JPS5751619A - Method to detect position of fluid leakage in pipe and fluid conveyor pipe to be used for said method - Google Patents
Method to detect position of fluid leakage in pipe and fluid conveyor pipe to be used for said methodInfo
- Publication number
- JPS5751619A JPS5751619A JP12739580A JP12739580A JPS5751619A JP S5751619 A JPS5751619 A JP S5751619A JP 12739580 A JP12739580 A JP 12739580A JP 12739580 A JP12739580 A JP 12739580A JP S5751619 A JPS5751619 A JP S5751619A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- resistance
- conductor
- pipes
- wire
- 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
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
PURPOSE: To detect the position of liquid leakage correctly in case the position of fluid leakage in a pipe covered with heat insulator is detected by burying a resistance wire and a conductor in the whole length of the pipe for measuring the value of resistance at the time of short-circuiting between the resistance wire and the conductor.
CONSTITUTION: A pipe 1 made of synthetic resin is inserted into a metallic cover pipe 2 coaxially. Between both pipes 1 and 2, a resistance wire (a) such as nichrome wire and a conductor with low electric resistance such as copper wire (b) are positioned to project to both sides of the pipe 1 mutually in parallel not to be in touch with the metallic cover pipe 2. At this stage, the gap between both pipes 1 and 2 is filled with foamed heat insulator (c) such as hard urethane foam for constructing the unit body of a conveyor pipe 3. A plurality of these conveyor pipes 3 are connected 4 hermetically, while resistance wires (a) and conductors (b) are respectively connected for obtaining a series of liquid conveyor pipes. Then, the short-circuiting between the resistance wire (a) and the conductor (b) caused by liquid leakage is detected by a resistance measuring device 5, and the position of the leakage is calculated on the basis of the measured result.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12739580A JPS5751619A (en) | 1980-09-12 | 1980-09-12 | Method to detect position of fluid leakage in pipe and fluid conveyor pipe to be used for said method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12739580A JPS5751619A (en) | 1980-09-12 | 1980-09-12 | Method to detect position of fluid leakage in pipe and fluid conveyor pipe to be used for said method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5751619A true JPS5751619A (en) | 1982-03-26 |
Family
ID=14958925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12739580A Pending JPS5751619A (en) | 1980-09-12 | 1980-09-12 | Method to detect position of fluid leakage in pipe and fluid conveyor pipe to be used for said method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5751619A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5279148A (en) * | 1990-05-10 | 1994-01-18 | Bernd Brandes | Method and apparatus for detecting and locating leaks and loose couplings in conduits for liquids |
| GB2440752A (en) * | 2006-08-09 | 2008-02-13 | Douglas Gray | Water pipe and water meter monitoring system |
| US7398676B2 (en) | 2005-07-05 | 2008-07-15 | Samsung Electronics Co., Ltd. | Leak sensor and leak sensing system |
| JP2010190574A (en) * | 2009-02-13 | 2010-09-02 | Omron Corp | Liquid leak detector |
| JP2011517337A (en) * | 2008-04-24 | 2011-06-02 | ユミン システム テクノロジー カンパニー，リミテッド | Physical property sensing leak sensor device |
-
1980
- 1980-09-12 JP JP12739580A patent/JPS5751619A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5279148A (en) * | 1990-05-10 | 1994-01-18 | Bernd Brandes | Method and apparatus for detecting and locating leaks and loose couplings in conduits for liquids |
| US7398676B2 (en) | 2005-07-05 | 2008-07-15 | Samsung Electronics Co., Ltd. | Leak sensor and leak sensing system |
| GB2440752A (en) * | 2006-08-09 | 2008-02-13 | Douglas Gray | Water pipe and water meter monitoring system |
| JP2011517337A (en) * | 2008-04-24 | 2011-06-02 | ユミン システム テクノロジー カンパニー，リミテッド | Physical property sensing leak sensor device |
| JP2010190574A (en) * | 2009-02-13 | 2010-09-02 | Omron Corp | Liquid leak detector |
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