FR2444218A1 - Insulated pipeline laying system - stretches each inner pipe beyond outer one to weld flange onto end (NL 18.6.80) - Google Patents

Insulated pipeline laying system - stretches each inner pipe beyond outer one to weld flange onto end (NL 18.6.80)

Info

Publication number
FR2444218A1
FR2444218A1 FR7930695A FR7930695A FR2444218A1 FR 2444218 A1 FR2444218 A1 FR 2444218A1 FR 7930695 A FR7930695 A FR 7930695A FR 7930695 A FR7930695 A FR 7930695A FR 2444218 A1 FR2444218 A1 FR 2444218A1
Authority
FR
France
Prior art keywords
inner pipe
stretches
pipe
stretched
pipeline laying
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.)
Granted
Application number
FR7930695A
Other languages
French (fr)
Other versions
FR2444218B1 (en
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 FR2444218A1 publication Critical patent/FR2444218A1/en
Application granted granted Critical
Publication of FR2444218B1 publication Critical patent/FR2444218B1/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
    • F16L59/143—Pre-insulated 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
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/16—Arrangements specially adapted to local requirements at flanges, junctions, valves or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)

Abstract

The system lays a pipeline comprising lengts of insulated pipe, partic. for a district heating system. Each length comprises metal inner and outer pipes with an insulating layer between, the inner and outer pipes sliding in relation to each other. The inner pipe is stretched and secured in position in relation to the outer one when in the stretched condition. Pref. the insulating layer is foamed plastic, more pref. polyurethane being used. The inner pipe is stretched beyond its dimension in the pre-stressed state, and an annular flange is welded onto its end protruding beyond the outer one. The stretching action is then released, whereupon the flange bears via an electrically and thermally insulating intermediate layer with a self-centring action against the end of the outer pipe.
FR7930695A 1978-12-16 1979-12-14 METHOD FOR LAYING A PIPE DUCT Expired FR2444218B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782854524 DE2854524C2 (en) 1978-12-16 1978-12-16 Method for laying a pipeline in the ground and a fixed point in a pipe string that can be laid in this way

Publications (2)

Publication Number Publication Date
FR2444218A1 true FR2444218A1 (en) 1980-07-11
FR2444218B1 FR2444218B1 (en) 1986-02-21

Family

ID=6057480

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930695A Expired FR2444218B1 (en) 1978-12-16 1979-12-14 METHOD FOR LAYING A PIPE DUCT

Country Status (4)

Country Link
DE (1) DE2854524C2 (en)
DK (1) DK193679A (en)
FR (1) FR2444218B1 (en)
NL (1) NL7902288A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3216477C2 (en) * 1982-05-03 1986-01-30 kabelmetal electro GmbH, 3000 Hannover Method of laying a pipeline for hot media
DE3605039A1 (en) * 1986-02-18 1986-12-11 Zay, Bruno, Dipl.-Ing., 4030 Ratingen METHOD FOR THE PRODUCTION OF STEEL SHEATHING SHEETS AND THEIR LAYING IN PLASTIC SHEATHING TUBE SYSTEMS

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405021A (en) * 1944-06-07 1946-07-30 Albert A Durant Insulated pipe
US2696835A (en) * 1950-11-04 1954-12-14 Edward W Kaiser Conduit construction
US3410313A (en) * 1965-05-04 1968-11-12 New England Realty Co Corrosion protected conduit system
US3693665A (en) * 1970-01-28 1972-09-26 Shell Oil Co Pipeline for the transport of cold liquids

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2039272B2 (en) * 1970-08-07 1974-04-25 Quassowski-Kempf Geb. Kempf, Ingeborg, 4000 Duesseldorf Insulation of a pipeline through which a heated medium flows
CH610082A5 (en) * 1976-05-20 1979-03-30 Meier Schenk Arthur Method for laying pipelines for hot or cooled heat media

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2405021A (en) * 1944-06-07 1946-07-30 Albert A Durant Insulated pipe
US2696835A (en) * 1950-11-04 1954-12-14 Edward W Kaiser Conduit construction
US3410313A (en) * 1965-05-04 1968-11-12 New England Realty Co Corrosion protected conduit system
US3693665A (en) * 1970-01-28 1972-09-26 Shell Oil Co Pipeline for the transport of cold liquids

Also Published As

Publication number Publication date
NL7902288A (en) 1980-06-18
FR2444218B1 (en) 1986-02-21
DE2854524A1 (en) 1980-06-26
DK193679A (en) 1980-06-17
DE2854524C2 (en) 1986-10-09

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse