JPS5684520A - Water-level detector of nuclear reactor - Google Patents

Water-level detector of nuclear reactor

Info

Publication number
JPS5684520A
JPS5684520A JP16190479A JP16190479A JPS5684520A JP S5684520 A JPS5684520 A JP S5684520A JP 16190479 A JP16190479 A JP 16190479A JP 16190479 A JP16190479 A JP 16190479A JP S5684520 A JPS5684520 A JP S5684520A
Authority
JP
Japan
Prior art keywords
temperature
water
metal pipe
container
water level
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
JP16190479A
Other languages
Japanese (ja)
Inventor
Katsuyuki Ara
Seiji Yamada
Kazuo Kobayashi
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.)
SUKEGAWA DENKI KOGYO KK
Sukegawa Electric Co Ltd
Japan Atomic Energy Agency
Original Assignee
SUKEGAWA DENKI KOGYO KK
Japan Atomic Energy Research Institute
Sukegawa 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 SUKEGAWA DENKI KOGYO KK, Japan Atomic Energy Research Institute, Sukegawa Electric Co Ltd filed Critical SUKEGAWA DENKI KOGYO KK
Priority to JP16190479A priority Critical patent/JPS5684520A/en
Publication of JPS5684520A publication Critical patent/JPS5684520A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

PURPOSE: To obtain the water-level detector which is not influenced by temperature, pressure, velocity of flow of coolant, etc. by providing a heat-generating body inside a metal pipe installed in the axial direction of the container of the nuclear reactor and thereby detecting the change in temperature in the axial direction of the metal pipe.
CONSTITUTION: The metal pipe 7 is inserted into the container 6 of the nuclear reactor and an electric heater 8 supplied with current by a power source 18 and temperature sensors 9W16 formed of thermocouples numbering (m) are arranged inside the pipe, while each temperature sensor is connected to a device 19 for processing a signal from the thermocouples and judging the water level. The metal pipe heated by the heater 8 is cooled down nearly to the temperature of water at its part in the water because of good heat conduction from the surface of metal, while it retains the temperature close to that of the heater at its part in the air because of bad heat conduction. Accordingly, the distribution of temperature of the metal pipe in the axial direction thereof changes largely at a position corresponding to the water level 20 inside the container as shown by a solid line 21 in the figure. Therefore, the water level in the container 6 is detected by detecting the point by means of the device 19 for processing the signal from the thermocouples and judging the water level.
COPYRIGHT: (C)1981,JPO&Japio
JP16190479A 1979-12-13 1979-12-13 Water-level detector of nuclear reactor Pending JPS5684520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16190479A JPS5684520A (en) 1979-12-13 1979-12-13 Water-level detector of nuclear reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16190479A JPS5684520A (en) 1979-12-13 1979-12-13 Water-level detector of nuclear reactor

Publications (1)

Publication Number Publication Date
JPS5684520A true JPS5684520A (en) 1981-07-09

Family

ID=15744220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16190479A Pending JPS5684520A (en) 1979-12-13 1979-12-13 Water-level detector of nuclear reactor

Country Status (1)

Country Link
JP (1) JPS5684520A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997008518A1 (en) * 1995-08-30 1997-03-06 Hitachi, Ltd. Level gauge using superconductive sensor wire
JP2013040822A (en) * 2011-08-12 2013-02-28 Toshiba Corp Water level measuring apparatus
JP2013104750A (en) * 2011-11-11 2013-05-30 Toshiba Corp Alternative measurement device, alternative measurement system, and alternative measurement method
JP2013104675A (en) * 2011-11-10 2013-05-30 Toshiba Corp Device, method and program for detecting water level of spent fuel storage pool
JP2013124883A (en) * 2011-12-13 2013-06-24 Hitachi Ltd Reactor water level gauge
JP2014055945A (en) * 2012-09-11 2014-03-27 Ge-Hitachi Nuclear Energy Americas Llc Method and system for measuring temperature and liquid level of spent fuel pool without using external power

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997008518A1 (en) * 1995-08-30 1997-03-06 Hitachi, Ltd. Level gauge using superconductive sensor wire
JP2013040822A (en) * 2011-08-12 2013-02-28 Toshiba Corp Water level measuring apparatus
JP2013104675A (en) * 2011-11-10 2013-05-30 Toshiba Corp Device, method and program for detecting water level of spent fuel storage pool
JP2013104750A (en) * 2011-11-11 2013-05-30 Toshiba Corp Alternative measurement device, alternative measurement system, and alternative measurement method
JP2013124883A (en) * 2011-12-13 2013-06-24 Hitachi Ltd Reactor water level gauge
JP2014055945A (en) * 2012-09-11 2014-03-27 Ge-Hitachi Nuclear Energy Americas Llc Method and system for measuring temperature and liquid level of spent fuel pool without using external power

Similar Documents

Publication Publication Date Title
JPS5684520A (en) Water-level detector of nuclear reactor
JPS57158522A (en) Detecting apparatus of water level of pressure vessel of nuclear reactor
SE8604631L (en) FORDONSVERMARE
JPS57131027A (en) Black body furnace
CA2071363A1 (en) System for providing early warning of potential water induction events and enabling rapid steam turbine restarts
JPS5555222A (en) Liquid level detector
JPS5555216A (en) Steam flow rate detector
JPS5471679A (en) Thermal resistance measuring device
JPS5673320A (en) Water level detecting device
JPS5637518A (en) Water level detector within nuclear reactor
JPS5760362A (en) Toner image fixing device
JPS57165715A (en) Detector for fluid
JPS5742846A (en) Zirconia oxygen sensor
JPS5582225A (en) Water boiler
JPS55117673A (en) Thermal recording device
JPS55103466A (en) Semiconductor device for flow speed electric conversion
JPS54133201A (en) Water leakage detection method for feed water heater
JPS56114718A (en) Liquid level indicator
JPS5627627A (en) Agitation detection system in bath warming
JPS5767850A (en) Detector of gas and smoke
KR840002799Y1 (en) Temperature testing apparatus of integrating calorimeter
JPS5743198A (en) Abnormal condition supervising device in heat exchanger unit
JPS5648554A (en) Automatic coombs test unit
KR950001966A (en) Wafer temperature measuring method and apparatus
JPS57141514A (en) Water level measuring device