GB969089A - Nuclear reactor safety rod - Google Patents

Nuclear reactor safety rod

Info

Publication number
GB969089A
GB969089A GB22683/62A GB2268362A GB969089A GB 969089 A GB969089 A GB 969089A GB 22683/62 A GB22683/62 A GB 22683/62A GB 2268362 A GB2268362 A GB 2268362A GB 969089 A GB969089 A GB 969089A
Authority
GB
United Kingdom
Prior art keywords
coolant
reactor
rod
core
controlling
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
GB22683/62A
Inventor
John Frederick Ablitt
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
Priority to BE633586D priority Critical patent/BE633586A/xx
Priority to DENDAT1248823D priority patent/DE1248823B/de
Application filed by UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB22683/62A priority patent/GB969089A/en
Priority to FR937849A priority patent/FR1362783A/en
Publication of GB969089A publication Critical patent/GB969089A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
    • G21C9/02—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency
    • G21C9/027—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency by fast movement of a solid, e.g. pebbles
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/10—Construction of control elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/12—Means for moving control elements to desired position
    • G21C7/16—Hydraulic or pneumatic drive
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

969,089. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 24,1963 [June 13, 1962], No. 22683/62. Heading G6C. A reactivity controlling body is immersed in fluid coolant in a guide tube passing through a reactor core and is biased towards a position in the core, but is supported against the bias by coolant flow through the guide tube in a position of less controlling effect. A graphite core 11 has fuel channels 12 and one or more guide tubes 14 through which flows a coolant, such as helium. Upper and lower grids 15, 17 limit movement of the control body 16, in this case a neutron absorbing rod. Minor oscillations in coolant flow will not cause the rod 16 to move significantly, but should the flow be severely reduced or completely stopped, the rod 16 will drop on to the lower guide 17, and shut down the reactor. It is preferable to employ other control rods so that the reactor is not automatically rendered critical by commencing coolant circulation. The invention may also be used in conjunction with water or other liquid cooled reactors. Specification 907,394 is referred to.
GB22683/62A 1962-06-13 1962-06-13 Nuclear reactor safety rod Expired GB969089A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE633586D BE633586A (en) 1962-06-13
DENDAT1248823D DE1248823B (en) 1962-06-13
GB22683/62A GB969089A (en) 1962-06-13 1962-06-13 Nuclear reactor safety rod
FR937849A FR1362783A (en) 1962-06-13 1963-06-12 Nuclear reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22683/62A GB969089A (en) 1962-06-13 1962-06-13 Nuclear reactor safety rod

Publications (1)

Publication Number Publication Date
GB969089A true GB969089A (en) 1964-09-09

Family

ID=10183423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22683/62A Expired GB969089A (en) 1962-06-13 1962-06-13 Nuclear reactor safety rod

Country Status (4)

Country Link
BE (1) BE633586A (en)
DE (1) DE1248823B (en)
FR (1) FR1362783A (en)
GB (1) GB969089A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375170A (en) * 1966-07-08 1968-03-26 Ca Atomic Energy Ltd Floating absorber shutoff device for nuclear reactor
DE1539980B1 (en) * 1966-01-13 1969-10-16 Kernforschung Gmbh Ges Fuer Device for shutting down nuclear reactors
US3524924A (en) * 1968-07-16 1970-08-18 Atomic Energy Commission Backup control rod system
US6804320B2 (en) * 2002-04-12 2004-10-12 Bechtel Bwxt Idaho, Llc Automatically scramming nuclear reactor system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3044155B1 (en) * 2015-11-23 2017-11-10 Commissariat Energie Atomique PASSIVE TRIP SECURITY DEVICE FOR NUCLEAR REACTOR ON ABNORMAL PRIMARY RATE DROP

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1539980B1 (en) * 1966-01-13 1969-10-16 Kernforschung Gmbh Ges Fuer Device for shutting down nuclear reactors
US3375170A (en) * 1966-07-08 1968-03-26 Ca Atomic Energy Ltd Floating absorber shutoff device for nuclear reactor
US3524924A (en) * 1968-07-16 1970-08-18 Atomic Energy Commission Backup control rod system
US6804320B2 (en) * 2002-04-12 2004-10-12 Bechtel Bwxt Idaho, Llc Automatically scramming nuclear reactor system
US6980619B2 (en) 2002-04-12 2005-12-27 Battelle Energy Alliance, Llc Method for automatically scramming a nuclear reactor

Also Published As

Publication number Publication date
DE1248823B (en) 1900-01-01
BE633586A (en) 1900-01-01
FR1362783A (en) 1964-06-05

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