GB894883A - An improved method of manufacturing heat exchanger tubes and improvements in or relating to heat exchanger tubes and to heat exchangers - Google Patents

An improved method of manufacturing heat exchanger tubes and improvements in or relating to heat exchanger tubes and to heat exchangers

Info

Publication number
GB894883A
GB894883A GB790/60A GB79060A GB894883A GB 894883 A GB894883 A GB 894883A GB 790/60 A GB790/60 A GB 790/60A GB 79060 A GB79060 A GB 79060A GB 894883 A GB894883 A GB 894883A
Authority
GB
United Kingdom
Prior art keywords
tube
section
sections
tubes
heat exchanger
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
GB790/60A
Inventor
William Robert Wootton
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.)
Babcock International Ltd
Original Assignee
Babcock and Wilcox Ltd
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 Babcock and Wilcox Ltd filed Critical Babcock and Wilcox Ltd
Priority to GB790/60A priority Critical patent/GB894883A/en
Publication of GB894883A publication Critical patent/GB894883A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/06—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium
    • F22B1/063—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium for metal cooled nuclear reactors
    • F22B1/066—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being molten; Use of molten metal, e.g. zinc, as heat transfer medium for metal cooled nuclear reactors with double-wall tubes having a third fluid between these walls, e.g. helium for leak detection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1823—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines for gas-cooled nuclear reactors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10—Water tubes; Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/003—Multiple wall conduits, e.g. for leak detection
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/002—Detection of leaks
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/02—Devices or arrangements for monitoring coolant or moderator
    • G21C17/04—Detecting burst slugs
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Plasma & Fusion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

894,883. Making composite tubes. BABCOCK & WILCOX Ltd. Jan. 2, 1961 [Jan. 8, 1960], No. 790/60. Class 83 (2). A method of making a long heat-exchanger tube 21 which has inner and outer walls 22 and 24 comprises positioning a first section of a small tube 22a in a first section of large tube 24a so that the end of the small tube projects beyond the end of the large tube, butt-welding a second section of small tube 22b to the first section, and a second section of large tube 24b to the first section of large tube without destroying communication between the annular spaces defined by the first and second sections of tubing, adding and welding at least one further section of each tube 22y and 24y and as the tube is built up bending it into the desired convolutions. Longitudinal communication between the sections is provided by three grooves 23 which may be in the inner or outer tubes. The inner and outer tubes may be of different materials, e.g. stainless steel for the outer tube and mild steel for the inner tube. To prevent weld material 31A obstructing the longitudinal channels a backing-ring 30 may be provided in a groove 31 between the ends of the outer tube sections 24. Alternatively the groove may be in the inner tube 22 at the junction between the outer tube sections (not shown, see Fig. 4). After the tube has been built up, the inner tube is expanded by hydraulic pressure against the elastic deformation of the outer tube to effect plastic deformation of the inner tube to ensure close engagement between the inner and outer tubes. In a modification a split sleeve is positioned between the inner and outer tubes and is introduced section by section and butt-welded as the tube is built up, the split in each section is aligned to provide a continuous longitudinal channel. Fig. 8 shows a double-walled tube 40 which terminates in a leak-detection chamber 41. The outer tube 42 is welded to the chamber and the inner tube is butt-welded to a section of similar tube 46 which is fitted tightly inside an outer strengthening tube 47 which stops short of the outer tube 42 to allow communication between the longitudinal channel 44 and the interior of the box. Pressure-sensitive means connected to the box will indicate leakage of fluid into the channel 44. In a modification, Fig. 9 (not shown), the tube 46 is strengthened by an inner tube 51 which extends to a point level with the end of the outer tube 42. The longitudinal channel may be straight or helical in any of the embodiments.
GB790/60A 1960-01-08 1960-01-08 An improved method of manufacturing heat exchanger tubes and improvements in or relating to heat exchanger tubes and to heat exchangers Expired GB894883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB790/60A GB894883A (en) 1960-01-08 1960-01-08 An improved method of manufacturing heat exchanger tubes and improvements in or relating to heat exchanger tubes and to heat exchangers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB790/60A GB894883A (en) 1960-01-08 1960-01-08 An improved method of manufacturing heat exchanger tubes and improvements in or relating to heat exchanger tubes and to heat exchangers

Publications (1)

Publication Number Publication Date
GB894883A true GB894883A (en) 1962-04-26

Family

ID=9710547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB790/60A Expired GB894883A (en) 1960-01-08 1960-01-08 An improved method of manufacturing heat exchanger tubes and improvements in or relating to heat exchanger tubes and to heat exchangers

Country Status (1)

Country Link
GB (1) GB894883A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013796A1 (en) * 1979-01-19 1980-08-06 Westinghouse Electric Corporation Heat exchanger with leak detecting double wall tubes
FR2524967A1 (en) * 1982-04-08 1983-10-14 Westinghouse Electric Corp PERFECTLY DESIGNED DOUBLE WALL TUBES FOR STEAM GENERATORS
FR2540971A1 (en) * 1983-02-10 1984-08-17 Novatome STEAM GENERATOR FOR A NUCLEAR REACTOR COOLED BY LIQUID METAL
EP0228722A2 (en) * 1985-12-26 1987-07-15 Stone & Webster Engineering Corporation Double tube steam generator
DE19608049A1 (en) * 1996-03-02 1997-09-04 Behr Gmbh & Co Pipe for motor vehicle air conditioning heat transfer
WO2019224423A1 (en) * 2018-05-21 2019-11-28 Valmet Technologies Oy A coaxial heat transfer tube suitable for a fluidized bed boiler and a method for manufacturing same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013796A1 (en) * 1979-01-19 1980-08-06 Westinghouse Electric Corporation Heat exchanger with leak detecting double wall tubes
FR2524967A1 (en) * 1982-04-08 1983-10-14 Westinghouse Electric Corp PERFECTLY DESIGNED DOUBLE WALL TUBES FOR STEAM GENERATORS
FR2540971A1 (en) * 1983-02-10 1984-08-17 Novatome STEAM GENERATOR FOR A NUCLEAR REACTOR COOLED BY LIQUID METAL
EP0117191A1 (en) * 1983-02-10 1984-08-29 Novatome Steam generator for a liquid metal-cooled nuclear reactor
EP0228722A2 (en) * 1985-12-26 1987-07-15 Stone & Webster Engineering Corporation Double tube steam generator
EP0228722A3 (en) * 1985-12-26 1988-10-26 Stone & Webster Engineering Corporation Double tube steam generator
DE19608049A1 (en) * 1996-03-02 1997-09-04 Behr Gmbh & Co Pipe for motor vehicle air conditioning heat transfer
WO2019224423A1 (en) * 2018-05-21 2019-11-28 Valmet Technologies Oy A coaxial heat transfer tube suitable for a fluidized bed boiler and a method for manufacturing same
US11859911B2 (en) 2018-05-21 2024-01-02 Valmet Technologies Oy Coaxial heat transfer tube suitable for a fluidized bed boiler and a method for manufacturing same

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