GB897455A - Improvements in or relating to means for shutting down nuclear reactors - Google Patents

Improvements in or relating to means for shutting down nuclear reactors

Info

Publication number
GB897455A
GB897455A GB13261/59A GB1326159A GB897455A GB 897455 A GB897455 A GB 897455A GB 13261/59 A GB13261/59 A GB 13261/59A GB 1326159 A GB1326159 A GB 1326159A GB 897455 A GB897455 A GB 897455A
Authority
GB
United Kingdom
Prior art keywords
ports
pressure
bodies
tube
drop
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
GB13261/59A
Inventor
Shirley Russell Hopkins
Rex William Mallett
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
Application filed by UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB13261/59A priority Critical patent/GB897455A/en
Priority to DEU7072A priority patent/DE1214338B/en
Priority to FR824597A priority patent/FR1259603A/en
Publication of GB897455A publication Critical patent/GB897455A/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
    • 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
    • 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
    • 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)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

897,455. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 7, 1960 [April 17, 1959], No. 13261/59. Class 39(4). In a device for shutting down a reactor by dropping a number of strongly neutronabsorbing bodies into a vertical tube in the reactor core, the bodies are normally contained in a magazine closed by a movable member connected to a retaining member by a mechanical pressure-sensitive device in such a way that the movable member can be displaced to release the bodies either by movement of the retaining member or by a dimensional change in the pressure-sensitive device caused by a change in the ambient pressure. A sleeve 29 can be lowered to align ports 20 and 32 by release of an armature 24 from an electromagnet or by expansion of a bellows 30 caused by a sudden drop in reactor coolant pressure, thus letting boron steel balls 5 drop into a tube 16. A bleed hole in the bellows allows for gradual pressure changes. The armature can act directly on the sleeve through rods 42, and a stop 43 is provided. The magazine is recharged by raising the tube 16 until the balls drop back through ports 19 and 15; these ports are in practice offset 90 degrees from ports 20, 32. Specifications 857,432 and 897,456 are referred to.
GB13261/59A 1959-04-17 1959-04-17 Improvements in or relating to means for shutting down nuclear reactors Expired GB897455A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB13261/59A GB897455A (en) 1959-04-17 1959-04-17 Improvements in or relating to means for shutting down nuclear reactors
DEU7072A DE1214338B (en) 1959-04-17 1960-04-14 Device for shutting down nuclear reactors
FR824597A FR1259603A (en) 1959-04-17 1960-04-16 Devices for shutting down nuclear reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13261/59A GB897455A (en) 1959-04-17 1959-04-17 Improvements in or relating to means for shutting down nuclear reactors

Publications (1)

Publication Number Publication Date
GB897455A true GB897455A (en) 1962-05-30

Family

ID=10019753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13261/59A Expired GB897455A (en) 1959-04-17 1959-04-17 Improvements in or relating to means for shutting down nuclear reactors

Country Status (2)

Country Link
DE (1) DE1214338B (en)
GB (1) GB897455A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073681A (en) * 1975-03-05 1978-02-14 General Atomic Company Nuclear reactor shutdown system
FR2366670A1 (en) * 1976-10-04 1978-04-28 Rockwell International Corp NUCLEAR REACTOR EQUIPPED WITH A RELIABLE AUTOMATIC SHUT-OFF SYSTEM
US4139414A (en) * 1977-06-10 1979-02-13 Combustion Engineering, Inc. Scram device having a multiplicity of neutron absorbing masses
US4770845A (en) * 1981-06-04 1988-09-13 The United States Of America As Represented By The United States Department Of Energy Self-actuating reactor shutdown system
CN109360668A (en) * 2018-11-12 2019-02-19 中国原子能科学研究院 A kind of pneumatic buckling and locking device of pool low temperature heap control rod drive mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3011218A1 (en) * 1980-03-22 1981-10-01 GHT Gesellschaft für Hochtemperaturreaktor-Technik mbH, 5060 Bergisch Gladbach BALL HEAD REACTOR WITH ADDITIONAL DEVICE FOR ABSORBER MATERIAL

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052000B (en) * 1957-12-13 1959-03-05 Siemens Ag Shutdown device for liquid-cooled nuclear reactors

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073681A (en) * 1975-03-05 1978-02-14 General Atomic Company Nuclear reactor shutdown system
FR2366670A1 (en) * 1976-10-04 1978-04-28 Rockwell International Corp NUCLEAR REACTOR EQUIPPED WITH A RELIABLE AUTOMATIC SHUT-OFF SYSTEM
US4139414A (en) * 1977-06-10 1979-02-13 Combustion Engineering, Inc. Scram device having a multiplicity of neutron absorbing masses
US4770845A (en) * 1981-06-04 1988-09-13 The United States Of America As Represented By The United States Department Of Energy Self-actuating reactor shutdown system
CN109360668A (en) * 2018-11-12 2019-02-19 中国原子能科学研究院 A kind of pneumatic buckling and locking device of pool low temperature heap control rod drive mechanism

Also Published As

Publication number Publication date
DE1214338B (en) 1966-04-14

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