EP0315590A2 - Convection cooling vessel for materials exhibiting surfaces - Google Patents

Convection cooling vessel for materials exhibiting surfaces Download PDF

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Publication number
EP0315590A2
EP0315590A2 EP88810733A EP88810733A EP0315590A2 EP 0315590 A2 EP0315590 A2 EP 0315590A2 EP 88810733 A EP88810733 A EP 88810733A EP 88810733 A EP88810733 A EP 88810733A EP 0315590 A2 EP0315590 A2 EP 0315590A2
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EP
European Patent Office
Prior art keywords
cooling chamber
chamber according
fan
shut
flaps
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.)
Granted
Application number
EP88810733A
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German (de)
French (fr)
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EP0315590A3 (en
EP0315590B1 (en
Inventor
Bernard Hilge
Carl Kramer
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.)
3A Composites International AG
Original Assignee
Alusuisse Holdings AG
Schweizerische Aluminium AG
Alusuisse Lonza Services Ltd
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Publication date
Application filed by Alusuisse Holdings AG, Schweizerische Aluminium AG, Alusuisse Lonza Services Ltd filed Critical Alusuisse Holdings AG
Priority to AT88810733T priority Critical patent/ATE100929T1/en
Publication of EP0315590A2 publication Critical patent/EP0315590A2/en
Publication of EP0315590A3 publication Critical patent/EP0315590A3/en
Application granted granted Critical
Publication of EP0315590B1 publication Critical patent/EP0315590B1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • F27B9/3011—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases arrangements for circulating gases transversally
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means
    • F27D2007/045—Fans

Definitions

  • the invention relates to a cooling chamber for the conventional cooling of flat material in arrangements with flowable gaps, in particular of so-called block batches of light metal semi-finished products, of the type specified in the preamble of claim 1.
  • Such areal goods can be, for example, a plurality of layers of light metal bolts which are stacked on top of one another and which are subjected to the cooling process with an initial material temperature of 580 ° C.
  • the mass of such a batch can be 25 t and more.
  • 8,000,000 to 10,000,000 KJ (8-10 GJ) of thermal energy must be dissipated in the first hours of the cooling process.
  • cooling chamber in which air circulation is generated with the aid of fans.
  • cooling chambers two basic types, namely cooling chambers that work in an open circuit and cooling chambers that use the principle of the closed circuit.
  • ambient air is blown onto the batch and then extracted from the cooling chamber, while in cooling chambers with a closed circuit, the air conveyed by the fan, after being removed from the cooling chamber, is usually a water-cooled heat exchanger serving cooler and then flows through the goods to be cooled.
  • reversing In order to achieve sufficient cooling uniformity and thus a homogeneous temperature distribution in the cooling chamber in these cooling processes, so-called “reversing” is used, that is, a reversal of the direction of flow of the blowing air. This reversal is effected almost exclusively by reversing the direction of rotation of the axial fan used as a flow drive.
  • this solution which is simple in terms of complexity, has a decisive disadvantage: a fan that is suitable for reversing the flow must not have a leading or a guide vane and must also have blades that are set at 45 °, so that the flow rate in both directions at least is approximately the same.
  • DE-OS 30 49 162 Another solution known from DE-OS 30 49 162 is to direct the blowing air onto the charge by means of a fan and to change the direction of the air flow by means of an adjustment flap.
  • a fan a fan
  • an adjustment flap a device that changes the direction of the air flow by means of an adjustment flap.
  • a cooling chamber for convection cooling of flat material in arrangements with flow-through gaps of the specified type finally emerges from DE-OS 32 15 509.
  • a fan pushes the gas flow through the gaps in the flat material;
  • the direction of the gas flow can be controlled by cover plate-like slide plates.
  • the basic disadvantage of this device is that the flow through the interstices in the material takes place only on the pressure side of the fan, that is to say the charge from which the cooling air is blown. This blowing with the help of jets that pass through the gaps in the flat material results in locally very different cooling speeds, which are not compatible with the high requirements for uniform temperature distribution when cooling high-quality light metal batches after homogenization.
  • the invention is therefore based on the object of creating a cooling chamber for convection cooling of flat material in arrangements with flowable spaces, in particular of so-called block batches of light metal semi-finished products, of the type specified, in which the disadvantages mentioned above do not occur.
  • a device which also ensures a very uniform temperature distribution over the entire material to be cooled if extremely large material masses have to be treated.
  • the advantages achieved with the invention are based on the fact that the spaces in the flat material are flowed through by a precisely defined partial flow of the air flow sucked in by the fan and the material is thereby cooled, as a result of which the cooling can be precisely defined. Nevertheless, the entire flow rate is available on the fan, so that the operating temperature of the fan can be kept within limits by mixing the blowing air with fresh air. This in turn enables the use of industrial fans with conventional storage and drive technology without having to use special embodiments of high-temperature fans.
  • the material By arranging the material on the suction side of the fan, a uniform flow through the spaces in the material is achieved; the direction of flow can be changed as desired using the flaps. This is a great advantage in comparison with devices in which the direction of rotation of the fan has to be changed, since when the direction of rotation of the fan changes, the fan has to be started up, braked and restarted, which is the case with permanent operation drove to considerable design and wear problems. Finally, with the device according to the invention, the gaps in the material can also be flowed through in a closed circuit, which has proven to be extremely advantageous, particularly in the case of holding phases.
  • Additional special flaps can be installed in the side walls for special requirements, for example if holding times at certain temperatures are to be achieved with such a cooling chamber.
  • the cooling chamber shown in the figures receives a block batch 12 which, as shown in FIG. 1, consists of a stack of several layers of light metal bolts.
  • the block batch 12 rests on a conventional base 14, the height of which can be adjusted by a schematically indicated adjusting device.
  • a cooling medium generally air
  • the block batch 12 is surrounded by a heat-insulated housing 16 with side walls 16 a and a false ceiling 16 b, which has such a distance from the side surfaces of the block batch 12 that between the side walls 16 a of the housing 16 and the block batch 12 channels 13 a, 13 b arise for the supply and discharge of the blowing air.
  • a powerful axial fan 18 with a guide wheel is arranged vertically and symmetrically above the block batch 12, that is to say above the false ceiling 16 b, which conveys into a blow-out channel 20 arranged vertically above the axial fan 18.
  • This blow-out channel 20 can be completely or partially closed by a shut-off and regulating flap 22.
  • At least one connecting duct 24 a, 24 b, each with a shutter flap 26 a, 26 b serving as a shut-off and regulating flap is provided.
  • These connecting channels 24 a, 24 b each open into an inflow channel 28 a, 28 b arranged laterally from the block charge 12.
  • shutter flaps 30 a, 30 b serving as shut-off and regulating flaps are also built into the inflow channels 28 a, 28 b.
  • the axial fan 18 is connected to a downpipe 32 with a left leg 32 a, a right leg 32 b and a collecting pipe 32 c.
  • a shut-off and regulating flap 34 a, 34 b In each leg 32 a, 32 b there is a shut-off and regulating flap 34 a, 34 b.
  • the legs 32 a, 22 b face the channels 13 a, 28 a and 13 b, 28 b, while the collecting tube 32 c is connected to the axial fan 18.
  • swivel flaps 36 a, 36 b are provided, which are located approximately at the level of the false ceiling 16 b and the channels 13 a, 13 b on the two sides of the block batch 12 between their side walls and the side walls 16 a of the housing 16 open or close.
  • swing flaps 36 a, 36 b are formed by sections of the insulated side walls 16 a.
  • the cooling medium air is sucked in by the axial fan 18 through the spaces in the block charge 12, the corresponding flow direction being predetermined by setting the respective louvre flaps. Since the shape of the flow cross sections tapering towards the block charge 12, jet-like impacts and thus uneven cooling are avoided.
  • the blind flap 34 a located in the right leg 32 a of the downpipe 32 is closed and the blind flap located in the left leg 32 a 34 b open.
  • the louver flap 30 a in the inflow channel 28 a must be opened and the louver flap 30 in the inflow channel 28 b must be closed.
  • the air sucked in by the axial fan 18 now flows through the inflow duct 28 a in the direction of the arrows on the right side of the block batch 12 through the duct 13 a downwards, through the spaces in the block batch 12, on the left side of the Block batch 12 through the channel 13 b upwards and then through the left leg 32 b of the downpipe 32 and the collecting tube 32 c to the axial fan 18, which conveys the air into the blow-out channel 20.
  • the extracted air flow can be specifically mixed with fresh air in order to achieve certain temperature effects.
  • the operating temperature of the fan 18 can be kept within limits.
  • the flaps 36 a, 36 b are pivoted into the channels 13 a, 13 b and thus close the housing 16.
  • the temperature of the block charge 12 hardly changes during such a holding phase, so that the additional installation of a heater is unnecessary in almost all cases.
  • the cooling chamber 10 can also be operated in a closed circuit. This is particularly useful when the block batch 12 must be kept at a certain temperature in the holding phases.
  • the inlet cross sections of the two legs 32 a, 32 b of the downpipe 32 and the cross sections of the inflow channels 28 a, 28 b and the channels 13 a, 13 b have a rectangular shape; the long rectangular axis corresponds to the zone length, for which a fan is provided; the conversion from the rectangular cross section to the circular suction cross section of the axial fan 18 takes place in the collecting pipe 32 c of the downpipe 32.
  • the channels 13 a, 13 b on the two sides of the block batch 12 are provided with flow control devices.
  • soundproofing devices can be provided in the blow-out duct.
  • the fan 18 is designed as an axial fan; however, a radial fan can also be used in the same way.

Abstract

A convection cooling vessel for materials exhibiting surfaces in arrangements with interspaces which can be flowed through, in particular of block charges made of light metal semifinished products, has a fan which delivers into an exhaust duct and on the suction side of which a forked pipe is arranged; on each leg of the forked pipe, there is a shut-off and control valve. Provided symmetrically in relation to the material are inflow ducts which are assigned to the legs of the forked pipe. Each inflow duct has a further shut-off and control valve. The shut-off and control valves in the forked pipe and in the inflow ducts can be adjusted in such a manner that, because of the suction effect of the fan, the material can be flowed through in the main flow or in the part flow and the flow direction of the cooling medium can be reversed. <IMAGE>

Description

Die Erfindung betrifft eine Abkühl-Kammer zur Konvenktionskühlung von flächenhaftem Gut in Anordnungen mit strömbaren Zwischenräumen, insbesonde­re von sogenannten Block-Chargen aus Leichtmetall-Halbzeugen, der im Ober­begriff des Anspruchs 1 angegebenen Gattung.The invention relates to a cooling chamber for the conventional cooling of flat material in arrangements with flowable gaps, in particular of so-called block batches of light metal semi-finished products, of the type specified in the preamble of claim 1.

Bei der Wärmebehandlung von Gutstapeln, z.B. Leichtmetall-Block-Chargen, nach dem Homogenisierungsglühen muß eine hoch wirksame, möglichst gleich­mäßige Abkühlung des Gutes vorgenommen werden. Diese Abkühlung muß, in Ab­hängigkeit von den metallurgischen Vorgaben, gesteuert oder durch Halte­phasen, bei denen sich die Temperatur nicht ändern darf, unterbrochen werden.In the heat treatment of stacks of goods, e.g. Light metal block batches, after the homogenization annealing a highly effective, as uniform as possible cooling of the material must be carried out. Depending on the metallurgical specifications, this cooling must be controlled or interrupted by holding phases during which the temperature must not change.

Bei solchen flächenhaften Gütern kann es sich beispielsweise um mehrere, zu einem Stapel aufeinandergelegte Schichten aus Leichtmetall-Bolzen handeln, die mit einer Anfangs-Materialtemperatur von 580°C dem Abkühlvorgang unterworfen werden. Die Masse einer derartigen Charge kann 25 t und mehr betragen. Dabei müssen in den ersten Stunden des Abkühlvorganges 8 000 000 bis 10 000 000 KJ (8 - 10 GJ) an Wärmeenergie abgeführt werden.Such areal goods can be, for example, a plurality of layers of light metal bolts which are stacked on top of one another and which are subjected to the cooling process with an initial material temperature of 580 ° C. The mass of such a batch can be 25 t and more. Thereby, 8,000,000 to 10,000,000 KJ (8-10 GJ) of thermal energy must be dissipated in the first hours of the cooling process.

Diese Zahlen veranschaulichen die mit der Kühlung einer solchen Charge ver­bundenen Probleme, insbesondere unter Berücksichtigung des Gesichtspunktes, daß die Temperaturen der einzelnen Bolzen einer solchen Charge, die eine Vielzahl von Bolzen enthalten kann, sich während des Abkühlvorganges nur um einige Grad C voneinander unterscheiden dürfen.These numbers illustrate the problems associated with cooling such a batch, especially considering that the temperatures of the individual bolts of such a batch, which may contain a plurality of bolts, may differ only by a few degrees C during the cooling process.

Zur Lösung dieses Kühlproblems ist es üblich, die zu kühlende Charge in eine Kammer, die sogenannte "Abkühl-Kammer" einzubringen, in der mit Hilfe von Ventilatoren eine Luftzirkulation erzeugt wird. Bei solchen Abkühl-­Kammern unterscheidet man zwei Grundtypen, nämlich Abkühl-Kammern, die im offenen Kreislauf arbeiten, sowie Abkühl-Kammern, die das Prinzip des ge­schlossenen Kreislaufes ausnutzen.To solve this cooling problem, it is customary to introduce the batch to be cooled into a chamber, the so-called "cooling chamber", in which air circulation is generated with the aid of fans. In such cooling chambers, a distinction is made between two basic types, namely cooling chambers that work in an open circuit and cooling chambers that use the principle of the closed circuit.

Bei den Abkühl-Kammern mit offenem Kreislauf wird Umgebungsluft auf die Charge aufgeblasen und anschließend aus der Abkühl-Kammer abgezogen, während bei Abkühl-Kammern mit geschlossenem Kreislauf die vom Ventilator geförderte Luft nach dem Abziehen aus der Abkühl-Kammer einen meist wasser­gekühlten, als Wärmetauscher dienenden Kühler und dann das zu kühlende Gut durchströmt.In the cooling chambers with an open circuit, ambient air is blown onto the batch and then extracted from the cooling chamber, while in cooling chambers with a closed circuit, the air conveyed by the fan, after being removed from the cooling chamber, is usually a water-cooled heat exchanger serving cooler and then flows through the goods to be cooled.

Um bei diesen Kühlverfahren die ausreichende Gleichmäßigkeit der Abkühlung und damit eine homogene Temperaturverteilung in der Abkühl-Kammer zu er­reichen, nutzt man die sogenannte "Reversierung", also eine Umkehr der Strömungsrichtung der Beblasungsluft. Diese Reversierung wird nahezu aus­schließlich durch Umkehr der Drehrichtung des als Strömungsantrieb benutzten Axialventilators bewirkt. Diese, vom Aufwand her einfache Lösung hat jedoch einen entscheidenden Nachteil: Ein zur Reversierung der Strömung geeigneter Ventilator darf weder ein Vor- noch ein Nachleitrad besitzen und muß außerdem Schaufeln haben, die unter 45° eingestellt sind, damit die Strömungsleistung in den beiden Richtungen zumindest näherungsweise gleich ist. Durch diese Einschränkung in der Auslegung des Axialventilators wird jedoch die Möglichkeit einer Druckerhöhung für das Beblasungsmedium und damit eine Verbesserung des Wirkungsgrades stark begrenzt, so daß bei Chargen mit hohen Durchströmwiderständen, wie sie bei flächenhaften Gütern in Anordnungen mit durchströmbaren Zwischenräumen gegeben sind, nicht die zur Erziehlung der hohen Abkühlgeschwindigkeiten erforderlichen großen Volumenströme erreicht werden. Dies gilt insbesondere dann, wenn bei geschlossenem Kreislauf zusätzlich ein Kühlaggregat durch­strömt werden muß.In order to achieve sufficient cooling uniformity and thus a homogeneous temperature distribution in the cooling chamber in these cooling processes, so-called "reversing" is used, that is, a reversal of the direction of flow of the blowing air. This reversal is effected almost exclusively by reversing the direction of rotation of the axial fan used as a flow drive. However, this solution, which is simple in terms of complexity, has a decisive disadvantage: a fan that is suitable for reversing the flow must not have a leading or a guide vane and must also have blades that are set at 45 °, so that the flow rate in both directions at least is approximately the same. This limitation in the design of the axial fan, however, severely limits the possibility of an increase in pressure for the blowing medium and thus an improvement in the efficiency, so that in batches with high flow resistances, such as those with flat goods in arrangements with flowable gaps are given, the large volume flows required to achieve the high cooling rates cannot be achieved. This applies in particular if a cooling unit must also be flowed through in a closed circuit.

Eine andere, aus der DE-OS 30 49 162 bekannte Lösung besteht darin, die Be­blasungsluft mittels eines Ventilators auf die Charge zu richten und durch eine Verstellklappe die Richtung des Luftstroms zu ändern. Eine solche Vorrichtung ist jedoch nur für einfache Trockner geeignet, an die keine besonders hohen Anforderungen in Bezug auf die gleichmäßige Abkühlung über ein großes Gut-Volumen gestellt werden; bei den hohen Anforderungen an eine gleichmäßige Temperaturverteilung, wie sie für die Abkühlung von LeichtmetallChargen erforderlich ist, führt diese Vorrichtung nicht zum gewünschten Ergebnis.Another solution known from DE-OS 30 49 162 is to direct the blowing air onto the charge by means of a fan and to change the direction of the air flow by means of an adjustment flap. However, such a device is only suitable for simple dryers to which no particularly high demands are made with regard to uniform cooling over a large volume of material; Given the high requirements for an even temperature distribution, as is required for cooling light metal batches, this device does not lead to the desired result.

Entsprechende Nachteile gelten auch für das aus der DE-OS 26 00 724 bekannte Luftumwälzgerät.Corresponding disadvantages also apply to the air circulation device known from DE-OS 26 00 724.

Eine Abkühl-Kammer zur Konvektionskühlung von flächenhaftem Gut in An­ordnungen mit durchströmbaren Zwischenräumen der angegebenen Gattung geht schließlich aus der DE-OS 32 15 509 hervor. Dabei drückt ein Ventilator den Gasstrom durch die Zwischenräume in dem flächenhaftem Gut hindurch; um die angestrebte, gleichmäßige Temperaturverteilung über das gesamte Volumen des Gutes zu erhalten, kann die Richtung des Gasstromes durch abdeckplatten­artige Schieberplatten gesteuert werden. Der grundsätzliche Nachteil dieser Vorrichtung liegt darin, daß die Durchströmung der Zwischenräume in dem Gut nur auf der Druckseite des Ventilators erfolgt, also die Charge von der die Kühlung herbeiführende Luft angeblasen wird. Durch dieses Anblasen mit Hilfe von Strahlen, die durch die Zwischenräume in dem flächenhaften Gut treten, ergeben sich örtlich sehr unterschiedliche Abkühlgeschwindigkeiten, die mit den hohen Anforderungen an die gleichmäßige Temperaturverteilung beim Abkühlen hochwertiger Leichtmetall-Chargen nach dem Homogenisieren nicht vereinbar sind.A cooling chamber for convection cooling of flat material in arrangements with flow-through gaps of the specified type finally emerges from DE-OS 32 15 509. A fan pushes the gas flow through the gaps in the flat material; In order to obtain the desired, uniform temperature distribution over the entire volume of the goods, the direction of the gas flow can be controlled by cover plate-like slide plates. The basic disadvantage of this device is that the flow through the interstices in the material takes place only on the pressure side of the fan, that is to say the charge from which the cooling air is blown. This blowing with the help of jets that pass through the gaps in the flat material results in locally very different cooling speeds, which are not compatible with the high requirements for uniform temperature distribution when cooling high-quality light metal batches after homogenization.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Abkühl-Kammer zur Konvektionskühlung von flächenhaftem Gut in Anordnungen mit durchströmbaren Zwischenräumen, insbesondere von sogenannten Blockchargen aus Leichtmetall-­Halbzeugen, der angegebenen Gattung zu schaffen, bei der die oben erwähnten Nachteile nicht auftreten.The invention is therefore based on the object of creating a cooling chamber for convection cooling of flat material in arrangements with flowable spaces, in particular of so-called block batches of light metal semi-finished products, of the type specified, in which the disadvantages mentioned above do not occur.

Insbesondere soll eine Vorrichtung vorgeschlagen werden, die auch dann eine sehr gleichmäßige Temperaturverteilung über das gesamte zu kühlende Gut ge­währleistet, wenn extrem große Gut-Massen behandelt werden müssen.In particular, a device is to be proposed which also ensures a very uniform temperature distribution over the entire material to be cooled if extremely large material masses have to be treated.

Dies wird erfindungsgemäß durch die im kennzeichenden Teil des Anspruchs 1 angegebenen Merkmale erreicht.This is achieved according to the invention by the features specified in the characterizing part of claim 1.

Zweckmäßige Ausführungsformen werden durch die Merkmale der Unteransprüche definiert.Appropriate embodiments are defined by the features of the subclaims.

Die mit der Erfindung erzielten Vorteile beruhen darauf, daß die Zwischen­räume in dem flächenhaften Gut von einem genau definierten Teilstrom des vom Ventilator angesaugten Luftstroms durchströmt und dadurch das Gut ge­kühlt werden, wodurch sich die Abkühlung genau definieren läßt. Trotzdem steht an dem Ventilator der gesamte Förderstrom zur Verfügung, wodurch sich durch die Mischung der Beblasungsluft mit Frischluft die Betriebstemperatur des Ventilators in Grenzen halten läßt. Dies ermöglicht wiederum die Verwendung von Industrie-Ventilatoren mit üblicher Lager- und Antriebstech­nik, ohne daß spezielle Ausführungsformen von Hochtemperatur-Ventilatoren eingesetzt werden müssen.The advantages achieved with the invention are based on the fact that the spaces in the flat material are flowed through by a precisely defined partial flow of the air flow sucked in by the fan and the material is thereby cooled, as a result of which the cooling can be precisely defined. Nevertheless, the entire flow rate is available on the fan, so that the operating temperature of the fan can be kept within limits by mixing the blowing air with fresh air. This in turn enables the use of industrial fans with conventional storage and drive technology without having to use special embodiments of high-temperature fans.

Durch die Anordnung des Gutes auf der Saugseite des Ventilators wird eine gleichmäßige Durchströmung der Zwischenräume in dem Gut erzielt; die Strömungsrichtung kann mittels der Klappen nach Belieben gewechselt werden. Dies stellt im Vergleich mit Einrichtungen, bei denen hierzu die Dreh­richtung des Ventilators geändert werden muß, einen großen Vorteil dar, da bei einer Änderung der Drehrichtung des Ventilators dieser jeweils ange­fahren, abgebremst und erneut hochgefahren werden muß, was beim Dauerbe­ trieb zu erheblichen Auslegungs- und Verschleißproblemen führt. Schließlich können mit der erfindungsgemäßen Vorrichtung die Zwischenräume in dem Gut auch im geschlossenen Kreislauf durchströmt werden, was sich insbesondere bei Haltephasen als äußerst vorteilhaft erweist.By arranging the material on the suction side of the fan, a uniform flow through the spaces in the material is achieved; the direction of flow can be changed as desired using the flaps. This is a great advantage in comparison with devices in which the direction of rotation of the fan has to be changed, since when the direction of rotation of the fan changes, the fan has to be started up, braked and restarted, which is the case with permanent operation drove to considerable design and wear problems. Finally, with the device according to the invention, the gaps in the material can also be flowed through in a closed circuit, which has proven to be extremely advantageous, particularly in the case of holding phases.

Für besondere Anforderungen, nämlich wenn beispielsweise mit einer solchen Abkühl-Kammer Haltezeiten bei bestimmten Temperaturen realisiert werden sollen, können zusätzliche Schenkklappen in den Seitenwänden installiert werden.Additional special flaps can be installed in the side walls for special requirements, for example if holding times at certain temperatures are to be achieved with such a cooling chamber.

Bei entsprechender Wärme-Isolierung der Abkühl-Kammer ändert sich die Tem­peratur des Gutes in der Haltephase kaum, so daß sich in nahezu allen Fällen der zusätzliche Einbau einer Heizung erübrigt.With appropriate heat insulation of the cooling chamber, the temperature of the goods hardly changes in the holding phase, so that the additional installation of a heater is unnecessary in almost all cases.

Die Erfindung wird im folgenden anhand eines Ausführungsbeispiels unter Be­zugnahme auf die beiliegenden, schematischen Zeichnungen näher erläutert. Es zeigen

  • Fig. 1 einen Querschnitt durch eine Abkühl-Kammer, und
  • Fig. 2 die Abkühl-Kammer nach Fig. 1 teilweise im Längsschnitt und teilweise in der Seitenansicht.
The invention is explained below using an exemplary embodiment with reference to the accompanying schematic drawings. Show it
  • Fig. 1 shows a cross section through a cooling chamber, and
  • Fig. 2, the cooling chamber of FIG. 1 partly in longitudinal section and partly in side view.

Die aus den Figuren ersichtliche, allgemein durch das Bezugszeichen 10 angedeutete Abkühl-Kammer nimmt eine Block-Charge 12 auf, die gemäß der Darstellung in Fig. 1 aus einem Stapel von mehreren Lagen aus Leichtmetall-­Bolzen besteht. Die Block-Charge 12 ruht auf einer üblichen Unterlage 14, deren Höhe durch eine schematisch angedeutete Verstelleinrichtung verstellt werden kann.The cooling chamber shown in the figures, generally indicated by the reference numeral 10, receives a block batch 12 which, as shown in FIG. 1, consists of a stack of several layers of light metal bolts. The block batch 12 rests on a conventional base 14, the height of which can be adjusted by a schematically indicated adjusting device.

Zwischen den einzelnen Leichtmetall-Bolzen der Block-Charge 12 entstehen zwangsläufig Zwischenräume, die auf noch zu erläuternde Weise von einem Kühlmedium, im allgemeinen Luft, durchströmt werden.Between the individual light metal bolts of the block batch 12 inevitably gaps, which are flowed through in a manner to be explained by a cooling medium, generally air.

Die Block-Charge 12 ist von einem wärmeisolierten Gehäuse 16 mit Seiten­wänden 16 a und einer Zwischendecke 16 b umgeben, das einen solchen Abstand von den Seitenflächen der Block-Charge 12 hat, daß zwischen den Seiten­wänden 16 a des Gehäuses 16 und der Block-Charge 12 Kanäle 13 a, 13 b für die Zu- bzw. Abführung der Beblasungsluft entstehen.The block batch 12 is surrounded by a heat-insulated housing 16 with side walls 16 a and a false ceiling 16 b, which has such a distance from the side surfaces of the block batch 12 that between the side walls 16 a of the housing 16 and the block batch 12 channels 13 a, 13 b arise for the supply and discharge of the blowing air.

Lotrecht und symmetrisch über der Block-Charge 12, also über der Zwischen­decke 16 b ist ein leistungsfähiger Axialventilator 18 mit Nachleitrad angeordnet, der in einen lotrecht über dem Axialventilator 18 angeordneten Ausblasekanal 20 fördert. Dieser Ausblasekanal 20 kann durch eine als Jalousieklappe ausgeführte Absperrund Regulierklappe 22 ganz oder teilweise verschlossen werden.A powerful axial fan 18 with a guide wheel is arranged vertically and symmetrically above the block batch 12, that is to say above the false ceiling 16 b, which conveys into a blow-out channel 20 arranged vertically above the axial fan 18. This blow-out channel 20 can be completely or partially closed by a shut-off and regulating flap 22.

Von dem Ausblasekanal 20 zweigen in Strömungsrichtung gesehen hinter dem Axialventilator 18, jedoch vor der Absperr- und Regulierklappe 22 auf jeder Seite mindestens ein Verbindungskanal 24 a, 24 b ab, der jeweils mit einer als Absperr- und Regulierklappe dienenden Jalousieklappe 26 a, 26 b versehen ist. Diese Verbindungskanäle 24 a, 24 b münden jeweils in einen seitlich von der Block-Charge 12 angeordneten Zuströmkanal 28 a, 28 b. Stromauf von den Einmündungen der Zwischenkanäle 24 a, 24 b sind ebenfalls als Absperr- und Regulierklappen dienende Jalousieklappen 30 a, 30 b in die Zuströmkanäle 28 a, 28 b eingebaut. Durch diese Zuströmkanäle 28 a, 28 b, die mit den Kanälen 13 a, 13 b fluchten, kann Umgebungsluft von dem Axialventilator 18 an- und durch die Block-Charge 12 gesaugt werden.From the blow-out duct 20, as seen in the flow direction, branch off behind the axial fan 18, but in front of the shut-off and regulating flap 22 on each side, at least one connecting duct 24 a, 24 b, each with a shutter flap 26 a, 26 b serving as a shut-off and regulating flap is provided. These connecting channels 24 a, 24 b each open into an inflow channel 28 a, 28 b arranged laterally from the block charge 12. Upstream from the mouths of the intermediate channels 24 a, 24 b, shutter flaps 30 a, 30 b serving as shut-off and regulating flaps are also built into the inflow channels 28 a, 28 b. Through these inflow channels 28 a, 28 b, which are aligned with the channels 13 a, 13 b, ambient air can be drawn in by the axial fan 18 and sucked in by the block charge 12.

Zur Block-Charge 12 hin, also nach unten, ist der Axialventilator 18 an ein Hosenrohr 32 mit einem linken Schenkel 32 a, einem rechten Schenkel 32 b und einem Sammelrohr 32 c angeschlossen. In jedem Schenkel 32 a, 32 b befindet sich eine Absperrund Regulierklappe 34 a, 34 b. Die Schenkel 32 a, 22 b sind den Kanälen 13 a, 28 a und 13 b, 28 b zugewandt, während das Sammelrohr 32 c an den Axialventilator 18 angeschlossen ist.To the block charge 12, downwards, the axial fan 18 is connected to a downpipe 32 with a left leg 32 a, a right leg 32 b and a collecting pipe 32 c. In each leg 32 a, 32 b there is a shut-off and regulating flap 34 a, 34 b. The legs 32 a, 22 b face the channels 13 a, 28 a and 13 b, 28 b, while the collecting tube 32 c is connected to the axial fan 18.

Schließlich sind noch Schwenkklappen 36 a, 36 b vorgesehen, die sich etwa auf der Höhe der Zwischendecke 16 b befinden und die Kanäle 13 a, 13 b auf den beiden Seiten der Block-Charge 12 zwischen ihren Seitenwänden und den Seitenwänden 16 a des Gehäuses 16 öffnen bzw. verschließen.Finally, swivel flaps 36 a, 36 b are provided, which are located approximately at the level of the false ceiling 16 b and the channels 13 a, 13 b on the two sides of the block batch 12 between their side walls and the side walls 16 a of the housing 16 open or close.

Diese Schwenkklappen 36 a, 36 b werden durch Teilstücke der isolierten Seitenwände 16 a gebildet.These swing flaps 36 a, 36 b are formed by sections of the insulated side walls 16 a.

Bei dieser Abkühl-Kammer 10 wird also das Kühlmedium Luft von dem Axial­ventilator 18 durch die Zwischenräume in der Block-Charge 12 hindurchge­saugt, wodei die entsprechende Strömungsrichtung durch Einstellung der jeweiligen Jalousieklappen vorgegeben wird. Da sich die Form der Strö­mungsquerschnitte zur Block-Charge 12 hin ständig verjüngt, werden strahlartige Beaufschlagungen und dadurch ungleichmäßige Abkühlungen vermieden.In this cooling chamber 10, the cooling medium air is sucked in by the axial fan 18 through the spaces in the block charge 12, the corresponding flow direction being predetermined by setting the respective louvre flaps. Since the shape of the flow cross sections tapering towards the block charge 12, jet-like impacts and thus uneven cooling are avoided.

Soll z. B., wie in Fig. 1 dargestellt, die Strömung von rechts nach links durch die Block-Charge 12 hindurchtreten, so wird die im rechten Schenkel 32 a des Hosenrohrs 32 befindliche Jalousieklappe 34 a geschlossen und die in dem linken Schenkel 32 a befindliche Jalousieklappe 34 b geöffnet. Gleichzeitig muß die Jalousieklappe 30 a in dem Zuströmkanal 28 a geöffnet und die Jalousieklappe 30 in dem Zuströmkanal 28 b geschlossen werden.Should z. B., as shown in Fig. 1, the flow from right to left through the block batch 12, the blind flap 34 a located in the right leg 32 a of the downpipe 32 is closed and the blind flap located in the left leg 32 a 34 b open. At the same time, the louver flap 30 a in the inflow channel 28 a must be opened and the louver flap 30 in the inflow channel 28 b must be closed.

Selbstsverständlich sind die beiden Klappen 36 a, 36 b geöffnet.Of course, the two flaps 36 a, 36 b are open.

Die von dem Axialventilator 18 angesaugte Luft strömt nun durch den Zuströmkanal 28 a in Richtung der Pfeile auf der rechen Seite der Block-­Charge 12 durch den Kanal 13 a nach unten, durch die Zwischenräume in der Block-Charge 12, auf der linken Seite der Block-Charge 12 durch den Kanal 13 b nach oben und dann durch den linken Schenkel 32 b des Hosenrohrs 32 und das Sammelrohr 32 c zu dem Axialventilator 18, der die Luft in den Ausblasekanal 20 fördert.The air sucked in by the axial fan 18 now flows through the inflow duct 28 a in the direction of the arrows on the right side of the block batch 12 through the duct 13 a downwards, through the spaces in the block batch 12, on the left side of the Block batch 12 through the channel 13 b upwards and then through the left leg 32 b of the downpipe 32 and the collecting tube 32 c to the axial fan 18, which conveys the air into the blow-out channel 20.

Aufgrund der Erwärmung der Luft beim Durchgang durch das flächenhafte Gut ergibt sich eine ungleichmäßige Temperaturverteilung in horizontaler Richtung des flächenhaften Gutes, so daß die Strömungsrichtung in regel­mäßigen Abständen umgekehrt werden muß.Due to the heating of the air when passing through the flat material, there is an uneven temperature distribution in the horizontal direction of the flat material, so that the direction of flow must be reversed at regular intervals.

Zu diesem Zweck werden - mit Ausnahme der Klappen 36 a, 36 b - die bis­her geöffneten Klappen geschlossen und die bisher geschlossenen geöffnet, so daß nun die Luft über den Zuströmkanal 28 b angesaugt wird und von der linken Seite her durch den Kanal 13 b in die Zwischenräume in dem flächenhaftem Gut 12 strömt, auf der rechten Seite aus dem flächenhaften Gut 12 austritt und dann über den Kanal 13 a und den rechten Schenkel 32 a zu dem Axialventilator 18 gelangt, der die erwärmte Luft in den Ausblasekanal 20 fördert.For this purpose - with the exception of flaps 36 a, 36 b - the previously opened flaps are closed and the previously closed flaps are opened, so that the air is now sucked in via the inflow duct 28 b and flows from the left side through the duct 13 b into the spaces in the flat material 12, emerges on the right side from the flat material 12 and then via the duct 13 a and the right leg 32 a reaches the axial fan 18, which conveys the heated air into the blow-out duct 20.

Durch teilweises Öffnen bzw. Schließen der Klappen 34 a, 34 b in den beiden Schenkeln 32 a, 32 b des Hosenrohres kann erreicht werden, daß die Block-­Charge 12 von einem genau definierten Teilstrom des vom Axialventilator 18 angesaugten Luftstromes durchströmt wird. Damit läßt sich die Abkühlwirkung genau dosieren.By partially opening or closing the flaps 34 a, 34 b in the two legs 32 a, 32 b of the downpipe, it can be achieved that the block charge 12 is flowed through by a precisely defined partial flow of the air flow sucked in by the axial fan 18. This allows the cooling effect to be metered precisely.

Außerdem läßt sich durch teilweises Öffnen der Klappen 26 a und 26 b in den Verbindungskanälen 24 a, 24 b der abgesaugte Luftstrom gezielt mit Frisch­luft mischen, um bestimmte Temperatureneffekte zu erreichen. Außerdem läßt sich dadurch die Betriebstemperatur des Ventilators 18 in Grenzen halten.In addition, by partially opening the flaps 26 a and 26 b in the connecting channels 24 a, 24 b, the extracted air flow can be specifically mixed with fresh air in order to achieve certain temperature effects. In addition, the operating temperature of the fan 18 can be kept within limits.

Für besondere Anforderungen, wenn z.B. mit der Abkühl-Kammer 10 Halte­zeiten bei einer bestimmten Temperatur realisiert werden sollen, werden die Klappen 36 a, 36 b in die Kanäle 13 a, 13 b geschwenkt und damit das Ge­häuse 16 verschlosen. Bei entsprechender Isolation verändert sich dann während einer solchen Haltephase die Temperatur der Block-Charge 12 kaum, so daß sich in nahezu allen Fällen der zusätzliche Einbau einer Heizung erübrigt.For special requirements, e.g. when with the cooling chamber 10 holding times to be realized at a certain temperature, the flaps 36 a, 36 b are pivoted into the channels 13 a, 13 b and thus close the housing 16. With appropriate insulation, the temperature of the block charge 12 hardly changes during such a holding phase, so that the additional installation of a heater is unnecessary in almost all cases.

Schließlich kann durch Schließen der Klappen 30 a, 30 b in den Zuström­kanälen 28 a, 28 b und Öffnen der Klappen 26 a, 26 b in den Zwischenkanälen 24 a, 24 b die Abkühlkammer 10 auch im geschlossenen Kreislauf betrieben werden. Dies ist insbesondere dann zweckmäßig, wenn die Block-Charge 12 in den Haltephasen auf einer bestimmten Temperatur gehalten werden muß.Finally, by closing the flaps 30 a, 30 b in the inflow channels 28 a, 28 b and opening the flaps 26 a, 26 b in the intermediate channels 24 a, 24 b, the cooling chamber 10 can also be operated in a closed circuit. This is particularly useful when the block batch 12 must be kept at a certain temperature in the holding phases.

Die Eintrittsquerschnitte der beiden Schenkel 32 a, 32 b des Hosenrohres 32 und die Querschnitte der Zuströmkanäle 28 a, 28 b und der Kanäle 13 a, 13 b haben Rechteckform; die lange Rechteckachse entspricht der Zonenlänge, für die ein Ventilator vorgesehen ist; die Umformung vom Rechteckquer­schnitt auf den kreisrunden Ansaugquerschnitt des Axialventilators 18 er­folgt im Sammelrohr 32 c des Hosenrohrs 32.The inlet cross sections of the two legs 32 a, 32 b of the downpipe 32 and the cross sections of the inflow channels 28 a, 28 b and the channels 13 a, 13 b have a rectangular shape; the long rectangular axis corresponds to the zone length, for which a fan is provided; the conversion from the rectangular cross section to the circular suction cross section of the axial fan 18 takes place in the collecting pipe 32 c of the downpipe 32.

Die Kanäle 13 a, 13 b auf den beiden Seiten der Block-Charge 12 sind mit Strömungsleiteinrichtungen versehen.The channels 13 a, 13 b on the two sides of the block batch 12 are provided with flow control devices.

Weiterhin können im Ausblasekanal 20 Schallschutzeinrichtungen vorgesehen werden.Furthermore, 20 soundproofing devices can be provided in the blow-out duct.

Bei der dargestellten und beschriebenen Ausführungsform ist der Ventilator 18 als Axialventilator ausgebildet; in gleicher Weise kann jedoch auch ein Radialventilator verwendet werden.In the illustrated and described embodiment, the fan 18 is designed as an axial fan; however, a radial fan can also be used in the same way.

Claims (15)

1. Abkühl-Kammer zur Konvektionskühlung von flächenhaftem Gut in Anord­nungen mit durchströmbaren Zwischenräumen, insbesondere von Block-Chargen aus Leichtmetall-Halbzeugen, a) mit mindestens einem, in einen Ausblasekanal fördernden Ventilator, gekennzeichnet durch die folgenden Merkmale: b) auf der Saugseite des Ventilators (18) ist ein Hosenrohr (32) ange­ordnet; c) in jedem Schenkel (32 a, 32 b) des Hosenrohrs (32) ist eine Absperr- und Regulierklappe (34 a, 34 b) vorgesehen; d) symmetrisch zum Gut (12) sind Zuströmkanäle (13 a, 28 a, 13 b, 28 b) angeordnet, die den Schenkeln (32 a, 32 b) zugeordnet sind; e) jeder Zuströmkanal (13 a, 28 a, 13 b, 28 b,) weist eine weitere Absperr­und Regulierklappe (30 a, 30 b) auf; f) die Absperr- und Regulierklappen (34 a, 34 b; 30 a, 30 b) in dem Hosen­rohr (32) und in den Zuströmkanälen (13 a, 28 a, 13 b, 28 b) werden so eingestellt, daß aufgrund der Saugwirkung des Ventilators (18) das Gut (12) im Haupt- oder im Teil-Strom durchströmt sowie die Strömungsrichtung umgekehrt wird. 1. cooling chamber for convection cooling of flat material in arrangements with flowable gaps, in particular block batches of light metal semi-finished products, a) with at least one fan conveying into a blow-out duct, characterized by the following features: b) a downpipe (32) is arranged on the suction side of the fan (18); c) in each leg (32 a, 32 b) of the downpipe (32) a shut-off and regulating flap (34 a, 34 b) is provided; d) symmetrical to the material (12) are inflow channels (13 a, 28 a, 13 b, 28 b) which are assigned to the legs (32 a, 32 b); e) each inflow channel (13 a, 28 a, 13 b, 28 b,) has a further shut-off and regulating flap (30 a, 30 b); f) the shut-off and regulating flaps (34 a, 34 b; 30 a, 30 b) in the downpipe (32) and in the inflow channels (13 a, 28 a, 13 b, 28 b) are set so that due to the Suction effect of the fan (18) flows through the material (12) in the main or partial flow and the flow direction is reversed. 2. Abkühl-Kammer nach Anspruch 1, dadurch gekennzeichnet, daß die Ein­trittsquerschnitte der Schenkel (32 a, 32 b) des Hosenrohrs (32) und die Querschnitte der Zuströmkanäle (28 b, 28b) Rechteckform haben.2. Cooling chamber according to claim 1, characterized in that the inlet cross sections of the legs (32 a, 32 b) of the downpipe (32) and the cross sections of the inflow channels (28 b, 28b) have a rectangular shape. 3. Abkühl-Kammer nach Anspruch 2, dadurch gekennzeichnet, daß die lange Rechteckachse der Rechtecke der Zonenlänge entspricht, für die ein Ventilator (18) vorgesehen ist, und daß die Umformung vom Rechteckquer­schnitt auf den kreisrunden Ansaugquerschnitt des Ventilators (18) im Sammelrohr (32 c) des Hosenrohres (32) erfolgt.3. Cooling chamber according to claim 2, characterized in that the long rectangular axis of the rectangles corresponds to the zone length for which a fan (18) is provided, and that the transformation from the rectangular cross section to the circular suction cross section of the fan (18) in the collecting pipe ( 32 c) of the downpipe (32). 4. Abkühl-Kammer nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in dem Ausblasekanal eine Absperr- und Regulierklappe (22) angeordnet ist.4. Cooling chamber according to one of claims 1 to 3, characterized in that a shut-off and regulating flap (22) is arranged in the blow-out channel. 5. Abkühl-Kammer nach Anspruch 4, dadurch gekennzeichnet, daß in Strömungsrichtung gesehen vor der Absperr- und Regulierklappe (22) in dem Ausblasekanal (20) je ein Verbindungskanal (24 a, 24 b) vorgesehen ist, der den Ausblasekanal (20) mit den auf beiden Seiten des Gutes (12) angeordne­ten Zuströmkanälen (13 a, 28 a, 13 b, 28 b) verbindet.5. Cooling chamber according to claim 4, characterized in that seen in the direction of flow in front of the shut-off and regulating flap (22) in the blow-out channel (20), a connecting channel (24 a, 24 b) is provided, which the blow-out channel (20) with the inflow channels (13 a, 28 a, 13 b, 28 b) arranged on both sides of the material (12). 6. Abkühl-Kammer nach Anspruch 5, dadurch gekennzeichnet, daß jeder Ver­bindungskanal (24 a, 25 b) mit einer Absperr- und Regulierklappe (26 a, 26 b) versehen ist.6. Cooling chamber according to claim 5, characterized in that each connecting channel (24 a, 25 b) is provided with a shut-off and regulating flap (26 a, 26 b). 7. Abkühl-Kammer nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, daß jeder Verbindungskanal (24 a, 24 b) zwischen den Regulierklappen (30 a, 30 b) und der Verbindung zu dem Hosenrohr (32) in den Zuströmkanal (13 a, 28 a, 13 b, 28 b) mündet.7. cooling chamber according to one of claims 5 or 6, characterized in that each connecting channel (24 a, 24 b) between the regulating flaps (30 a, 30 b) and the connection to the downpipe (32) in the inflow channel (13 a, 28 a, 13 b, 28 b) opens. 8. Abkühl-Kammer nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Absperr- und Regulierklappen zumindest teilweise als Jalousieklap­pen ausgeführt sind.8. Cooling chamber according to one of claims 1 to 7, characterized in that the shut-off and regulating flaps are at least partially designed as multi-leaf flaps. 9. Abkühl-Kammer nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Zuströmkanäle (13 a, 28 a, 13 b, 28 b) auf den beiden Seiten des Gutes (12) Strömungsleiteinrichtungen aufweisen.9. Cooling chamber according to one of claims 1 to 8, characterized in that the inflow channels (13 a, 28 a, 13 b, 28 b) on both sides of the material (12) have flow control devices. 10. Abkühl-Kammer nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß als Ventilator (18) ein Axialventilator verwendet wird.10. Cooling chamber according to one of claims 1 to 9, characterized in that an axial fan is used as the fan (18). 11. Abkühl-Kammer nach einem der Ansprüche 1 bis 9, daurch gekennzeichnet, daß als Ventilator (18) ein Radialventilator verwendet wird.11. Cooling chamber according to one of claims 1 to 9, characterized in that a radial fan is used as the fan (18). 12. Abkühl-Kammer nach einem der Ansprüche 1 bis 11, dadurch gekennzeich­net, daß ein das Gut (12) umgebendes Gehäuse (16) mit einer Wärme- und Schallisolierung versehen ist.12. Cooling chamber according to one of claims 1 to 11, characterized in that a housing (16) surrounding the material (12) is provided with heat and sound insulation. 13. Abkühl-Kammer nach einem der Ansprüche 1 bis 12, dadurch gekennzeich­net, daß ein das Gut (12) umgebendes Gehäuse (16) durch schwenkbare Klappen (36 a, 36 b) absperrbar ist.13. Cooling chamber according to one of claims 1 to 12, characterized in that a material (12) surrounding the housing (16) by pivotable flaps (36 a, 36 b) can be shut off. 14. Abkühl-Kammer nach Anspruch 13, dadurch gekennzeichnet, daß die Klappen (36 a, 36b) durch Teilstücke der isolierten Seitenwände (16 a) des Gehäuses (16) gebildet werden und sich auf der Höhe einer Zwischendecke (16 b) des Gehäuses (16) befinden.14. Cooling chamber according to claim 13, characterized in that the flaps (36 a, 36b) are formed by sections of the insulated side walls (16 a) of the housing (16) and at the level of a false ceiling (16 b) of the housing (16). 15. Abkühl-Kammer nach einem der Ansprüche 1 bis 14, dadurch gekennzeich­net, daß im Ausblaserohr (20) Schallschutzeinrichtungen vorgesehen sind.15. Cooling chamber according to one of claims 1 to 14, characterized in that noise protection devices are provided in the exhaust pipe (20).
EP88810733A 1987-11-03 1988-10-26 Convection cooling vessel for materials exhibiting surfaces Expired - Lifetime EP0315590B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810733T ATE100929T1 (en) 1987-11-03 1988-10-26 COOLING CHAMBER FOR CONVECTION COOLING OF FLAT GOODS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3737254 1987-11-03
DE19873737254 DE3737254A1 (en) 1987-11-03 1987-11-03 COOLING CHAMBER FOR CONVECTION COOLING OF SURFACE GOODS

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EP0315590A2 true EP0315590A2 (en) 1989-05-10
EP0315590A3 EP0315590A3 (en) 1991-05-22
EP0315590B1 EP0315590B1 (en) 1994-01-26

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EP (1) EP0315590B1 (en)
AT (1) ATE100929T1 (en)
CA (1) CA1329489C (en)
DE (2) DE3737254A1 (en)
NO (1) NO172364C (en)

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Also Published As

Publication number Publication date
NO172364C (en) 1993-07-14
DE3737254A1 (en) 1989-05-18
NO884857L (en) 1989-05-05
EP0315590A3 (en) 1991-05-22
EP0315590B1 (en) 1994-01-26
NO884857D0 (en) 1988-11-01
NO172364B (en) 1993-03-29
CA1329489C (en) 1994-05-17
DE3887452D1 (en) 1994-03-10
ATE100929T1 (en) 1994-02-15

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