JPS55112542A - Pipe leak detection method - Google Patents

Pipe leak detection method

Info

Publication number
JPS55112542A
JPS55112542A JP2039079A JP2039079A JPS55112542A JP S55112542 A JPS55112542 A JP S55112542A JP 2039079 A JP2039079 A JP 2039079A JP 2039079 A JP2039079 A JP 2039079A JP S55112542 A JPS55112542 A JP S55112542A
Authority
JP
Japan
Prior art keywords
check object
object part
unit
detection unit
nitrogen gas
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
JP2039079A
Other languages
Japanese (ja)
Other versions
JPS6219693B2 (en
Inventor
Tomiyoshi Yamada
Akifumi Kobayashi
Shigeki Hirano
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.)
Osaka Gas Co Ltd
Original Assignee
Osaka Gas Co Ltd
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 Osaka Gas Co Ltd filed Critical Osaka Gas Co Ltd
Priority to JP2039079A priority Critical patent/JPS55112542A/en
Publication of JPS55112542A publication Critical patent/JPS55112542A/en
Publication of JPS6219693B2 publication Critical patent/JPS6219693B2/ja
Granted legal-status Critical Current

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  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE: To detect simply and rapidly leak throughout a long range by moving a detection unit.
CONSTITUTION: A part of provided pipe 1 for city gas carrying is cut in both sides of check object part 1a, and temporary pipe 1b for bypass is provided as required to continue fluid carrying, and meanwhile, detection unit 7 is inserted to check object part 1a and is made movable by wire 6, and nitrogen gas supply unit 8 and pressure reduction unit 9 are connected. Then, after city gas exhaustion and nitrogen gas charge for check object part 1a, nitrogen gas supply is stopped to reduce the pipe pressure of check object part 1a, and under this state, take-up unit 5 is used to move detection unit 7. As a result, leak can be detected rapidly with a small labor for check object part 1a extending throughout a long range.
COPYRIGHT: (C)1980,JPO&Japio
JP2039079A 1979-02-22 1979-02-22 Pipe leak detection method Granted JPS55112542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2039079A JPS55112542A (en) 1979-02-22 1979-02-22 Pipe leak detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2039079A JPS55112542A (en) 1979-02-22 1979-02-22 Pipe leak detection method

Publications (2)

Publication Number Publication Date
JPS55112542A true JPS55112542A (en) 1980-08-30
JPS6219693B2 JPS6219693B2 (en) 1987-04-30

Family

ID=12025682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2039079A Granted JPS55112542A (en) 1979-02-22 1979-02-22 Pipe leak detection method

Country Status (1)

Country Link
JP (1) JPS55112542A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243533A (en) * 1985-08-21 1987-02-25 Tokyo Gas Co Ltd Method for detecting leak area in piping

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491102A (en) * 1972-04-15 1974-01-08
JPS4939946A (en) * 1972-08-25 1974-04-15
JPS5099188A (en) * 1973-12-28 1975-08-06

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS491102A (en) * 1972-04-15 1974-01-08
JPS4939946A (en) * 1972-08-25 1974-04-15
JPS5099188A (en) * 1973-12-28 1975-08-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243533A (en) * 1985-08-21 1987-02-25 Tokyo Gas Co Ltd Method for detecting leak area in piping

Also Published As

Publication number Publication date
JPS6219693B2 (en) 1987-04-30

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