FR2368666A1 - Gas pipe leak checking system - generates vacuum after isolation from mains and monitors pressure rise - Google Patents

Gas pipe leak checking system - generates vacuum after isolation from mains and monitors pressure rise

Info

Publication number
FR2368666A1
FR2368666A1 FR7631665A FR7631665A FR2368666A1 FR 2368666 A1 FR2368666 A1 FR 2368666A1 FR 7631665 A FR7631665 A FR 7631665A FR 7631665 A FR7631665 A FR 7631665A FR 2368666 A1 FR2368666 A1 FR 2368666A1
Authority
FR
France
Prior art keywords
mains
pressure rise
isolation
gas pipe
checking system
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
FR7631665A
Other languages
French (fr)
Other versions
FR2368666B1 (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.)
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 FR7631665A priority Critical patent/FR2368666A1/en
Publication of FR2368666A1 publication Critical patent/FR2368666A1/en
Application granted granted Critical
Publication of FR2368666B1 publication Critical patent/FR2368666B1/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
    • 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
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
    • G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • 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
    • G01M3/2815—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 using pressure measurements

Abstract

The system is used to check gas pipes inside dwelling houses for leaks. The distribution pipes are first isolated from the mains, and a vacuum is then generated inside them, after which the rate of pressure rise is monitored. After generation of the vacuum a tracer gas can be introduced into the piping and leaks found by using a detector sensitive to this tracer gas. The pipes can also be connected to a reference leak, whose rate of leakage is equal to the minimum threshold value of the leaks to be detected. This leak unit can be mounted at the highest point, and can be detachable, so that the gas fitter can take it with him.
FR7631665A 1976-10-21 1976-10-21 Gas pipe leak checking system - generates vacuum after isolation from mains and monitors pressure rise Granted FR2368666A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7631665A FR2368666A1 (en) 1976-10-21 1976-10-21 Gas pipe leak checking system - generates vacuum after isolation from mains and monitors pressure rise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7631665A FR2368666A1 (en) 1976-10-21 1976-10-21 Gas pipe leak checking system - generates vacuum after isolation from mains and monitors pressure rise

Publications (2)

Publication Number Publication Date
FR2368666A1 true FR2368666A1 (en) 1978-05-19
FR2368666B1 FR2368666B1 (en) 1979-03-02

Family

ID=9179028

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7631665A Granted FR2368666A1 (en) 1976-10-21 1976-10-21 Gas pipe leak checking system - generates vacuum after isolation from mains and monitors pressure rise

Country Status (1)

Country Link
FR (1) FR2368666A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549576A1 (en) * 1983-07-21 1985-01-25 Cqfd METHOD AND DEVICE FOR LEAKAGE CONTROL ON A FLUID DISTRIBUTION NETWORK
EP0926428A3 (en) * 1997-12-19 2001-12-12 Wiengas GmbH Method and apparatus for removal of fuel gases from a gas distribution network
WO2001098704A1 (en) * 2000-06-21 2001-12-27 Basf Aktiengesellschaft Shut-off device for a flow channel and implementation of leak tests with the aid thereof
CN116677928A (en) * 2023-08-03 2023-09-01 苏芯物联技术(南京)有限公司 Intelligent detection method for welding protection gas pipeline leakage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961616A (en) * 1961-02-23 1964-06-24 Linde Eismasch Ag Process and apparatus for leak detection
FR2243431A1 (en) * 1973-09-06 1975-04-04 Gaubert Francois Gas channel failure detector - uses vacuum pump driven by electric motor, isolating valve and manometer
GB1426556A (en) * 1972-05-05 1976-03-03 British Gas Corp Vacuum proving apparatus for plant using gaseous fuel and plant having such arrangement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961616A (en) * 1961-02-23 1964-06-24 Linde Eismasch Ag Process and apparatus for leak detection
GB1426556A (en) * 1972-05-05 1976-03-03 British Gas Corp Vacuum proving apparatus for plant using gaseous fuel and plant having such arrangement
FR2243431A1 (en) * 1973-09-06 1975-04-04 Gaubert Francois Gas channel failure detector - uses vacuum pump driven by electric motor, isolating valve and manometer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549576A1 (en) * 1983-07-21 1985-01-25 Cqfd METHOD AND DEVICE FOR LEAKAGE CONTROL ON A FLUID DISTRIBUTION NETWORK
EP0133148A2 (en) * 1983-07-21 1985-02-13 C Q F D Société à Responsabilité Limitée dite : System and apparatus for checking for leaks in a fluid distribution network
EP0133148A3 (en) * 1983-07-21 1985-03-13 C Q F D Société à Responsabilité Limitée dite : System and apparatus for checking for leaks in a fluid distribution network
EP0926428A3 (en) * 1997-12-19 2001-12-12 Wiengas GmbH Method and apparatus for removal of fuel gases from a gas distribution network
WO2001098704A1 (en) * 2000-06-21 2001-12-27 Basf Aktiengesellschaft Shut-off device for a flow channel and implementation of leak tests with the aid thereof
CN116677928A (en) * 2023-08-03 2023-09-01 苏芯物联技术(南京)有限公司 Intelligent detection method for welding protection gas pipeline leakage
CN116677928B (en) * 2023-08-03 2023-10-10 苏芯物联技术(南京)有限公司 Intelligent detection method for welding protection gas pipeline leakage

Also Published As

Publication number Publication date
FR2368666B1 (en) 1979-03-02

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Legal Events

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