JPS56110032A - Inspecting method for water leakage from buried pipe - Google Patents

Inspecting method for water leakage from buried pipe

Info

Publication number
JPS56110032A
JPS56110032A JP1332080A JP1332080A JPS56110032A JP S56110032 A JPS56110032 A JP S56110032A JP 1332080 A JP1332080 A JP 1332080A JP 1332080 A JP1332080 A JP 1332080A JP S56110032 A JPS56110032 A JP S56110032A
Authority
JP
Japan
Prior art keywords
place
pipe
mantles
leakage
vacuum
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.)
Pending
Application number
JP1332080A
Other languages
Japanese (ja)
Inventor
Kaoru Abe
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.)
NIPPON KANKEN KOGYO KK
Original Assignee
NIPPON KANKEN KOGYO KK
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 NIPPON KANKEN KOGYO KK filed Critical NIPPON KANKEN KOGYO KK
Priority to JP1332080A priority Critical patent/JPS56110032A/en
Publication of JPS56110032A publication Critical patent/JPS56110032A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G01M3/005—Investigating fluid-tightness of structures using pigs or moles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

PURPOSE:To enable accurate detection even of slight leakage at any place in a sewer pipe joint by opening a vacuum pipe for inspection in a vacant place and thereby reducing pressure in the place. CONSTITUTION:A hollow cylindrical body is moved in the direction of an arrow F under the condition that mantles 1a and 1b are deflated, and when a connecting pipe 2 is positioned at the joint part 4a of sewer pipes 4, compressed air is supplied from a compressed-air tube 5 to inflate the mantles 1a and 1b and thereby the mantles are closely fitted on to the inside wall of the sewer pipe 4. Thereafter, the pressure in a circular vacant place 10 formed by the outside surface of the connecting pipe 2, the inside wall of the sewer pipes 4 and the mantles 1a and 1b is reduced through the intermediary of the vacuum pipe 7 for inspection. When there is any place of leakage in the joint part 4a, the air and underground water outside the sewer pipe 4 are sucked into the vacant place 10, whereby the degree of vacuum therein is lowered. According to this fall of degree of vacuum, the water leakage at the joint part 4a and the size of the place of leakage are detected.
JP1332080A 1980-02-05 1980-02-05 Inspecting method for water leakage from buried pipe Pending JPS56110032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1332080A JPS56110032A (en) 1980-02-05 1980-02-05 Inspecting method for water leakage from buried pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1332080A JPS56110032A (en) 1980-02-05 1980-02-05 Inspecting method for water leakage from buried pipe

Publications (1)

Publication Number Publication Date
JPS56110032A true JPS56110032A (en) 1981-09-01

Family

ID=11829866

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1332080A Pending JPS56110032A (en) 1980-02-05 1980-02-05 Inspecting method for water leakage from buried pipe

Country Status (1)

Country Link
JP (1) JPS56110032A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151537A (en) * 1982-03-05 1983-09-08 Osaka Gas Co Ltd Leakage testing method of junction part
US4646787A (en) * 1985-03-18 1987-03-03 Institute Of Gas Technology Pneumatic pipe inspection device
JPS63246629A (en) * 1987-01-08 1988-10-13 ウエザーホード・オイル・ツール・ゲゼルシャフト・ミット・ベシュレンクテル Airtightness test apparatus for joint between hollow body
KR100473152B1 (en) * 2002-06-11 2005-03-08 모악개발 주식회사 System for out-put and security of leakage test data for leakage test apparatus of waterworks and sewer
WO2007139324A1 (en) * 2006-05-26 2007-12-06 Tap Environment Testing apparatus of water proof for sewer and method thereof
WO2014052170A1 (en) 2012-09-27 2014-04-03 Redline Detection, Llc Balloon catheter apparatus for high pressure leak detection
JP2014219201A (en) * 2013-04-30 2014-11-20 寿樹 伊藤 Method for inspecting water-tightness of underground pipe
US9933326B2 (en) 2015-07-22 2018-04-03 Redline Detection, Llc System and method for detecting microscopic leaks
US11268875B2 (en) 2016-11-22 2022-03-08 Redline Detection, Llc Method and apparatus for fluid leak detection

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS492115A (en) * 1972-04-19 1974-01-10
JPS4910785A (en) * 1972-04-07 1974-01-30
JPS53125093A (en) * 1977-04-07 1978-11-01 Fujikura Ltd Airtightness testing method of steel pipe weld zone

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910785A (en) * 1972-04-07 1974-01-30
JPS492115A (en) * 1972-04-19 1974-01-10
JPS53125093A (en) * 1977-04-07 1978-11-01 Fujikura Ltd Airtightness testing method of steel pipe weld zone

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151537A (en) * 1982-03-05 1983-09-08 Osaka Gas Co Ltd Leakage testing method of junction part
US4646787A (en) * 1985-03-18 1987-03-03 Institute Of Gas Technology Pneumatic pipe inspection device
JPS63246629A (en) * 1987-01-08 1988-10-13 ウエザーホード・オイル・ツール・ゲゼルシャフト・ミット・ベシュレンクテル Airtightness test apparatus for joint between hollow body
JPH0545893B2 (en) * 1987-01-08 1993-07-12 Uezaafuoodo Oiru Tooru Gmbh
KR100473152B1 (en) * 2002-06-11 2005-03-08 모악개발 주식회사 System for out-put and security of leakage test data for leakage test apparatus of waterworks and sewer
WO2007139324A1 (en) * 2006-05-26 2007-12-06 Tap Environment Testing apparatus of water proof for sewer and method thereof
WO2014052170A1 (en) 2012-09-27 2014-04-03 Redline Detection, Llc Balloon catheter apparatus for high pressure leak detection
EP2901065A4 (en) * 2012-09-27 2016-05-18 Redline Detection Llc Balloon catheter apparatus for high pressure leak detection
US9417153B2 (en) 2012-09-27 2016-08-16 Redline Detection, Llc Balloon catheter apparatus for high pressure leak detection
US9752951B2 (en) 2012-09-27 2017-09-05 Redline Detection, Llc Balloon catheter apparatus for high pressure leak detection
JP2014219201A (en) * 2013-04-30 2014-11-20 寿樹 伊藤 Method for inspecting water-tightness of underground pipe
US9933326B2 (en) 2015-07-22 2018-04-03 Redline Detection, Llc System and method for detecting microscopic leaks
US11268875B2 (en) 2016-11-22 2022-03-08 Redline Detection, Llc Method and apparatus for fluid leak detection

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