GB446423A - Improved tubular heat exchange elements and method of making the same - Google Patents

Improved tubular heat exchange elements and method of making the same

Info

Publication number
GB446423A
GB446423A GB30989/34A GB3098934A GB446423A GB 446423 A GB446423 A GB 446423A GB 30989/34 A GB30989/34 A GB 30989/34A GB 3098934 A GB3098934 A GB 3098934A GB 446423 A GB446423 A GB 446423A
Authority
GB
United Kingdom
Prior art keywords
tubes
forging
union
welding
carbon steel
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
Application number
GB30989/34A
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.)
Superheater Co Ltd
Superheater Co
Original Assignee
Superheater Co Ltd
Superheater Co
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 Superheater Co Ltd, Superheater Co filed Critical Superheater Co Ltd
Priority to GB30989/34A priority Critical patent/GB446423A/en
Publication of GB446423A publication Critical patent/GB446423A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/283—Making U-pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

446,423. Making steam superheaters. SUPERHEATER CO., Ltd., Bush House, Aldwych, London.-(Superheater Co. ; 60, East 42nd Street, New York, U.S.A.) Oct. 29, 1934, No. 30989. [Classes 83 (ii) and 83 (iv)] Welding. - Tubular heat - exchangers such as steam superheaters consisting of forge welded unions or return bends of carbon steel, &c. welded to tubes of heat resisting alloy, such as low carbon steel containing chromium, nickel, copper or molybdenum or to tubes of carbon steel coated by calorizing, which are not readily forge welded, are made by electric flash or otherwise welding at 3, the alloy &c. tubes 1, either to short lengths of carbon steel &c. tubes 2 or to a preformed breeches forging of this metal, and after removing the internal burrs from the joints 3, completing the union or return bend by forge welding. If separate short tubes are used, the breeches forging is made after welding the joints 3, the internal burrs at which are removed either by a separate tool before forming the forging or by the tools which form the forging ; forging may be effected as described in Specifications 6304/15, [Class 83 (ii)], and 355,414. A return bend can then be made as described in Specification 120,042, [Class 83 (ii)]. The alloy &c. tubes may lie at the same distance apart throughout as in Fig. 1, or may be offset near their ends as shown in Fig. 4. If the union is to be joined to a header or another tube it is forged to cylindrical form, and the forging operation may be repeated to form a long cylindrical union portion as described in Specification 355,415. This union portion may be aligned with the space between the tubes or with the axis of one of the tubes as described in Specification 418,853. Bends or unions may be provided with access openings by applying removable closures to the cylindrical portions as described in Specifications 155,623, [Class 99 (i)], 371,707 and 431,606, [both in Group XXVIII]. A serpentine element may be formed by connecting a number of tubes at opposite ends by return bends. A number of lengths of tube may be united at opposite ends to form at each end a common union for connection to a header or three or more tubes may be united to form a return bend.
GB30989/34A 1934-10-29 1934-10-29 Improved tubular heat exchange elements and method of making the same Expired GB446423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30989/34A GB446423A (en) 1934-10-29 1934-10-29 Improved tubular heat exchange elements and method of making the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30989/34A GB446423A (en) 1934-10-29 1934-10-29 Improved tubular heat exchange elements and method of making the same

Publications (1)

Publication Number Publication Date
GB446423A true GB446423A (en) 1936-04-29

Family

ID=10316238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30989/34A Expired GB446423A (en) 1934-10-29 1934-10-29 Improved tubular heat exchange elements and method of making the same

Country Status (1)

Country Link
GB (1) GB446423A (en)

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