EP0141036A2 - Dispositif pour la fabrication d'un rideau d'eau laminaire - Google Patents
Dispositif pour la fabrication d'un rideau d'eau laminaire Download PDFInfo
- 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- Withdrawn
Links
Images
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
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/005—Curtain 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.
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)
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)
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57103728A (en) * | 1980-12-18 | 1982-06-28 | Nippon Steel Corp | Slit type laminar flow nozzle |
-
1983
- 1983-09-22 DE DE19833334251 patent/DE3334251C2/de not_active Expired
-
1984
- 1984-07-10 EP EP84108053A patent/EP0141036A3/fr not_active Withdrawn
- 1984-09-21 JP JP19700184A patent/JPS6087915A/ja active Pending
Patent Citations (3)
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)
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. |