FR2444878A1 - Sealing underwater pipelines to prevent flooding in case of accident - by device comprising two plugs connected together incorporating pyrotechnic gas generators controlling clamping and water-tightness - Google Patents

Sealing underwater pipelines to prevent flooding in case of accident - by device comprising two plugs connected together incorporating pyrotechnic gas generators controlling clamping and water-tightness

Info

Publication number
FR2444878A1
FR2444878A1 FR7836269A FR7836269A FR2444878A1 FR 2444878 A1 FR2444878 A1 FR 2444878A1 FR 7836269 A FR7836269 A FR 7836269A FR 7836269 A FR7836269 A FR 7836269A FR 2444878 A1 FR2444878 A1 FR 2444878A1
Authority
FR
France
Prior art keywords
plugs
pipeline
case
gas generators
water
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Withdrawn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
FR7836269A
Other languages
French (fr)
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
Priority to FR7836269A priority Critical patent/FR2444878A1/en
Publication of FR2444878A1 publication Critical patent/FR2444878A1/en
Withdrawn legal-status Critical Current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
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
    • F16L55/1283—Plugging pig

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

A device comprises two mobile plugs joined together by a cable. Each plug incorporates two pyrotechnic gas generators actuating respectively the clamping of the plug in the pipeline and the pressing of a joint against the inner wall of the pipeline. Press detectors, detectors of crushing of the pipeline and detectors of the presence of water initiate the operations. The two plugs are placed one on either side of the most curved part of the pipeline during laying. Damage accompanied by fissuring causes flodding only in the part between the plugs. The device eliminates all risk of sliding of the plug in case of failure of the locking mechanism of the plugs. The reliability of the plugs is increased by their doubling and by the fact that the systems supplying the energy are independent and always upstream of the corresp. joint, eliminating all risk of by-passing of the joint.
FR7836269A 1978-12-22 1978-12-22 Sealing underwater pipelines to prevent flooding in case of accident - by device comprising two plugs connected together incorporating pyrotechnic gas generators controlling clamping and water-tightness Withdrawn FR2444878A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7836269A FR2444878A1 (en) 1978-12-22 1978-12-22 Sealing underwater pipelines to prevent flooding in case of accident - by device comprising two plugs connected together incorporating pyrotechnic gas generators controlling clamping and water-tightness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7836269A FR2444878A1 (en) 1978-12-22 1978-12-22 Sealing underwater pipelines to prevent flooding in case of accident - by device comprising two plugs connected together incorporating pyrotechnic gas generators controlling clamping and water-tightness

Publications (1)

Publication Number Publication Date
FR2444878A1 true FR2444878A1 (en) 1980-07-18

Family

ID=9216499

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836269A Withdrawn FR2444878A1 (en) 1978-12-22 1978-12-22 Sealing underwater pipelines to prevent flooding in case of accident - by device comprising two plugs connected together incorporating pyrotechnic gas generators controlling clamping and water-tightness

Country Status (1)

Country Link
FR (1) FR2444878A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240851A2 (en) * 1986-03-29 1987-10-14 Siemens Aktiengesellschaft Device for plugging a pipeline
WO2016139478A1 (en) * 2015-03-03 2016-09-09 Ant Hire Solutions Llp Safety system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929410A (en) * 1958-05-29 1960-03-22 Morrison Bill Method and apparatus for plugging pipe lines
FR2225686A1 (en) * 1973-04-13 1974-11-08 Saipem Spa
FR2242657A1 (en) * 1973-08-27 1975-03-28 Petroles Cie Francaise
FR2328156A1 (en) * 1975-10-14 1977-05-13 Hydrotech Int Inc METHOD AND DEVICE FOR BLOCKING A PIPELINE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929410A (en) * 1958-05-29 1960-03-22 Morrison Bill Method and apparatus for plugging pipe lines
FR2225686A1 (en) * 1973-04-13 1974-11-08 Saipem Spa
FR2242657A1 (en) * 1973-08-27 1975-03-28 Petroles Cie Francaise
FR2328156A1 (en) * 1975-10-14 1977-05-13 Hydrotech Int Inc METHOD AND DEVICE FOR BLOCKING A PIPELINE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240851A2 (en) * 1986-03-29 1987-10-14 Siemens Aktiengesellschaft Device for plugging a pipeline
EP0240851A3 (en) * 1986-03-29 1988-07-20 Siemens Aktiengesellschaft Device for plugging a pipeline
WO2016139478A1 (en) * 2015-03-03 2016-09-09 Ant Hire Solutions Llp Safety system
CN107407453A (en) * 2015-03-03 2017-11-28 安特海尔解决方案有限责任合伙公司 Security system
US10451207B2 (en) 2015-03-03 2019-10-22 Ant Hire Solutions Llp Safety system

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Legal Events

Date Code Title Description
ST Notification of lapse