WO2002048603A1 - Vorrichtung zur leckageerkennung und leckageortung - Google Patents
Vorrichtung zur leckageerkennung und leckageortung Download PDFInfo
- Publication number
- WO2002048603A1 WO2002048603A1 PCT/EP2001/014309 EP0114309W WO0248603A1 WO 2002048603 A1 WO2002048603 A1 WO 2002048603A1 EP 0114309 W EP0114309 W EP 0114309W WO 0248603 A1 WO0248603 A1 WO 0248603A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensor
- substance
- gas
- leak
- manifold
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
-
- 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
- G01M3/20—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material
- G01M3/22—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using special tracer materials, e.g. dye, fluorescent material, radioactive material for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
Definitions
- the invention relates to a device for leak detection and leak detection with a permeable manifold, which is connected to a pump for a transport medium and to at least one sensor for a substance escaping in the event of a leak.
- Such a device is known from DE 24 31 907 C3 and is used as a leak detection and location system (LEOS), for example on a pipeline (e.g. for gas or petroleum). If a substance escapes from a leak in the pipeline, this substance gets into the collecting line by diffusion and is later brought together with a transport medium by means of the pump through the collecting line to a sensor and detected there. The leakage location is then determined from the transport time and the known flow rate.
- LOS leak detection and location system
- the invention is therefore based on the object of specifying a device for leak detection and leak detection in which the accuracy of the leak detection is improved even with a long collecting line.
- the object is achieved according to the invention with a device having the features of patent claim 1. Since the collecting line is assigned as markers at known locations and at a distance from one another of a detectable gas, and the sensor for the escaping substance is spatially assigned a sensor for the detectable gas is, an exact location of a leak is possible even if the flow rate of the transport medium in the manifold is not known. Rather, it is sufficient that the locations at which the detectable gas reaches the manifold are precisely known. In a sensor, the arriving maxima of the detectable gas then serve as markers that are to be assigned to a specific location on the collecting line.
- a maximum of a substance occurs between the second and the third maximum of the gas, it is certain that the substance has reached the collecting line between the second and the third source of the detectable gas. Since the locations of these sources are precisely documented and, moreover, the distance of the material maximum from the neighboring gas maximum can be inferred from the distance of the leak location from the corresponding source location, a reliable leak location is given.
- the detectable substance and the gas can be identical.
- a detectable gas is preferably provided which does not correspond to a substance escaping in the event of a leak, in a particularly preferred embodiment the use of a sensor for the exiting substance is provided, which does not register the gas. This means that even leaks that are in the immediate vicinity of the waymarks can be detected reliably and with high sensitivity.
- the senor for the emerging substance is preceded by a catalyst for converting hydrogen into water, for which the sensor is insensitive. This ensures that the measurement signal picked up by the sensor for the substance emerging from a leak is not disturbed by hydrogen. Separate sensors are then available to detect the hydrogen itself.
- the waymarks are sacrificial anodes that are sources of hydrogen.
- Such sacrificial anodes are attached to a pipeline at precisely known locations in order to prevent corrosion of the pipeline.
- the sacrificial anodes are usually made of aluminum, which are in electrical contact with the pipeline and form a local element with it, on the negative pole (cathode), i.e. the pipeline, of which hydrogen is produced. This then reaches the collecting line as a detectable gas at precisely known locations.
- the waymarks comprise metal bodies which are made of a nobler metal than the sacrificial anodes and are electrically connected to them. In this way, an independent local element is formed. As a result, the generation of hydrogen at a sacrificial anode, or at a metal body connected to the sacrificial anode, is continuously and reliably ensured with a collecting line laid under water.
- the metal body which acts as a cathode, is electrically insulated from the sacrificial anode, for example by plastic, and is connected to the sacrificial anode with an electrical line.
- a pressure pump is preferably provided as the pump, which is connected in the flow direction to the beginning of the collecting line.
- This has the advantage over the use of a suction pump that a high pressure difference can be built up along the manifold, which exceeds the maximum pressure difference achievable with a suction pump by a multiple, so that the system can be used over distances of more than 15 km without having to arrange several systems in a row.
- the use of a pressure pump in the manifold can generate such a high pressure difference that there is still sufficient flow of the transport medium even after several 100 km. With the use of a pressure pump, the transport medium can be reliably transported over a very long distance without the need for additional pumps.
- the collecting line is assigned a plurality of sensor units for the escaping substance and the gas which are spaced apart from one another, all sensor units being connected via an electrical supply and measuring line to an evaluation unit at the end of the collecting line.
- the fact that several sensor units are assigned to the collecting line has the advantage that the diffused substance is recognized more quickly than would be possible with a very long transport to the end of the collecting line.
- After a very long transport of the substance it could be distributed over a longer pipe length than when it penetrated, making detection more difficult.
- the individual sensor units only require an electrical supply and measuring line in order to send the measured values to a central evaluation unit at the end of the collecting line.
- Each section of the route between the pump and the first sensor unit, between two adjacent sensor units or between the last sensor unit of the collecting line and an additional sensor unit in the evaluation unit can then be viewed separately.
- the distance between the sensor units can be between 10 km and 50 km, while the length of the entire bus line can be between 400 km and 800 km.
- the advantage is achieved that the leak detection and location system (LEOS) known as such also over very large distances, e.g. up to 800 km, and can also be used on an underwater pipeline.
- LOS leak detection and location system
- FIG. 1 shows a device according to the invention in a schematic basic illustration, 2 and 3 further advantageous embodiments also in a schematic diagram
- Fig. 1 shows an approximately 500 km long and provided with a plurality of sensor units 4 manifold 1 for a leak detection and location system known as such, which starts from a pump 2, which works as a pressure pump, and ends at an evaluation unit 3, in which there is a last sensor unit 4.
- the remaining sensor units 4 are assigned to the collecting line 1 at a distance from one another.
- Each sensor unit 4 comprises a sensor 4a for the substance M which escapes in the event of a leak. If the substance M emerges from a neighboring pipeline 5 which is arranged together with the collecting line under water at a leak 51, this reaches the collecting line 1 and diffuses into it and is transported in a subsequent pumping process together with a transport medium T flowing in the collecting line 1 to the next sensor unit 4 and registered there.
- the sensor units 4 are all connected to the evaluation unit 3 via an electrical supply and measuring line 6, where the leakage location is then determined.
- sources 7 of a detectable gas G are arranged at known locations and serve as markers.
- these consist of sacrificial anodes 8, which are usually arranged on a pipeline 5 laid under water.
- hydrogen is produced which, as a detectable gas G, as well as the substance M to be detected, which has emerged from the pipeline 5, enters the collecting line 1 and is detected by the sensor unit 4.
- each sensor unit 4 contains one own sensor 4b assigned to sensor 4a for the detectable gas, in the example a hydrogen sensor.
- each sensor 4a for the substance M is spatially assigned a sensor 4a for the gas G. Since the locations of the hydrogen sources, namely the locations of the sacrificial anodes 8, are known, the leak location can be inferred from the position of a maximum for a substance M which has escaped from a leak between two hydrogen maxima without the flow velocity in the collecting line 1 being known got to.
- metal bodies 10 which consist of a more noble metal than the sacrificial anodes 8, are electrically insulated from these by a plastic and are connected to the sacrificial anodes 7 via an electrical line. Significantly more hydrogen is generated on these metal bodies 10 than on the sacrificial anodes 8 themselves.
- upstream catalysts 9 are provided which convert the hydrogen into non-disturbing water.
- the sources 7 of a detectable gas G which serve as markers can also be arranged directly on the collecting line 1 and can also be arranged in a ring around this, as shown in FIG.
- These sources are containers in which there is a liquid L, for example a low hydrocarbon compound Vapor pressure, in particular ethanol or a mixture of ethanol and water, is located, the gaseous component G diffuses into the collecting line 1.
- a liquid L for example a low hydrocarbon compound Vapor pressure, in particular ethanol or a mixture of ethanol and water
- a base metal 12 for example a wire made of zinc Zn
- the hydrogen that is then generated is sufficient to be able to be detected as a waymark using the sensor 4b.
- the embodiments shown in FIGS. 2 and 3 no longer require the presence of water in the vicinity of the collecting line 1 or the pipeline to be monitored, since the generation of the detectable gas is independent of the medium surrounding the collecting line 1 or the pipeline.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10060976A DE10060976B4 (de) | 2000-12-06 | 2000-12-06 | Vorrichtung zur Leckageerkennung und Leckageortung |
GB0314226A GB2386960B (en) | 2000-12-06 | 2001-12-06 | Device for identifying and locating leakages |
CA002434039A CA2434039C (en) | 2000-12-06 | 2001-12-06 | Device for leakage detection and leakage location |
AU2002238413A AU2002238413A1 (en) | 2000-12-06 | 2001-12-06 | Device for identifying and locating leakages |
US10/461,819 US6898962B2 (en) | 2000-12-06 | 2003-06-06 | Device for leakage detection and leakage location |
NO20032599A NO320039B1 (no) | 2000-12-06 | 2003-06-06 | Anordning til pavisning og lokalisering av lekkasjer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10060976.7 | 2000-12-06 | ||
DE10060976A DE10060976B4 (de) | 2000-12-06 | 2000-12-06 | Vorrichtung zur Leckageerkennung und Leckageortung |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/461,819 Continuation US6898962B2 (en) | 2000-12-06 | 2003-06-06 | Device for leakage detection and leakage location |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002048603A1 true WO2002048603A1 (de) | 2002-06-20 |
Family
ID=7666224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/014309 WO2002048603A1 (de) | 2000-12-06 | 2001-12-06 | Vorrichtung zur leckageerkennung und leckageortung |
Country Status (8)
Country | Link |
---|---|
US (1) | US6898962B2 (de) |
AU (1) | AU2002238413A1 (de) |
CA (1) | CA2434039C (de) |
DE (1) | DE10060976B4 (de) |
GB (1) | GB2386960B (de) |
NO (1) | NO320039B1 (de) |
RU (1) | RU2246659C1 (de) |
WO (1) | WO2002048603A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2070865B1 (de) | 2007-12-14 | 2015-12-09 | KRONES Aktiengesellschaft | Drehverteiler mit Leckageerkennung |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SA02230086B1 (ar) * | 2007-08-03 | 2007-08-13 | أريفا إن بي جي ام بي أتش | أنبوب حساس sensor pipe لتحديد الشكل العام للتركيز |
DE102008014808B4 (de) | 2008-03-18 | 2012-01-26 | Areva Np Gmbh | Sensorleitung zur Leckageüberwachung und Leckageortung und Verfahren zu ihrer Herstellung |
RU2464485C2 (ru) * | 2010-12-27 | 2012-10-20 | Российская Федерация, в лице Министерства промышленности и торговли РФ | Устройство контроля исправности трубопровода газоконденсата |
US9671307B2 (en) * | 2012-03-30 | 2017-06-06 | Atomic Energy Of Canada Limited | Leak location detection system |
US9823184B1 (en) | 2016-05-13 | 2017-11-21 | General Electric Company | Distributed gas detection system and method |
CN107098083B (zh) * | 2017-04-19 | 2019-03-26 | 山东海益化工科技有限公司 | 一种氯气存储罐防泄漏监控系统 |
CN110741419A (zh) * | 2017-10-02 | 2020-01-31 | 松下知识产权经营株式会社 | 传感器装置及气体监视系统 |
RU2748584C1 (ru) | 2018-05-01 | 2021-05-27 | Бейкер Хьюз Холдингз Ллк | Система датчика газа |
KR102170028B1 (ko) * | 2018-11-27 | 2020-10-26 | 한국원자력연구원 | 습도센서 센서튜브 및 이를 이용한 습도센서 어셈블리 |
CN110579566A (zh) * | 2019-08-26 | 2019-12-17 | 国网江苏省电力有限公司检修分公司 | 一种气体泄漏监测系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2277299A1 (fr) * | 1974-07-03 | 1976-01-30 | Issel Wolfgang | Procede et dispositif pour la determination de profils de concentration de corps liquides ou gazeux |
EP0525594A1 (de) * | 1991-08-02 | 1993-02-03 | Siemens Aktiengesellschaft | Verfahren und Einrichtung zur Überwachung eines Mediums mittels eines Sensorschlauches |
DE4125739A1 (de) * | 1991-08-02 | 1993-02-04 | Siemens Ag | Einrichtung und verfahren zur entnahme und messung von proben von einer anzahl verschiedener messstellen |
DE19617359A1 (de) * | 1996-04-30 | 1997-11-06 | Siemens Ag | Vorrichtung zur Detektion von Lecks in Einrichtungen, die organische Substanzen führen |
US5992217A (en) * | 1996-03-26 | 1999-11-30 | Siemens Aktiengesellschaft | Device and method for leakage detection |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH578624A5 (de) * | 1974-05-07 | 1976-08-13 | Caunned Ag | |
US5215409A (en) * | 1991-03-22 | 1993-06-01 | Siemens Aktiengesellschaft | Device for sealing off and monitoring a volume |
DE4125373A1 (de) * | 1991-07-31 | 1993-02-04 | Siemens Ag | Sensorschlauch zur ueberwachung eines mediums |
US6171025B1 (en) * | 1995-12-29 | 2001-01-09 | Shell Oil Company | Method for pipeline leak detection |
DE19612947C1 (de) * | 1996-04-01 | 1997-09-11 | Siemens Ag | Einrichtung und Verfahren zur Leckageerkennung |
-
2000
- 2000-12-06 DE DE10060976A patent/DE10060976B4/de not_active Expired - Fee Related
-
2001
- 2001-12-06 AU AU2002238413A patent/AU2002238413A1/en not_active Abandoned
- 2001-12-06 CA CA002434039A patent/CA2434039C/en not_active Expired - Lifetime
- 2001-12-06 WO PCT/EP2001/014309 patent/WO2002048603A1/de not_active Application Discontinuation
- 2001-12-06 RU RU2003120075/06A patent/RU2246659C1/ru not_active IP Right Cessation
- 2001-12-06 GB GB0314226A patent/GB2386960B/en not_active Expired - Fee Related
-
2003
- 2003-06-06 US US10/461,819 patent/US6898962B2/en not_active Expired - Lifetime
- 2003-06-06 NO NO20032599A patent/NO320039B1/no not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2277299A1 (fr) * | 1974-07-03 | 1976-01-30 | Issel Wolfgang | Procede et dispositif pour la determination de profils de concentration de corps liquides ou gazeux |
EP0525594A1 (de) * | 1991-08-02 | 1993-02-03 | Siemens Aktiengesellschaft | Verfahren und Einrichtung zur Überwachung eines Mediums mittels eines Sensorschlauches |
DE4125739A1 (de) * | 1991-08-02 | 1993-02-04 | Siemens Ag | Einrichtung und verfahren zur entnahme und messung von proben von einer anzahl verschiedener messstellen |
US5992217A (en) * | 1996-03-26 | 1999-11-30 | Siemens Aktiengesellschaft | Device and method for leakage detection |
DE19617359A1 (de) * | 1996-04-30 | 1997-11-06 | Siemens Ag | Vorrichtung zur Detektion von Lecks in Einrichtungen, die organische Substanzen führen |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2070865B1 (de) | 2007-12-14 | 2015-12-09 | KRONES Aktiengesellschaft | Drehverteiler mit Leckageerkennung |
Also Published As
Publication number | Publication date |
---|---|
DE10060976A1 (de) | 2002-06-27 |
GB0314226D0 (en) | 2003-07-23 |
CA2434039C (en) | 2008-07-08 |
NO320039B1 (no) | 2005-10-17 |
CA2434039A1 (en) | 2002-06-20 |
US20030213284A1 (en) | 2003-11-20 |
NO20032599D0 (no) | 2003-06-06 |
GB2386960A (en) | 2003-10-01 |
US6898962B2 (en) | 2005-05-31 |
GB2386960B (en) | 2004-07-07 |
RU2246659C1 (ru) | 2005-02-20 |
AU2002238413A1 (en) | 2002-06-24 |
DE10060976B4 (de) | 2005-06-23 |
NO20032599L (no) | 2003-06-06 |
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