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GB1431861A - Nuclear reactors - Google Patents

Nuclear reactors

Info

Publication number
GB1431861A
GB1431861A GB657973A GB657973A GB1431861A GB 1431861 A GB1431861 A GB 1431861A GB 657973 A GB657973 A GB 657973A GB 657973 A GB657973 A GB 657973A GB 1431861 A GB1431861 A GB 1431861A
Authority
GB
United Kingdom
Prior art keywords
weight
piles
chain
core
stopped
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
GB657973A
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 GB657973A priority Critical patent/GB1431861A/en
Priority to DE2402879A priority patent/DE2402879A1/en
Priority to IT48118/74A priority patent/IT1002839B/en
Priority to BE1005698A priority patent/BE810704A/en
Priority to FR7404159A priority patent/FR2217772B1/fr
Priority to JP49015823A priority patent/JPS49112099A/ja
Priority to LU69363A priority patent/LU69363A1/xx
Priority to NL7401768A priority patent/NL7401768A/xx
Publication of GB1431861A publication Critical patent/GB1431861A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G21C7/11—Deformable control elements, e.g. flexible, telescopic, articulated
    • 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
    • G21C7/14—Mechanical drive arrangements
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Particle Accelerators (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

1431861 Controlling nuclear reactors UNITED KINGDOM ATOMIC ENERGY AUTHORITY 16 Jan 1974 [9 Feb 1973] 6579/73 Heading G6C A nuclear reactor, e.g. a high-temperature gas-cooled reactor with downflow cooling, embodies a control system including a flexible or filamentary neutron-absorbing member 8 which, when lowered with the core 2, piles up against stop means so as to increase its neutronabsorbing effect on the reaction. As shown (Fig. 1) the chain 8, e.g. of boron steel, piles up within core channel 10 thereby simulating a bottom-entry control rod. The channel is cooled by gas throughflow from upper plenum 5 to lower plenum 6. Links of chain 8 may comprise boron powder-filled metal tubes bent to shape. As an alternative to a chain, the member may comprise articulated plates, or bodies threaded on a cable. Means for lowering and raising the member 8 comprise (Fig. 3) a stepping motor 25 which drives a wheel 9 and a storage drum 22. A weight 23 compresses a spring 34 when the member 8 is fully raised, as shown; the weight and spring provide forces additional to those provided by member 8 with its end-weight 21, for accelerating the member 8 into the core for rapid shut-down when control of motor 25 is removed. Weight 23 is stopped by shockabsorber 40 and member 8 is stopped by, and piles up against, shock-absorber 11.
GB657973A 1973-02-09 1973-02-09 Nuclear reactors Expired GB1431861A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB657973A GB1431861A (en) 1973-02-09 1973-02-09 Nuclear reactors
DE2402879A DE2402879A1 (en) 1973-02-09 1974-01-18 NUCLEAR REACTOR WITH A CONTROL SYSTEM
IT48118/74A IT1002839B (en) 1973-02-09 1974-02-04 IMPROVEMENT IN CONTROL SYSTEMS FOR NUCLEAR REACTORS
BE1005698A BE810704A (en) 1973-02-09 1974-02-07 NUCLEAR REACTOR WITH ADVANCED CONTROL SYSTEM
FR7404159A FR2217772B1 (en) 1973-02-09 1974-02-07
JP49015823A JPS49112099A (en) 1973-02-09 1974-02-07
LU69363A LU69363A1 (en) 1973-02-09 1974-02-08
NL7401768A NL7401768A (en) 1973-02-09 1974-02-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB657973A GB1431861A (en) 1973-02-09 1973-02-09 Nuclear reactors

Publications (1)

Publication Number Publication Date
GB1431861A true GB1431861A (en) 1976-04-14

Family

ID=9817074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB657973A Expired GB1431861A (en) 1973-02-09 1973-02-09 Nuclear reactors

Country Status (8)

Country Link
JP (1) JPS49112099A (en)
BE (1) BE810704A (en)
DE (1) DE2402879A1 (en)
FR (1) FR2217772B1 (en)
GB (1) GB1431861A (en)
IT (1) IT1002839B (en)
LU (1) LU69363A1 (en)
NL (1) NL7401768A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219384A (en) * 1976-11-06 1980-08-26 Hochtemperatur-Reaktorbau Gmbh Driving apparatus for an absorber rod
CN109585040A (en) * 2018-12-29 2019-04-05 中国原子能科学研究院 A kind of safe rod drive mechanism of small research heap
CN109859871A (en) * 2019-02-14 2019-06-07 哈尔滨工程大学 A nuclear reactor control device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5288394B2 (en) * 2007-12-26 2013-09-11 独立行政法人日本原子力研究開発機構 Reactor pressure vessel for modular HTGR

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4219384A (en) * 1976-11-06 1980-08-26 Hochtemperatur-Reaktorbau Gmbh Driving apparatus for an absorber rod
CN109585040A (en) * 2018-12-29 2019-04-05 中国原子能科学研究院 A kind of safe rod drive mechanism of small research heap
CN109585040B (en) * 2018-12-29 2024-05-10 中国原子能科学研究院 Safety bar driving mechanism for small research reactor
CN109859871A (en) * 2019-02-14 2019-06-07 哈尔滨工程大学 A nuclear reactor control device

Also Published As

Publication number Publication date
JPS49112099A (en) 1974-10-25
LU69363A1 (en) 1974-05-17
NL7401768A (en) 1974-08-13
BE810704A (en) 1974-05-29
FR2217772A1 (en) 1974-09-06
FR2217772B1 (en) 1977-03-04
DE2402879A1 (en) 1974-08-15
IT1002839B (en) 1976-05-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee