GB1323076A - Leak detecting instruments - Google Patents

Leak detecting instruments

Info

Publication number
GB1323076A
GB1323076A GB1323076DA GB1323076A GB 1323076 A GB1323076 A GB 1323076A GB 1323076D A GB1323076D A GB 1323076DA GB 1323076 A GB1323076 A GB 1323076A
Authority
GB
United Kingdom
Prior art keywords
conductors
sodium
aluminium
anodized
sheet
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
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of GB1323076A publication Critical patent/GB1323076A/en
Expired legal-status Critical Current

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
    • G01M3/042—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)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

1323076 Leak detectors UNITED KINGDOM ATOMIC ENERGY AUTHORITY 18 Jan 1971 [23 Oct 1969] 52089/69 Heading G1N Leaks from apparatus containing a liquid alkali metal e.g. sodium, are detected by two or more touching aluminium conductors with anodized coatings, connected to an EMF source and an ammeter. The sodium corrodes the aluminium oxide coatings to reduce the resistance between conductors and is indicated by the increase in current. The two conductors may form a mesh, or comprise a wire on a sheet, or both may be made from anodized aluminium expanded sheet. One or two spaced conductors may be wrapped round a liquid sodium conducting pipe and covered by a leakage retaining jacket.
GB1323076D 1969-10-23 1969-10-23 Leak detecting instruments Expired GB1323076A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5208969 1969-10-23

Publications (1)

Publication Number Publication Date
GB1323076A true GB1323076A (en) 1973-07-11

Family

ID=10462601

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1323076D Expired GB1323076A (en) 1969-10-23 1969-10-23 Leak detecting instruments

Country Status (1)

Country Link
GB (1) GB1323076A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382685A1 (en) * 1977-03-04 1978-09-29 Interatom LEAK DETECTOR FOR PIPES CONTAINING LIQUID METAL
FR2425636A1 (en) * 1978-05-11 1979-12-07 Carbonisation Entr Ceram Detecting liq. metal leaks along pipes in nuclear reactors - by change in resistance of wires buried in refractory insulating fabric placed around pipe
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
EP0170174A1 (en) * 1984-07-20 1986-02-05 W.L. Gore & Associates GmbH System for detecting leaks of acid or basic products
GB2201219A (en) * 1987-02-19 1988-08-24 James Wallace Pollitt A system to detect contents release from pipes, tanks or valves
FR2770021A1 (en) * 1997-10-22 1999-04-23 Doryokuro Kakunenryo MULTI-SHEATH SODIUM LEAK DETECTION APPARATUS

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382685A1 (en) * 1977-03-04 1978-09-29 Interatom LEAK DETECTOR FOR PIPES CONTAINING LIQUID METAL
FR2425636A1 (en) * 1978-05-11 1979-12-07 Carbonisation Entr Ceram Detecting liq. metal leaks along pipes in nuclear reactors - by change in resistance of wires buried in refractory insulating fabric placed around pipe
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
EP0170174A1 (en) * 1984-07-20 1986-02-05 W.L. Gore & Associates GmbH System for detecting leaks of acid or basic products
GB2201219A (en) * 1987-02-19 1988-08-24 James Wallace Pollitt A system to detect contents release from pipes, tanks or valves
FR2770021A1 (en) * 1997-10-22 1999-04-23 Doryokuro Kakunenryo MULTI-SHEATH SODIUM LEAK DETECTION APPARATUS

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee