EP0215830B1 - Vorrichtung zum abkühlen durch sprühen - Google Patents

Vorrichtung zum abkühlen durch sprühen Download PDF

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Publication number
EP0215830B1
EP0215830B1 EP86901411A EP86901411A EP0215830B1 EP 0215830 B1 EP0215830 B1 EP 0215830B1 EP 86901411 A EP86901411 A EP 86901411A EP 86901411 A EP86901411 A EP 86901411A EP 0215830 B1 EP0215830 B1 EP 0215830B1
Authority
EP
European Patent Office
Prior art keywords
chambers
water
bars
spray
casing
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
Application number
EP86901411A
Other languages
English (en)
French (fr)
Other versions
EP0215830A1 (de
Inventor
Stéphane Georges Jean-Marie VIANNAY
Bernard Marie Roth
Solange Marie Virginie Mirigay
Georges Jean Baptiste Chastang
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.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bertin et Cie SA filed Critical Bertin et Cie SA
Priority to AT86901411T priority Critical patent/ATE43644T1/de
Publication of EP0215830A1 publication Critical patent/EP0215830A1/de
Application granted granted Critical
Publication of EP0215830B1 publication Critical patent/EP0215830B1/de
Expired legal-status Critical Current

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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
    • C21D1/62—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
    • 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
    • C21D9/56—Continuous furnaces for strip or wire
    • C21D9/573—Continuous furnaces for strip or wire with cooling

Definitions

  • the invention relates to a spray treatment installation more particularly intended for cooling metallurgical products successively comprising spraying means and a suction box disposed in front of a material such as plate, sheet metal, etc. continuously scrolling.
  • Installations having the same aims have been adapted to operations comprising the projection of powdered products onto surfaces already coated with a base coating before proceeding to fix the coating by heat or chemical treatment.
  • European patent application No. 0 117 958 describes a device intended to collect a gas charged with metallic powder after this has been used for coating a strip provided with a base coating.
  • the device comprises a box formed by two symmetrical casings between which the strip to be covered circulates.
  • the box is divided lengthwise into three compartments, the first and last compartments comprising means for blowing the gas loaded with powder and the central compartment having return slots for collecting the gas loaded with residual metal powder.
  • the central compartment is connected to the suction of a fan and the charged gas is sent to a metering device which restores the powder content before it returns to the gas blowing means. Aerodynamic seals are provided at the ends of the box to prevent the blown gas loaded with metal powder from escaping outside the device.
  • This device is suitable for thin sheets capable of running vertically but cannot be suitable for the treatment of thick sheets which must necessarily run horizontally.
  • film boiling regime non-wetting regime
  • the water droplets fractionate in contact with the wall to cool with a very low evaporation and spur out.
  • the object of the invention is to provide an installation for treating by spraying a liquid, intended for the cooling of a metallurgical product continuously scrolling and for the evacuation of the sprayed water by the organization of gas flows conveying the droplets so as to avoid asymmetric cooling of the treated surface.
  • the invention can in particular be used for the formation of a moderate cooling zone as provided for in patent FR-A-2,571,384 in the name of the applicant.
  • the treatment installation according to the invention is carried out according to the characteristics described in claim 1.
  • the distance between consecutive spraying booms will be sufficient so that there is substantially no direct interaction between the jets of successive sprayers and that it is, moreover, possible to form and separate directed flow zones.
  • the distance between consecutive spraying booms will be sufficient so that there is substantially no direct interaction between the jets of successive sprayers and that it is, moreover, possible to form and separate directed flow zones.
  • the suction boxes placed between the spray bars and also at the two ends of the machine are located directly above the area where the gas and droplet flows from two successive spray bars meet; they include skirts provided on the edges of the suction opening confining the zone of spouting of flows and droplets.
  • the installation according to the invention is intended for the cooling of a metallurgical product which passes horizontally after, for example, its exit from a treatment furnace or from a rolling mill.
  • the booms are made up of two-dimensional ply jet sprayers such as those described, for example, in French Patent No. 2,375,911. The jets of the sprayers reach the sheet, spread out along its surface then rebound during the interaction with the flows coming from the neighboring sprayers.
  • the suction boxes are placed between the sprayers above the area in which the air and droplet flows are reflected, the area being confined by skirts carried by the openings of the boxes, the free edge of which descends near the surface of the sheet. The distance separating the edge of the skirt from the surface of the sheet allows the passage of the air flow conveying the droplets reflecting after impact on the sheet.
  • lower ramps 10 whose jets are directed from bottom to top, are arranged below the sheet, and approximately opposite the upper ramps 7, 8, 9 so that the surface covered by the jets on the lower surface of the sheet corresponds to that covered on the upper surface by the jets of the upper ramps. This avoids the tensions produced by cooling differences on the two faces of the sheet and consequently the deformations.
  • FIG. 2 An embodiment of the suction boxes is shown in Figure 2.
  • a box is formed of a metal frame, of approximately parallelepiped shape, closed on three of its longitudinal ribs by a formwork ensuring sealing. The ends of the box are closed by plates 11 carrying a central hatch 12 giving access to the drop separator.
  • the profiles constituting the upper part of the chassis extend outside the formwork to secure the box on the main frame of the installation.
  • the upper wall 13 of the formwork carries, according to the embodiment, two circular passages 14, 15 on which are fixed cylindrical housings 16, 17 connected to the suction of fans (not shown).
  • the box has at its lower part, approximately in the extension of its side faces 18, 19, mobile skirts 20, 21 which confine and isolate the rebound zone avoid, in case of deformation of the sheet to be treated, the deterioration of the boxes and allowing the passage of the deformed sheet.
  • This arrangement makes it possible to place the upper sprayers at a sufficient distance from the pass line (for example 0.7 m) to allow the passage of deformed sheets without damaging the machine.
  • the box leaves at its lower part a longitudinal opening 22 of relatively large width, limited on one side by a gutter 23 and on the other by a partition 24 which forms, with an upper wall 25 and one face of a separator of drops 26, a chamber in which is sucked the air-droplet mixture flowing between the skirts 20, 21.
  • a certain part of the droplets settle on the walls and fall back into the gutter 2, 3 while the other part passes through the plates separator 26 where the droplets are retained and flow in the lower part between the partition 24 and the wall 19 forming a gutter 27.
  • Boxes 28, 29 provided at the ends of the box, receive the water recovered by the gutters which is led by pipes (not shown) to an evacuation or to a recycling installation.
  • the number of elements of the installation depends on the length of the product to be treated but also on the desired cooling capacity.
  • the drop separators 26 can, as a variant, be arranged outside the suction boxes. In this case, several boxes can be connected to a single box carrying the separators 26 and the suction fans.

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 Treatments In General, Especially Conveying And Cooling (AREA)
  • Fertilizers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Catching Or Destruction (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Road Signs Or Road Markings (AREA)
  • Transplanting Machines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Claims (8)

1. Anlage zur Abkühlung, durch Zerstäubung von Wasser, für eine Platte eines Materials mit hoher Temperatur, insbesondere eines starken Bleches (2) mit großen Ausmessungen, das durch die Anlage hindurchwandert, wobei diese Zerstäuberrampen (7, 8, 9) enthält, die mit Wasser und Luft unter Druck versorgt werden, was die Zerstäubung des Wassers in Tropfen und deren Transport mit hoher Geschwindigkeit auf die zu kühlende Platte (2) gewährleistet, und abwechselnd dazu mit Abzugskästen (3, 4, 5, 6) versehen ist, dadurch gekennzeichnet, daß die in horizontaler Richtung durch die Anlage vorbeiwandernde Platte auf ihren beiden Flächen gekühlt wird, wobei lediglich die oberen Zerstäuberrampen (7, 8, 9) zwischen den Abzugskästen (3, 4, 5, 6) angeordnet sind dergestalt, daß jede Rampe zwischen zwei Kästen angeordnet ist und von diesen durch einen Raum getrennt ist, der Eingänge für die Außenluft bildet dergestalt, daß symmetrische Strömungen von Abführluft erzeugt werden, die selektiv die zurückspritzenden Tröpfchen mitreißen und nach oben evakuieren, die durch die mechanische und thermische Fraktionierung der Wassertropfen während des Auftreffens auf der oberen Fläche der Platte gebildet werden.
2. Anlage nach Anspruch 1, dadurch gekennzeichnet, daß die Abzugskästen (3, 4, 5, 6) dazu vorgesehen sind, die Gesamtheit der durchströmenden Abführluft zu evakuieren, inklusive der durchströmenden Zerstäuberluft, die durch die Rampen (7, 8, 9) injiziert wird und der durchströmenden trockenen Luft, die zwischen den Kästen und Rampen auftritt.
3. Anlage nach Anspruch 1, dadurch gekennzeichnet, daß die oberen Zerstäuberrampen (7, 8, 9) und der untere feste Teil der Abzugskästen (3, 4, 5, 6) in einer ausreichend großen Entfernung zu der Durchführlinie angeordnt sind, um ein Hindurchführen von deformierten Blechen zu erlauben, ohne daß dabei die Maschine beschädigt wird.
4. Anlage nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß mindestens eine der Zerstäuberrampen (7, 8, 9) durch einen Zerstäuber mit flächigem Strahl (jet en nappe) gebildet wird.
5. Anlage nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie Zerstäuberrampen (10) enthält, die unter der unteren Fläche des Plattenmaterials (2) in etwa gegenüber den Zerstäuberrampen (7 bis 9) der oberen Fläche angeordnet sind.
6. Anlage nach einem der vorhergehenden Ansprüche, in der die Abzugskästen (3, 4, 5, 6) durch ein Gehäuse in Form eines Langwürfels gebildet werden, das auf drei seiner Längsseiten geschlossen ist, dadurch gekennzeichnet, daß die Kästen im Bereich der vierten Seite eine Längsöffnung (22) aufweisen, die zumindest in einem ihrer Längsränder durch eine Tropfrinne (23, 27) begrenzt wird, die das durch die Tröpfchen, die sich auf den Seiten (18, 19) des Gehäuses absetzen, gebildete Wasser auffängt, wobei Sammelvorrichtungen (28, 29) an den Enden des Kastens vorgesehen sind, die das Wasser der Tropfrinnen aufnehmen und weiterhin dadurch gekennzeichnet, daß die gegenüberliegenden Seiten (18, 19) des Gehäuses, die sich zu beiden Seiten der Öffnung (22) befinden, in ihrer Verlängerung bewegliche Schürzen (20, 21) tragen.
7. Anlage nach Anspruch 6, dadurch gekennzeichnet, daß der andere Längsrand der Öffnung durch eine Scheidewand (24) begrenzt wird, die eine Fläche eines Tröpfchenabscheiders (26) enthält und die mit der der Öffnung gegenüberliegenden Seite des Gehäuses eine Kammer bildet, in die das aus Luft und Tröpfchen bestehende Gemisch gesogen wird, wobei sich die durch den Abscheider (26) zurückgehaltenen Tröpfchen zwischen der Scheidewand (24) und der Seite (19) des Kastens in Richtung der Sammelvorrichtungen (28, 29) bewegen, die an den Enden des Kastens zur Aufnahme des Wassers aus den Tropfrinnen vorgesehen sind.
8. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Tröpfchenabscheider (26) außerhalb der Abzugskästen (3, 5, 6) angeordnet sind, wobei mehrere Kästen an ein einziges Gehäuse angeschlossen sind, das die Abscheider (26) und die Ansauggebläse trägt.
EP86901411A 1985-03-06 1986-02-21 Vorrichtung zum abkühlen durch sprühen Expired EP0215830B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86901411T ATE43644T1 (de) 1985-03-06 1986-02-21 Vorrichtung zum abkuehlen durch spruehen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8503281A FR2578553B1 (fr) 1985-03-06 1985-03-06 Installation de refroidissement par pulverisation
FR8503281 1985-03-06

Publications (2)

Publication Number Publication Date
EP0215830A1 EP0215830A1 (de) 1987-04-01
EP0215830B1 true EP0215830B1 (de) 1989-05-31

Family

ID=9316916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901411A Expired EP0215830B1 (de) 1985-03-06 1986-02-21 Vorrichtung zum abkühlen durch sprühen

Country Status (12)

Country Link
US (1) US4711431A (de)
EP (1) EP0215830B1 (de)
JP (1) JPS62500182A (de)
KR (1) KR900004651B1 (de)
AT (1) ATE43644T1 (de)
AU (1) AU582976B2 (de)
DE (1) DE3663685D1 (de)
FI (1) FI81121C (de)
FR (1) FR2578553B1 (de)
IN (1) IN163108B (de)
NO (1) NO864422L (de)
WO (1) WO1986005210A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2630350B1 (fr) * 1988-04-22 1990-08-31 Bertin & Cie Dispositif de pulverisation lineaire d'eau de refroidissement de toles
FR2671741B1 (fr) * 1991-01-23 1995-05-05 Bertin & Cie Procede et installation de refroidissement au defile avec trempe de produits plats.
US5220804A (en) * 1991-12-09 1993-06-22 Isothermal Systems Research, Inc High heat flux evaporative spray cooling
DE4234285A1 (de) * 1992-10-10 1994-04-14 Heimsoth Verwaltungen Verfahren zur Wärmebehandlung von metallischem Gut
DE59510307D1 (de) * 1994-06-23 2002-09-12 Elpatronic Ag Bergdietikon Verfahren zur Nachbehandlung geschweisster Platinen
US5831824A (en) * 1996-01-31 1998-11-03 Motorola, Inc. Apparatus for spray-cooling multiple electronic modules
US5675473A (en) * 1996-02-23 1997-10-07 Motorola, Inc. Apparatus and method for shielding an electronic module from electromagnetic radiation
US5718117A (en) * 1996-04-10 1998-02-17 Motorola, Inc. Apparatus and method for spray-cooling an electronic module
US5687577A (en) * 1996-04-10 1997-11-18 Motorola, Inc. Apparatus and method for spray-cooling an electronic module
US5943211A (en) * 1997-04-18 1999-08-24 Raytheon Company Heat spreader system for cooling heat generating components
US5731542A (en) * 1996-05-23 1998-03-24 Motorola, Inc. Apparatus and method for mounting an electronic component to a substrate and method for spray-cooling an electronic component mounted to a substrate
US5907473A (en) * 1997-04-04 1999-05-25 Raytheon Company Environmentally isolated enclosure for electronic components
DE19901802B4 (de) * 1999-01-19 2004-02-12 Baldwin Germany Gmbh Vorrichtung zur Rückbefeuchtung einer getrockneten Papierbahn
TWI276396B (en) * 2006-01-13 2007-03-11 Ind Tech Res Inst Closed-loop latent heat cooling method, and capillary force or non-nozzle module thereof
CN108526249A (zh) * 2018-04-24 2018-09-14 浙江联品电子科技有限公司 一种加工调频广发射机机箱的矫直机的冷却装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009078A (en) * 1932-02-25 1935-07-23 Smith Corp A O Method of and apparatus for cooling heated articles
US3758913A (en) * 1970-07-29 1973-09-18 Dow Chemical Co Apparatus for removal of coolant from metal surfaces
BE837884A (fr) * 1976-01-23 1976-05-14 Centre Rech Metallurgique Perfectionnements aux dispositifs de refroidissement des profiles metalliques
FR2375911A1 (fr) * 1976-12-31 1978-07-28 Bertin & Cie Dispositif de pulverisation a jet bidimensionnel
JPS5681634A (en) * 1979-12-06 1981-07-03 Nippon Steel Corp Gas-water cooling apparatus for metallic strip
JPS5681633A (en) * 1979-12-06 1981-07-03 Nippon Steel Corp Cooling apparatus for steel hoop
US4367597A (en) * 1979-12-13 1983-01-11 Nippon Steel Corporation Gas-liquid cooling apparatus
FR2507929A1 (fr) * 1981-06-19 1982-12-24 Usinor Procede de refroidissement d'ebauches de toles fortes en defilement, en cours de laminage et machine pour sa mise en oeuvre

Also Published As

Publication number Publication date
FI81121B (fi) 1990-05-31
FI864482A0 (fi) 1986-11-04
FI864482A (fi) 1986-11-04
IN163108B (de) 1988-08-13
AU5516986A (en) 1986-09-24
KR880700087A (ko) 1988-02-15
ATE43644T1 (de) 1989-06-15
EP0215830A1 (de) 1987-04-01
NO864422D0 (no) 1986-11-06
AU582976B2 (en) 1989-04-13
US4711431A (en) 1987-12-08
FR2578553B1 (fr) 1989-01-06
JPS62500182A (ja) 1987-01-22
WO1986005210A1 (fr) 1986-09-12
FR2578553A1 (fr) 1986-09-12
DE3663685D1 (en) 1989-07-06
JPH0445565B2 (de) 1992-07-27
NO864422L (no) 1986-11-06
KR900004651B1 (ko) 1990-07-02
FI81121C (fi) 1990-09-10

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