EP1784602A1 - Sammelleitung zur leckageüberwachung und leckageortung - Google Patents
Sammelleitung zur leckageüberwachung und leckageortungInfo
- Publication number
- EP1784602A1 EP1784602A1 EP06706652A EP06706652A EP1784602A1 EP 1784602 A1 EP1784602 A1 EP 1784602A1 EP 06706652 A EP06706652 A EP 06706652A EP 06706652 A EP06706652 A EP 06706652A EP 1784602 A1 EP1784602 A1 EP 1784602A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrically conductive
- conductive layer
- substance
- manifold
- leakage
- 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.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000004071 soot Substances 0.000 claims abstract description 3
- 239000000126 substance Substances 0.000 claims description 33
- 238000001514 detection method Methods 0.000 claims description 14
- 239000006229 carbon black Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 40
- 239000004020 conductor Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 239000005038 ethylene vinyl acetate Substances 0.000 description 4
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
-
- 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
- F17D5/04—Preventing, monitoring, or locating loss by means of a signalling fluid enclosed in a double wall
Definitions
- the invention relates to a collecting line for leakage monitoring and leakage location on a system. Moreover, the invention relates to a device and a method for leakage monitoring and leak detection on a system in which such a manifold is used.
- a manifold which consists of a support tube, which is provided on its outer surface with a permeable layer through which a leaking from a leakage in the system, such as a pipeline, in the vicinity of the manifold and can diffuse to be detected substance.
- the support tube is impermeable to this substance and is provided with openings so that the substance can reach the interior of the manifold.
- a method known from DE 24 31 907 C3 determines the location at which the substance has penetrated into the collecting line. This place corresponds to the place where the
- Substance has leaked out of the monitored part of the plant.
- the material which has penetrated into the collecting line together with a carrier gas located in the collecting line is fed to a sensor likewise connected to the collecting line with a pump connected to the collecting line.
- the time between the switching on of the pump and the arrival of the substance at the sensor can determine the location at which the substance penetrates into the collecting line and thus the leakage location at the plant part.
- the carrier gas is therefore only at longer intervals or interrogation intervals, for example, every 6 to 24 h, transported through the manifold, so that between the occurrence of a leak and their discovery in the most unfavorable Case can be a period of time, which is composed of the time interval between two consecutive measurements and the time required for the penetrated substance from the beginning of the pumping process to the arrival at the sensor.
- a period of time of the order of many hours may be associated with considerable irreversible damage both to the system and to the environment, especially in the case of larger leaks.
- the invention is based on the object to provide a manifold for leakage monitoring and leakage location, with the time without any additional installation effort between the occurrence of leakage and its detection or location can be reduced.
- the invention is based on the object to provide a device for leakage monitoring and leak detection with such a manifold.
- the invention is also based on the object to provide a method for leakage monitoring and leak detection, with the use of such a manifold, the time between leakage location and occurrence of the leakage is reduced.
- the manifold includes an apertured support tube which is covered on its inner or outer surface by a layer at least one longitudinally of the support tube extending portion is permeable to a substance to be monitored, and having an extending in its longitudinal direction electrically conductive layer into which the substance can at least penetrate and whose ohmic resistance depends on the material penetrating into it.
- the occurrence of a substance emerging in the event of a leakage can be monitored permanently by measuring the resistance of the electrically conductive, material-sensitive layer between two measuring points which are widely spaced from one another. In other words, there may be a permanent leak monitoring that is independent of the times when a pump connected to the manifold is turned on.
- the electrically conductive layer consists of a filled with carbon black polymer material.
- Ethylene vinyl acetate EVA is particularly suitable as polymeric base material, which is permeable both to a large number of substances and also has a sufficiently good electrical conductivity (low specific ohmic resistance) by admixing carbon black, preferably between 20 and 25% by weight , Surprisingly, it has been found that the addition of carbon black reduces the permeability at most to an acceptable extent.
- the electrically conductive layer can completely fill the inner or outer surface of the support tube. constantly cover up.
- the electrically conductive layer can also be used to monitor the bus for mechanical destruction, such as breakage.
- the electrically conductive layer is surrounded by an electrically insulating permeable layer which is permeable to the substance, with sufficient sealing of the collecting line, a reduction of the permeation rate caused by the carbon black addition can be reduced since the electrically conductive permeable layer is only one more Thickness, which is limited to the extent required for monitoring the electrical resistance or the electrical conductivity.
- the electrically conductive permeable layer is electrically isolated from the environment, so that the manifold can be laid in the ground or in contact with electrically conductive parts of the plant.
- the object according to the invention is in each case achieved with a device or a method having the features of the subclaims 8 and 9, respectively.
- the period between the occurrence of leakage and the leak location is thereby reduced. that a resistance increase is used as a trigger or trigger signal for performing a leak detection measurement in which a fluid carrier medium is pumped through the manifold and connected to a sensor for a leak detection at leakage leakage is analyzed.
- a leakage location is thus no longer exclusively at fixed time intervals but additionally or only if the 'occurrence of a leak is detected by the resistance measurement.
- Fig. 5 shows a device according to the invention also in a schematic schematic diagram.
- a manifold 1 comprises a support tube 2, for example of PVC, which is provided with a plurality of radial openings 4.
- a support tube 2 for example of PVC, which is provided with a plurality of radial openings 4.
- an electrically conductive layer 6 is arranged, which completely covers the support tube 2 and is permeable to a substance L to be detected.
- the electrically conductive layer 6 is material-sensitive, i. Their (specific) electrical resistance depends on the presence of the substance L.
- the electrically conductive layer 6 consists of a polymer material filled with electrically conductive particles, which is an electrically insulating polymeric base material to which conductive particles, in the example carbon black particles, are added to bring about an electrical conductivity.
- the electrically conductive layer 6 is surrounded by an electrically nonconductive layer 8 which is likewise permeable to the substance and which preferably consists of the same polymeric base material.
- the selection of a suitable polymeric base material for the electrically conductive layer 6 depends on the substance L emerging and to be detected in the event of a leakage.
- all polymeric base materials are suitable, through which the substance L to be detected can pass on the one hand and undergo a structural change, for example a swelling, due to the material entering it in order to break up bridges between the electrically conductive particles and break up the bridges based on these bridges electrical conductivity of the polymer material mixed with the conductive particles to deteriorate.
- a structural change for example a swelling
- the amount of carbon black required in practice depends on the one hand on the polymeric base material and on the other hand on the length of the manifold in order to achieve detectable electrical resistance values, for example in the range of a few M ⁇ , with low metrological outlay.
- ethylene vinyl acetate EVA has proven to be particularly suitable as the polymeric base material.
- the amount of carbon black in the electrically conductive layer 6 is in the embodiment between 20 and 25 wt.%.
- the layer thicknesses of the layers 6 and 8 are 0.5 mm in each case.
- the outer, electrically insulating permeable layer 8 is also surrounded by a not shown in the figure Maschinenlas- elastic protective braid with which it is protected from mechanical damage.
- the support tube 2 may also be provided on its inner surface with a coating which consists of a material which has only a low absorption capacity for the substance L, to a resulting at a large distance between the leakage location and the detection sensor by absorption in the support tube 2 signal attenuation to a large extent to reduce.
- This coating for example of Teflon PTFE, is applied to the inner surface before the radial openings are introduced into the support tube.
- a single-layer structure with only one electrically conductive layer 6 permeable to the substance L is provided so that layer 8 and layer 6 form a functional unit.
- the electrically conductive layer 6 is a longitudinally extending, band-shaped part of the permeable layer 8.
- electrically conductive layer 6 and permeable layer 8 are arranged side by side on the support tube 2.
- the collecting line 1 is suitable for laying in an electrically insulating environment.
- a band-shaped electrically conductive layer 6 is provided which in embedded in the permeable layer 8 and electrically isolated therefrom by the environment to enable use in an electrically conductive environment.
- a return conductor 9 is embedded in the layer 8, whose electrical resistance is not influenced by the substance L.
- This return conductor 9 is electrically connected at one end of the bus 1 with the layer 6 and allows the measurement of their resistance. As shown in the figure, the return conductor 9 may be an embedded wire. Alternatively, it may also be formed by a band-shaped electrically conductive layer.
- the collecting line 1 is laid along a pipeline 10 between a pump 12 and a sensor 14 for the substance to be detected.
- an evaluation and control device 16 the electrical resistance of the electrically conductive layer 6 along a distance s permanent, d. H. measured even when the pump 12 is not activated, i. when a fluid carrier medium M located in the carrier tube 2 rests.
- a separate return conductor 18 is laid along the manifold 1 for this purpose.
- a control signal 20 is generated in the control and evaluation device 1, with which the Pump 12 is put into operation and a leakage location can be performed according to the known methods explained above.
- a separate return conductor 18 or a return conductor 9 (FIG. 4) integrated into the collecting line 1 is not required, for example by a ground contact at the end point the distance, as shown in dashed lines in the figure is made.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Examining Or Testing Airtightness (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005007988A DE102005007988A1 (de) | 2005-02-22 | 2005-02-22 | Sammelleitung zur Leckageüberwachung und Leckageortung |
| PCT/EP2006/000994 WO2006089629A1 (de) | 2005-02-22 | 2006-02-04 | Sammelleitung zur leckageüberwachung und leckageortung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1784602A1 true EP1784602A1 (de) | 2007-05-16 |
| EP1784602B1 EP1784602B1 (de) | 2008-10-29 |
Family
ID=36087630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06706652A Expired - Lifetime EP1784602B1 (de) | 2005-02-22 | 2006-02-04 | Sammelleitung zur leckageüberwachung und leckageortung |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7802465B2 (de) |
| EP (1) | EP1784602B1 (de) |
| AT (1) | ATE412850T1 (de) |
| CA (1) | CA2570274C (de) |
| DE (2) | DE102005007988A1 (de) |
| RU (1) | RU2333419C1 (de) |
| WO (1) | WO2006089629A1 (de) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8032095B1 (en) | 2005-03-03 | 2011-10-04 | Marvell International Ltd. | Method and apparatus for detecting carrier leakage in a wireless or similar system |
| US7770435B2 (en) | 2006-09-01 | 2010-08-10 | Areva Np Gmbh | Pipeline having a collector line and method for leakage monitoring and leakage location |
| US8104327B1 (en) * | 2006-09-27 | 2012-01-31 | C.G.R.S. Inc. | Leak detection method for a primary containment system |
| US7461541B2 (en) * | 2006-09-27 | 2008-12-09 | C.G.R.S., Inc | Leak detection method for a primary containment system |
| DE102007005693B4 (de) | 2007-02-06 | 2009-12-24 | Areva Np Gmbh | Verfahren zum Herstellen einer Sammelleitung zur Erkennung und Ortung eines bei einer Leckage in die Umgebung der Sammelleitung austretenden Stoffes |
| DE102007060392A1 (de) | 2007-12-14 | 2009-06-18 | Krones Ag | Drehverteiler mit Leckageerkennung |
| DE202010005100U1 (de) | 2010-04-15 | 2010-07-15 | Lincoln Gmbh | Schmiersystem und Fahrzeug mit einem Schmiersystem |
| RU2599403C1 (ru) * | 2015-06-04 | 2016-10-10 | Акционерное Общество "Атомэнергопроект" | Устройство для обнаружения утечек в трубопроводах |
| WO2017091907A1 (en) * | 2015-12-04 | 2017-06-08 | Instrumar Limited | Apparatus and method of detecting breaches in pipelines |
| US9823184B1 (en) | 2016-05-13 | 2017-11-21 | General Electric Company | Distributed gas detection system and method |
| CA2969503C (en) * | 2016-06-02 | 2023-07-11 | C-Fer Technologies (1999) Inc. | Leak detection backbone and flow barriers |
| CN106876811B (zh) * | 2017-04-12 | 2024-02-09 | 华霆(合肥)动力技术有限公司 | 探漏装置及电池模组探漏系统 |
| RU188229U1 (ru) * | 2017-12-28 | 2019-04-03 | Общество с ограниченной ответственностью "ЭнергоТэк" | Электропроводящая полимерная труба кабель- канала для прокладки электрического кабеля |
| US11435252B2 (en) | 2018-05-01 | 2022-09-06 | Baker Hughes, A Ge Company, Llc | Gas sensor system |
| US11199466B2 (en) * | 2018-08-31 | 2021-12-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | System and method for liquid leak detection |
| KR102170028B1 (ko) | 2018-11-27 | 2020-10-26 | 한국원자력연구원 | 습도센서 센서튜브 및 이를 이용한 습도센서 어셈블리 |
| CN112411678B (zh) * | 2020-11-04 | 2022-06-24 | 湖南力乐利环保科技有限公司 | 一种用以探测自来水管道漏损的传感模块 |
| CN112524496A (zh) * | 2020-11-23 | 2021-03-19 | 中国计量大学 | 一种提高光纤温度检测自来水管泄露系统警报精度的实验装置 |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE579184C (de) * | 1931-04-08 | 1933-06-22 | Berthold Jenewein Dr Ing | Feuchtigkeitsanzeigevorrichtung fuer Isolierungen |
| DE1084092B (de) * | 1958-12-08 | 1960-06-23 | Pleiger Maschf Paul | Einrichtung zur Meldung von Undichtheiten an im Erdreich verlegten Rohrleitungen, die schaedliche Fluessigkeiten, z. B. Rohoel, fuehren |
| US3485085A (en) * | 1968-04-23 | 1969-12-23 | William M Hawkins Jr | Leak detector |
| DE2431907C3 (de) * | 1974-07-03 | 1978-03-09 | Wolfgang Dipl.-Phys. Dr.- Ing. 7500 Karlsruhe Issel | Verfahren und Vorrichtung zur Bestimmung von Konzentrationsprofilen flüssiger oder gasförmiger Stoffe längs einer Strecke |
| DE2453215A1 (de) * | 1974-11-09 | 1976-05-13 | Issel Wolfgang | Digital-elektrisches leckmelde- und leckortungssystem |
| DE2725224A1 (de) * | 1977-06-03 | 1978-12-14 | Herbert Friedrich Ernst I Baum | Verfahren zur ununterbrochenen ueberwachung von unter druck stehenden rohrfernleitungen |
| SU806987A1 (ru) | 1979-05-29 | 1981-02-23 | Всесоюзный Научно-Исследовательскийи Проектно-Конструкторский Институтпо Трубопроводным Контейнерным Сис-Temam "Вниипитранспрогресс" | Устройство дл обнаружени местаТЕчи B ТРубОпРОВОдЕ |
| DE8011887U1 (de) * | 1980-04-30 | 1980-07-31 | Kraftwerk Union Ag, 4330 Muelheim | Leckerkennungsvorrichtung fuer rohrleitungen und rohrleitungsverbindungen |
| EP0175219B1 (de) * | 1984-09-19 | 1988-05-11 | Wolfgang Dr.-Ing. Issel | Hohle Leitung zur Anwendung bei der Bestimmung von Konzentrationsprofilen flüssiger oder gasförmiger Stoffe |
| AT388430B (de) * | 1987-05-06 | 1989-06-26 | Scheuermann Herbert Dipl Ing | Vorrichtung zur feststellung und ortung von leckstellen in einer ein feuchtes medium fuehrenden rohrleitung |
| SU1642190A1 (ru) * | 1988-11-10 | 1991-04-15 | Вильнюсское Производственное Управление Газификации | Способ обнаружени утечки газа из газопровода, наход щегос в грунте |
| AU2150592A (en) * | 1991-06-26 | 1993-01-25 | Dipl.-Ing. Wrede & Niedecken Verwaltung Gmbh | Gas and/or liquid tubular duct |
| DK0533960T3 (da) * | 1991-07-29 | 1995-01-30 | Brandes Bernd | Fremgangsmåde til konstatering af utætheder i ledningsrør for flydende medier |
| US5203202A (en) * | 1992-02-25 | 1993-04-20 | W. L. Gore & Associates, Inc. | Apparatus for detecting leaks in circuits |
| DE4242806A1 (de) * | 1992-12-17 | 1994-06-23 | Siemens Ag | Sensorschlauch |
| DE4334550A1 (de) * | 1993-10-11 | 1995-04-13 | Bayer Ag | Vorrichtung zur Detektion von Leckagen an frei verlegbaren, oberirdischen Rohrleitungen |
| JPH07280690A (ja) * | 1994-04-13 | 1995-10-27 | Mitsubishi Cable Ind Ltd | 低分子量有機液体の漏液検知システム |
| UA47461C2 (uk) * | 1996-03-26 | 2002-07-15 | Сіменс Акцієнгезельшафт | Пристрій і спосіб для виявлення витоку |
| DE19643637A1 (de) * | 1996-10-22 | 1998-04-23 | Siemens Ag | Einrichtung und Verfahren zur Leckageerkennung |
| US6967183B2 (en) * | 1998-08-27 | 2005-11-22 | Cabot Corporation | Electrocatalyst powders, methods for producing powders and devices fabricated from same |
| DE10060853C1 (de) * | 2000-12-06 | 2002-08-14 | Framatome Anp Gmbh | Sensorrohr zum Bestimmen eines Konzentrationsprofils |
| DE10116496A1 (de) * | 2001-04-03 | 2002-10-17 | Framatome Anp Gmbh | Einrichtung und Verfahren zur Erkennung und Ortung eines in die Umgebung austretenden Stoffes |
| US6865941B2 (en) * | 2001-11-21 | 2005-03-15 | Before-The-Event, Ltd. | Liquid leak detector |
| RU2246706C2 (ru) | 2002-07-16 | 2005-02-20 | Алтайский государственный университет | Датчик статического давления в зернистом слое |
| CA2416171A1 (en) | 2003-01-13 | 2004-07-13 | Pure Technologies Ltd. | Pipeline monitoring system |
-
2005
- 2005-02-22 DE DE102005007988A patent/DE102005007988A1/de not_active Withdrawn
-
2006
- 2006-02-04 DE DE502006001934T patent/DE502006001934D1/de not_active Expired - Lifetime
- 2006-02-04 WO PCT/EP2006/000994 patent/WO2006089629A1/de not_active Ceased
- 2006-02-04 RU RU2006141248/06A patent/RU2333419C1/ru not_active IP Right Cessation
- 2006-02-04 EP EP06706652A patent/EP1784602B1/de not_active Expired - Lifetime
- 2006-02-04 CA CA2570274A patent/CA2570274C/en not_active Expired - Fee Related
- 2006-02-04 AT AT06706652T patent/ATE412850T1/de not_active IP Right Cessation
-
2007
- 2007-01-03 US US11/649,387 patent/US7802465B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006089629A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US7802465B2 (en) | 2010-09-28 |
| DE102005007988A1 (de) | 2006-08-24 |
| ATE412850T1 (de) | 2008-11-15 |
| US20070119238A1 (en) | 2007-05-31 |
| RU2333419C1 (ru) | 2008-09-10 |
| WO2006089629A1 (de) | 2006-08-31 |
| CA2570274A1 (en) | 2006-08-31 |
| EP1784602B1 (de) | 2008-10-29 |
| RU2006141248A (ru) | 2008-05-27 |
| DE502006001934D1 (de) | 2008-12-11 |
| CA2570274C (en) | 2013-07-23 |
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