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WO1990001653A1 - Tuyaux et tubes stratifies et leur procede de fabrication - Google Patents

Tuyaux et tubes stratifies et leur procede de fabrication Download PDF

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Publication number
WO1990001653A1
WO1990001653A1 PCT/US1989/003357 US8903357W WO9001653A1 WO 1990001653 A1 WO1990001653 A1 WO 1990001653A1 US 8903357 W US8903357 W US 8903357W WO 9001653 A1 WO9001653 A1 WO 9001653A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubular member
laminated pipe
gap
further characterized
accordance
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.)
Ceased
Application number
PCT/US1989/003357
Other languages
English (en)
Inventor
Anthony J. Grieco
Carmine F. Vasile
Anthony E. Conte
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1990001653A1 publication Critical patent/WO1990001653A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
    • F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
    • 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
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal
    • 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

Definitions

  • This invention relates generally to the field of laminated tubing for use in a wide variety of applications, including energy conservation, using concentric pipe including double wall, vented heat exchangers, high strength pipe, corrosion resistant pipe and lightweight pipe.
  • the invention contemplates the provision of a number of concentric tube constructions which will provide both for effective heat interchange, corrosion resistance and increased strength, as well as the effective prevention of fluid and/or gaseous interchange should a leak occur.
  • the laminated tube is formed as a pair of concentric members of differing materials in intermittent mutual surface contact.
  • the unit is formed by providing a seamless inner member and an outer member which has been longitudinally slit or formed to permit ready positioning about the inner member, leaving a longitudinal narrow gap, which is subsequently welded or brazed. As the welding or brazing material shrinks with cooling, the outer member radially contracts upon the inner member to form a stressed skin.
  • the outer member is provided with internal longitudinally oriented grooves, which collect possible leakage through the wall of the inner member and drain it to a collection point, either in a sealed system or open to the atmosphere.
  • an elongated flat metal shim is inserted between the inner and outer members to overlie the gap.
  • Figure 1 is a schematic cross-sectional view of a first embodiment of the invention.
  • Figure 2 is a schematic cross-sectional view of a second embodiment of the invention.
  • Figure 3 is a cross-sectional view of a third embodiment of the invention.
  • Figure 4 is an isometric view of a laminated tube forming part of any of the first, second and third embodiment.
  • the device comprises broadly: an inner tube member 11, an outer tube member 12, a heat-shielding shim 26 and a mass of brazing material 14.
  • the inner tube member 11 is of seamless construction, and is bounded by a smooth inner surface 16 and a smooth outer surface 17.
  • it will be formed of thin metal, glass or ceramic, etc.
  • the outer tubular member 12 may be formed of any weldable metal. It is bounded by an inner surface 20, an outer surface 21 and a pair of longitudinal parallel edges 22 and 23 bordering a gap 24 filled with a welding material 25.
  • the outer surface 21 can contain heat-transfer fins 25A (not shown).
  • a thin metal, elongated shim 26 may be positioned at the bottom of the gap 24. This may be formed of a thin strip of desired metallic material.
  • the embodiment is assembled by providing inner and outer tubular members 11 and 12 of compatible dimensions, and slitting the outer tubular member, which will facilitate the insertion of the inner tubular member therewithin. Since, after slitting, the outer tubular member will possess a degree of radial resiliency, force fitting is not necessary, and relatively long lengths of tubing may be assembled. Following this, the outer tube is welded together in conventional manner. Gas welding will, of course, provide for accurate control, but where the pipes are of substantial diameter, electric welding may be preferred.
  • the inner tube member is substituted by a ceramic or glass core 31, and the outer tube member is also metallic, as in the case in the first embodiment.
  • the welding operation is conducted in a similar fashion, care being taken to prevent excess stress which might crack the ceramic or glass core.
  • the thickness of the outer member may be reduced to facilitate this end.
  • the third embodiment of the invention is of somewhat more complex construction for use in applications where venting is required in order to prevent contamination and permit leak detection.
  • the device 40 includes first, second and third concentric members 41, 42, 43, respectively.
  • the first member 41 is preferably of thin stainless, seamless tubing, and is bounded by an inner surface 46 and an outer surface 47.
  • the second member 42 may be of nonferrous material, such as aluminum, copper or brass. It is bounded by an inner surface 50 and an outer surface 51, either or both of which are optionally provided with longitudinally extending venting grooves 52.
  • the third member 43 is, again, preferably of thin-walled stainless steel tubing, including an inner surface 60, an outer surface 61, a longitudinal gap 62 and a heat-shielding shim 63. It is assembled in the same manner as the first and second members, which, when integrated, are slid into the interior of the third member, and a similar welding operation is again conducted. With vent grooves included, the device 40 is an example of multiple wall, vented laminated pipe or tubing. The number of layers of pipe is not limited to the three illustrated in the drawings, but may be of any required number.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)

Abstract

Procédé de fabrication de tuyaux et tubes stratifiés qui consiste à prendre un premier tube intérieur sans soudure (16, 31, 41) autour duquel sera disposé un tube extérieur (12, 42) que l'on aura fendu longitudinalement afin de faciliter l'insertion en laissant un espace longitudinal entre les deux faces parallèles. On comble cet espace avec de la soudure ou de la brasure (25, 56) qui, en refroidissant, resserre radialement le tube extérieur autour du tube intérieur et met ainsi en contact étroit les surfaces jointives pour assurer le transfert de chaleur entre elles et/ou leur conférer une résistance mécanique accrue. Afin de prévenir la fusion du tube ou tuyau intérieur avec le tube ou tuyau extérieur, une cale métallique mince (26, 23) est prévue pour empêcher la soudure ou la brasure de couler sur le tube intérieur.
PCT/US1989/003357 1988-08-11 1989-08-03 Tuyaux et tubes stratifies et leur procede de fabrication Ceased WO1990001653A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23087288A 1988-08-11 1988-08-11
US230,872 1988-08-11

Publications (1)

Publication Number Publication Date
WO1990001653A1 true WO1990001653A1 (fr) 1990-02-22

Family

ID=22866910

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1989/003357 Ceased WO1990001653A1 (fr) 1988-08-11 1989-08-03 Tuyaux et tubes stratifies et leur procede de fabrication

Country Status (2)

Country Link
JP (1) JPH04501906A (fr)
WO (1) WO1990001653A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2319049A1 (fr) * 2008-08-27 2011-05-11 TN International Procédé de fabrication d'un emballage pour le transport et / ou stockage de matières nucléaires, utilisant le phénomène de retrait de soudage
CN109016425A (zh) * 2018-06-28 2018-12-18 云南联塑科技发展有限公司 一种pe管件尺寸生产控制方法

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1363160A (en) * 1920-07-03 1920-12-21 Jr Thomas E Murray Method of inclosing tubes within tubes
US1690684A (en) * 1924-07-24 1928-11-06 Wallace C Johnson Cylindrical member and method of making the same
US1710811A (en) * 1927-12-23 1929-04-30 Griscom Russell Co Return bend for fin tubes
US1947462A (en) * 1930-11-29 1934-02-20 Du Pont Film Mfg Corp Method of making casting wheels
US2158461A (en) * 1936-05-23 1939-05-16 Gen Motors Corp Method of making bearings
US2292026A (en) * 1939-12-15 1942-08-04 Battelle Memorial Institute Metallic coated ceramic ware
US3068562A (en) * 1960-04-15 1962-12-18 Struthers Wells Corp Method of making pressure vessels
US3129727A (en) * 1959-06-18 1964-04-21 Sanyo Special Steel Co Ltd Metallic pipe lined with glass subject to substantially no compressive stress and process for the manufacture thereof
US3224619A (en) * 1963-03-15 1965-12-21 Chicago Bridge & Iron Co Hydrogen processing multiple layer pressure vessels
US3386162A (en) * 1966-02-28 1968-06-04 Nooter Corp Method of making a multi-layered vessel
US3461917A (en) * 1967-02-14 1969-08-19 Mitsubishi Heavy Ind Ltd Pressure vessel with laminated plate wall for use with hydrogen
GB1496066A (en) * 1974-02-01 1977-12-21 Felten & Guilleaume Carlswerk Water-cooled highvoltage power cables having corrosion-resistant coolant tubes

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1363160A (en) * 1920-07-03 1920-12-21 Jr Thomas E Murray Method of inclosing tubes within tubes
US1690684A (en) * 1924-07-24 1928-11-06 Wallace C Johnson Cylindrical member and method of making the same
US1710811A (en) * 1927-12-23 1929-04-30 Griscom Russell Co Return bend for fin tubes
US1947462A (en) * 1930-11-29 1934-02-20 Du Pont Film Mfg Corp Method of making casting wheels
US2158461A (en) * 1936-05-23 1939-05-16 Gen Motors Corp Method of making bearings
US2292026A (en) * 1939-12-15 1942-08-04 Battelle Memorial Institute Metallic coated ceramic ware
US3129727A (en) * 1959-06-18 1964-04-21 Sanyo Special Steel Co Ltd Metallic pipe lined with glass subject to substantially no compressive stress and process for the manufacture thereof
US3068562A (en) * 1960-04-15 1962-12-18 Struthers Wells Corp Method of making pressure vessels
US3224619A (en) * 1963-03-15 1965-12-21 Chicago Bridge & Iron Co Hydrogen processing multiple layer pressure vessels
US3386162A (en) * 1966-02-28 1968-06-04 Nooter Corp Method of making a multi-layered vessel
US3461917A (en) * 1967-02-14 1969-08-19 Mitsubishi Heavy Ind Ltd Pressure vessel with laminated plate wall for use with hydrogen
GB1496066A (en) * 1974-02-01 1977-12-21 Felten & Guilleaume Carlswerk Water-cooled highvoltage power cables having corrosion-resistant coolant tubes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2319049A1 (fr) * 2008-08-27 2011-05-11 TN International Procédé de fabrication d'un emballage pour le transport et / ou stockage de matières nucléaires, utilisant le phénomène de retrait de soudage
US20110142571A1 (en) * 2008-08-27 2011-06-16 Tn International Method for manufacture of a package for the transport and/or storage of nuclear material, using the phenomenon of welding shrinkage
CN109016425A (zh) * 2018-06-28 2018-12-18 云南联塑科技发展有限公司 一种pe管件尺寸生产控制方法

Also Published As

Publication number Publication date
JPH04501906A (ja) 1992-04-02

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