GB1390280A - Tubular structures - Google Patents

Tubular structures

Info

Publication number
GB1390280A
GB1390280A GB5356472A GB5356472A GB1390280A GB 1390280 A GB1390280 A GB 1390280A GB 5356472 A GB5356472 A GB 5356472A GB 5356472 A GB5356472 A GB 5356472A GB 1390280 A GB1390280 A GB 1390280A
Authority
GB
United Kingdom
Prior art keywords
strip
pipes
inner pipe
around
winding
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
GB5356472A
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.)
KM Kabelmetal AG
Original Assignee
KM Kabelmetal AG
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 KM Kabelmetal AG filed Critical KM Kabelmetal AG
Publication of GB1390280A publication Critical patent/GB1390280A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/153—Arrangements for the insulation of pipes or pipe systems for flexible pipes
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/12—Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating material; Arrangements specially adapted for supporting insulated bodies
    • F16L59/125—Helical spacers
    • 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
    • F16L9/16—Rigid pipes wound from sheets or strips, with or without reinforcement
    • F16L9/165—Rigid pipes wound from sheets or strips, with or without reinforcement of metal
    • 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
    • G01M3/28—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 pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—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 pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/283—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 pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes for double-walled pipes

Landscapes

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

Abstract

1390280 Pipes KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 20 Nov 1972 [27 Dec 1971] 53564/72 Heading F2P [Also in Division H1] A tubular structure which may be used as a fluid conduit or electric cable sheath comprises inner and outer helically corrugated pipes 1, 5 and a strip 2 helically wound between the pipes without contact of its adjacent edges, the strip having raised and/or depressed portions 3, 4 and acting to resist longitudinal expansion of the inner pipe. The pipes may be of copper, aluminium or steel, and the strip of copper, aluminium or a plastics material. A polyethylene sheath 7 may be provided and the space 6 between the pipes filled with a pressurized inert gas with means for monitoring the gas pressure to detect leaks. The structure may be manufactured by winding a predeformed strip around the inner pipe, winding a flat strip around the inner pipe under sufficient tension to cause plastic deformation of the strip or winding a flat strip around the inner pipe, disposing the outer pipe around the inner pipe and corrugating it in such a manner as to cause plastic deformation of the strip.
GB5356472A 1971-12-27 1972-11-20 Tubular structures Expired GB1390280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712164814 DE2164814C2 (en) 1971-12-27 1971-12-27 Tubular structure consisting of two corrugated tubes arranged coaxially with one another

Publications (1)

Publication Number Publication Date
GB1390280A true GB1390280A (en) 1975-04-09

Family

ID=5829355

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5356472A Expired GB1390280A (en) 1971-12-27 1972-11-20 Tubular structures

Country Status (9)

Country Link
JP (1) JPS5723156B2 (en)
AT (1) AT327622B (en)
BE (1) BE791014A (en)
CH (1) CH544252A (en)
DE (1) DE2164814C2 (en)
FR (1) FR2167136A5 (en)
GB (1) GB1390280A (en)
IT (1) IT972714B (en)
NL (1) NL7217343A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487660A (en) * 1980-10-31 1984-12-11 Electric Power Research Institute Multiple wall structure for flexible cable using tubular and spiral corrugations
US6116817A (en) * 1988-12-20 2000-09-12 Pisces By Opw, Inc. Hydrocarbon fuel piping system with a flexible inner pipe and an outer pipe
CN107940054A (en) * 2017-12-22 2018-04-20 上海河图工程股份有限公司 A kind of wear-resistant multilevel decompression mechanism and its application process
CN114171245A (en) * 2021-10-18 2022-03-11 安徽华能电缆集团有限公司 Offshore floating wind power generation cable

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54119010U (en) * 1978-02-09 1979-08-21
FR2475185A1 (en) * 1980-02-06 1981-08-07 Technigaz FLEXIBLE CALORIFYING PIPE FOR PARTICULARLY CRYOGENIC FLUIDS
DE3029545A1 (en) * 1980-08-04 1982-03-11 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover BENDABLE, HEAT-INSULATED PIPE
DE8800949U1 (en) * 1988-01-27 1988-03-10 REHAU AG + Co, 8673 Rehau Coaxial tube
DE19525176A1 (en) * 1995-07-11 1997-01-16 Brugg Rohrsysteme Gmbh Process for monitoring a pipeline
DE29610718U1 (en) * 1996-06-19 1996-08-22 BRUGG Rohrsysteme GmbH, 31515 Wunstorf Fitting for a connection or through connection
DE29711868U1 (en) 1997-07-07 1997-10-30 BRUGG Rohrsysteme GmbH, 31515 Wunstorf Conduit for transporting petrochemical media
DE29817966U1 (en) 1998-10-08 1998-12-17 BRUGG Rohrsysteme GmbH, 31515 Wunstorf Conduit pipe for the transport of liquid or gaseous environmentally hazardous media
DE29920810U1 (en) 1999-11-26 2000-03-23 BRUGG Rohrsysteme GmbH, 31515 Wunstorf Device for sealing and monitoring the space between a corrugated inner tube and a plastic outer tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332446A (en) * 1964-05-15 1967-07-25 Douglas B Mann Cryogenic transfer line arrangement
US3490496A (en) * 1968-01-15 1970-01-20 Vacuum Barrier Corp Coaxial tubing having improved spacer means
US3595275A (en) * 1968-07-24 1971-07-27 Vacuum Barrier Corp Spacer means for cryogenic coaxial tubing
BE758669A (en) * 1969-11-28 1971-04-16 Kabel Metallwerke Ghh STRAP WINDING CORRUGATED TUBE

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4487660A (en) * 1980-10-31 1984-12-11 Electric Power Research Institute Multiple wall structure for flexible cable using tubular and spiral corrugations
US6116817A (en) * 1988-12-20 2000-09-12 Pisces By Opw, Inc. Hydrocarbon fuel piping system with a flexible inner pipe and an outer pipe
CN107940054A (en) * 2017-12-22 2018-04-20 上海河图工程股份有限公司 A kind of wear-resistant multilevel decompression mechanism and its application process
CN107940054B (en) * 2017-12-22 2024-03-08 上海河图工程股份有限公司 Application method of antiwear multi-stage depressurization mechanism for residual oil processing
CN114171245A (en) * 2021-10-18 2022-03-11 安徽华能电缆集团有限公司 Offshore floating wind power generation cable
CN114171245B (en) * 2021-10-18 2023-12-08 安徽华能电缆集团有限公司 Offshore floating wind power generation cable

Also Published As

Publication number Publication date
AT327622B (en) 1976-02-10
JPS4877411A (en) 1973-10-18
JPS5723156B2 (en) 1982-05-17
DE2164814A1 (en) 1973-06-28
CH544252A (en) 1973-11-15
BE791014A (en) 1973-03-01
IT972714B (en) 1974-05-31
DE2164814C2 (en) 1982-08-26
ATA907372A (en) 1975-04-15
FR2167136A5 (en) 1973-08-17
NL7217343A (en) 1973-06-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee