EP0078199A2 - Vorrichtung zur Austeilung von Flüssigkeiten - Google Patents

Vorrichtung zur Austeilung von Flüssigkeiten Download PDF

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Publication number
EP0078199A2
EP0078199A2 EP82401912A EP82401912A EP0078199A2 EP 0078199 A2 EP0078199 A2 EP 0078199A2 EP 82401912 A EP82401912 A EP 82401912A EP 82401912 A EP82401912 A EP 82401912A EP 0078199 A2 EP0078199 A2 EP 0078199A2
Authority
EP
European Patent Office
Prior art keywords
overflow
flow
distribution
ramps
fact
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.)
Granted
Application number
EP82401912A
Other languages
English (en)
French (fr)
Other versions
EP0078199B1 (de
EP0078199A3 (en
Inventor
Joseph Irwin Greenberger
Frederick Charles Kohring
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.)
Wean United Inc
Original Assignee
Wean United Inc
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 Wean United Inc filed Critical Wean United Inc
Publication of EP0078199A2 publication Critical patent/EP0078199A2/de
Publication of EP0078199A3 publication Critical patent/EP0078199A3/fr
Application granted granted Critical
Publication of EP0078199B1 publication Critical patent/EP0078199B1/de
Expired legal-status Critical Current

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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
    • 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
    • B05B1/36—Outlets for discharging by overflow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86381—Head-establishing standpipe or expansion chamber [e.g., surge tanks]

Definitions

  • the present invention relates to a liquid distribution device intended to improve the adjustment of the feed rate of a distribution ramp used to pour a treatment liquid onto an object.
  • the invention is susceptible of numerous applications, but to expose it it will be presented here in the particular case of the cooling of a metal strip during its hot rolling or immediately after rolling.
  • the object of the present invention is therefore to provide an improved device for dispensing liquid which ensures the required volumetric flow rate with the flexibility and reliability necessary, but without requiring flow variation equipment; instead, it uses a system making it possible to obtain either a full flow, or more or less weak fractions of this full flow, all under the dependence of an all or nothing control system.
  • the invention therefore relates to a liquid distribution device, comprising at least one distribution ramp and flow control means for adjusting the volumetric flow rate of the ramp.
  • these flow control means comprise at least two fixed overflow pipes determined to each generate different hydraulic pressures, the first corresponding to the maximum of the flow capacity of the boom, each other corresponding to a different fraction of this maximum capacity; the dispensing apparatus includes means for selectively activating the overflow pipes.
  • the pressure generated by the second overflow piping corresponds to half the flow capacity of the boom.
  • Figures 1 and 2 show a strip cooling device on the output table of a hot strip mill not shown.
  • Several of the horizontal rollers 10 of the output table are shown in phantom.
  • the exit zone comprises a relatively large number of these cooling devices which are in the form of several horizontal rows of ramps.
  • One of the important characteristics of the present invention which will be detailed lies in the advantage of being able to operate one or more of the rows at 100% of their maximum cooling capacity and the other rows at 50% of their maximum cooling capacity. , thus reducing by 50% the temperature variation of the strip at the inlet of the winder not shown.
  • FIG. 1 shows a certain number of upper ramps 12 for cooling the strip, of a common type of construction and designed to distribute over the upper surface of the strip the necessary quantity (GPM) of coolant, quantity dependent on the rolling mill.
  • This type of ramp is determined so as to project a curtain of water of constant section from a certain height above the strip.
  • a similar system of ramps which will be discussed later is provided for projecting water onto the lower surface of the strip.
  • FIG. 1 only represents upper ramps 12, it can be seen in FIG. 2 that the system comprises an equal number of lower cooling ramps, the inlet pipes of which are marked 14 while the inlet pipes of the upper ramps are marked 16.
  • the ramps are connected to the feed distributors 18 and 20, both shown in FIGS. 1 and 2.
  • the feed distributor 18, which relates to the upper ramps 12, is connected, on the left side of the Figures 1 and 2, to a supply pipe not shown, and on the right side of the figures to an elbow 22 through which the water is supplied to two fixed overflow pipes.
  • the second fixed overflow pipe 34 is mounted to the left of the pipe 24, and a two-way solenoid valve 36 is mounted on a pipe 38 which connects the two overflow pipes 24 and 34.
  • the structure of the pipe overflow 34 is on the whole similar to that of the piping 24, with a central element 40 into which the water penetrates and can rise to form a column of water of predetermined height and fixed at half of that formed in the overflow pipe 24; it is thus possible to quickly and precisely choose the water flow rate to be supplied to the ramps 12, either 100% or 50% of the maximum capacity of the system.
  • the ramps 12 being directly connected to the same feed distributor 18 as the overflow pipes 24 and 34, the hydraulic pressures generated in the two overflow pipes determine the volume of water brought to the ramps and distributed by them. this.
  • the solenoid valve 36 is determined so that, when it is closed, the water cannot pass through the pipe 34; when it is open, the water passes through this pipe 34 so that the water which would pass through the pipe 24 is maintained at the same pressure generated by the water column of the pipe 34.
  • FIG. 2 represents a part of the electrical equipment 42 for controlling the solenoid valve 36.
  • the discharge pipe 44 of the overflow pipe 34 is emptied into the discharge pipe of the overflow pipe 24 .
  • the present invention can be implemented in the form of a ramp with two overflow pipes, which can be installed between the stands of the rolling mill, where one can plan to use one or more ramps. It will also be noted that the system which has been described above by way of example with two overflow pipes generally provides the desired adjustment precision for all known applications on hot strip trains. If you wanted to obtain an even more precise adjustment, you could use additional overflow pipes ensuring finer degrees of adjustment.
  • FIGS. 3 and 4 illustrate a second embodiment of the invention.
  • the represented part of the overflow pipe 54 comprises a cylindrical central part marked generally by 56 and the upper part of which is open to allow the water to overflow between the internal wall of the pipe 54 and the external wall of the part 56 , with return to a drain pipe not shown.
  • the lower part of the part 56 comprises a fixed element 58 which rotatably supports the upper element 60.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Control Of Metal Rolling (AREA)
  • Nozzles (AREA)
EP82401912A 1981-10-19 1982-10-19 Vorrichtung zur Austeilung von Flüssigkeiten Expired EP0078199B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/312,562 US4425928A (en) 1981-10-19 1981-10-19 Liquid discharge apparatus
US312562 1981-10-19

Publications (3)

Publication Number Publication Date
EP0078199A2 true EP0078199A2 (de) 1983-05-04
EP0078199A3 EP0078199A3 (en) 1984-01-11
EP0078199B1 EP0078199B1 (de) 1987-01-21

Family

ID=23212037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401912A Expired EP0078199B1 (de) 1981-10-19 1982-10-19 Vorrichtung zur Austeilung von Flüssigkeiten

Country Status (5)

Country Link
US (1) US4425928A (de)
EP (1) EP0078199B1 (de)
CA (1) CA1189325A (de)
DE (1) DE3275164D1 (de)
GB (1) GB2108028B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0822984B1 (pt) * 2008-07-29 2017-12-26 Primetals Technologies France SAS Process and cooling adjustment device necessary for strengthened cooling of a steel strap

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625175A (en) * 1949-05-31 1953-01-13 Maloney Crawford Tank & Mfg Co Siphon box
GB968615A (en) * 1960-12-09 1964-09-02 Philippe Giesler Improvements in plant for the oiling of wool, cloth or the like
FR1441510A (fr) * 1964-03-02 1966-06-10 Jones & Laughlin Steel Corp Installation pour refroidir des corps chauds

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625175A (en) * 1949-05-31 1953-01-13 Maloney Crawford Tank & Mfg Co Siphon box
GB968615A (en) * 1960-12-09 1964-09-02 Philippe Giesler Improvements in plant for the oiling of wool, cloth or the like
FR1441510A (fr) * 1964-03-02 1966-06-10 Jones & Laughlin Steel Corp Installation pour refroidir des corps chauds

Also Published As

Publication number Publication date
GB2108028A (en) 1983-05-11
DE3275164D1 (en) 1987-02-26
EP0078199B1 (de) 1987-01-21
CA1189325A (en) 1985-06-25
GB2108028B (en) 1985-08-14
EP0078199A3 (en) 1984-01-11
US4425928A (en) 1984-01-17

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