JPS57144432A - Leakage detector for sodium - Google Patents

Leakage detector for sodium

Info

Publication number
JPS57144432A
JPS57144432A JP56029417A JP2941781A JPS57144432A JP S57144432 A JPS57144432 A JP S57144432A JP 56029417 A JP56029417 A JP 56029417A JP 2941781 A JP2941781 A JP 2941781A JP S57144432 A JPS57144432 A JP S57144432A
Authority
JP
Japan
Prior art keywords
detector
sodium
leakage
valve
time
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.)
Pending
Application number
JP56029417A
Other languages
Japanese (ja)
Inventor
Nozomi Sato
Akio Tsunoda
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.)
Toshiba Corp
Nippon Genshiryoku Jigyo KK
Nippon Atomic Industry Group Co Ltd
Original Assignee
Toshiba Corp
Nippon Genshiryoku Jigyo KK
Tokyo Shibaura Electric Co Ltd
Nippon Atomic Industry Group Co Ltd
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 Toshiba Corp, Nippon Genshiryoku Jigyo KK, Tokyo Shibaura Electric Co Ltd, Nippon Atomic Industry Group Co Ltd filed Critical Toshiba Corp
Priority to JP56029417A priority Critical patent/JPS57144432A/en
Publication of JPS57144432A publication Critical patent/JPS57144432A/en
Pending 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
    • G01M3/20—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
    • G01M3/226—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 for containers, e.g. radiators
    • G01M3/228—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 for containers, e.g. radiators for radiators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE:To perform detection which is less in malfunction and is highly reliable over a long time by performing supervising with a radiation ionization detector at all time, and performing rechecking of leakage with a semiconductor type detector. CONSTITUTION:In the stage of ordinary operation, the 3rd valve 8 is opened, and the 1st, 2nd valves 2, 5 are closed to flow a sampling gas through an inflow pipe 1 then through a bypass pipe 9, the 3rd valve 8, a bypass valve 9 and a connection pipe 6. The leakage of sodium is detected with a radiation ionization detector 7. At the point of the time when the detector 7 responds and its output attains an output B by exceeding the set value A, the 3rd valve 8 is closed, the valves 2, 5 are opened, and the detector 7 and a semiconductor type detector 4 are operated simultaneously. When the leakage of sodium is checked with the detector 4 as well, the signal for the leakage of sodium is emitted, whereby the malfunction for suspended solids other than sodium is also checked.
JP56029417A 1981-03-03 1981-03-03 Leakage detector for sodium Pending JPS57144432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56029417A JPS57144432A (en) 1981-03-03 1981-03-03 Leakage detector for sodium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56029417A JPS57144432A (en) 1981-03-03 1981-03-03 Leakage detector for sodium

Publications (1)

Publication Number Publication Date
JPS57144432A true JPS57144432A (en) 1982-09-07

Family

ID=12275546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56029417A Pending JPS57144432A (en) 1981-03-03 1981-03-03 Leakage detector for sodium

Country Status (1)

Country Link
JP (1) JPS57144432A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015141133A (en) * 2014-01-29 2015-08-03 大阪瓦斯株式会社 gas sampling device
JP2015141132A (en) * 2014-01-29 2015-08-03 大阪瓦斯株式会社 gas sampling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015141133A (en) * 2014-01-29 2015-08-03 大阪瓦斯株式会社 gas sampling device
JP2015141132A (en) * 2014-01-29 2015-08-03 大阪瓦斯株式会社 gas sampling device

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