US3294107A - Apparatus for cooling hot bodies - Google Patents

Apparatus for cooling hot bodies Download PDF

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Publication number
US3294107A
US3294107A US34854864A US3294107A US 3294107 A US3294107 A US 3294107A US 34854864 A US34854864 A US 34854864A US 3294107 A US3294107 A US 3294107A
Authority
US
United States
Prior art keywords
pipe
water
plenum chamber
pipes
chamber
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
Other languages
English (en)
Inventor
Joseph A Maruszewski
Carl F Larsen
Ronald L Wiegel
Terence E Dancy
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.)
Jones and Laughlin Steel Corp
Original Assignee
Jones and Laughlin Steel Corp
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 Jones and Laughlin Steel Corp filed Critical Jones and Laughlin Steel Corp
Priority to US34854864 priority Critical patent/US3294107A/en
Priority to GB874465A priority patent/GB1066916A/en
Priority to DE1427912A priority patent/DE1427912C3/de
Priority to NL6502570A priority patent/NL143441B/xx
Priority to LU48106A priority patent/LU48106A1/xx
Priority to FR7541A priority patent/FR1441510A/fr
Priority to BE660520D priority patent/BE660520A/xx
Application granted granted Critical
Publication of US3294107A publication Critical patent/US3294107A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
    • 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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling
    • 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
    • Y10T137/2713—Siphons
    • Y10T137/272—Plural
    • 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
    • Y10T137/86236—Tank with movable or adjustable outlet or overflow pipe

Definitions

  • This invention relates to apparatus for cooling hot bodies. It is more particularly concerned with apparatus for rapidly cooling traveling metal strip. Our apparatus is described hereinafter with reference to the cooling of hot steel strip with water, but it is also suitable for the cooling of other bodies with other cooling liquids.
  • FIGURE 3 is a side elevation of the apparatus of FIG- URE 1.
  • FIGURE 4 is a cross section through a feeder pipe of the apparatus of FIGURE 1 taken on the plane 4-4.
  • FIGURE 5 is a cross section through the plenum chamber of our apparatus taken on the plane 5-5 of FIG- URE 1.
  • FIGURE 6 is a cross section through a portion of the apparatus of FIGURE 5 taken on the plane 6-6.
  • FIGURE 7 is a cross section through another portion of the appaartus of FIGURE 5 taken on the plane 77.
  • FIGURE 8 is another view of a portion of our apparatus, partly in cross section, on the same plane as FIG- URE 5, but showing our adjustable weir in its extreme low position.
  • Apparatus for discharging water onto the top surface of strip 1 is carried by uprights 5-5 which are positioned alongside runout table 2.
  • cross members 66 are connected between uprights 5-5 to form supports for a plenum chamber 8 which is cylindrical in shape, and is positioned with its axis parallel to the long axis of table 2.
  • a plenum chamber 8 which is cylindrical in shape, and is positioned with its axis parallel to the long axis of table 2.
  • a pair of spaced elbows 9-9 project horizontally toward runout table 2 with their outer ends turned to face each other.
  • Each elbow 9 at its outer end connects with a rotary union 10 and between the other ends of the unions 10-10 is positioned a header chamber 11 which is also of cylindrical shape with its axis parallel to the long axis of table 2.
  • Cross members 66 are connected by parallel members 14 and 15 which extend parallel to the runout table 2, and are spaced from each other. On those members is mounted a motor 16 with its drive shaft parallel to runout table 2. Its drive shaft carries a pinion 17. Header 11 is journaled in bearings 12-12, and is fitted with a ring gear 13. A chain 18 is trained around ring gear 13 and pinion 17 so that header 11 can be rotated about its axis by motor 16.
  • Header 11 is provided with a plurality of feeder pipes 20-20 which extend at right angles from its over runout table 2.
  • the outer ends of feeder pipes 20-20 are closed and are connected by an elongated structural member 21 which braces the feeder pipe assembly.
  • the inner ends of feeder pipes 20-20 are likewise connected by a brace 23.
  • Each feeder pipe 20 is provided with a plurality of siphon delivery pipes 22 which are spaced from each other along its length and open flush out of the top surface thereof.
  • the siphon delivery pipes 22-22 are of inverted U-shape, and are of substantially smaller diameter than feeder pipes 20-20.
  • Each elbow 9 is provided with a valve 24 positioned between plenum chamber 8 and rotary union 10.
  • Each valve 24 is provided with motor driving mechanism 25.
  • Plenum chamber 8 is provided with filler pipes 26-26 which are connected through main 39 to a source of cooling water under pressure, not shown.
  • Plenum chamber 8 is also provided with overflow pipes 27-27 which empty into an open trench or drain 48..
  • Each pipe 27 is fitted with a valve 28 positioned below plenum chamber 8.
  • Each valve 28 is provided with a motor operating mechanism 29.
  • the overflow pipes 2727 are of the same diameter as the inlet pipes 26-26.
  • Overflow pipe 27 opens out of the lower wall of plenum chamber 8 and does not extend inside that cham'ber.
  • Overflow pipe 27 is fitted with an adjustable weir assembly, designated generally by reference character 30.
  • This weir mechanism comprises an open ended cylindrical section 31 which telescopes within pipe 27 and extends into plenum chamber 8 a distance which can be adjusted from ouside of that chamber. Cylindrical section 31 is fitted near its upper end with a spider 32 having a threaded hub 33. A threaded screw 34 passes through threaded hub 33 and extends outwardly through the upper wall of plenum chamber 8 by way of a fitting, designated generally by reference character 35.
  • Fitting 35 has a removable cover plate 36 and an external sleeve 37 through which an unthreaded portion of screw 34 extends, terminating in a squared end 38. Between diametrically opposite wall portions of fitting 35 and the inner end of overflow pipe 27 extend a pair of parallel channels 4040. Spider 32 is provided with a pair of diametrically projecting keys 41-41 which fit in channels 4040 and prevent spider 32 from rotating but allow it to move axially of screw 34 when that screw is turned.
  • Screw 34 is provided with a pair of lock nuts 43 near its upper end to limit the upward movement of weir section 31, and at its lower end with a similar pair of lock nuts 44 to limit the downward movement of that section.
  • a collar 45 which bears against the underside of cover plate 36 and prevents screw 34 from being pulled out of fitting 35
  • a removable collar 46 which holds the screw in place in external sleeve 37.
  • a set screw 47 in external sleeve 37 is used to lock screw 34 in any desired position.
  • Header chamber 11 is larger in diameter than feeder pipes 2020 and header 11 and the siphon delivery tubes 2222 are dimensioned and positioned relative to each other so that the upper wall of header chamber 11 is elevated above the top of the U-bend of each siphon tube 22. It is always possible, therefore, to maintain a water level in header chamber 11 suflicient to fill siphon delivery tubes 2222 by gravity flow.
  • Plenum chamber 8 is of larger diameter than header chamber 11 and those chambers are positioned so that the upper wall of chamber 8 is elevated above the upper wall of header 11. It is always possible, therefore, to fill header 11 from plenum chamber 8 by gravity flow.
  • Plenum chamber 8 is filled by water under pressure in main 39 which rises through inlet pipes 2626.
  • the water level in plenum chamber 8 is determined by the setting of adjustable weir assembly 30. That adjustment is made by applying a wrench to the squared end 38 of screw 34 and rotating the screw in one direction or the other. Rotation of screw 34 causes weir section 31 to telescope into or emerge from pipe 27.
  • Assembly 30 is set to maintain a water level above the tops of the U- bends of siphon delivery tubes 2222. Under those conditions, water will flow from siphon delivery tubes 2222 as long as valves 2424 are open.
  • the siphon delivery tubes 2222 When those valves are closed, the siphon delivery tubes 2222 will deliver water only as long as feeder pipes 2020 remain full of water. As soon as the water level in those feeder pipes falls below the siphon tube inlets, which are flush with the inner surface of the upper wall of feeder pipes 2020, the siphon tubes cease delivering water. Our apparatus, therefore, provides for rapid cutoff of the cooling water streams.
  • valves 28-28 when we close valves 2424 to avoid waste of water which otherwise would occur through pipes 2727 to drain 48.
  • valves 28-28 are closed, the weir assemblies 3030 no longer limit the water level in plenum chamber 8, and the continued inflow of water through inlet pipes 26-26 fills chamber 8 to the level permitted by the air trapped therein. This compressed air assists in providing rapid start-up of cooling water flow when cooling is desired, as will be shown.
  • valves 2424 Rapid initiation of cooling water flow is obtained by opening valves 2424.
  • the air compressed in plenum chamber 8 assists the pressure of water from inlet pipes 26-26 in forcing the water out through feeder pipes 20-20 and siphon delivery tubes 2222.
  • valves 2424 we open valves 28--28 so that the delivery pressure of the water thereafter will be determined by the setting of weir assemblies 30--30' as we have described.
  • overflow pipes 2727 are the same size as inlet pipes 26-26.
  • most of the water entering plenum chamber 8 flows out into header 11 and from there onto the strip to be cooled, A minor amount of the water flows over the weir assemblies 3030' and down the overflow pipes 2727 so that those pipes are not full of water.
  • plenum chamber 8 is normally vented to the atmosphere through overflow pipes 2727.
  • Apparatus for supplying liquid comprising a closed plenum chamber having an inlet pipe, a discharge opening and an overflow pipe provided with adjustable weir means adapted to vary the head of liquid above the discharge opening, a feeder pipe connected to the discharge opening and a siphon delivery pipe connected to the feeder pipe.
  • Apparatus of claim 1 having a valve positioned to control the flow of liquid to the feeder pipe and a valve in the overflow pipe downstream of the adjustable weir means.
  • the adjustable weir means comprise a length of pipe adapted to telescope within the overflow pipe extending above the overflow pipe within the plenum chamber, a nut fastened to the length of pipe and a screw threaded through the nut and extending through the Wall of the plenum chamber opposite the overflow pipe adapted to be turned from outside the, plenum chamber.
  • Apparatus for supplying liquid comprising a source of liquid under pressure, a closed header chamber connected thereto through a valve, a closed feeder pipe connected to the headed chamber, and at least one siphon delivery pipe connected to the feeder pipe, the inlet end of each said siphon delivery pipe opening out of the uppermost wall of the feeder pipe and being substantially flush with the inside surface thereof.
  • Apparatus for supplying liquid comprising a closed plenum chamber having an inlet pipe, at discharge pipe, and an overflow pipe provided with adjustable weir means adapted to vary the head of liquid above the discharge pipe, a closed header chamber connected to the discharge pipe, and positioned so as to be maintained full of liquid by gravity flow from the plenum chamber, a closed feeder pipe connected to the header chamber and a siphon delivery pipe connected to the feeded pipe, the inlet end of the siphon delivery pipe Opening out of the uppermost wall of the feeder pipe, the top of the siphon being positioned so that the siphon is caused to operate by flow of liquid from the header chamber.
  • header chamber is an elongated pipe rotatably connected at one end to the discharge pipe, and including means for rotating the header pipe about its axis so as to elevate the siphon delivery pipes above the level of the weir means.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Pipeline Systems (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Dairy Products (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
US34854864 1964-03-02 1964-03-02 Apparatus for cooling hot bodies Expired - Lifetime US3294107A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US34854864 US3294107A (en) 1964-03-02 1964-03-02 Apparatus for cooling hot bodies
GB874465A GB1066916A (en) 1964-03-02 1965-03-01 Improvements in or relating to the cooling of hot bodies
DE1427912A DE1427912C3 (de) 1964-03-02 1965-03-01 Einrichtung zum Aufbringen von Kühlflüssigkeit auf ein erhitztes Metallband in einer Walzanlage
NL6502570A NL143441B (nl) 1964-03-02 1965-03-01 Inrichting voor het koelen van warme metaalband.
LU48106A LU48106A1 (fr) 1964-03-02 1965-03-02
FR7541A FR1441510A (fr) 1964-03-02 1965-03-02 Installation pour refroidir des corps chauds
BE660520D BE660520A (fr) 1964-03-02 1965-03-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34854864 US3294107A (en) 1964-03-02 1964-03-02 Apparatus for cooling hot bodies

Publications (1)

Publication Number Publication Date
US3294107A true US3294107A (en) 1966-12-27

Family

ID=23368502

Family Applications (1)

Application Number Title Priority Date Filing Date
US34854864 Expired - Lifetime US3294107A (en) 1964-03-02 1964-03-02 Apparatus for cooling hot bodies

Country Status (7)

Country Link
US (1) US3294107A (fr)
BE (1) BE660520A (fr)
DE (1) DE1427912C3 (fr)
FR (1) FR1441510A (fr)
GB (1) GB1066916A (fr)
LU (1) LU48106A1 (fr)
NL (1) NL143441B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811305A (en) * 1972-10-10 1974-05-21 Bethlehem Steel Corp Movable descaler spray header
US6178768B1 (en) * 1997-12-18 2001-01-30 Voest-Alpine Indstrienlagenbau Gmbh Cooling device for cooling a hot, moving metal strip

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3262960D1 (en) * 1981-06-11 1985-05-15 Wavin Bv Method and device for cooling moulds
US4425928A (en) * 1981-10-19 1984-01-17 Wean United, Inc. Liquid discharge apparatus
DE3428462A1 (de) * 1984-08-02 1986-02-13 W M S - B. Brams Gmbh, 4100 Duisburg Verfahren und vorrichtung zum kuehlen von bandfoermigem gut mittels wasservorhang

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US853705A (en) * 1905-08-28 1907-05-14 Columbus Brass Company Flush-tank.
US988826A (en) * 1910-10-20 1911-04-04 James Scott Automatic flushing apparatus for sewage systems.
US1965322A (en) * 1932-05-05 1934-07-03 Chicago Faucet Company Valve
US2536921A (en) * 1948-08-27 1951-01-02 Harry A Duke Valve assembly
US2625175A (en) * 1949-05-31 1953-01-13 Maloney Crawford Tank & Mfg Co Siphon box
US3025865A (en) * 1956-09-05 1962-03-20 United Steel Companies Ltd Apparatus for cooling hot metal strip or plate by laminar liquid flow

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US853705A (en) * 1905-08-28 1907-05-14 Columbus Brass Company Flush-tank.
US988826A (en) * 1910-10-20 1911-04-04 James Scott Automatic flushing apparatus for sewage systems.
US1965322A (en) * 1932-05-05 1934-07-03 Chicago Faucet Company Valve
US2536921A (en) * 1948-08-27 1951-01-02 Harry A Duke Valve assembly
US2625175A (en) * 1949-05-31 1953-01-13 Maloney Crawford Tank & Mfg Co Siphon box
US3025865A (en) * 1956-09-05 1962-03-20 United Steel Companies Ltd Apparatus for cooling hot metal strip or plate by laminar liquid flow

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811305A (en) * 1972-10-10 1974-05-21 Bethlehem Steel Corp Movable descaler spray header
US6178768B1 (en) * 1997-12-18 2001-01-30 Voest-Alpine Indstrienlagenbau Gmbh Cooling device for cooling a hot, moving metal strip

Also Published As

Publication number Publication date
GB1066916A (en) 1967-04-26
FR1441510A (fr) 1966-06-10
DE1427912B2 (de) 1974-10-31
DE1427912A1 (de) 1968-12-05
DE1427912C3 (de) 1975-06-12
BE660520A (fr) 1965-09-02
NL143441B (nl) 1974-10-15
LU48106A1 (fr) 1966-09-02
NL6502570A (fr) 1965-09-03

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