EP0141036A2 - Dispositif pour la fabrication d'un rideau d'eau laminaire - Google Patents

Dispositif pour la fabrication d'un rideau d'eau laminaire Download PDF

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Publication number
EP0141036A2
EP0141036A2 EP84108053A EP84108053A EP0141036A2 EP 0141036 A2 EP0141036 A2 EP 0141036A2 EP 84108053 A EP84108053 A EP 84108053A EP 84108053 A EP84108053 A EP 84108053A EP 0141036 A2 EP0141036 A2 EP 0141036A2
Authority
EP
European Patent Office
Prior art keywords
water
curtain
side walls
water curtain
nozzle
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.)
Withdrawn
Application number
EP84108053A
Other languages
German (de)
English (en)
Other versions
EP0141036A3 (fr
Inventor
Udo Dr.-Ing. Hadrian
Hans-Dieter Dr.-Ing. Kirschbaum
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0141036A2 publication Critical patent/EP0141036A2/fr
Publication of EP0141036A3 publication Critical patent/EP0141036A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B45/00Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02Devices 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
    • B21B45/0203Cooling
    • B21B45/0209Cooling devices, e.g. using gaseous coolants
    • B21B45/0215Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
    • B21B45/0233Spray nozzles, Nozzle headers; Spray systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05CAPPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/005Curtain coaters

Definitions

  • the invention relates to a device for generating a water curtain for cooling sheets and strips moving through the water curtain, consisting of a water box with a slot nozzle extending transversely to the direction of movement and over the entire width of the refrigerated goods, the side walls of which limit the nozzle gap in free fall cooling water escaping laminar flow.
  • DE-OS 28 04 982 proposes a rectangular slot nozzle, the inlet opening of which has a substantially larger cross-sectional area than the outlet opening and which is additionally sieve-like to increase convergence; contains internals inserted in the nozzle with a plurality of adjacent converging channels.
  • the present invention has set itself the task of eliminating the constrictions that occur in the case of large curtain widths and high drop heights, in order thus to obtain a laminar water curtain.
  • the side walls of the slot nozzle are convexly curved at least in the region of the outlet opening transversely to the direction of flow of the cooling water.
  • This proposed convex curvature compensates for the constriction of the water curtain and thereby leads to the production of a curtain which is essentially rectangular in horizontal cross section. In this way, not only can the critical fall height be increased; the amount of water can also be reduced without causing turbulence in the curtain. This curtain of water creates better, more effective heat dissipation.
  • the side walls of the slot nozzle are flat in the region of the inlet opening and continuously widen downward due to the convex curvature.
  • the slit nozzle designed in this way creates a favorable flow within the nozzle gap due to the continuous course of the side walls and at the same time prevents the water curtain from constricting outside the nozzle.
  • the water tank is referred to, to which the cooling water is supplied via the supply opening 2.
  • the water tank 1 is only half drawn in the drawing in order to better represent the nozzle according to the invention.
  • This nozzle is numbered 3 in total.
  • the nozzle gap 4 is delimited by the side walls 5 and 6 and the end faces 7 and 8.
  • the inlet opening of the nozzle 3, which is denoted by 9, has a rectangular cross section, which continuously widens towards the outlet opening 10 in such a way that the horizontal cross section through the outlet opening 10 is convexly curved. As a result, the constriction of the water curtain is compensated in the manner according to the invention.
  • the inlet opening which is designated here by 11, is convexly curved in cross section.
  • the outlet opening 12 is curved more than the inlet opening 11, but is also convex. Between the inlet opening 11 and 12 are all horizontal cross-sections, convexly increasing towards the outlet.
EP84108053A 1983-09-22 1984-07-10 Dispositif pour la fabrication d'un rideau d'eau laminaire Withdrawn EP0141036A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334251 1983-09-22
DE19833334251 DE3334251C2 (de) 1983-09-22 1983-09-22 Vorrichtung zur Erzeugung eines Wasservorhanges zum Kühlen von Blechen und Bändern

Publications (2)

Publication Number Publication Date
EP0141036A2 true EP0141036A2 (fr) 1985-05-15
EP0141036A3 EP0141036A3 (fr) 1985-09-18

Family

ID=6209762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108053A Withdrawn EP0141036A3 (fr) 1983-09-22 1984-07-10 Dispositif pour la fabrication d'un rideau d'eau laminaire

Country Status (3)

Country Link
EP (1) EP0141036A3 (fr)
JP (1) JPS6087915A (fr)
DE (1) DE3334251C2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235015A1 (fr) * 1986-02-04 1987-09-02 Kawasaki Steel Corporation Dispositif pour refroidir de feuillard
US4974424A (en) * 1986-02-04 1990-12-04 Kawasaki Steel Corp. Method and system for cooling strip
CN107790339A (zh) * 2017-09-14 2018-03-13 首钢京唐钢铁联合有限责任公司 一种镀锌线静电涂油系统、涂油控制方法及装置
EP3659436A1 (fr) 2018-11-30 2020-06-03 Bayer AG Lutte contre les plantes au moyen de l'énergie électrique

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634188A1 (de) * 1986-10-03 1988-04-14 Mannesmann Ag Vorrichtung zum kuehlen von flachem walzgut
ATE75639T1 (de) * 1987-10-22 1992-05-15 Mannesmann Ag Vorrichtung zur erzeugung eines wasservorhangs.
DE102004015741A1 (de) 2004-03-29 2005-10-20 Sms Demag Ag Vorrichtung zum Kühlen von Blechen und Bändern

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2235063B2 (de) * 1971-07-17 1976-05-06 Centro Sperimentale Metallurgico S.P.A., Rom Wasserkuehlvorrichtung fuer warmgewalzte metallbaender
DE2804982A1 (de) * 1977-02-07 1978-08-10 Davy Loewy Ltd Anordnung zum zufuehren eines kohaerenten kuehlfluessigkeits-vorhanges
GB2113131A (en) * 1978-10-02 1983-08-03 Centre Rech Metallurgique Cooling or rolled metal products

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57103728A (en) * 1980-12-18 1982-06-28 Nippon Steel Corp Slit type laminar flow nozzle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2235063B2 (de) * 1971-07-17 1976-05-06 Centro Sperimentale Metallurgico S.P.A., Rom Wasserkuehlvorrichtung fuer warmgewalzte metallbaender
DE2804982A1 (de) * 1977-02-07 1978-08-10 Davy Loewy Ltd Anordnung zum zufuehren eines kohaerenten kuehlfluessigkeits-vorhanges
GB2113131A (en) * 1978-10-02 1983-08-03 Centre Rech Metallurgique Cooling or rolled metal products

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0235015A1 (fr) * 1986-02-04 1987-09-02 Kawasaki Steel Corporation Dispositif pour refroidir de feuillard
US4974424A (en) * 1986-02-04 1990-12-04 Kawasaki Steel Corp. Method and system for cooling strip
CN107790339A (zh) * 2017-09-14 2018-03-13 首钢京唐钢铁联合有限责任公司 一种镀锌线静电涂油系统、涂油控制方法及装置
CN107790339B (zh) * 2017-09-14 2019-10-29 首钢京唐钢铁联合有限责任公司 一种镀锌线静电涂油系统、涂油控制方法及装置
EP3659436A1 (fr) 2018-11-30 2020-06-03 Bayer AG Lutte contre les plantes au moyen de l'énergie électrique

Also Published As

Publication number Publication date
DE3334251C2 (de) 1986-04-10
EP0141036A3 (fr) 1985-09-18
DE3334251A1 (de) 1985-04-11
JPS6087915A (ja) 1985-05-17

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19851009

17Q First examination report despatched

Effective date: 19860912

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870122

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KIRSCHBAUM, HANS-DIETER, DR.-ING.

Inventor name: HADRIAN, UDO, DR.-ING.