzu, daß der einheitliche Druckraum in zwei getrennte Druckräume zu unterteilen ist, daß der dadurch vom Rückströmraum abgeschnittene Druckkasten mit einem durch den anderen Druckraum führenden Ansaugrohr ausgestattet wird, und daß die beiden Ventilatoren den zugehörigen Druckräumen entsprechend gegenseitig um etwa eine Ventilatorlänge zu versetzen sind.Even with machines already introduced in practice according to DE-PS 36 27 904, two fans are provided in the area below the lower nozzle box - albeit in a common, uniform pressure chamber - in order to achieve the necessary fan performance with economically justifiable effort. To this end, according to the invention, there is an additional effort to solve the problem that the uniform pressure chamber is to be divided into two separate pressure chambers, that the pressure box cut off from the return flow chamber is equipped with an intake pipe leading through the other pressure chamber, and that the two fans correspond to the associated pressure chambers are mutually offset by about one fan length.
Mit Hilfe der beiden getrennten Druckräume läßt sich eine entsprechend unabhängige Druckeinstellung in den beiden Düsenkästen erreichen. Wenn jedoch, was in erster Linie vorgesehen ist, beide Düsenkästen einen gemeinsamen Rückströmraum und eine gemeinsame Heizung über Wärmetauscher besitzen, läßt sich eine getrennte Temperatureinstellung auf der Ober- und Unterseite der zu behandelnden Stoffbahn nicht ohne weiteres erreichen. Das wird dadurch möglich, daß der Rückströmraum in getrennte Räume und der Wärmetauscher in zwei Teilwärmetauscher unterteilt ist. Bei dieser weiteren Ausgestaltung der Erfindung kann bevorzugt vorgesehen werden, das vom unteren und oberen Düsenkasten kommende Rückströmgas auf getrennten Wegen über getrennte Wärmetauscher in den Bereich unterhalb des unteren Düsenkastens zu leiten und dort über getrennte Kanäle den beiden Ventilatoren zuzuführen.With the help of the two separate pressure chambers, a correspondingly independent pressure setting can be achieved in the two nozzle boxes. If, however, what is primarily provided, both nozzle boxes have a common return flow space and a common heating via heat exchangers, a separate temperature setting on the top and bottom of the fabric web to be treated cannot be easily achieved. This is made possible by the fact that the backflow chamber is divided into separate rooms and the heat exchanger is divided into two partial heat exchangers. In this further embodiment of the invention, it can preferably be provided that the return gas coming from the lower and upper nozzle box is conducted in separate ways via separate heat exchangers to the area below the lower nozzle box and is fed there to the two fans via separate channels.
Anhand der schematischen Darstellung in der beiliegenden Zeichnung werden Einzelheiten der Erfindung erläutert. Es zeigen:
- Fig. 1
- einen Schnitt durch eine Konvektions-Trocken- und/oder-fixiermaschine quer zur Transportrichtung einer zu behandelnden Stoffbahn;
- Fig. 2
- einen Schnitt längs der Linie II-II von Fig. 1; und
- Fig. 3
- einen Schnitt längs der Linie III-III von Fig. 1.
- Fig. 1
- a section through a convection drying and / or fixing machine transversely to the direction of transport of a fabric to be treated;
- Fig. 2
- a section along the line II-II of Fig. 1; and
- Fig. 3
- a section along the line III-III of Fig. 1st
In Fig. 1 wird ein vertikaler Schnitt senkrecht zur Längsrichtung der Maschine, die im Ausführungsbeispiel als sogenannter Spannrahmen ausgebildet ist, schematisch dargestellt Bei Betrieb des Spannrahmens wird die zu behandelnde Stoffbahn 1 in Ketten 2 und 3 an ihren Längsrändern gehalten in der Transportrichtung der Stoffbahn, das heißt in Richtung senkrecht zur Zeichnungsebene, zwischen zwei Düsenkästen 4 und 5 hindurchgeführt Der eine Düsenkasten, nämlich der obere Düsenkasten 4, befindet sich oberhalb der Stoffbahn 1, und der andere Düsenkasten, nämlich der untere Düsenkasten 5, befindet sich unterhalb der Stoffbahn 1. Die Düsenkästen 4 und 5 besitzen (nicht gezeichnete) Loch- oder Schlitzdüsen zum Ausblasen von Behandlungsgas in Pfeilrichtung 6 von oben und unten auf die Stoffbahn 1. Das Behandlungsgas wird mit Hilfe von zwei Ventilatoren 7 und 8 in Pfeilrichtung 9 und 10 in je einen den Düsenkästen 4 und 5 vorgeschalteten Druckkasten 11 und 12 gefördert und gelangt bei Normalbetrieb der Maschine durch die den Düsenkasteneingängen 13 und 14 zugeordneten Druckkastenausgänge in die Düsenkästen 4 und 5 hinein. Die Ventilatoren 7 und 8 sollen unabhängig voneinander steuerbare Motoren 15 und 16 besitzen. Von dort fließt das Behandlungsgas in Pfeilrichtung 6 auf die Stoffbahn 1 und wird von dieser im wesentlichen in Pfeilrichtung 17 und 18 in den insgesamt mit 19 bezeichneten Rückströmraum der Maschine und von dort über einen insgesamt mit 20 bezeichneten Wärmetauscher oder dergleichen in Pfeilrichtung 21 bzw. 22 der Saugseite des jeweiligen Ventilators 7 oder 8 zugeführt.In Fig. 1, a vertical section perpendicular to the longitudinal direction of the machine, which is designed in the embodiment as a so-called tensioning frame, is shown schematically. When the tensioning frame is operated, the
Erfindungsgemäß werden die beiden Ventilatoren 7 und 8 nach Fig. 1 bis 3 im wesentlichen in gleicher Höhe über Boden 23 unterhalb des Niveaus des unteren Düsenkastens 5 innerhalb von Eingangsteilen 24 bzw. 25 der Druckkästen 11 und 12 angeordnet In der Ansicht nach Fig. 1 liegen also die ventilatorräder 7, 8 versetzt in Richtung ihrer Achsen hintereinander, und in Fig. 3 liegen sie auf gleicher Höhe nebeneinander. Die beiden Druckkasteneingangsteile 24, 25 erstrecken sich auf etwa gleicher Höhe nebeneinander im wesentlichen über die ganze, in der Transportrichtung 26 (Fig. 2) der Stoffbahn 1 gemessene Düsenkastenausdehnung. Auf diese Weise schneidet das vordere Druckkasteneingangsteil 24 das hintere Druckkasteneingangsteil 25 vom Rückströmraum 19 an sich ab. Die Ausbildung der Druckkasteneingangsteile 24 und 25 sowie der Druckkästen 11 und 12 über die ganze sich in Transportrichtung 26 erstreckende Druckkastenlänge ist aber wichtig, um am Druckkastenausgang bzw. am Druckkasteneingang 13 und 14 eine Ober die Druckkastenlänge gleichmäßige Druckverteilung zu erreichen. Diese sich widersprechenden Bedingungen werden erfindungsgemäß in folgender Weise gelöst: Durch eine als Ansaugrohr 27 (Fig. 2) ausgebildete Durchführung durch den Druckraum 24 strömt das Behandlungsmedium (u.a. Luft) vom Rückströmraum 19 zum Ventilator 8 des hinteren Druckkasteneingangsteils 25. Ein solches Ansaugrohr 27 stört die Luftführung innerhalb des vorderen Druckkasteneingangsteils 24 nicht, so daß in beiden Düsenkästen 4 und 5 eine Druckverteilung erreichbar ist, die in beliebiger Weise einzeln variierbar und über die ganze Druckkastenfläche gleichmäßig einstellbar ist.According to the invention, the two
Wenn außer der Druckverteilung auch die Temperatur im oberen und unteren Druckkasten 4, 5 getrennt geregelt werden soll, wird gemäß weiterer Erfindung vorgesehen, den Rückströmraum 19 in getrennte Rückströmteilräume 28 für den oberen Druckkasten 4 und 29 für den unteren Druckkasten 5 zu unterteilen. Entsprechend wird der Wärmetauscher 20 in zwei Teil-Wärmetauscher 30 und 31 für die Rückströmteilräume 28 und 29 unterteilt. Außerdem werden zusätzlich zu einer horizontalen Trennwand 32, die zum Leiten der rückströmenden Gase durch den Wärmetauscher 20 ohnehin erforderlich ist, weitere Trennwände 33 vorgesehen, die eine getrennte Führung des rückströmenden Behandlungsgases in Pfeilrichtung 17 vom unteren Druckkasten 5 über den Teil-Wärmetauscher 31 zum Ventilator 7 und vom oberen Druckkasten 4 in Pfeilrichtung 18 durch den Teil-Wärmetauscher 30 zum Ventilator 8 sicherstellen.If, in addition to the pressure distribution, the temperature in the upper and
- 1 =1 =
- StoffbahnFabric panel
- 2, 3 =2, 3 =
- KetteChain
- 4, 5 =4, 5 =
- DüsenkästenNozzle boxes
- 6 =6 =
- PfeilrichtungArrow direction
- 7,8 =7.8 =
- VentilatorenFans
- 9, 10 =9, 10 =
- PfeilrichtungArrow direction
- 11, 12 =11, 12 =
- DruckkästenPrint boxes
- 13, 14 =13, 14 =
- DruckkasteneingangPrint box entrance
- 15, 16 =15, 16 =
- Motoren (7, 8)Motors (7, 8)
- 17, 18 =17, 18 =
- PfeilrichtungArrow direction
- 19 =19 =
- RückströmraumBackflow space
- 20 =20 =
- WärmetauscherHeat exchanger
- 21, 22 =21, 22 =
- PfeilrichtungArrow direction
- 23 =23 =
- Bodenground
- 24, 25 =24, 25 =
- Eingangsteil (11, 12)Entry part (11, 12)
- 26 =26 =
- TransportrichtungDirection of transport
- 27 =27 =
- AnsaugrohrIntake pipe
- 28, 29 =28, 29 =
- RückströmteilraumBackflow compartment
- 30, 31 =30, 31 =
- Teil-Wärmetauscher (20)Partial heat exchanger (20)
- 32 =32 =
- Horizontale TrennwandHorizontal partition
- 33 =33 =
- Weitere TrennwändeMore partitions
Claims (2)
- Convection drying and/or fixing machine for thermally treating a textile fabric web (1), tightened in its width transversely to the direction of conveying (26), with a treatment gas, the machine comprising nozzle boxes (4, 5) each connected to a blower (7, 8) and extending above and below the fabric web (1) across its width, and a common return flow space (19) connected behind the nozzle boxes (4, 5) in the flow direction (17, 18) of the treatment gas, from which the treatment gas is conducted, via a heat exchanger (20), to the suction side of the blowers (7, 8), wherein each of the two blowers (7, 8) is mounted in its own pressure chest (11, 12), connected upstream of the associated nozzle box (4, 5), wherein the two blowers (7, 8) are disposed substantially at the same level above the floor below the level of the lower nozzle box (5) inside inlet portions (24, 25) of the associated pressure chests (11, 12), and wherein the inlet portions (24, 25) of the two pressure chests (11, 12) extend substantially over the entire extent of the nozzle boxes, as measured in the conveying direction (26),
characterized in that
the inlet portions (24, 25) of the two pressure chests (11, 12) are disposed alongside each other, that the two valves (7, 8) are offset from each other in the conveying direction (26), and that the inlet of the pressure chest (12) cut off from the return flow space (19) possesses an intake pipe (27) leading through the inlet portion of the other pressure chest (11) to the return flow space (19). - Machine according to claim 1, characterized in that the return flow space (19) is subdivided into separate spaces (28, 29) and the heat exchanger (20) into two partial heat exchangers (30, 31).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT91109687T ATE91543T1 (en) | 1990-08-17 | 1991-06-13 | CONVECTION DRYING AND/OR FIXING MACHINE. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4026107 | 1990-08-17 | ||
DE4026107A DE4026107A1 (en) | 1990-08-17 | 1990-08-17 | CONVECTION DRY AND / OR FIXER |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0471162A1 EP0471162A1 (en) | 1992-02-19 |
EP0471162B1 EP0471162B1 (en) | 1993-07-14 |
EP0471162B2 true EP0471162B2 (en) | 1997-07-16 |
Family
ID=6412449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91109687A Expired - Lifetime EP0471162B2 (en) | 1990-08-17 | 1991-06-13 | Convective drying and/or fixing apparatus |
Country Status (8)
Country | Link |
---|---|
US (1) | US5203094A (en) |
EP (1) | EP0471162B2 (en) |
JP (1) | JP3021812B2 (en) |
KR (1) | KR100218114B1 (en) |
AT (1) | ATE91543T1 (en) |
CZ (1) | CZ279973B6 (en) |
DE (2) | DE4026107A1 (en) |
ES (1) | ES2044651T5 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10047834A1 (en) * | 2000-09-27 | 2002-04-18 | Monforts Textilmaschinen Gmbh | textile machine |
DE102005013650A1 (en) * | 2005-03-24 | 2006-10-05 | A. Monforts Textilmaschinen Gmbh & Co. Kg | Apparatus for continuous thermal treatment of textile web, has conveying chains with needles securing longitudinal side edges of textile web and alternately passing web up and down through return chain wheels |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0648882B1 (en) * | 1993-10-15 | 1997-11-26 | Solipat Ag | Device for thermal treatment of a continuously moving web, especially a textile web |
DE19622000A1 (en) * | 1996-05-31 | 1997-12-04 | Brueckner Trockentechnik Gmbh | Drying and / or fixing device |
DE19804396A1 (en) * | 1998-02-04 | 1999-08-05 | Brueckner Apparatebau Gmbh | Device for the heat treatment of a web |
DE19807511C2 (en) * | 1998-02-21 | 2003-04-10 | Monforts Textilmaschinen Gmbh | Drying and / or fixing device |
DE19844692A1 (en) * | 1998-09-29 | 2000-03-30 | Brueckner Apparatebau Gmbh | Device for the heat treatment of a web |
JP4511005B2 (en) * | 2000-08-30 | 2010-07-28 | 井上金属工業株式会社 | Drying equipment |
DE10229368B4 (en) | 2002-06-29 | 2007-04-05 | Moenus Textilmaschinen Gmbh | Recirculating air dryer for webs |
IT1399461B1 (en) * | 2010-04-13 | 2013-04-19 | Unitech Textile Machinery Spa | Stenter. |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE497035C (en) * | 1930-05-01 | Hermann Haas | Dryer with air delivery device for ventilating flat objects on both sides, such as paper boards, pieces of tissue and the like. Like., in the cycle | |
DE1099838B (en) * | 1952-10-08 | 1961-02-16 | Svenska Flaektfabriken Ab | Method and device for the floating conveyance of material, especially moist cellulose fiber webs |
DE1785636A1 (en) * | 1964-04-16 | 1973-11-15 | Famatex Gmbh Fabrik Fuer Texti | DEVICE FOR FASTENING FABRICS OR KNITTED FABRICS OR FABRICS |
DE2201731A1 (en) * | 1972-01-14 | 1973-07-19 | Brueckner Trockentechnik Kg | Heat-treatment appts - for accurate heating of textiles, eg lengths of carpet, to different temps on both sides |
DE2217667C2 (en) * | 1972-04-12 | 1982-09-09 | Vepa AG, 4125 Riehen, Basel | Sealing device for a band damper |
US4137649A (en) * | 1973-04-21 | 1979-02-06 | Vepa Ag | Apparatus for the heat treatment of textiles |
DE2320480C3 (en) * | 1973-04-21 | 1980-05-14 | Vepa Ag, Riehen B. Basel (Schweiz) | Textile heat treatment device, in particular tenter frames |
DE2908348A1 (en) * | 1979-03-03 | 1980-09-04 | Vits Maschinenbau Gmbh | FLOATING DRYER |
DE2927974C2 (en) * | 1979-07-11 | 1985-08-08 | Vepa AG, Riehen, Basel | Device for the continuous shrink treatment of textile webs |
JPS57207128A (en) * | 1981-06-15 | 1982-12-18 | Daido Steel Co Ltd | Correcting method for snaking |
US4425719A (en) * | 1982-03-15 | 1984-01-17 | W. R. Grace & Co. | Compact air bar assembly for contactless web support |
DE3627904A1 (en) * | 1986-08-16 | 1988-02-18 | Monforts Gmbh & Co A | CONVECTION DRYING AND / OR FIXING MACHINE |
US4754558A (en) * | 1987-07-16 | 1988-07-05 | Wolverine Corporation | Material treatment system |
-
1990
- 1990-08-17 DE DE4026107A patent/DE4026107A1/en not_active Withdrawn
-
1991
- 1991-06-13 ES ES91109687T patent/ES2044651T5/en not_active Expired - Lifetime
- 1991-06-13 EP EP91109687A patent/EP0471162B2/en not_active Expired - Lifetime
- 1991-06-13 DE DE9191109687T patent/DE59100186D1/en not_active Expired - Fee Related
- 1991-06-13 AT AT91109687T patent/ATE91543T1/en not_active IP Right Cessation
- 1991-07-22 KR KR1019910012519A patent/KR100218114B1/en not_active IP Right Cessation
- 1991-08-14 CZ CS912514A patent/CZ279973B6/en not_active IP Right Cessation
- 1991-08-14 JP JP3204136A patent/JP3021812B2/en not_active Expired - Fee Related
- 1991-08-19 US US07/746,877 patent/US5203094A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10047834A1 (en) * | 2000-09-27 | 2002-04-18 | Monforts Textilmaschinen Gmbh | textile machine |
DE102005013650A1 (en) * | 2005-03-24 | 2006-10-05 | A. Monforts Textilmaschinen Gmbh & Co. Kg | Apparatus for continuous thermal treatment of textile web, has conveying chains with needles securing longitudinal side edges of textile web and alternately passing web up and down through return chain wheels |
Also Published As
Publication number | Publication date |
---|---|
ES2044651T3 (en) | 1994-01-01 |
EP0471162A1 (en) | 1992-02-19 |
DE4026107A1 (en) | 1992-02-20 |
KR100218114B1 (en) | 1999-09-01 |
ES2044651T5 (en) | 1997-10-16 |
JP3021812B2 (en) | 2000-03-15 |
DE59100186D1 (en) | 1993-08-19 |
CZ279973B6 (en) | 1995-09-13 |
US5203094A (en) | 1993-04-20 |
ATE91543T1 (en) | 1993-07-15 |
CS251491A3 (en) | 1992-02-19 |
KR920004807A (en) | 1992-03-28 |
JPH05187771A (en) | 1993-07-27 |
EP0471162B1 (en) | 1993-07-14 |
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