GB960628A - Leak detector tube and method of making the same - Google Patents

Leak detector tube and method of making the same

Info

Publication number
GB960628A
GB960628A GB3827961A GB3827961A GB960628A GB 960628 A GB960628 A GB 960628A GB 3827961 A GB3827961 A GB 3827961A GB 3827961 A GB3827961 A GB 3827961A GB 960628 A GB960628 A GB 960628A
Authority
GB
United Kingdom
Prior art keywords
tube
tubes
inner tube
extending
leak detector
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
GB3827961A
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.)
Calumet and Hecla Inc
Original Assignee
Calumet and Hecla 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 Calumet and Hecla Inc filed Critical Calumet and Hecla Inc
Publication of GB960628A publication Critical patent/GB960628A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • 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
    • B21C37/154—Making multi-wall tubes
    • 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
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides
    • 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
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
    • 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
    • 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
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3227—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators for radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L2101/00—Uses or applications of pigs or moles
    • F16L2101/30—Inspecting, measuring or testing

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

960,628. Indicating leakages in tubes. CALUMET & HECLA Inc. Oct. 25, 1961 [March 29, 1961], No. 38279/61. Heading G1S. [Also in Divisions B3 and F4] A leak detector tube structure for a heat transfer device comprises an elongated normally imperforate outer tube 11 provided with integral, circumferential finning 12 extending radially outwardly and along the length thereof to provide longitudinally spaced, finned portions, and a normally imperforate inner tube 13 telescoped coaxially in the tube 11 in fixed relation thereto, one of the tubes having longitudinally extending formations 15 on one surface thereof at which it is in tight radial engagement with the other tube, the formations extending substantially from end to end of the structure and defining circumferentially spaced, longitudinally extending, leak detector passages 14 between the tubes. As shown, the tube 10 is provided with radially extending, helical ribs 12 and a number of internal, longitudinal, grooves 14 of triangular cross-section which are formed simultaneously with the formation of the ribs; the inner tube is expanded into contact with the tube 10. The area of contact between the tubes is within the range of 60 to 80% of the outer suface of the inner tube. Alternatively, the inner tube is formed with a grooved outer surface. Specification 673,818 is referred to.
GB3827961A 1961-03-29 1961-10-25 Leak detector tube and method of making the same Expired GB960628A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9929061A 1961-03-29 1961-03-29

Publications (1)

Publication Number Publication Date
GB960628A true GB960628A (en) 1964-06-10

Family

ID=22274247

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3827961A Expired GB960628A (en) 1961-03-29 1961-10-25 Leak detector tube and method of making the same

Country Status (4)

Country Link
CH (1) CH386190A (en)
ES (2) ES273316A1 (en)
GB (1) GB960628A (en)
NL (1) NL6611608A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090554A (en) * 1976-11-17 1978-05-23 The Babcock & Wilcox Company Heat exchanger
US4232735A (en) * 1978-05-05 1980-11-11 Kim Sung C Double-walled finned heat transfer tube
US4237968A (en) * 1979-05-02 1980-12-09 Westinghouse Electric Corp. Heat exchanger with double wall tubes and three tube sheets
US4249593A (en) * 1979-01-19 1981-02-10 The United States Of America As Represented By The United States Department Of Energy Heat exchanger with leak detecting double wall tubes
EP0052522A2 (en) * 1980-11-19 1982-05-26 New Zealand Dairy & Industrial Supplies Limited An enhanced surface tube
US4337824A (en) * 1980-10-24 1982-07-06 Amtrol Double wall heat exchanger
US4343350A (en) * 1978-08-04 1982-08-10 Uop Inc. Double wall tubing assembly and method of making same
US4348794A (en) * 1978-05-05 1982-09-14 International Telephone And Telegraph Corporation Double-walled finned heat transfer tube
US4546819A (en) * 1984-02-10 1985-10-15 Amtrol Inc. Double wall heat exchanger
FR2563900A1 (en) * 1984-05-04 1985-11-08 Novatome DOUBLE-WALL TUBE FOR A HEAT EXCHANGER AND METHOD OF MAKING THE TUBE
US4744412A (en) * 1986-10-01 1988-05-17 Itt Corporation Double-wall tube heat exchanger
GB2338441A (en) * 1998-06-16 1999-12-22 Teddington Centreless Grinding Mandrel
US6926069B1 (en) * 1999-07-22 2005-08-09 Spiro Research B.V. Method for manufacturing a double-walled heat exchanging tube with leak detection
US10724658B2 (en) 2015-12-18 2020-07-28 Sandvik Materials Technology Deutschland Gmbh Method for manufacturing a tube of metal as well as a tube of metal

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4090554A (en) * 1976-11-17 1978-05-23 The Babcock & Wilcox Company Heat exchanger
US4348794A (en) * 1978-05-05 1982-09-14 International Telephone And Telegraph Corporation Double-walled finned heat transfer tube
US4232735A (en) * 1978-05-05 1980-11-11 Kim Sung C Double-walled finned heat transfer tube
US4343350A (en) * 1978-08-04 1982-08-10 Uop Inc. Double wall tubing assembly and method of making same
US4249593A (en) * 1979-01-19 1981-02-10 The United States Of America As Represented By The United States Department Of Energy Heat exchanger with leak detecting double wall tubes
US4237968A (en) * 1979-05-02 1980-12-09 Westinghouse Electric Corp. Heat exchanger with double wall tubes and three tube sheets
US4337824A (en) * 1980-10-24 1982-07-06 Amtrol Double wall heat exchanger
EP0052522A3 (en) * 1980-11-19 1982-11-24 New Zealand Dairy & Industrial Supplies Limited An enhanced surface tube
EP0052522A2 (en) * 1980-11-19 1982-05-26 New Zealand Dairy & Industrial Supplies Limited An enhanced surface tube
US4546819A (en) * 1984-02-10 1985-10-15 Amtrol Inc. Double wall heat exchanger
FR2563900A1 (en) * 1984-05-04 1985-11-08 Novatome DOUBLE-WALL TUBE FOR A HEAT EXCHANGER AND METHOD OF MAKING THE TUBE
EP0167418A1 (en) * 1984-05-04 1986-01-08 Novatome Double-walled heat-transfer tube and manufacturing method for this tube
US4744412A (en) * 1986-10-01 1988-05-17 Itt Corporation Double-wall tube heat exchanger
GB2338441A (en) * 1998-06-16 1999-12-22 Teddington Centreless Grinding Mandrel
US6926069B1 (en) * 1999-07-22 2005-08-09 Spiro Research B.V. Method for manufacturing a double-walled heat exchanging tube with leak detection
US10724658B2 (en) 2015-12-18 2020-07-28 Sandvik Materials Technology Deutschland Gmbh Method for manufacturing a tube of metal as well as a tube of metal

Also Published As

Publication number Publication date
ES273316A1 (en) 1962-07-16
CH386190A (en) 1964-12-31
ES278548A1 (en) 1963-02-01
NL6611608A (en) 1966-10-25

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