JPS5233583A - Method of detecting leakage in double-pipe type pipelines - Google Patents

Method of detecting leakage in double-pipe type pipelines

Info

Publication number
JPS5233583A
JPS5233583A JP10850275A JP10850275A JPS5233583A JP S5233583 A JPS5233583 A JP S5233583A JP 10850275 A JP10850275 A JP 10850275A JP 10850275 A JP10850275 A JP 10850275A JP S5233583 A JPS5233583 A JP S5233583A
Authority
JP
Japan
Prior art keywords
double
pipe type
detecting leakage
pressure
inner pipe
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
JP10850275A
Other languages
Japanese (ja)
Inventor
Takao Yamashita
Shigeru Sugaya
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP10850275A priority Critical patent/JPS5233583A/en
Publication of JPS5233583A publication Critical patent/JPS5233583A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: An inactive gas of pressure higher thsn the pressure of dangerous fluid being converyd in inner pipe is sealed between outer pipe and inner pipe and the differential pressures between the fluid pressure in the inner pipe and the pressure of the gas sealed between teh outer pipe and the inner pipe are measured, whereby leakage can be detected at high accuracy.
COPYRIGHT: (C)1977,JPO&Japio
JP10850275A 1975-09-09 1975-09-09 Method of detecting leakage in double-pipe type pipelines Pending JPS5233583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10850275A JPS5233583A (en) 1975-09-09 1975-09-09 Method of detecting leakage in double-pipe type pipelines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10850275A JPS5233583A (en) 1975-09-09 1975-09-09 Method of detecting leakage in double-pipe type pipelines

Publications (1)

Publication Number Publication Date
JPS5233583A true JPS5233583A (en) 1977-03-14

Family

ID=14486390

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10850275A Pending JPS5233583A (en) 1975-09-09 1975-09-09 Method of detecting leakage in double-pipe type pipelines

Country Status (1)

Country Link
JP (1) JPS5233583A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03137534A (en) * 1989-10-23 1991-06-12 Takuma Co Ltd Heat transfer pipe and leak detecting system using this pipe
JP2002054800A (en) * 2000-08-07 2002-02-20 Mitsubishi Heavy Ind Ltd Gas leakage detecting system
JP2004085372A (en) * 2002-08-27 2004-03-18 Taisei Corp Double pipe system
JP2005164034A (en) * 2003-11-20 2005-06-23 Itp Liquefied natural gas transporting pipe
JP2009294121A (en) * 2008-06-06 2009-12-17 Mitsuaki Kuramoto Method and apparatus for searching for pin hole of frp-made three-dimensional hollow-structured reservoir
JP2010091221A (en) * 2008-10-10 2010-04-22 Mitsubishi Heavy Ind Ltd Device and method for detecting breakage of tube in gas heater

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03137534A (en) * 1989-10-23 1991-06-12 Takuma Co Ltd Heat transfer pipe and leak detecting system using this pipe
JP2002054800A (en) * 2000-08-07 2002-02-20 Mitsubishi Heavy Ind Ltd Gas leakage detecting system
JP4508374B2 (en) * 2000-08-07 2010-07-21 三菱重工業株式会社 Gas leak detection system
JP2004085372A (en) * 2002-08-27 2004-03-18 Taisei Corp Double pipe system
JP2005164034A (en) * 2003-11-20 2005-06-23 Itp Liquefied natural gas transporting pipe
JP2012067919A (en) * 2003-11-20 2012-04-05 Itp Pipe for transportation of liquefied natural gas
JP2009294121A (en) * 2008-06-06 2009-12-17 Mitsuaki Kuramoto Method and apparatus for searching for pin hole of frp-made three-dimensional hollow-structured reservoir
JP2010091221A (en) * 2008-10-10 2010-04-22 Mitsubishi Heavy Ind Ltd Device and method for detecting breakage of tube in gas heater

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