FR2435652A1 - Conduite metallique calorifugee et enterree pour le transport de fluides - Google Patents

Conduite metallique calorifugee et enterree pour le transport de fluides

Info

Publication number
FR2435652A1
FR2435652A1 FR7819250A FR7819250A FR2435652A1 FR 2435652 A1 FR2435652 A1 FR 2435652A1 FR 7819250 A FR7819250 A FR 7819250A FR 7819250 A FR7819250 A FR 7819250A FR 2435652 A1 FR2435652 A1 FR 2435652A1
Authority
FR
France
Prior art keywords
cavity
low pressure
pressure gas
annular space
reflective surfaces
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.)
Withdrawn
Application number
FR7819250A
Other languages
English (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.)
Sofitec SAS
Original Assignee
Sofitec SAS
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 Sofitec SAS filed Critical Sofitec SAS
Priority to FR7819250A priority Critical patent/FR2435652A1/fr
Publication of FR2435652A1 publication Critical patent/FR2435652A1/fr
Withdrawn legal-status Critical Current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
    • F16L59/06—Arrangements using an air layer or vacuum
    • F16L59/065—Arrangements using an air layer or vacuum using vacuum
    • 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
    • F16L59/08—Means for preventing radiation, e.g. with metal foil

Landscapes

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

Abstract

L'invention se rapporte aux conduites de transport de fluide. Dans la conduite constituée de deux tubes métalliques coaxiaux - le tube intérieur constituant le conduit de transport proprement dit - la face extérieure du tube intérieur ou la face intérieure du tube extérieur ou les deux sont munies d'une surface réfléchissante anti-rayonnement. De plus le fluide calorifuge disposé dans les espaces intertubulaires est un gaz neutre, de préférence à pression réduite, propre à atténuer fortement la convection entre le tube intérieur et le tube extérieur. Application au transport de fluides dont la température supérieure ou inférieure à celle du sol doit être maintenue.
FR7819250A 1978-06-28 1978-06-28 Conduite metallique calorifugee et enterree pour le transport de fluides Withdrawn FR2435652A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7819250A FR2435652A1 (fr) 1978-06-28 1978-06-28 Conduite metallique calorifugee et enterree pour le transport de fluides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7819250A FR2435652A1 (fr) 1978-06-28 1978-06-28 Conduite metallique calorifugee et enterree pour le transport de fluides

Publications (1)

Publication Number Publication Date
FR2435652A1 true FR2435652A1 (fr) 1980-04-04

Family

ID=9210068

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7819250A Withdrawn FR2435652A1 (fr) 1978-06-28 1978-06-28 Conduite metallique calorifugee et enterree pour le transport de fluides

Country Status (1)

Country Link
FR (1) FR2435652A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1413954A (fr) * 1964-08-21 1965-10-15 Air Liquide Enveloppes calorifuges pour enceintes à basse température, à utilisation discontinue
CH435892A (fr) * 1963-09-18 1967-05-15 Comp Generale Electricite Dispositif d'isolation thermique
FR2012260A1 (fr) * 1968-07-03 1970-03-13 British Petroleum Co

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH435892A (fr) * 1963-09-18 1967-05-15 Comp Generale Electricite Dispositif d'isolation thermique
FR1413954A (fr) * 1964-08-21 1965-10-15 Air Liquide Enveloppes calorifuges pour enceintes à basse température, à utilisation discontinue
FR2012260A1 (fr) * 1968-07-03 1970-03-13 British Petroleum Co

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Legal Events

Date Code Title Description
ST Notification of lapse