JPS5580031A - Fluid leakage detection system - Google Patents
Fluid leakage detection systemInfo
- Publication number
- JPS5580031A JPS5580031A JP15264478A JP15264478A JPS5580031A JP S5580031 A JPS5580031 A JP S5580031A JP 15264478 A JP15264478 A JP 15264478A JP 15264478 A JP15264478 A JP 15264478A JP S5580031 A JPS5580031 A JP S5580031A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- cable
- leakage
- tube section
- short
- 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
Abstract
PURPOSE: To make possible a total monitoring of fulid leakage with single system through a short-circuit of a leakage detection cable or change of the electric characteristics thereof by detecting the leakage with the cable at the single tube section and the pressure variation in the tube due to the leakage at the multiple tube section.
CONSTITUTION: When a leak takes place at the single tube section of a pipe line 1, a leakage detection cable 8 changes in the electric characteristics or short-circuits. The leak can be detected by the pulse reflection method, the measurement of the resistance, or the like. When a leak occurs in the inner pipe of the multiple tube section, the pressure in the space between inner and outer pipes rises. The pressure thus raised is introduced into a pressure switch box 5 through a pressure conduit 4 to raise the pressure in the box 5, thereby actuating the pressure switch 12. If the pressure switch 12 is arranges to be a normal contact, a characteristic impedance 11 is allowed to be bridged to the cable 8 according to the rise in the pressure, or when the impedance is not used, the cable is short circuited. The change in the characteristics or the short circuiting is detected by the pulse reflection method, the measurement of the resistance or the like.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15264478A JPS5580031A (en) | 1978-12-12 | 1978-12-12 | Fluid leakage detection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15264478A JPS5580031A (en) | 1978-12-12 | 1978-12-12 | Fluid leakage detection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5580031A true JPS5580031A (en) | 1980-06-16 |
Family
ID=15544905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15264478A Pending JPS5580031A (en) | 1978-12-12 | 1978-12-12 | Fluid leakage detection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5580031A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102507109A (en) * | 2011-11-02 | 2012-06-20 | 天津鹏翎胶管股份有限公司 | One-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method |
-
1978
- 1978-12-12 JP JP15264478A patent/JPS5580031A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102507109A (en) * | 2011-11-02 | 2012-06-20 | 天津鹏翎胶管股份有限公司 | One-way valve rubber tube positive pressure opening and negative pressure leakage detection device and operation method |
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