JPS57522A - Water level measuring device for nuclear reactor - Google Patents

Water level measuring device for nuclear reactor

Info

Publication number
JPS57522A
JPS57522A JP7389780A JP7389780A JPS57522A JP S57522 A JPS57522 A JP S57522A JP 7389780 A JP7389780 A JP 7389780A JP 7389780 A JP7389780 A JP 7389780A JP S57522 A JPS57522 A JP S57522A
Authority
JP
Japan
Prior art keywords
nuclear reactor
water level
guide tube
gamma
pressure vessel
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
JP7389780A
Other languages
Japanese (ja)
Inventor
Eiji Seki
Ichiro Tai
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
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7389780A priority Critical patent/JPS57522A/en
Publication of JPS57522A publication Critical patent/JPS57522A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/288—X-rays; Gamma rays or other forms of ionising radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE:To perform water level measurement of good accuracy by the simple constitution of simply providing a guide tube through a nuclear reactor pressure vessel by disposing a neutron detector and a gamma-ray detector movably in the guide tube provided along the vertical direction of the nuclear reactor vessel. CONSTITUTION:A guide tube 3 is provided along the vertical direction in a nuclear reactor pressure vessel 1 having a core 2. This guide tube 3 is so constituted that a detecting head 5 consisting of a gamma-ray detector and a neutron detector is moved vertically by a driving mechanism 7 by way of an MI cable 6 within said tube 3. If the head 5 is moved vertically by the mechanism 7, the signal output from the neutron detector decreases sharply at the time when the head 5 passes the water level, but the signal output from the gamma-ray detector hardly changes, and therefore this state is detected by the signal measuring circuit 13 and signal processing circuit 14 connected to the MIC cable 6, whereby the water level in the nuclear reactor pressure vessel is determined.
JP7389780A 1980-06-02 1980-06-02 Water level measuring device for nuclear reactor Pending JPS57522A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7389780A JPS57522A (en) 1980-06-02 1980-06-02 Water level measuring device for nuclear reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7389780A JPS57522A (en) 1980-06-02 1980-06-02 Water level measuring device for nuclear reactor

Publications (1)

Publication Number Publication Date
JPS57522A true JPS57522A (en) 1982-01-05

Family

ID=13531448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7389780A Pending JPS57522A (en) 1980-06-02 1980-06-02 Water level measuring device for nuclear reactor

Country Status (1)

Country Link
JP (1) JPS57522A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103674A (en) * 1990-12-17 1992-04-14 Massachusetts Institute Of Technology Liquid level indicator for high pressure, hostile environment
JP2013104748A (en) * 2011-11-11 2013-05-30 Toshiba Corp Water level monitoring system and water level detection method for fuel storage pool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103674A (en) * 1990-12-17 1992-04-14 Massachusetts Institute Of Technology Liquid level indicator for high pressure, hostile environment
JP2013104748A (en) * 2011-11-11 2013-05-30 Toshiba Corp Water level monitoring system and water level detection method for fuel storage pool

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