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Publication numberUS3407099 A
Publication typeGrant
Publication dateOct 22, 1968
Filing dateOct 22, 1965
Priority dateOct 22, 1965
Publication numberUS 3407099 A, US 3407099A, US-A-3407099, US3407099 A, US3407099A
InventorsRobert C Schell
Original AssigneeUnited States Steel Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method and apparatus for spraying liquids on the surface of cylindrical articles
US 3407099 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Oct. 22, 1968 R. c. Scl-ELL 3,407,099

METHOD AND APPARATUS FOR SPRAYING LIOUIDS ON THE SURFACE OF CYLINDRICAL ARTICLES Filed oct. 22, 1965 [NVE/V705 08E/PT C. SCHELL Aflorney United States Patent O METHOD AND APPARATUS FOR SPRAYING LIQUIDS ON THE SURFACE OF CYLINDRI- 4CAL ARTICLES Robert C. Schell, Penn Hills Township, Allegheny County,

Pa., assignor to United States Steel Corporation, a corporation of New Jersey Filed Oct. 22, 1965, Ser. No. 501,347 7 Claims. (Cl. 148-153) ABSTRACT F THE DISCLOSURE An improvement over a known method and apparatus for spraying liquid on pipes. In the previous arrangement pipe traveled through spray nozzles supported on manifolds surrounding the pipe. Nozzles were directed radially of the pipe. Improvement consists in offsetting the nozzles so that they are aimed tangentially of an imaginary circle within the pipe. Purpose is to prevent sprays from entering leading end of pipe.

This invention relates to an improved method and apparatus for spraying liquids on the surface of cylindrical articles, for example, quenching steel pipes during their manufacture.

As applied to pipe-quenching, my invention is an improvement over the method and apparatus shown in Scott Patent No. 2,776,230. The Scott patent shows a quenching apparatus which includes a series of manifold rings and a plurality of spray nozzles projecting inwardly from each ring. The apparatus is located where each pipe, as it leaves a heat-treating furnace, travels lengthwise through the rings with its central longitudinal axis lying approximately along the central axis of the rings. Each nozzle projects at an acute angle of about 30 from the plane of its ring toward the direction of pipe travel. This arrangement is intended to prevent water from the sprays from backing up into the furnace, or contacting a pipe prematurely, but there is still a problem that water gets into the ends of pipes and causes defects which may necessitate excessive cropping or even scrapping whole pipes. Nevertheless it is apparent my invention may have other applications, such as in coating pipes or other cylindrical articles.

An object of my invention is to provide an improved method and apparatus for spraying liquids on the surface of cylindrical articles as they travel in the direction of their longitudinal a xis and efficiently covering the surface, but eliminating any backward component from the sprays.

A further object is to provide an improved pipe-quenching method and apparatus of the type shown in the Scott patent, but which effectively prevents water from entering the leading ends of pipes.

A more specific object is to provide an improved pipequenching method and apparatus in which I aim the nozzles in directions such that their sprays have no backward component to enter the leading ends of pipes, that is, I aim the nozzles in direction that the center lines of their sprays are tangential to an imaginary circle concentric with the ring axis.

In the drawing:

FIGURE 1 is a top plan view, partly in section, of a pipe-quenching apparatus which embodies my invention; and

FIGURE 2 is a vertical section on a larger scale on line II-II of FIGURE l, omitting background structure.

As typical environmental structure for my invention, FIGURE 1 shows a portion of a conventional heat-treating furnace 10 for steel pipes P, and a quenching appa- ICS ratus 12. The latter includes a pair of tubular headers 13, a series of axially aligned spaced parallel manifold rings 14 communicating with the headers, and nozzles 15 connected to the inner circumferences of the rings. A water line 16 supplies water lto the headers via branches 17. Heated pipes P leave the furnace through an opening 18 and travel lengthwise through the rings with their central longitudinal axes lying as nearly as possible along: the central axis of the rings. Preferably theapparatusv includes conventional means (not shown)` for rotating the pipes on their longitudinal axes to compensate for any inaccuracies in centering. Initially the pipes are at a temperature above their transformation temperature, but the nozzles emit water sprays S, preferably inthe shape o f solid cones, against the outside surface of the pipes to quench them below this temperature. The nozzles project at acute angles from the planes of their respective rings in the direction of pipe travel to prevent water from backing up, as already explained. The foregoing method and apparatus are similar to the showing of the Scott patent, and hence I have not shown and described them in greater detail.

The Scott patent shows nozzles aimed directly at the central axis of the rings. The center line of each conical spray is radial of and intersects this axis. After the trailing end of each pipe P leaves the furnace, there is an interval before the leading end of the next pipe appears. The sprays of course operate continuously. During intervals while there is no pipe within the sprays, most of the water travels away from the furnace, but the sprays have a small backward component. Some water travels toward the furnace and may enter the leading end of the next pipe where it is detrimental. Once the pipe is fully within the sprays, no more water travels backward.

In accordance with my invention, I aim the nozzles 15 slightly away from central axis of the rings 14, as FIG- URE 2 shows. I aim the nozzles in directions that the center lines of their sprays S are tangential to a small imaginary circle 19 which is concentric with the ring axis and of smaller radius than the pipe P or other article. The center lines of the sprays meet the radii of the rings or the extended radii of the articles at angles of about 3 to 8, or preferably about 4. FIGURE 2 shows the pattern which the sprays form. These sprays have no backward components, whereby no liquid enters the leading ends of the pipe. I aim the nozzles so that the sprays oppose rotation of the articles; that is, if the articles rotate clockwise, as FIGURE 2 shows, I aim the nozzles at the top toward the left of the central axis. In this manner the sprays exert a greater scrubbing action on the surface of the article, whereby their efficiency is increased. I also nd I can attain the benefits of the invention by constructing the nozzles of only the rst two or three rings of the series the way FIGURE l2 shows. The nozzles of subsequent rings can be aimed directly at the axis of the rings without detrimental effect.

The Scott patent shows the nozzles projecting at acute angles of about 30 from the planes of the rings. By aiming the nozzles away from the central axis, I find I can lower this angle to about 15 to 25 or preferably 20 without causing liquid to back up along the article surface. The smaller angle enables the sprays to meet the article more directly and further increases the efficiency of the operation.

While I have shown and described only a single embodiment of my invention, it is apparent that modifications may arise. Therefore, I do not wish to be limited to the disclosure set forth but only by the scope of the appended claims.

I claim:

1. In an operation in which liquid is sprayed on the outside surface of elongated hollow cylindrical articles as a'succession of the articles travels lengthwise in the direction of their central longitudinal axes, but the liquid desirably is excluded from inside the articles, there being an interval after the trailing end of each article passes the sprays before the leading end of the next article arrives, in which operation the sprays emanate from points surrounding the article in a series of spaced parallel planes and are directed at acute angles from their planes toward the direction in which the articles travel, an improved method of preventing liquid from the sprays from entering the leading ends of the articles, said method comprising aiming the sprays in directions such that their center lines are tangential to imaginary circles concentric with the central longitudinal axis of the articles and of smaller radii than the articles, thereby eliminating a backward component from the sprays during said interval.

2. A method as defined in claim 1 in which the center lines of the sprays meet the extended radii of the article at angles of about 3 to 8.

3. A method as defined in claim 2 in which the angles between the center lines of the sprays and said lplanes are about 15 to 25.

4. A method as defined in claim 2 in which the articles rotate on their longitudinal central axes and the sprays oppose such rotation.

5. A method as defined in claim 2 in which the articles are steel pipes leaving a heat-treating furnace at a temperature above their transformation temperature and the liquid is water which quenches the pipes.

6. A method of quenching steel pipe heated above the transformation temperature, in which methcdvliquid is sprayed on the outside surface of pipes as they travel lengthwise in the direction of their central longitudinal axes, there being an interval after the trailing end of each pipe passes before the leading end of the next pipe arrives, and in which method the sprays emanate from points surrounding the pipe in a series of spaced parallel planes and are directed at acute angles of about 15 to 25 from their planes toward the direction of pipe travel, the improvement comprising a method of eliminating a backward component from said sprays during said interval by directing the sprays such that the center lines of the sprays are tangential to imaginary circles concentric with the central longitudinal axis of the pipe and of smaller radii References Cited UNITED STATES PATENTS 2,614,316 10/1952 Daily et al. 134-138 X 2,776,230 1/1957 Scott 148-156 X 3,140,964 7/1964 Middlemiss 148-153 3,155,545 11/1964 Rocks et al. 118-621 3,189,490 6/1965 Scott 148-153 CHARLES N. LOVELL, Primary Examiner.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2614316 *Mar 16, 1949Oct 21, 1952Edward H DailyAutomatic rotating descaler for wheel blocks or the like
US2776230 *Oct 22, 1951Jan 1, 1957United States Steel CorpMethod and apparatus for quenching pipe
US3140964 *Nov 21, 1962Jul 14, 1964United States Steel CorpMethod of quenching pipe
US3155545 *Feb 27, 1961Nov 3, 1964Rheem Mfg CoApparatus for external coating of objects
US3189490 *Nov 5, 1962Jun 15, 1965United States Steel CorpMethod and apparatus for quenching pipe
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3507712 *Sep 8, 1967Apr 21, 1970United States Steel CorpMethod and apparatus for quenching pipe
US3515601 *May 15, 1967Jun 2, 1970Caterpillar Tractor CoSpray closet quench
US3630777 *Apr 15, 1969Dec 28, 1971Kanegafuchi Spinning Co LtdAn improved method of cleaning equipment for supplying liquid
US3755010 *Sep 8, 1971Aug 28, 1973Ajax Magnethermic CorpTandem scan hardening of pipe
US3791842 *Mar 31, 1971Feb 12, 1974Midwestern Specialties LtdProcess of applying powder to a rotating object
US3921964 *Jun 21, 1974Nov 25, 1975Maneely IllinoisWater quench apparatus for coated tubing and the like
US3933519 *Apr 25, 1974Jan 20, 1976Hydrotech International, Inc.Sub-sea pipe cleaning apparatus and method
US3979231 *Feb 3, 1975Sep 7, 1976Nippon Steel CorporationMethod for producing large diameter steel pipes
US4134711 *Nov 26, 1976Jan 16, 1979Engineers Sales-Service Co., Inc.Submersible pump apparatus
US4160457 *Oct 31, 1977Jul 10, 1979Shell Oil CompanyTool joint cleaner
US4160543 *Nov 25, 1977Jul 10, 1979Hughes Tool CompanyHeat treatment of welds
US4165246 *Apr 26, 1977Aug 21, 1979Aeg-Elotherm, G.M.B.H.Process for the heat treatment of thick walled steel pipes
US4444556 *May 12, 1982Apr 24, 1984Asea AktiebolagCooling apparatus
US4488852 *Dec 8, 1980Dec 18, 1984Engineers Sales-Service Co., Inc.Submersible pump apparatus
US4490187 *Aug 2, 1983Dec 25, 1984Kruppert Enterprises, Inc.Method for heat treating steel
US4509995 *Jan 19, 1983Apr 9, 1985Hitachi, Ltd.Method and apparatus for quenching
US4515645 *Sep 9, 1983May 7, 1985Messer Griesheim GmbhProcedure for bright annealing of metallic work pieces using nitrogen as protective gas
US4666531 *Dec 18, 1984May 19, 1987Minard Gary ADevice and method for cleaning fin-type heat exchangers in air ducts
US4828625 *Mar 9, 1987May 9, 1989Nalco Chemical CompanyApparatus and method for removal of sludge from tanks
US4877645 *Feb 26, 1988Oct 31, 1989American Telephone & Telegraph At&T Technologies, Inc.Methods of and apparatus for applying a coating material to elongated material
US5024864 *Oct 30, 1989Jun 18, 1991At&T Bell LaboratoriesMethods of and apparatus for making an insulated transmission medium
US5052423 *May 23, 1988Oct 1, 1991Cups, Inc.Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5074323 *Feb 28, 1990Dec 24, 1991Cups, Inc.Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5092357 *Oct 3, 1990Mar 3, 1992Cups, Inc.Cleaning of the exterior surface of a pipeline to remove coatings
US5178171 *Nov 8, 1991Jan 12, 1993Crc-Evans Rehabilitation Systems, Inc.Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5209245 *Nov 8, 1991May 11, 1993Crc-Evans Rehabilitation Systems, Inc.Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5226973 *Nov 8, 1991Jul 13, 1993Crc-Evans Rehabilitation Systems, Inc.Hydrocleaning of the exterior surface of a pipeline to remove coatings
US5265634 *Dec 2, 1991Nov 30, 1993Crc-Evans Rehabilitation Systems, Inc.Cleaning of the exterior surface of a pipeline to remove coatings
US5361791 *Oct 15, 1993Nov 8, 1994Crc-Evans Rehabilitation Systems, Inc.Cleaning of the exterior surface of a pipeline to remove coatings
US5364661 *Mar 4, 1993Nov 15, 1994Allied Tube & Conduit CorporationMethod and apparatus for galvanizing linear materials
US5458683 *Aug 6, 1993Oct 17, 1995Crc-Evans Rehabilitation Systems, Inc.Device for surface cleaning, surface preparation and coating applications
US5496588 *Nov 14, 1994Mar 5, 1996Allied Tube & Conduit Corp.Method and apparatus for galvanizing linear materials
US5520734 *Aug 11, 1994May 28, 1996Crc-Evans Rehabilitation Systems, Inc.High pressure water jet cleaner and coating applicator
US5538556 *Mar 28, 1995Jul 23, 1996Allied Tube & Conduit CorporationApparatus for galvanizing linear materials
US5585143 *Jul 19, 1994Dec 17, 1996Nordson CorporationApparatus and methods for applying solvent-free liquified coatings in a reclaim space
US5653819 *Jul 29, 1996Aug 5, 1997Robert BeeMethod for cleaning threaded portions of tubular members
US5855674 *Feb 29, 1996Jan 5, 1999Allied Tube & Conduit CorporationMethod and apparatus for galvanizing linear materials
US5857476 *May 12, 1997Jan 12, 1999Bee; RobertSystem for cleaning threaded and unthreaded portions of tubular members
US6217670Mar 18, 1999Apr 17, 2001Cf Gomma Usa, Inc.Method of manufacturing coated fluid tubing
US6461231Oct 21, 1994Oct 8, 2002Crc-Evans Rehabilitation Systems, Inc.Air abrasive blast line travel machine
US20050281953 *Jun 21, 2004Dec 22, 2005Carroll Kevin RCoating apparatus and method
US20110220151 *Sep 15, 2011Swinford Jerry LMethod and Apparatus for Washing Downhole Tubulars and Equipment
US20140007994 *Mar 13, 2012Jan 9, 2014Nippon Steel & Sumitomo Metal CorporationQuenching method for steel pipe
DE102009039654A1 *Sep 2, 2009Mar 3, 2011ITT Mfg. Enterprises, Inc., WilmingtonUV-Desinfektionseinrichtung mit berührungsloser Reinigung
DE102009039654A8 *Sep 2, 2009Jun 1, 2011ITT Mfg. Enterprises, Inc., WilmingtonUV-Desinfektionseinrichtung mit berührungsloser Reinigung
WO2000038850A1 *Dec 30, 1999Jul 6, 2000Cf Gomma Usa, Inc.Method of manufacturing coated fluid tubing
Classifications
U.S. Classification148/590, 266/259, 134/33, 134/22.11, 134/32, 427/424, 134/199, 266/121, 266/113
International ClassificationC21D1/62, C21D9/08, C21D1/667
Cooperative ClassificationB05B1/207, C21D9/085, C21D1/667, B05B13/0235, B05B13/0207
European ClassificationC21D9/08K, C21D1/667, B05B13/02B2, B05B13/02A