EP0414739B1 - Geradliniges wassersprühgerät zur kühlung von blechen - Google Patents

Geradliniges wassersprühgerät zur kühlung von blechen Download PDF

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Publication number
EP0414739B1
EP0414739B1 EP89905124A EP89905124A EP0414739B1 EP 0414739 B1 EP0414739 B1 EP 0414739B1 EP 89905124 A EP89905124 A EP 89905124A EP 89905124 A EP89905124 A EP 89905124A EP 0414739 B1 EP0414739 B1 EP 0414739B1
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EP
European Patent Office
Prior art keywords
water
spraying apparatus
air
tubes
blades
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
Application number
EP89905124A
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English (en)
French (fr)
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EP0414739A1 (de
Inventor
Georges Jean-Baptiste Chastang
Pierre Gaetan Lascoux
Paul Laurent Bertrand Lefevre
Bernard Charles Robert Chezlepretre
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Bertin Technologies SAS
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Bertin et Cie SA
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Filing date
Publication date
Application filed by Bertin et Cie SA filed Critical Bertin et Cie SA
Priority to AT89905124T priority Critical patent/ATE99565T1/de
Publication of EP0414739A1 publication Critical patent/EP0414739A1/de
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Publication of EP0414739B1 publication Critical patent/EP0414739B1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/22—Spouts
    • 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
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/025—Nozzles having elongated outlets, e.g. slots, for the material to be sprayed

Definitions

  • the invention relates to a linear device for spraying sheet cooling water comprising a sheath supplied with pressurized air, a longitudinal water chamber provided with water flow means, said means opening out between ejection means. directed pressurized air provided in the air duct to form a spray head.
  • a spraying device for the thermal treatment of sheets of large width comprising a horizontal cylindrical conduit for supplying water, provided along its upper generatrix with a flow slot.
  • This conduit is arranged in the vertical plane of symmetry of a hollow body, supplied with pressurized air, separated into two longitudinal sheaths by a hopper which receives at its inlet the water flowing from the conduit and which forms at its outlet a linear spray head.
  • This head has a central water outlet slot between two symmetrical rows of openings communicating with the longitudinal ducts for supplying air under pressure.
  • This device is designed to allow significant variations in the flow rate of the cooling water, while maintaining a homogeneous distribution along the length, without requiring geometrical and / or dimensional modifications of the spray head. It appeared, however, that the homogeneity of the cooling jet which should come into contact with the sheet to be treated is highly dependent on the horizontality of the water supply duct as well as on the tolerances of the various elements constituting the device. In addition to the constancy of water flow from one end to the other of the spray head, the elementary jets forming the sheet jet must reach the surface to be cooled in an identical direction and in planes perpendicular to the direction of travel of the sheets from one edge of the sheet to the other.
  • the arrangement of the outlet openings for pressurized air has the same level that the water supply slot can, as a result of manufacturing tolerances, favor deviations of certain elementary jets relative to the general direction, deviations which result in the non-homogeneity of the cooling of the transverse zone of the sheet passing in front of the sprayer.
  • the object of the invention is a device comparable to that described above but in which the drawback resulting from a non-horizontality of the water pipe is eliminated.
  • the spraying device is characterized in that the means for discharging the cooling water consist at least in part of cylindrical tubes, distributed along the water chamber, said tubes having dimensional and / or shape characteristics introducing a significant pressure drop in the flow of water passing through them, which minimizes the local pressure variations likely to occur in the water chamber at the inlet of the tubes, and defining directions of impact of the identical elementary spray jets over the entire length of the sprayer.
  • Figure 1 is a partially cutaway perspective view of an embodiment of a spraying device according to the invention, the jet is directed downwards.
  • Figure 2 is a cross-sectional view of the device of Figure 1.
  • FIG. 3 is a view according to arrow III in FIG. 2.
  • FIG. 3A is an enlarged view of the portion A of FIG. 3.
  • FIG. 4 is a view along IV-IV of FIG. 3.
  • Figure 5 is a cross-sectional view of an exemplary embodiment of a device whose jet is directed upwards.
  • Figure 6 is a front view of a blade segment.
  • FIG. 7 is a top view of the segment of FIG. 6.
  • FIG. 8 is a sectional view along VIII-VIII of FIG. 6.
  • FIG. 9 is a sectional view along IX-IX of FIG. 6.
  • FIG. 10 is a sectional view along X-X of FIG. 6.
  • Figure 11 is a perspective view of the air ducts.
  • FIG. 12 is a view in horizontal projection of the air ducts of FIG. 11.
  • FIG. 1 represents an exemplary embodiment of a linear spraying device.
  • This sprayer is more particularly intended for producing a jet in a long length of sheet, transverse to the sheet and directed downwards, usable for example in a heat treatment assembly for the passing of sheets leaving a hot rolling mill.
  • Figure 2 is a cross-sectional view of said device according to II-II of Figure 1 and Figure 3 is a front view along arrow III of Figure 2.
  • Figure 3 is a front view along arrow III of Figure 2.
  • the spraying device 1 is in the form of a long parallelepipedic box, the lower part of which is arranged to form two separate air ducts 3 and 4, in the vertical longitudinal plane of symmetry of the box 1 through a passage 5.
  • the ducts are closed along one of their longitudinal faces by sealed casings 2 and are supplied with pressurized air at one of their ends 6.
  • the lower part of the ducts comprises means 7 for directed ejection of the pressurized air , said means extending longitudinally on either side of the passage 5 through which the cooling water arrives.
  • the upper part of the casing 1 houses a longitudinal chamber 8, supplied with cooling water, at one of its ends by a conquest 9.
  • the water chamber carries, at its upper part, along its longitudinal axis of symmetry, orifices 10 provided with flow means 11 which are at least partially housed in the passage 5 provided between the two air ducts 3, 4.
  • the flow means 11 comprise at least one pressure drop tube 12, one end of which is fixed in the orifice 10 of the water chamber 8 and the other end of which enters a guide duct 13, of upper section to that of the pressure drop tube, allowing free but guide runoff of the cooling water.
  • the pressure drop of the tubes is defined, as known, by their dimensional and / or shape characteristics.
  • the pressure drop tube 12 is approximately in the shape of an inverted U and the total pressure drop between the ends 14 and 15 is mainly due to friction losses in the straight parts of the tube 12, to which are added the pressure drops in the two elbows, all these losses varying proportionally as a function of the flow rate.
  • the inlet and outlet losses are inevitable, but fixed for a given flow rate, the overall pressure drop is adjusted by varying the length of the tube, all other things remaining equal.
  • the inlet 14 and outlet 15 ends of said tubes are approximately in the same horizontal plane, this plane preferably being slightly above the level of the orifices 10 provided in the upper wall of the water chamber 8.
  • the inlets and outlets of the tubes are internally chamfered which guarantees the identity shape of the outlets of all the tubes and therefore the equality of the corresponding input / output pressure losses at the price possibly of a negligible length variation.
  • the pressure drop tubes 12 have the function of regulating the flow rate of the cooling water sent to the spray head.
  • the flow rate in a tube varies as the square root of the difference in pressures between the inlet and the outlet of the tube.
  • the pressure of the water over the entire length of the water chamber is not constant, due to local hydrodynamic and / or dimensional variations, of the perfect non-horizontality of the upper wall of the chamber carrying the orifices. and the mode of supplying the chamber from a single end. This supply asymmetry is all the more sensitive the lower the supply pressure of the chamber.
  • the flow means 11 also comprise a guide tube 13 of sufficient section to allow, within the limits of the flow rates allowed by the pressure drop tube, a runoff directed by the walls thereof.
  • a guide tube 13 of sufficient section to allow, within the limits of the flow rates allowed by the pressure drop tube, a runoff directed by the walls thereof.
  • rectangular section tubes are used whose large faces are arranged parallel to the plane of symmetry vertical of the sprayer.
  • the dimension ratio between the adjacent sides of the rectangle is for example of the order of 1.5.
  • the guide tubes 13 form a continuous sheet extending from one end to the other of the sprayer.
  • the guide tubes 13 are bent so that their lower part is received in the passage 5 provided between the air ducts 3 and 4.
  • the outlet ends 17 of the guide tubes are fixed in a prismatic water outlet channel 18, forming a continuous slot 19.
  • the spray head 16 in particular, consists of the water outlet channel 18 and means 7 for directed ejection of the air under pressure. These means extend, as previously described, on either side of the continuous slot 19 formed by the outlet channel 18 of the water.
  • the quality of the treated product depends on the homogeneity of the jet but also on its direction of impact with respect to the transverse cooling zone, hence the need rigorous local control, not only of the cooling water flow, but also of the direction of the spray jet resulting from the combination of pressurized air flows passing through the directed ejection means.
  • the curvature of the blades is provided so that the air flow admitted at one end of the air ducts is directed perpendicular to its direction of entry.
  • the plane tangent to the trailing edge of the blades must preferably be perpendicular to the surface of the product to be treated.
  • the planes of symmetry P of the left blades 20A and right 20B are inclined to the plane of longitudinal symmetry with the sprayer of equal angles (of the order of 25 °), so that the air jets from the right and left blades intersect in said plane which is also the surface of the cooling water runoff.
  • the impact of high speed air on water at low speed causes the water to split into droplets which are then entrained and projected onto the moving sheet.
  • the blading segments 21A, 21B are in the form of pieces of prismatic cast steel, the cross section of which shows two opposite curved and converging walls. Between these walls and integral with them, the blades 21 are provided. The leading edges of the blades are maintained in the widest part of the parts, the shape of which appears clearly in FIGS. 6 to 10. The blades form between them laterally converging conduits, opening out through rectangular orifices 22, separated from one another by transverse walls 23 of small thickness, corresponding to the trailing edges of the blades not producing any appreciable longitudinal sectioning of the air jet.
  • These parts 21 are provided on their various faces with bosses 24 and 25, allowing them to be fixed on the water outlet channel 18.
  • the bottoms of the air ducts 3 and 4 are firm by watertight housings 2, at the end of which outlet lips 26, 27 are provided extending, substantially in alignment, the lateral internal wall, not adjacent to the water outlet channel, blade segments au- beyond the water outlet slot 19. These lips define a volume forming a spray chamber.
  • thermal protection of the spray head consisting of two screens 28, 29 fixed to the outlet lips 26, 27.
  • the blades described above make it possible to obtain elementary air jets, formed by each orifice, in perfectly determined directions.
  • the flow rate and the pressure of the spraying air supplying each of the elementary jets must be perfectly constant throughout the length of the ducts. .
  • the pressurized air is introduced at the end of the ducts 3 and 4, which have a decreasing section as a function of the distance from the inlet so as to obtain a constant air speed upstream of the blurring. This reduction in cross-section can be obtained, for example, as shown in FIGS.
  • a spray jet having over the length of the sprayer, particular flow and pressure characteristics, so as to obtain, for example, a low cooling at the ends corresponding to the edges of the sheet, while the cooling is maximum in the central part. It will be easy to give the desired profile by providing the cooling water supply to the spray head by friction loss tubes of different characteristics.
  • the adjustment of the spraying length as a function, for example, of the sheet widths, can be obtained using an adjustable closure device 32 (FIG. 2), placed inside the water chamber 8 so to allow the closure of a portion of the orifices 10 provided in the wall of the chamber for the passage of cooling water.
  • This device is similar to that described in French patent application No. 88 05351 filed on the same day in the name of the BERTIN Company, and will not be further described.
  • FIG. 5 shows another embodiment of a sprayer according to the invention, more particularly intended for producing an upwardly directed sheet jet, of great length.
  • the positions of the water box 33 and the air ducts 34 and 35 are reversed with respect to those of the previous embodiment.
  • the sprayer is in the form of a long parallelepipedic box 36, the lower part of which is arranged to form a water box 33 and the upper part of which forms two independent air ducts 34 and 35 separated in the vertical longitudinal plane of symmetry of the box 36 through a passage 37.
  • These water boxes and ducts are supplied, at one of their ends, with water and air under pressure.
  • the sheaths have a decreasing section depending on the distance from the entrance.
  • the upper part of the sheaths comprises means 38 for directed ejection of pressurized air, which extend longitudinally on either side of the passage 37 through which the cooling water arrives.
  • the water chamber 33 carries at its upper part, along its longitudinal axis of symmetry, flow means 39 which are at least partially housed in the passage 37 provided between the two air ducts 34, 35.
  • the flow means consist of cylindrical and rectilinear pressure drop tubes 40 passing tightly and perpendicularly, a sealing plate 41 closing the passage 37, the axis of the tubes being in the vertical plane of symmetry of the passage.
  • the dimensional characteristics of the pressure drop tubes are provided according to the regulation water flow rate sent to the spray head. In order to minimize the action of the edges of the inlet and outlet ports of the tubes, they are internally chamfered.
  • the end of the tubes 40 opens into a prismatic water outlet channel 42, having a continuous slot 43 and comprising partitions 52, each tube opening in the axis of the interval between two consecutive partitions.
  • the spray head 44 consists of the water outlet channel 42 and means 38 for directed ejection of the pressurized air. These means similar to those described in the previous embodiment, extend on either side of the continuous slot 43.
  • the ejection means 38 consist of blade segments 45, 46 arranged one after the other along the entire length of the slot, so as to form a continuous band on each side of the slot.
  • the converging walls of the blades are extended on one side by the converging wall of the water outlet channel forming the slot and on the other by outlet lips 47 extending beyond the edges of the slot 43.
  • the head spraying is optionally protected by heat shields 48, 49.
  • a jet breaker 50 which, in the exemplary embodiment , is in the form of a cylindrical rod arranged inside the channel 42 and extending longitudinally from one end to the other thereof. The rod is held from place to place by supports 51 or the partitions 52 arranged perpendicular to this longitudinal plane of symmetry of the slot and of the channel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Claims (17)

  1. Geradliniges Kühlwassersprühgerät mit zwei mit Druckluft beschickten Kanälen (3,4), einer Längskammer (8), die mit Wasserströmungseinrichtungen (11) versehen ist, welche zwischen Ejektionseinrichtungen (7) münden, die die Druckluft ansteuern und in den Luftkanälen vorgesehen sind, um einen Sprühkopf zu bilden, dadurch gekennzeichnet, daß die Wasserströmungseinrichtungen (11,39) mindestens teilweise durch zylindrische Rohre (12,40) gebildet sind, die über die Länge der Wasserkammer (8,33) verteilt sind und solche Abmessungseigenschaften und/oder eine solche Form besitzen, daß der die Rohre passierende Wasserstrom einen Druckabfall erfährt, welcher in jedem Fall sehr viel höher ist als örtliche Druckschwankungen, die stromauf in der Wasserkammer (8,33) am einen Ende der Rohre (12,40) entstehen können.
  2. Kühlwassersprühgerät nach Anspruch 1, dadurch gekennzeichnet, daß der durch die Rohre (12,40) bewirkte Druckabfall unvermeidbare Eintritts-, Austritts- und möglicherweise Krümmungsverluste sowie in erster Linie zur Länge der Rohre proportionale Reibungsverluste umfaßt, wobei es die Rohrlänge ermöglicht, konstante oder veränderliche Wasserverteilungsprofile von einem Ende zum anderen des Sprühgerätes zu erhalten.
  3. Sprühgerät nach Anspruch 1, dadurch gekennzeichnet, daß die zylindrischen Rohre (12) eine Form besitzen, die etwa der eines umgekehrten U entspricht, wobei eines der Enden (14) eines jeden Rohres in einer Öffnung (10) einer Reihe von Öffnungen, die in der Wasserkammer (8) vorgesehen sind, fixiert ist und das andere Ende (15) ein Ende eines Führungsrohres (13) durchdringt, dessen Querschnitt größer ist als der des zylindrischen Rohres (12), um Wasser zwischen die Luftejektionseinrichtungen (7) zu führen.
  4. Sprühgerät nach Anspruch 3, dadurch gekennzeichnet, daß das Führungsrohr (13) einen rechteckigen Querschnitt besitzt und so ausgewählt ist, daß sich ein Teil des Rohres in einem Längskanal (5) befindet, der zwischen den Luftkanälen (3,4,) vorgesehen ist, wobei das andere Ende (17) des Führungsrohres (13) in einem prismatischen Wasseraustrittskanal (18) mündet, der einen kontinuierlichen Spalt (19) bildet.
  5. Sprühgerät nach Anspruch 4, dadurch gekennzeichnet, daß die Führungsrohre (13) mit ihren kleinen Seiten Seite an Seite angeordnet sind, um eine kontinuierliche Fläche zu bilden, die sich von einem Ende bis zum anderen Ende des Sprühgerätes erstreckt.
  6. Sprühgerät nach Anspruch 3, dadurch gekennzeichnet, daß die Enden (14) und (15) der Rohre (12) in einer gleichen Horizontalebene liegen, die geringfügig über dem Niveau der in der oberen Wand der Wasserkammer (8) vorgesehenen Öffnungen (10) angeordnet ist.
  7. Sprühgerät nach Anspruch 1, dadurch gekennzeichnet, daß die geradlinigen zylinderischen Rohre (40) in senkrechter Richtung eine Absperrplatte (41) durchdringen, die einen Längskanal (37) verschließt, der zwischen den Luftkanälen (34,35) vorgesehen ist, wobei sich die Achse der Rohre in der vertikalen Symmetrieebene des Kanales (37) erstreckt.
  8. Sprühgerät nach Anspruch 7, dadurch gekennzeichnet, daß die Teile des Rohres (40), die, in bezug auf die Absperrplatte,gegenüber den in Richtung auf den Kanal (37) und den Wasserkasten (33) eingerichteten Teilen liegen, in einen prismatischen Wasseraustrittskanal (42) münden, der einen kontinuierlichen Austrittsspalt (43) vorsieht, welcher zwischen den das Gas ansteuernden Ejektionseinrichtungen angeordnet ist.
  9. Sprühgerät nach Anspruch 8, dadurch gekennzeichnet, daß der Wasseraustrittskanal (42) Trennwände (52) aufweist, zwischen denen jedes Rohr (39) auf der Achse des Intervalles, das zwischen zwei aufeinanderfolgenden Trennwänden gebildet wird, mündet.
  10. Sprühgerät nach Anspruch 8, dadurch gekennzeichnet, daß ein Wasserstrahlregler (50) auf der Achse des zylindrischen Rohres (40) im Wasseraustrittskanal (42) vorgesehen ist.
  11. Sprühgerät nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die die Druckluftsteuernden Ejektionseinrichtungen (7,38) durch Schaufeln (20) gebildet sind, die in jedem Luftkanal eine hinter der anderen angeordnet sind, um eine sich von einem Ende bis zum anderen Ende des Sprühkopfes (16,44) erstreckende Beschaufelung zu bilden, wobei die Anordnung und Krümmung der Schaufeln derart getroffen ist, daß der an einem Ende der Luftkanäle (3,4;34,35) eintretende Luftstrom senkrecht zur Eintrittsrichtung umgelenkt wird, weil sich die Tangentialebene an den Durchlaßrand der Schaufeln senkrecht zur Oberfläche des zu behandelnden Produktes erstreckt.
  12. Sprühgerät nach Anspruch 11, dadurch gekennzeichnet, daß die Symmetrieebenen der Schaufeln von einem Luftkanal (3,34) und die der Schaufeln des anderen Luftkanales (4,35) im bezug auf die Längssymmetrieebene des Sprühgerätes unter gleichen Winkeln geneigt sind, so daß sich die von beiden Beschaufelungen abgegebenen Luftstrahlen in dieser Längssymmetrieebene schneiden.
  13. Sprühgerät nach Anspruch 12, dadurch gekennzeichnet, daß die Beschaufelungen durch Schaufelsegmente (21A,21B;45,46) gebildet sind, die prismatische Elemente bilden, deren Querschnitt zwei gegenüberliegende gekrümmte und konvergierende Wände aufweist, zwischen denen die konvergierende Leitungen bildenden Schaufeln aufrechterhalten werden, wobei die Leitungen in Rechtecköffnungen (22) münden, die durch Querwände (23) voneinander getrennt sind, welche von den Durchlaßrändern der Schaufeln gebildet werden.
  14. Sprühgerät nach Anspruch 13, dadurch gekennzeichnet, daß die Schaufelsegmente (21A,21B;45,46) auf beiden Seiten des Wasseraustrittskanales (18,42) fixiert sind.
  15. Sprühgerät nach Anspruch 14, dadurch gekennzeichnet, daß Düsenaustritteile (26,27) die seitliche Innenwand, die nicht zum Wasseraustrittskanal benachbart ist, der Schaufelsegmente merklich über die Ränder des Wasseraustrittsspaltes (19) hinaus verlängern, um eine Sprühkammer auszubilden.
  16. Sprühgerät nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Querschnitt der Luftkanäle (3,4;34,35) ausgehend von dem mit Luft beschickten Ende annähernd abnimmt, um eine konstante Luftgeschwindigkeit aufstromseitig der Schaufeln zu erhalten.
  17. Sprühgerät nach Anspruch 10, dadurch gekennzeichnet, daß der Wasserstrahlregler (50) durch einen zylindrischen Stift gebildet ist, der im Inneren des Wasseraustrittskanales (42) angeordnet ist und sich in Längsrichtung von einem Ende zum anderen Ende des Kanales erstreckt.
EP89905124A 1988-04-22 1989-04-20 Geradliniges wassersprühgerät zur kühlung von blechen Expired - Lifetime EP0414739B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89905124T ATE99565T1 (de) 1988-04-22 1989-04-20 Geradliniges wasserspruehgeraet zur kuehlung von blechen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8805350A FR2630350B1 (fr) 1988-04-22 1988-04-22 Dispositif de pulverisation lineaire d'eau de refroidissement de toles
FR8805350 1988-04-22

Publications (2)

Publication Number Publication Date
EP0414739A1 EP0414739A1 (de) 1991-03-06
EP0414739B1 true EP0414739B1 (de) 1994-01-05

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EP89905124A Expired - Lifetime EP0414739B1 (de) 1988-04-22 1989-04-20 Geradliniges wassersprühgerät zur kühlung von blechen

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US (1) US5118041A (de)
EP (1) EP0414739B1 (de)
JP (1) JP2744312B2 (de)
KR (1) KR970001786B1 (de)
AU (1) AU628055B2 (de)
BR (1) BR8907389A (de)
DE (1) DE68912125T2 (de)
FR (1) FR2630350B1 (de)
WO (1) WO1989010203A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4110127A1 (de) 1991-03-27 1992-10-01 Herbert Huettlin Duesenbaugruppe zum verspruehen von fluessigkeiten
FR2675718A1 (fr) * 1991-04-29 1992-10-30 Bertin & Cie Procede et dispositif de refroidissement d'un profile en cours de laminage.
US5680991A (en) * 1992-07-29 1997-10-28 Truitt; Archie Arthur Air distribution system and sprayer incorporating an air distribution system
FR2695842B1 (fr) * 1992-09-18 1994-12-30 Bertin & Cie Appareil de pulvérisation linéaire d'un liquide, notamment de refroidissement.
JP3257340B2 (ja) * 1995-05-24 2002-02-18 松下電器産業株式会社 液体塗布方法、液体塗布装置およびスリットノズル
CN100443207C (zh) * 2007-03-28 2008-12-17 辽宁省轧制工程技术中心 可形成扁平喷射流的冷却装置
CN102274808A (zh) * 2011-07-08 2011-12-14 东北大学 可形成高密度喷射流的冷却装置
KR101526859B1 (ko) * 2013-11-19 2015-06-10 주식회사 삼우에코 연속소둔설비의 급속냉각장치
KR101572942B1 (ko) 2014-09-29 2015-12-01 주식회사 삼우에코 연속소둔설비의 급속냉각장치

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578449B1 (fr) * 1985-03-06 1987-05-07 Bertin & Cie Dispositif de pulverisation lineaire
FR2578553B1 (fr) * 1985-03-06 1989-01-06 Bertin & Cie Installation de refroidissement par pulverisation
US4936882A (en) * 1989-05-22 1990-06-26 Chen Jia H Fluid dynamic cooling tower

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Publication number Publication date
DE68912125D1 (de) 1994-02-17
FR2630350B1 (fr) 1990-08-31
AU3539589A (en) 1989-11-24
FR2630350A1 (fr) 1989-10-27
JPH03505298A (ja) 1991-11-21
BR8907389A (pt) 1991-04-16
WO1989010203A1 (fr) 1989-11-02
KR970001786B1 (ko) 1997-02-15
DE68912125T2 (de) 1994-08-11
KR900700189A (ko) 1990-08-11
US5118041A (en) 1992-06-02
EP0414739A1 (de) 1991-03-06
JP2744312B2 (ja) 1998-04-28
AU628055B2 (en) 1992-09-10

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