GB1355176A - Means for detecting leakage from an oil conveying conduit - Google Patents

Means for detecting leakage from an oil conveying conduit

Info

Publication number
GB1355176A
GB1355176A GB631473A GB1355176DA GB1355176A GB 1355176 A GB1355176 A GB 1355176A GB 631473 A GB631473 A GB 631473A GB 1355176D A GB1355176D A GB 1355176DA GB 1355176 A GB1355176 A GB 1355176A
Authority
GB
United Kingdom
Prior art keywords
bands
conductors
pair
conduit
gaps
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
Application number
GB631473A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NILS OESTBO AB
Original Assignee
NILS OESTBO AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NILS OESTBO AB filed Critical NILS OESTBO AB
Publication of GB1355176A publication Critical patent/GB1355176A/en
Expired legal-status Critical Current

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
    • F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
    • 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
    • G01M3/042—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid
    • G01M3/045—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by using materials which expand, contract, disintegrate, or decompose in contact with a fluid with electrical detection means
    • 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)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Pipeline Systems (AREA)

Abstract

1355176 Detecting leaks in conduits NILS ÍSTBO A B 8 Feb 1973 6314/73 Heading G15 A leak detector for an oil conveying conduit comprises two conductors 18, 19 mounted along juxtaposed edges of two parallel bands 14, 15 which are made of a material which swells on contact with oil to close the gap between the conductors 18, 19. In Fig. 1, four bands 13-16 are held by a support 22 around conduit 10, and three pairs of conductors 18, 19 are provided in the gaps between the bands, the gaps being filled with pulverulent material. In Fig. 3, a pair of bands 13, 14 are wound in a spiral around the pipe, the outer edge of each band being bonded to the pipe. Alternatively a series of bands may be wound in a spiral to completely cover the conduit. When a leak occurs and a contact between a pair of conductors 18, 19 is made, a thyristor device 27 actuates a lamp 28 and an accoustic warning device 29, a green light 30 being then extinguished. A resistance measuring device 30 may be connected to each end of the pair of conductors in turn whereby the point of leakage may be located. The bands may be of a natural or artificial rubber such as polyisoprene, polybutadieneorethylene-propylene.
GB631473A 1973-02-08 1973-02-08 Means for detecting leakage from an oil conveying conduit Expired GB1355176A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB631473 1973-02-08
DE2306465A DE2306465A1 (en) 1973-02-08 1973-02-09 DEVICE FOR DETECTING THE EXISTENCE AND LOCATION OF LEAKS IN OIL PIPES

Publications (1)

Publication Number Publication Date
GB1355176A true GB1355176A (en) 1974-06-05

Family

ID=25764672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB631473A Expired GB1355176A (en) 1973-02-08 1973-02-08 Means for detecting leakage from an oil conveying conduit

Country Status (2)

Country Link
DE (1) DE2306465A1 (en)
GB (1) GB1355176A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441841A2 (en) * 1978-11-14 1980-06-13 Carbonisation Entr Ceram Composite material for detecting liq. metal leaks - comprises fabric of mineral threads with insulated electrically conducting wires wrapped around warp threads at regular intervals
GB2138956A (en) * 1983-04-27 1984-10-31 Dunlop Ltd Improvements in or relating to leak detectors
US4576037A (en) * 1983-04-27 1986-03-18 Dunlop Limited Leak detectors
WO1986007483A1 (en) * 1985-06-12 1986-12-18 Raychem Corporation Hydrocarbon sensor
GB2201219A (en) * 1987-02-19 1988-08-24 James Wallace Pollitt A system to detect contents release from pipes, tanks or valves
US4862146A (en) * 1987-03-27 1989-08-29 Raychem Corporation Detection apparatus
US4926165A (en) * 1985-10-15 1990-05-15 Raychem Corporation Devices for detecting and obtaining information about an event
US4926129A (en) * 1988-10-12 1990-05-15 Raychem Corporation Sensor assembly for detecting multiple events and distinguishing between them
US5172730A (en) * 1989-07-03 1992-12-22 Insituform Of North American, Inc. Two-wall leakage detection system for a pipe
WO1994028372A1 (en) * 1993-05-25 1994-12-08 Rosemount Inc. Organic chemical sensor
US5382909A (en) 1983-06-30 1995-01-17 Raychem Corporation Method for detecting and obtaining information about changes in variables
US20130211633A1 (en) * 2010-10-13 2013-08-15 Katholieke Universiteit Leuven Sensor for detecting hydraulic liquids in aircraft
CN104455758A (en) * 2014-11-28 2015-03-25 王咸维 Intelligent anti-seepage automatic early warning pipe
WO2022056824A1 (en) * 2020-09-18 2022-03-24 Abb Schweiz Ag Apparatus for determining oil leakage and robot using the apparatus

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553789C2 (en) * 1975-11-29 1985-08-29 Hochtemperatur-Reaktorbau GmbH, 4600 Dortmund Device for the detection and localization of leaks in a pipeline through which a hot fluid flows
DE2640161A1 (en) * 1976-09-07 1978-03-16 Bernd Brandes Hot fluid medium cable with sensor wire - has sensor wire with threaded beads for spacing on inner tube
DE2709468A1 (en) * 1977-03-04 1978-09-07 Interatom LEAK DETECTION FOR LIQUID METAL PIPING
DE3140804A1 (en) * 1981-10-14 1983-04-21 kabelmetal electro GmbH, 3000 Hannover Flexible conduit
DE4416953C1 (en) * 1994-05-13 1995-06-29 Continental Ag Chemical=proof safety hose
DE10044039A1 (en) * 2000-09-07 2002-03-21 Brugg Rohrsysteme Gmbh Flexible pipeline comprises two concentric pipes with fleece layer in interspace between same and made of material to swell up when moisture enters
CN106764462A (en) * 2017-01-19 2017-05-31 常州黄河机电工程有限公司 Intelligent conduit pipeline water leakage detection warning protection device and its method of work

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441841A2 (en) * 1978-11-14 1980-06-13 Carbonisation Entr Ceram Composite material for detecting liq. metal leaks - comprises fabric of mineral threads with insulated electrically conducting wires wrapped around warp threads at regular intervals
GB2138956A (en) * 1983-04-27 1984-10-31 Dunlop Ltd Improvements in or relating to leak detectors
US4576037A (en) * 1983-04-27 1986-03-18 Dunlop Limited Leak detectors
US5382909A (en) 1983-06-30 1995-01-17 Raychem Corporation Method for detecting and obtaining information about changes in variables
US5101657A (en) * 1985-06-12 1992-04-07 Raychem Corporation Sensors for detecting and locating fluids
US5235286A (en) 1985-06-12 1993-08-10 Raychem Corporation Method for detecting and obtaining information about changers in variables
WO1986007483A1 (en) * 1985-06-12 1986-12-18 Raychem Corporation Hydrocarbon sensor
US4926165A (en) * 1985-10-15 1990-05-15 Raychem Corporation Devices for detecting and obtaining information about an event
GB2201219A (en) * 1987-02-19 1988-08-24 James Wallace Pollitt A system to detect contents release from pipes, tanks or valves
US4862146A (en) * 1987-03-27 1989-08-29 Raychem Corporation Detection apparatus
US4926129A (en) * 1988-10-12 1990-05-15 Raychem Corporation Sensor assembly for detecting multiple events and distinguishing between them
US5172730A (en) * 1989-07-03 1992-12-22 Insituform Of North American, Inc. Two-wall leakage detection system for a pipe
WO1994028372A1 (en) * 1993-05-25 1994-12-08 Rosemount Inc. Organic chemical sensor
US5482678A (en) * 1993-05-25 1996-01-09 Rosemount Inc. Organic chemical sensor
US20130211633A1 (en) * 2010-10-13 2013-08-15 Katholieke Universiteit Leuven Sensor for detecting hydraulic liquids in aircraft
CN104455758A (en) * 2014-11-28 2015-03-25 王咸维 Intelligent anti-seepage automatic early warning pipe
WO2022056824A1 (en) * 2020-09-18 2022-03-24 Abb Schweiz Ag Apparatus for determining oil leakage and robot using the apparatus

Also Published As

Publication number Publication date
DE2306465A1 (en) 1974-08-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee