EP1488014B1 - Verfahren und vorrichtung zur konvektiven wärmeübertragung zwischen einem wärmeübertragungsmittel und der stirnfläche eines gewickelten metallbandes in form eines coils - Google Patents
Verfahren und vorrichtung zur konvektiven wärmeübertragung zwischen einem wärmeübertragungsmittel und der stirnfläche eines gewickelten metallbandes in form eines coils Download PDFInfo
- Publication number
- EP1488014B1 EP1488014B1 EP03717151A EP03717151A EP1488014B1 EP 1488014 B1 EP1488014 B1 EP 1488014B1 EP 03717151 A EP03717151 A EP 03717151A EP 03717151 A EP03717151 A EP 03717151A EP 1488014 B1 EP1488014 B1 EP 1488014B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat transfer
- coil
- transfer medium
- face
- wound metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/663—Bell-type furnaces
- C21D9/673—Details, accessories, or equipment peculiar to bell-type furnaces
-
- 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
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
Definitions
- the invention relates to a method for convective Heat transfer between a heat transfer medium and an end face of a wound metal band in shape a coil in which the end face with the Heat transfer means by means of at least one nozzle wall is charged.
- the invention further relates to a device for Implementation of the method for convective heat transfer between a heat transfer medium and an end face a wound metal band in the form of a coil.
- the Japanese publication JP 05 177240 A describes also a method and a device for cooling from coils of metal bands by means of a water mist.
- the Device sees a nozzle on each side of the coil Creating a Nebcls ago. Again, the desired The aim of the lowest possible wetting and rusting achieved by a specific adjustment of the water mist.
- the object of the invention is therefore to provide a method for convective heat transfer between one Heat transfer means and a front side of a Metal bands in the form of a wound cylindrical coil, to provide with itself for metal bands different widths the highest possible heat transfer can achieve.
- the object of the invention is also a device for Implementation of the method for convective heat transfer provide.
- this object is achieved in a heat transfer method of the type mentioned in which a Front side of a metal band in the form of a wound coil by means of at least one nozzle wall with a Heat transfer medium is applied, thereby solved that the distance between at least one nozzle wall and the end face of the Metal band is set.
- the object is further achieved in that in one generic device for convective heat transfer between a heat transfer medium and an end face a metal band in the form of a wound coil means for Impingement of the end faces of the coil with the Heat transfer means by means of at least one nozzle wall are provided, wherein the distance between at least one Adjustable nozzle wall and the front side of the metal strip is.
- the Invention is a gas as a heat transfer medium promoted a pressure box in the nozzle walls and flows through the nozzles on the faces of the heated or to cooling coils.
- the nozzle walls are to Moveable along an axis that is the main axis of the coils corresponds or substantially parallel to this runs.
- the term "substantially” includes angles in the Order of magnitude of 0 to 10 °. For example Coil cylinders are treated with smaller bandwidths, let the nozzle walls along this axis in the direction move the end faces of the coil. So can the distance between nozzle wall and coil surface to an optimal Distance will be set, and it will always be one achieved effective flow.
- FIG. 1 is a section through a particularly preferred embodiment of a device for convective heat transfer between a Heat transfer means and an end face of a wound metal strip in the form of a cylindrical coil, shown.
- a heat transfer medium a fluid or a gas is used.
- a gas is used to transfer heat.
- the device comprises a pressure box 20 into which the heating or cooling coil 30 is introduced.
- the coil is a cylindrically wound Metal band.
- the illustrated metal band is about an axis 70 wrapped, which runs horizontally in the figure, so that Plan on the front sides 31 and 32 of the coil Surfaces arise. Essentially parallel to these End faces of the coil are each a nozzle wall 10 and 11.
- the gas for heating or cooling of the coils are introduced into the pressure box 20.
- the gas may be different types of gas suitable for the particular application.
- N 2 , N 2 H 2 , air, water vapor, inert gas, hydrogen, exogas, or endogas can be used.
- the flow of the gas within the pressure box is indicated graphically by arrows.
- the gas flows through the nozzle walls 10 and 11 on each one end side of the coil.
- the nozzle walls have for this purpose a plurality of openings, which may be formed differently.
- hole, slot, tube or swirl nozzles can be used.
- the gas flows out of the nozzle openings and bounces on the front sides of the coil, where the heat transfer takes place. This applies both to the heating and to the cooling of the coil material.
- the drive 40 for this movement is not shown in detail in FIG. 1, but characterized by horizontal movement arrows.
- Fig. 1 In the illustration in Fig. 1 are on the right side of the Coils two positions of the nozzle wall 11 with two various distances 60 shown. The position with the greater distance is through a dashed border shown. It is sufficient if only one of the Moving nozzle walls along the major axis of the coil, However, both nozzle walls can be made movable be. If only one nozzle wall is movable, one must additional positioning of the coil in the middle between done the nozzle walls. Are on the other hand both nozzle walls movable, the walls can be at the optimum distance to the End faces of the coil are brought.
- the distance 60 optimized so far be that without power losses a very good Heat transfer sets.
- the facilities are conventional designed for maximum coil size and insertion smaller coils leads to a flow, its effect below the maximum achievable.
- the sealing gap may be low or the seal designed as a labyrinth or contact seal become.
- FIG. 2 is a particularly preferred Embodiment of a chamber furnace with integrated erfindunmultier device for heat transfer shown.
- the pressure box 20 is located within the Furnace and to be heated or cooled coil 30 is positioned between the two nozzle walls 10 and 11.
- the Charging the furnace with a coil takes place in this Embodiment from below, which is graphically below the chamber of the furnace represented by dashed lines is.
- the control of the chamber furnace is preferably via Control means with a program that expediently at least the temperature and the speed of the Heat transfer medium and the distance between Nozzle walls and coil controls and regulates that as optimal as possible heat transfer sets.
- the inventive embodiment of a device with Nozzle walls whose distance to the end faces of the is adjustable to heating or cooling coils has different advantages.
- the decor can be so on the respective coil dimensions are adjusted that always an effective flow is guaranteed. from that results in a better heat transfer than in conventional Facilities, reducing the residence time of the workpieces in the ovens can be lowered. This in turn allows Energy savings and a reduction in throughput times.
- the installation of a separating nozzle box improves the Utilization of the plant additionally.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Replacement Of Web Rolls (AREA)
Description
derartiger Coils erfolgt typischerweise in Kammeröfen, in denen zur Verringerung der Glüh- und Verweilzeit der werkstücke ein möglichst hoher Wärmeübergang angestrebt wird.
- Fig. 1
- einen Schnitt durch ein besonders bevorzugtes Ausführungsbeispiel einer Vorrichtung zur konvektiven Wärmeübertragung von einem Wärmeübertragungsmittel auf gewickelte Metallbänder; und
- Fig. 2
- ein Ausführungsbeispiel eines Kammerofens mit integrierter erfindungsgemäßer Vorrichtung.
- 10, 11
- Düsenwände
- 20
- Druckkasten
- 30
- Coil
- 31, 32
- Stirnflächen des Coils
- 40
- Antrieb
- 60
- Abstand zwischen Düsenwand und Stirnfläche des Coils
- 70
- Hauptachse des Coils
- 71
- Rotationsachse der Düsenwände
Claims (11)
- Verfahren zur konvektiven Wärmeübertragung zwischen einem Wärmeübertragungsmittel und einer Stirnfläche eines gewickelten Metallbandes in Form eines Coils, bei dem die Stirnfläche mit dem Wärmeübertragungsmittel mittels wenigstens einer Düsenwand beaufschlagt wird, dadurch gekennzeichnet, dass der Abstand (60) zwischen wenigstens einer Düsenwand (10; 11) und der Stirnfläche des gewickelten Metallbandes eingestellt wird.
- Vorrichtung zur konvektiven Wärmeübertragung zwischen einem Wärmeübertragungsmittel und einer Stirnfläche eines gewickelten Metallbandes in Form eines Coils, wobei die Vorrichtung Mittel zur Beaufschlagung der Stirnfläche mit dem Wärmeübertragungsmittel mittels wenigstens einer Düsenwand vorsieht, dadurch gekennzeichnet, dass der Abstand (60) zwischen wenigstens einer Düsenwand (10; 11) und der Stirnfläche des gewickelten Metallbandes einstellbar ist.
- Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass wenigstens eine der Düsenwande (10; 11) entlang einer Achse (71) bewegbar sind, wobei diese Achse der Hauptachse (70) des Coils (30) entspricht oder im Wesentlichen parallel zu dieser verläuft.
- Vorrichtung nach einem oder beiden der Ansprüche 2 und 3, dadurch gekennzeichnet, dass das Wärmeübertragungsmittel ein Fluid oder ein Gas ist.
- Vorrichtung nach einem oder mehreren der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Vorrichtung wenigstens einen Druckkasten (20) umfasst, in dem wenigstens ein Coil (30) und zwei Düsenwände (10; 11) angeordnet sind, wobei die Düsenwände auf den Stirnseiten (31; 32) des Coils (30) angeordnet sind.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass ein Wärmeübertragungsmittel durch den Druckkasten (20) und die Düsenwände (10; 11) auf die Stirnseiten (31; 32) des Coils (30) führbar ist.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass ein Ventilator ein Gas in und/oder durch den Druckkasten (20) bläst.
- Vorrichtung nach einem oder mehreren der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass die Dichtung zwischen Düsenwänden (10; 11) und dem Druckkasten (20) als Labyrinth- oder Kontaktdichtung ausgeführt ist.
- Vorrichtung nach einem oder mehreren der Ansprüche 2 bis8, dadurch gekennzeichnet, dass die Vorrichtung Steuermittel aufweist, die wenigstens die Temperatur und die Geschwindigkeit des Wärmeübertragungsmittels und den Abstand (60) zwischen Düsenwänden und Coil (30) steuern.
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Steuermittel ein Steuerungs- und Regelungsprogramm beinhalten, das wenigstens die Temperatur und die Geschwindigkeit des Wärmeübertragungsmittels und den Abstand (60) zwischen Düsenwänden und dem Coil (30) steuert.
- Ofenanlage, dadurch gekennzeichnet, dass sie wenigstens eine Vorrichtung zur konvektiven Wärmeübertragung von einem Wärmeübertragungsmittel auf eine Oberfläche aufweist, wobei die Vorrichtung durch einen oder mehrere der Ansprüche 2 bis 10 beschrieben ist.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10211749 | 2002-03-15 | ||
DE10211749 | 2002-03-15 | ||
DE10227498A DE10227498B4 (de) | 2002-03-15 | 2002-06-19 | Verfahren und Vorrichtung zur konvektiven Wärmeübertragung zwischen einem Wärmeübertragungsmittel und der Stirnfläche eines gewickelten Metallbandes in Form eines Coils |
DE10227498 | 2002-06-19 | ||
PCT/DE2003/000865 WO2003078666A2 (de) | 2002-03-15 | 2003-03-17 | Verfahren und vorrichtung zur konvektiven wärmeübertragung zwischen einem wärmeübertragungsmittel und der stirnfläche eines gewickelten metallbandes in form eines coils |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1488014A2 EP1488014A2 (de) | 2004-12-22 |
EP1488014B1 true EP1488014B1 (de) | 2005-07-27 |
Family
ID=28042844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03717151A Expired - Lifetime EP1488014B1 (de) | 2002-03-15 | 2003-03-17 | Verfahren und vorrichtung zur konvektiven wärmeübertragung zwischen einem wärmeübertragungsmittel und der stirnfläche eines gewickelten metallbandes in form eines coils |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1488014B1 (de) |
AT (1) | ATE300621T1 (de) |
AU (1) | AU2003221602A1 (de) |
WO (1) | WO2003078666A2 (de) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05177240A (ja) * | 1992-01-07 | 1993-07-20 | Nippon Steel Corp | 熱延コイルの冷却方法 |
JP3370562B2 (ja) * | 1997-03-31 | 2003-01-27 | 川崎製鉄株式会社 | 熱延コイルの冷却方法およびその装置 |
-
2003
- 2003-03-17 EP EP03717151A patent/EP1488014B1/de not_active Expired - Lifetime
- 2003-03-17 AU AU2003221602A patent/AU2003221602A1/en not_active Abandoned
- 2003-03-17 AT AT03717151T patent/ATE300621T1/de active
- 2003-03-17 WO PCT/DE2003/000865 patent/WO2003078666A2/de not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU2003221602A8 (en) | 2003-09-29 |
WO2003078666A3 (de) | 2003-12-18 |
EP1488014A2 (de) | 2004-12-22 |
WO2003078666A2 (de) | 2003-09-25 |
AU2003221602A1 (en) | 2003-09-29 |
ATE300621T1 (de) | 2005-08-15 |
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