JPS6443797A - Nuclear reactor shut-down device - Google Patents

Nuclear reactor shut-down device

Info

Publication number
JPS6443797A
JPS6443797A JP62199117A JP19911787A JPS6443797A JP S6443797 A JPS6443797 A JP S6443797A JP 62199117 A JP62199117 A JP 62199117A JP 19911787 A JP19911787 A JP 19911787A JP S6443797 A JPS6443797 A JP S6443797A
Authority
JP
Japan
Prior art keywords
absorbers
reactor
holding
neutron
members
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.)
Granted
Application number
JP62199117A
Other languages
Japanese (ja)
Other versions
JP2501338B2 (en
Inventor
Takayoshi Hikichi
Norikatsu Yokota
Shigehiro Shimoyashiki
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62199117A priority Critical patent/JP2501338B2/en
Publication of JPS6443797A publication Critical patent/JPS6443797A/en
Application granted granted Critical
Publication of JP2501338B2 publication Critical patent/JP2501338B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE:To cause the safe scram of a reactor by holding neutron absorbers formed by coating a neutron absorptive material with a nickel metal in the upper part on the outside of the reactor core by the buoyancy of a coolant and the attraction force of a magnet and decreasing the holding power thereof in the event of abnormality. CONSTITUTION:The neutron absorbers 1a are coupled by a universal joint 14 in upper and lower holding members 12, 13 having flow-holes in which the coolant flows in a control rod guide pipe 9. The absorbers 1a are hung by the joint 14 extending from the upper part of the guide pipe 9 and are kept floated in the position where the front face of an upper holding member 12 comes into contact with the rear face of a member 15 for pulling up held in the rear face position of an upper perforated partition plate 10 during the reactor operation. The absorbers 1a are risen by the buoyancy generated by covering the members 12, 13 with nickel or nickel alloy material and adjusting the weight thereof. On the other hand, the absorbers are held by the attraction force of the magnet 16 which is provided in the pulling-up member 15 and has the Curie point of a certain temp. All the members including the absorbers 1a are dropped into a core region 17 to cause the scram of the reactor if the abnormality arises in the reactor.
JP62199117A 1987-08-11 1987-08-11 Reactor shutdown device Expired - Lifetime JP2501338B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62199117A JP2501338B2 (en) 1987-08-11 1987-08-11 Reactor shutdown device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62199117A JP2501338B2 (en) 1987-08-11 1987-08-11 Reactor shutdown device

Publications (2)

Publication Number Publication Date
JPS6443797A true JPS6443797A (en) 1989-02-16
JP2501338B2 JP2501338B2 (en) 1996-05-29

Family

ID=16402418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62199117A Expired - Lifetime JP2501338B2 (en) 1987-08-11 1987-08-11 Reactor shutdown device

Country Status (1)

Country Link
JP (1) JP2501338B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006086619A3 (en) * 2005-02-10 2007-05-31 Arizona Public Service Co Control arrangement for use with nuclear fuel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101928422B1 (en) * 2017-03-03 2018-12-12 서울대학교산학협력단 Reactivity control device of nuclear reactor for boron free operating

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS618697A (en) * 1984-06-25 1986-01-16 株式会社東芝 Afterward provided stop system constitutional part for high-temperature gas furnace
JPS6212893A (en) * 1985-07-10 1987-01-21 株式会社日立製作所 Controller for nuclear reactor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS618697A (en) * 1984-06-25 1986-01-16 株式会社東芝 Afterward provided stop system constitutional part for high-temperature gas furnace
JPS6212893A (en) * 1985-07-10 1987-01-21 株式会社日立製作所 Controller for nuclear reactor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006086619A3 (en) * 2005-02-10 2007-05-31 Arizona Public Service Co Control arrangement for use with nuclear fuel

Also Published As

Publication number Publication date
JP2501338B2 (en) 1996-05-29

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