GB1481850A - Apparatus and method for detecting locating and optionally indicating leaks in pipeline segments - Google Patents
Apparatus and method for detecting locating and optionally indicating leaks in pipeline segmentsInfo
- Publication number
- GB1481850A GB1481850A GB3287574A GB3287574A GB1481850A GB 1481850 A GB1481850 A GB 1481850A GB 3287574 A GB3287574 A GB 3287574A GB 3287574 A GB3287574 A GB 3287574A GB 1481850 A GB1481850 A GB 1481850A
- Authority
- GB
- United Kingdom
- Prior art keywords
- line
- pipe
- conductor
- leak
- voltmeter
- 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.)
- Expired
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
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
- G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
- Pipeline Systems (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
1481850 Determining leak location electrically B BRANDES 25 July 1974 [26 July 1973] 32875/74 Heading G1N To determine the position of a leak 10 from an electrically conductive pipe-line carrying fluid, a ninevolt battery is connected to the pipe-line by a line 20 whereby if a leak occurs to short the pipe-line to a signal conductor 6, fastened to the pipe-line but insulated from it in the absence of a leak, current flows via line 20, the pipe-line, conductor 6, and resistor 26 to cause changeover of switch 27. Thereby the positive pole of a twenty volt battery is connected to one end 13 of the conductor 6 of which the other end 11 returns to the battery via diode 24 and line 23, the potential across the conductor being stabilized by a Zener diode 25. The voltmeter 12 thus lies in a measuring loop constituted by diode 31 line 32, the pipe-line, that length of the conductor 6 lying between the leak and the end 11, diode 24 and line 23. Thus the voltage indication on the voltmeter represents the distance of the leak from a datum point on the pipe-line, usually the end of a line segment disposed in a manhole. An amplifier 33 is disposed across a resistor 29 disposed in the line 28 from the twenty volt battery to the conductor 6 and acting in response to current flow in the line 28 to cause the voltmeter to retain its reading. The voltmeter may be a digital voltmeter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732337983 DE2337983C2 (en) | 1973-07-26 | 1973-07-26 | Location and monitoring circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1481850A true GB1481850A (en) | 1977-08-03 |
Family
ID=5888050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3287574A Expired GB1481850A (en) | 1973-07-26 | 1974-07-25 | Apparatus and method for detecting locating and optionally indicating leaks in pipeline segments |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5072683A (en) |
| AT (1) | AT351842B (en) |
| CH (1) | CH572187A5 (en) |
| DE (1) | DE2337983C2 (en) |
| FR (1) | FR2257856B1 (en) |
| GB (1) | GB1481850A (en) |
| SE (1) | SE397585B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2151059A (en) * | 1983-12-08 | 1985-07-10 | Helmersson Rune | Alarm apparatus for pipes |
| EP0160440A1 (en) * | 1984-04-11 | 1985-11-06 | RAYCHEM CORPORATION (a Delaware corporation) | Apparatus for detecting and obtaining imformation about changes in variables |
| EP0164838A1 (en) * | 1984-06-07 | 1985-12-18 | RAYCHEM CORPORATION (a Delaware corporation) | Event location using a locating member containing discrete impedances |
| EP0250776A1 (en) | 1983-06-30 | 1988-01-07 | RAYCHEM CORPORATION (a Delaware corporation) | Method for detecting and obtaining information about changes in variables |
| US4926129A (en) * | 1988-10-12 | 1990-05-15 | Raychem Corporation | Sensor assembly for detecting multiple events and distinguishing between them |
| US5015958A (en) | 1983-06-30 | 1991-05-14 | Raychem Corporation | Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors |
| US5235286A (en) | 1985-06-12 | 1993-08-10 | Raychem Corporation | Method for detecting and obtaining information about changers in variables |
| US5382909A (en) | 1983-06-30 | 1995-01-17 | Raychem Corporation | Method for detecting and obtaining information about changes in variables |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE447682B (en) * | 1985-07-26 | 1986-12-01 | Safe Bridge Ab | ALARM SYSTEM WITH AT LEAST A SIGNAL CORD FOR INDICATING DAMAGE TO AND / OR CAUSE TO MANIPULATION OF THE CORD |
| AT388430B (en) * | 1987-05-06 | 1989-06-26 | Scheuermann Herbert Dipl Ing | DEVICE FOR DETECTING AND LOCATING LEAKS IN A PIPING LINE CARRYING A DAMP MEDIUM |
| DE3721205A1 (en) * | 1987-06-26 | 1989-01-05 | Pfaudler Werke Ag | METHOD FOR DETERMINING DAMAGE TO A CORROSION PROTECTIVE LAYER AND MEASURING DEVICE FOR CARRYING OUT THIS METHOD |
| DE3822123C1 (en) * | 1988-06-30 | 1990-03-15 | Bernd 2325 Grebin De Brandes | |
| EP0417061B1 (en) * | 1989-09-05 | 1994-03-02 | Brandes, Bernd | Procedure and apparatus for locating the true leakage point of a pipeline guided in a wet medium |
| DE19604821C1 (en) * | 1996-02-10 | 1997-10-02 | Michael Hesky Gmbh | Device for leak detection in pipelines |
| DE102011113039A1 (en) * | 2011-09-09 | 2013-03-14 | Kurt Bruse | Apparatus for detecting leakage in piping of portable water system, produces local alarm and transmits message to receiver, when monitored electric current flowing in electrical lines exceeds threshold value |
| CN106123109B (en) * | 2016-08-05 | 2022-02-15 | 倪晨钧 | Pipeline monitoring system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE579184C (en) * | 1931-04-08 | 1933-06-22 | Berthold Jenewein Dr Ing | Moisture indicator for insulation |
| DE637703C (en) * | 1934-03-07 | 1936-11-02 | Ludwig Maurer Dipl Ing | Device for electrical remote display of the metric distance of leaks in pipes |
| DE1814857A1 (en) * | 1968-09-05 | 1970-04-30 | Siemens Ag | Arrangement for signaling leaks in a pipeline for the transport of liquids |
-
1973
- 1973-07-26 DE DE19732337983 patent/DE2337983C2/en not_active Expired
-
1974
- 1974-07-20 CH CH998174A patent/CH572187A5/xx not_active IP Right Cessation
- 1974-07-24 SE SE7409603A patent/SE397585B/en not_active IP Right Cessation
- 1974-07-25 GB GB3287574A patent/GB1481850A/en not_active Expired
- 1974-07-25 AT AT612874A patent/AT351842B/en not_active IP Right Cessation
- 1974-07-26 FR FR7426135A patent/FR2257856B1/fr not_active Expired
- 1974-07-26 JP JP8591674A patent/JPS5072683A/ja active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0250776A1 (en) | 1983-06-30 | 1988-01-07 | RAYCHEM CORPORATION (a Delaware corporation) | Method for detecting and obtaining information about changes in variables |
| US5015958A (en) | 1983-06-30 | 1991-05-14 | Raychem Corporation | Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors |
| US5382909A (en) | 1983-06-30 | 1995-01-17 | Raychem Corporation | Method for detecting and obtaining information about changes in variables |
| GB2151059A (en) * | 1983-12-08 | 1985-07-10 | Helmersson Rune | Alarm apparatus for pipes |
| EP0160440A1 (en) * | 1984-04-11 | 1985-11-06 | RAYCHEM CORPORATION (a Delaware corporation) | Apparatus for detecting and obtaining imformation about changes in variables |
| EP0164838A1 (en) * | 1984-06-07 | 1985-12-18 | RAYCHEM CORPORATION (a Delaware corporation) | Event location using a locating member containing discrete impedances |
| AU593526B2 (en) * | 1984-06-07 | 1990-02-15 | Raychem Corporation | Event location using a locating member containing discrete impedances |
| US5235286A (en) | 1985-06-12 | 1993-08-10 | Raychem Corporation | Method for detecting and obtaining information about changers in variables |
| US4926129A (en) * | 1988-10-12 | 1990-05-15 | Raychem Corporation | Sensor assembly for detecting multiple events and distinguishing between them |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5072683A (en) | 1975-06-16 |
| DE2337983A1 (en) | 1975-02-06 |
| ATA612874A (en) | 1979-01-15 |
| DE2337983C2 (en) | 1984-03-22 |
| FR2257856A1 (en) | 1975-08-08 |
| FR2257856B1 (en) | 1979-08-03 |
| SE7409603L (en) | 1975-01-27 |
| SE397585B (en) | 1977-11-07 |
| AT351842B (en) | 1979-08-10 |
| CH572187A5 (en) | 1976-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |