EP2809460B1 - Dispositif pour diriger un écoulement pour le refroidissement d'un cylindre ou d'une bande de métal - Google Patents

Dispositif pour diriger un écoulement pour le refroidissement d'un cylindre ou d'une bande de métal Download PDF

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Publication number
EP2809460B1
EP2809460B1 EP13702979.9A EP13702979A EP2809460B1 EP 2809460 B1 EP2809460 B1 EP 2809460B1 EP 13702979 A EP13702979 A EP 13702979A EP 2809460 B1 EP2809460 B1 EP 2809460B1
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EP
European Patent Office
Prior art keywords
hollow body
cooling medium
metal strip
cooling
roll
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.)
Active
Application number
EP13702979.9A
Other languages
German (de)
English (en)
Other versions
EP2809460A1 (fr
Inventor
Matthias Kipping
Johannes Alken
Ralf Seidel
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.)
SMS Group GmbH
Original Assignee
SMS Group GmbH
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Filing date
Publication date
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Publication of EP2809460A1 publication Critical patent/EP2809460A1/fr
Application granted granted Critical
Publication of EP2809460B1 publication Critical patent/EP2809460B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B21B2027/103—Lubricating, cooling or heating rolls externally cooling externally

Definitions

  • the present invention relates to a device for directing a flow for cooling a roll or a metal strip or a flow straightener. Furthermore, the present invention relates to a device for cooling a roller or a metal strip.
  • cooling medium viademediumauslässe is simply applied in large quantities on the roll to be cooled or the belt to be cooled.
  • the disadvantage of this is, inter alia, a large amount of used cooling medium, which is either lost for further processes or consuming recycled and possibly processed.
  • Another disadvantage is the poor heat transfer rate per unit volume of applied cooling medium.
  • a controlled and different degrees of cooling in the width direction of the roller or the belt is not possible with many known devices.
  • spray bars which extend across the width of the belt or roller.
  • Such spray bars often comprise a hollow body which can be filled with cooling water and which comprises outlet openings along the width direction, from which cooling water can reach the strip.
  • the JP 11057837 A discloses, for example, a cooling device in which water can be passed from a container to the metal strip via a slot extending in the width direction of a metal strip.
  • a disadvantage of such constructions is that the water still flows undirected on the metal strip. The relative velocity between the water to be cooled and the metal strip is low and the water used is not sufficiently used for cooling.
  • the exiting from such a cooling device streams are highly turbulent, undirected and / or have at their exit a considerable boundary layer thickness. Turbulent coolant flows with large boundary layer thickness generally result in a relatively poor heat transfer coefficient and thus reduce cooling efficiency.
  • Another disadvantage is that the currents generated are not sufficiently defined or known or calculable, whereby the control or regulation of the cooling is difficult.
  • the technical problem is to provide a device that contributes to a more efficient cooling of a roll or metal strip.
  • a device for directing a flow which can produce a low turbulence, a low boundary layer, or a directional flow.
  • Another object is to provide an improved apparatus for cooling a roll or strip of metal.
  • at least one of the above-mentioned disadvantages should be avoided.
  • the Belgian patent application BE 870 960 A1 discloses a device for directing ademedlumstroms for cooling a metal strip. This device comprises a hollow body extending over the width of the metal strip and a tube arranged in the hollow body and extending in the width direction of the metal strip.
  • This device for directing a cooling medium flow for cooling a roll or a metal strip according to claim 1.
  • This device preferably comprises a hollow body extending over at least part of the width of the roller or the metal strip and a tube arranged in the hollow body and extending in the width direction (perpendicular to the direction of rolling or rolling) of the roller or metal strip, the hollow body being in the width direction the roller or the metal strip is divided into a plurality of chambers (segments) and the tube openings for introducing cooling medium into the chambers of the hollow body and the chambers each comprise an opening for the outflow of cooling medium from the hollow body.
  • the chambers according to the invention each comprise a channel formed between the inner wall of the hollow body and the pipe for conducting cooling medium from the openings of the pipe to the opening for the outflow of cooling medium from the hollow body, wherein the flow cross-section of the channel tapers at least at its downstream end or extended to its downstream end.
  • the fluid is accelerated and directed.
  • turbulence can be reduced and the boundary layer can be reduced.
  • the term of the boundary layer is familiar to those skilled in the field of fluid dynamics.
  • the thickness of the boundary layer of fluid flow is considered to be the thickness in which the flowing fluid has less than 99% of its free outer velocity.
  • the openings of the tube are preferably in all embodiments on the side facing away from the opening of the hollow body side, so that the cooling medium leaves the tube in a flow direction, which is directed opposite to the flow direction at exit from the hollow body substantially. After its exit from the tube, the cooling medium is therefore deflected by appropriate guidance along the outside of the tube.
  • the tube is arranged in the interior of the hollow body and at least for the most part (more than half of its Circumference) of cooling medium flow around.
  • the tube can be arranged substantially centered with respect to the hollow body or its inner wall.
  • the channel formed tapers downstream at least from half its length continuously up to the opening for outflow from the hollow body.
  • the chambers are each separated from each other by a partition wall.
  • the partition separates the cavity of the hollow body in the width direction, but the flow of cooling medium through the tube is still possible.
  • the partitions extend in a direction substantially perpendicular to the width direction of the roll or the metal strip.
  • At least some of the chambers of the hollow body comprise a flow dividing wall extending essentially opposite the opening for the outflow of cooling medium from the hollow body, and at least two openings arranged in the pipe for passing coolant into the respective chamber.
  • the openings for conducting coolant into the respective chamber are each arranged on one of the sides of the flow dividing wall for dividing cooling medium emerging from the openings of the pipe into two partial flows, so that when cooling medium leaks out of the openings of the pipe, the two partial flows each ( between tube and inner wall of the hollow body or the respective chamber delimited) are separated from each other on opposite sides of the tube in the direction of the opening for the outflow of cooling medium from the hollow body to be passed and unite there to the cooling medium flow or a common cooling medium flow.
  • a partial flow within a chamber from one of the two openings of the tube in a region opposite the outlet of the hollow body between the inner wall of the hollow body and the outer wall of the tube is preferably directed into a tapered channel to the outlet of the hollow body.
  • the channel tapers at least in sections.
  • the two partial flows are preferably separated from each other in a region of the hollow body opposite the outlet of the hollow body by a flow dividing wall.
  • a shape of the hollow body or of the tube can in particular be made easily and is also extremely effective for producing a directed and accelerated flow.
  • the distance between an inner wall extending in the direction of the outlet of the hollow body and an outer wall of the pipe lying opposite this inner wall preferably decreases in the flow direction of the cooling medium or downstream. Furthermore, such a form simplifies the predictability of a cooling flow through the device. In general, flows through the cooler can be calculated or approximated using numerical simulations.
  • the hollow body and optionally also the tube perpendicular to the width direction of the roller or the metal strip on a teardrop-shaped cross-section a teardrop-shaped cross-section.
  • the hollow body at the tip of the drop-shaped cross section on the outlet of the hollow body serves to generate even less turbulent flows. In particular, accounts in such a form all corners and edges.
  • the inner wall of the cavity is edge-free.
  • the inner wall of the cavity is free of protruding edges or free of protruding kinks.
  • the present invention comprises a device for cooling a roll or a metal strip with a cooling shell which can be set against a roll or a metal strip and at least one nozzle for introducing a flow of cooling medium into a gap between the cooling shell and the roll or the metal strip, wherein the nozzle has an inlet region and an outlet region for the cooling medium flow and the device for cooling a roll or a metal strip further comprises a device for directing a cooling medium flow according to one of the above embodiments, wherein the openings for discharging cooling medium from the hollow body open into the inlet of the nozzle.
  • a directed flow can be used particularly advantageously and efficiently for cooling.
  • the outlet region of the nozzle opens into the gap between the cooling shell and the roll or metal strip.
  • the outlet region of the nozzle is connected to the cooling shell and at least partially enclosed by the cooling shell so that cooling medium can flow from the nozzle into the cooling shell.
  • the nozzle is arranged to introduce a cooling medium flow substantially tangentially to the metal strip or roll surface in the gap.
  • outlets of the hollow body open into the inlet region of the nozzle and are optionally connected to the nozzle.
  • the cooling shell extends over at least part of the width and / or circumference of the roll. If a metal strip is to be cooled, the cooling shell preferably extends over at least part of the width and / or the length of the metal strip.
  • the outlet of the nozzle can be arranged such that the metal strip surface or the roll surface against the direction of movement of the roller or the belt can be flowed through the nozzle.
  • FIG. 1 discloses a part of a device according to the invention for cooling a roll 2.
  • the roll may be a work roll 2 for rolling a metal strip 200 as shown.
  • Such a roll 2 may also be supported by a backing roll 300 and cooled by cooling medium (such as gas, air, water, oil or mixtures of these materials) for cooling the roll surface.
  • a cooling shell 40 can preferably be attached to a part of the circumference U of the roll 2.
  • a nozzle 41 a cooling medium flow into the gap 43 between the roller surface and the cooling shell 40, as through the Marked flow lines, initiated.
  • the cooling shell 40 extends at least over part of the roll width in the width direction B.
  • the width direction B is perpendicular to the rolling or casting or strip running direction W.
  • the distance of the cooling shell 40 of the roll surface (the gap height) can be variable or be adjustable.
  • a suitable adjusting device (not shown) can serve, which can adjust the gap distance hydraulically, pneumatically mechanically or electromechanically, for example.
  • the flow is as laminar as possible or less turbulent.
  • the reduction of turbulence and / or the reduction of the boundary layer thickness results in that the heat transfer between the roller and the cooling medium flow in the gap 43 is improved.
  • the flow rate has a significant influence on the heat transfer coefficient and thus on the cooling effect.
  • the flow is preferably introduced counter to the direction of rotation D of the roller 2 in the gap 43.
  • the nozzle 42 may include a downstream tapered shape for conducting the cooling medium, which includes an inlet region 45 and an outlet region 46.
  • the nozzle 41 preferably leads the cooling medium into the gap 43 in a curved line or shape tangentially to the roll surface.
  • the nozzle 41 can form part of the cooling shell 43 or be connected to it.
  • the nozzle 43 may extend over at least part of the width of the roller 2 and / or the cooling shell 40 extend.
  • the nozzle 40 may be formed slit-like or formed by a plurality of separate, arranged in the width direction of B nozzles.
  • a scraper 400 which has a substantially plate-like shape, can also be arranged at the downstream end of the cooling shell 40.
  • a scraper may for example be made of wood, hard tissue or metal.
  • the nozzle inlet 45 must be supplied with cooling medium. This can be done, for example, with a variant according to the invention of a onflow device or a flow straightener 1, as described in US Pat FIG. 2 is shown.
  • the in the FIG. 2 Device 1 for directing a cooling medium flow shown can preferably have one or more openings 8, from which cooling medium can be fed to the inlet region 45 of the nozzle 41.
  • the opening 9 can have the same cross-section A 'as the nozzle inlet 45 (cross-section A) to reduce turbulence.
  • the device 1 preferably comprises a hollow body 3, which can extend in the width direction B.
  • a (distributor) tube 5 is preferably arranged, which also extends in the width direction B, whose outer diameter is preferably smaller than the inner diameter of the hollow body 3.
  • the tube 5 can be filled via at least one inlet 6.
  • Inlets or feed pipes 6 can generally be introduced into the pipe 5 in any desired manner, for example radially or axially to the pipe 5. Furthermore, several feeds 6 can be distributed along the pipe 5 (in the width direction B).
  • the tube 5 comprises openings (for example bores) which enter the hollow body 3 open. Preferably, these openings are arranged on one side of the tube 5, which is opposite to the opening 8 of the hollow body 3 substantially.
  • the exact shape or the exact cross section of the hollow body 3 or the tube 5 is irrelevant to the invention.
  • a channel formed between the inner wall of the hollow body and the tube 5 should taper in the direction of the opening 9 of the hollow body 3.
  • the hollow body 9 should enclose a channel which tapers towards a downstream end at least in sections or tapers at a downstream end.
  • the inner wall of the hollow body is edge-free or free of protruding corners or edges.
  • the device 1 preferably comprises a partition wall 15, which extends substantially fluid-tightly between the opposite side of the opening 8 of the tube 5 and the inner wall of the hollow body 3.
  • at least two outflow openings 9 are preferably arranged in the tube 5 such that in each case one of the outflow openings 9 directs cooling medium out of the tube 5 onto one of the two sides of the dividing wall 15.
  • the various outflow openings 9 of the tube 5 may preferably have different flow cross-sections in the width direction B.
  • the number of openings 9 varies in the width direction B.
  • the hollow body 3 in one of its opening 8 facing half, in the direction of the opening 8 converging inner walls.
  • From the openings 9 exiting cooling medium is thus preferably divided into two partial streams and passed between the tube 5 and the inner wall of the hollow body 3 in the direction of the opening 8 of the hollow body.
  • the device 1 is divided in the width direction B into a plurality of chambers 7 or coolant-carrying chambers 7, wherein the FIG. 2 a perpendicular to the width direction B cross-section through one of the chambers 7 shows.
  • the Indian FIG. 7 illustrated cross section in the width direction B shows the adjacent in the width direction chambers 7, which are preferably separated by partitions 14 from each other.
  • the partitions 14 extend perpendicular to the width direction B.
  • the partitions are preferably interrupted only by the pipe 5 or the leads 6. Further elements of the device 1 are in the FIG. 3 with the same reference numerals as in the FIG. 2 shown.
  • An opening 8 and two openings 9 for introducing cooling medium into the chamber 7 are preferably arranged in at least one of the chambers 7.
  • the openings 9 are preferably arranged on two sides of a flow dividing wall 15. Additional openings or outlets 8, 9 are possible.
  • the preferably fluid-tight segmentation or chamber-like subdivision of the hollow body 3 in the width direction B ensures that the currents generated by the device 1 are aligned perpendicular to the width direction.
  • the chamber width can vary depending on the cooling medium used. It may for example be between 0.5 and 15 cm and preferably between 2 and 10 cm.
  • such a segmentation can serve to provide different amounts of cooling medium or different streams in the width direction B.
  • the device 1 additionally comprises a movable or pivotable diaphragm or shell 13 for varying the clear diameter (the flow cross section) of the openings 9 of the tube 5.
  • a separately controlled diaphragm 13 is provided for each of the chambers 7.
  • the illustrated aperture 13 essentially comprises a shape which is at least partially complementary to the inner shape of the tube 5. Wherein the aperture 13 can close the openings 9 pivoting. However, other shapes of the aperture 13 are possible, such as plug-like panels that close the opening 9 in a substantially perpendicular to the opening 9 movement and release it again. Otherwise, controllable valves can also be provided at the openings 9.
  • the diaphragms 13 are preferably arranged inside the tube 5, but may also be arranged outside the tube 5.
  • a width-varying volume flow of cooling medium can be generated.
  • the diaphragms are designed adjustable such that the strip or roller center is more coolable by applying larger amounts of coolant than the edge regions. In principle, however, viewed in the direction of width, edge-emphasized cooling is also possible or a constant application of cooling medium over the strip or roll width.
  • An adjustment of the aperture 13 or valves can be done, for example, mechanically hydraulic, electric, pneumatic and optionally wirelessly controlled.
  • the FIG. 5 discloses an inventive embodiment of an apparatus for cooling a metal strip 20.
  • the metal strip 20 moves in the rolling direction W, which is perpendicular to the width direction B of the metal strip 20.
  • a cooling shell 60 On at least one of the broad sides of the belt 20 is a cooling shell 60.
  • Such cooling shells 60 are arranged on both sides of the belt 20. It is possible that the distance of the cooling shells 60 from the surface of the metal strip 20 is adjustable. These devices can serve, as they are already analogous in terms of FIG. 1 have been described.
  • the cooling medium is preferably introduced into the gap 63 via a nozzle 61.
  • Such a nozzle 61 may include an inlet 65 and an outlet region 66.
  • cooling medium is preferably introduced counter to the direction of the surface to be cooled.
  • the cooling medium flow from the nozzle 61 is preferably guided tangentially to the metal strip surface in the gap 63.
  • the device shown further comprises a device 10 according to the invention for directing a cooling medium flow.
  • This device 10 may, for example, one of the in the FIGS. 2 to 4 and 6 and 7 shown devices.
  • FIG. 6 shows a further inventive embodiment of a flow straightener 11.
  • the hollow body 30 and the inner wall is formed substantially with a triangular cross-section.
  • a tube 50 is arranged, which performs an analogous function to the tube 5 FIG. 2 exercises.
  • the tube 50 has a triangular cross-section.
  • a channel 22 is formed, which tapers in the direction of the outlet 80 from the hollow body or the chamber 7 shown.
  • a flow dividing wall 15 can be arranged between the two openings 90.
  • Coolant exiting from the openings 90 can thus be divided into two partial flows, which are conducted on opposite sides of the tube 50 between the tube 50 and the inner wall of the hollow body 30 in the direction of the outlet 80 from the hollow body 30 or the segment 7 of the hollow body 30 ,
  • the channel may include two (separate) channels on both sides of the tube.
  • the flow cross-section may preferably taper or reduce in size in both channels downstream or in the direction of the outlet from the hollow body.
  • FIG. 7 shows a further inventive embodiment of a flow straightener 111.
  • the structure is basically similar to that in the FIG. 6 shown construction.
  • the hollow body 33 and the tube 55 have a teardrop-shaped cross-section.
  • Such a cross-section may also be described by a shape having at one end a round substantially semicircular or semi-elliptical shape and subsequently closing in an acute converging shape.
  • the channel 222 formed between the tube 55 and the inner wall of the cavity 33 opens into an outlet 88, which preferably has the cross section A 'and is arranged substantially at the tip of the drop shape.
  • openings 99 are in the Pipe 55 is provided, which are provided substantially on a side opposite to the outlet 88 of the tube 55.
  • a flow dividing wall 15 is preferably formed between at least two such openings 99.
  • two partial flows can be generated, which each extend from one of the openings 99 of the tube 55 to the outlet 88 of the hollow body 33 and the respective chamber 7.
  • the flow cross-section of the channel 222 or of the channels is reduced at least from half of the channel length (considered in the flow direction).
  • the shape of a nozzle 41, 61 and / or a device 1, 10, 11, 111 can be optimized by means of numerical simulations.
  • the skilled person can regulate the pressure of the cooling medium or the volume flow provided.
  • a numerical simulation can take into account the pressure, the flow rate, the material constant of the coolant, or the temperature. This may also depend on the shape and arrangement of the nozzle 41, 61 used.
  • the gap height between a cooling shell and a roll or strip surface to be cooled may, for example, be between 0.1 cm and 2.5 cm and preferably between 0.2 cm and 1 cm.
  • the inlet region of the nozzle may, for example, have a light dimension or a flow cross-section which corresponds to 2 to 20 times the gap height.
  • the outlet area of the nozzle may preferably taper to a dimension which corresponds to 1 to 3 times the gap height.
  • Cooling medium may preferably be supplied to apparatus 1, 10, 11 or 111, for example at pressures of less than 5 bar or, in particular, at pressures of less than 1 bar.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Metal Rolling (AREA)

Claims (15)

  1. Dispositif (1, 10, 11, 111) pour diriger un courant de fluide de refroidissement pour le refroidissement d'un cylindre (2) ou d'une bande métallique (20), comprenant :
    un corps creux (3, 30, 33) s'étendant sur au moins une partie de la largeur du cylindre (2) ou de la bande métallique (20) ;
    un tube (5, 50, 55) disposé dans le corps creux (3, 30, 33) et s'étendant sur la largeur (B) du cylindre (2) ou de la bande métallique (20) ;
    caractérisé en ce que
    le corps creux (3, 30, 33) est subdivisé sur la largeur (B) du cylindre (2) ou de la bande métallique (20) en plusieurs chambres (7) et le tube (5, 50, 55) comprend des ouvertures (9, 90, 99) pour introduire le fluide de refroidissement à partir du tube (5, 50, 55) dans les chambres (7) du corps creux (3, 30, 33) et les chambres (7) comprennent respectivement une ouverture (8, 80, 88) pour évacuer le fluide de refroidissement du corps creux (3, 30, 33) ; et
    les chambres (7) comprennent respectivement un canal (12, 22, 222) formé entre la paroi interne du corps creux (3, 30, 33) et le tube (5, 50, 55) pour guider le fluide de refroidissement à partir des ouvertures (9, 90, 99) du tube (5, 50, 55) jusqu'aux ouvertures (8, 80, 88) pour évacuer le fluide de refroidissement du corps creux (3, 30, 33), et la section transversale d'écoulement du canal (12, 22, 222) se rétrécit au moins à son extrémité située en aval.
  2. Dispositif selon la revendication 1, dans lequel le tube (5, 50, 55) est disposé à l'intérieur du corps creux (3, 30, 33) d'une manière telle que sa périphérie peut être inondée en majeure partie par le fluide de refroidissement.
  3. Dispositif selon la revendication 1 ou 2, dans lequel le canal (12, 22, 122), lorsqu'on regarde dans la direction aval, manifeste un rétrécissement en continu au moins à partir de la moitié de sa longueur.
  4. Dispositif selon l'une quelconque des revendications précédentes, dans lequel les chambres (7) sont respectivement séparées les unes des autres par une paroi de séparation (14) qui sépare l'espace creux du corps creux (3, 30, 33) sur la largeur (B), tout en permettant l'écoulement du fluide de refroidissement à travers le tube (5, 50, 55) en direction des chambres (7).
  5. Dispositif selon la revendication 4, dans lequel la paroi de séparation (14) s'étend essentiellement perpendiculairement à la largeur (B) du cylindre (2) ou de la bande métallique (20).
  6. Dispositif selon l'une quelconque des revendications précédentes, dans lequel au moins un certain nombre des chambres (7) comprennent une paroi de séparation de l'écoulement (15) qui s'étend essentiellement à l'opposé de l'ouverture (8, 80, 88) pour l'évacuation du fluide de refroidissement à partir du corps creux (3, 30, 33) et comprennent au moins deux ouvertures (9, 90, 99) disposées dans le tube (5, 50, 55) essentiellement à l'opposé de l'ouverture (8, 80, 88) du corps creux (3, 30, 33) pour introduire le fluide de refroidissement dans les chambres (7), les ouvertures (9, 90, 99) pour l'introduction du fluide de refroidissement dans les chambres (7) étant disposées respectivement sur un des côtés de la paroi de séparation de l'écoulement (15) et la paroi de séparation de l'écoulement (15) séparant le fluide de refroidissement qui s'évacue par les ouvertures (9, 90, 99) du tube (5, 50, 55) en deux courants partiels qui sont délimités respectivement par le tube (5, 50, 55) et par la paroi interne du corps creux (3, 30, 33), qui sont guidés en étant séparés l'un de l'autre sur les côtés opposés du tube (5, 50, 55) dans la direction de l'ouverture (8, 80, 88) pour l'évacuation du fluide de refroidissement à partir du corps creux (3, 30, 33) et qui sont réunis à cet endroit pour obtenir un courant de fluide de refroidissement commun.
  7. Dispositif selon l'une quelconque des revendications précédentes, dans lequel au moins un certain nombre des chambres (7) du corps creux (3, 30, 33), et si on le souhaite également le tube (5, 50, 55) présentent, perpendiculairement à la largeur (B) du cylindre (2) ou de la bande métallique (20), une section transversale de forme triangulaire et les sorties (8, 80, 88) des chambres (3, 30, 33) se trouvent respectivement essentiellement à une pointe de la section transversale de forme triangulaire.
  8. Dispositif selon l'une quelconque des revendications 1 à 6, dans lequel au moins un certain nombre des chambres (7) du corps creux (3, 30, 33), et si on le souhaite également le tube (5, 50, 55) présentent, perpendiculairement à la largeur (B) du cylindre (2) ou de la bande métallique (20), une section transversale en forme de goutte et les sorties (8, 80, 88) des chambres (3, 30, 33) se trouvent respectivement essentiellement à une pointe de la section transversale en forme de goutte.
  9. Dispositif selon l'une quelconque des revendications précédentes, dans lequel la paroi interne du corps creux (3, 30, 33) est exempte d'arêtes saillantes.
  10. Dispositif selon l'une quelconque des revendications précédentes, dans lequel le dispositif comprend en outre des moyens pour le réglage du débit du fluide de refroidissement à travers les ouvertures (9, 90, 99) du tube (5, 50, 55), qui comprennent de préférence une ou plusieurs chicanes mobiles (13) qui peuvent être commandées ou au moins une soupape qui peut être commandée.
  11. Dispositif pour le refroidissement d'un cylindre (2) ou d'une bande métallique (20), comprenant :
    un dispositif (1, 10, 11, 111) pour diriger un courant de fluide de refroidissement selon l'une quelconque des revendications précédentes ;
    une enveloppe de refroidissement (40, 60) qui peut venir se disposer contre un cylindre (2) ou une bande métallique (20) ;
    au moins une buse (41, 61) pour introduire un courant de fluide de refroidissement dans une fente (43, 63) entre l'enveloppe de refroidissement (40, 60) et le cylindre (2) ou la bande métallique (20), la buse (41, 61) présentant une zone d'entrée (45, 65) possédant une section transversale de passage définie (A, A') et une zone de sortie (46, 66) pour le courant de fluide de refroidissement ;
    dans lequel les ouvertures (8, 80, 88) débouchent, pour l'évacuation du fluide de refroidissement à partir du corps creux (3, 30, 33), dans la zone d'entrée (45, 65) de la buse (41, 61).
  12. Dispositif pour le refroidissement d'un cylindre (2) ou d'une bande métallique (20), selon la revendication 11, dans lequel la zone de sortie (46, 66) de la buse (41, 61) débouche dans la fente (43, 63) entre l'enveloppe de refroidissement (40, 60) et le cylindre (2) ou la bande métallique (20).
  13. Dispositif pour le refroidissement d'un cylindre (2) ou d'une bande métallique (20), selon la revendication 11 ou 12, dans lequel la zone de sortie (46, 66) de la buse (41, 61) est reliée à l'enveloppe de refroidissement (40, 60) et est entourée au moins en partie par cette dernière.
  14. Dispositif pour le refroidissement d'un cylindre (2) ou d'une bande métallique (20), selon l'une quelconque des revendications 11 à 13, dans lequel les ouvertures (8, 80, 88) des chambres (7) du corps creux (3, 30, 33) débouchent dans la zone d'entrée (45, 65) de la buse (41, 61) et sont reliées, si on le souhaite, à la buse (41, 61).
  15. Dispositif pour le refroidissement d'un cylindre (2) ou d'une bande métallique (20), selon l'une quelconque des revendications 11 à 14, dans lequel l'enveloppe de refroidissement (40, 60) s'étend au moins sur une partie de la largeur et/ou de la périphérie (U) du cylindre (2) ; ou
    s'étend sur au moins une partie de la largeur de la bande métallique (20) sur la largeur (B) et/ou de la longueur de la bande métallique (20) dans la direction du laminage (W).
EP13702979.9A 2012-02-02 2013-01-31 Dispositif pour diriger un écoulement pour le refroidissement d'un cylindre ou d'une bande de métal Active EP2809460B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012201496A DE102012201496A1 (de) 2012-02-02 2012-02-02 Vorrichtung zum Richten einer Strömung zur Kühlung einer Walze oder eines Metallbandes
PCT/EP2013/051833 WO2013113775A1 (fr) 2012-02-02 2013-01-31 Dispositif pour diriger un écoulement pour le refroidissement d'un cylindre ou d'une bande de métal

Publications (2)

Publication Number Publication Date
EP2809460A1 EP2809460A1 (fr) 2014-12-10
EP2809460B1 true EP2809460B1 (fr) 2016-05-25

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US (1) US9440271B2 (fr)
EP (1) EP2809460B1 (fr)
JP (1) JP5780572B2 (fr)
KR (1) KR101632898B1 (fr)
CN (1) CN104203441B (fr)
DE (1) DE102012201496A1 (fr)
RU (1) RU2584371C2 (fr)
WO (1) WO2013113775A1 (fr)

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WO2018189705A1 (fr) 2017-04-13 2018-10-18 Cadila Healthcare Limited Vaccin pcsk9 à base de nouveaux peptides
RU2761304C1 (ru) 2018-06-13 2021-12-07 Новелис Инк. Системы и способы удаления вязких материалов при обработке металлических изделий
RU2730826C1 (ru) 2018-06-13 2020-08-26 Новелис Инк. Устройства и способы удерживания вязких материалов в прокатном производстве
BR112020001891A2 (pt) * 2018-06-13 2020-08-04 Novelis Inc. sistemas e métodos para refrigerar um rolo no processamento de metais
US11123782B2 (en) 2019-01-09 2021-09-21 Husky Corporation Versatile tubing straightener

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Publication number Publication date
US9440271B2 (en) 2016-09-13
WO2013113775A1 (fr) 2013-08-08
JP5780572B2 (ja) 2015-09-16
EP2809460A1 (fr) 2014-12-10
RU2014135530A (ru) 2016-03-27
DE102012201496A1 (de) 2013-08-08
US20150020564A1 (en) 2015-01-22
KR101632898B1 (ko) 2016-07-08
CN104203441B (zh) 2016-10-12
CN104203441A (zh) 2014-12-10
KR20140112087A (ko) 2014-09-22
RU2584371C2 (ru) 2016-05-20
JP2015509050A (ja) 2015-03-26

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