GB795565A - Improvements in or relating to control mechanisms for nuclear reactors - Google Patents

Improvements in or relating to control mechanisms for nuclear reactors

Info

Publication number
GB795565A
GB795565A GB3269/56A GB326956A GB795565A GB 795565 A GB795565 A GB 795565A GB 3269/56 A GB3269/56 A GB 3269/56A GB 326956 A GB326956 A GB 326956A GB 795565 A GB795565 A GB 795565A
Authority
GB
United Kingdom
Prior art keywords
rod
oil
relating
fall
control mechanisms
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
GB3269/56A
Inventor
George Edward Lockett
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 GB3269/56A priority Critical patent/GB795565A/en
Publication of GB795565A publication Critical patent/GB795565A/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
    • G21C7/20—Disposition of shock-absorbing devices ; Braking arrangements
    • 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
    • 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)
  • Magnetically Actuated Valves (AREA)

Abstract

795,565. Dash pots. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 28. 1957 [Feb. 2, 1956]. No. 3269/56. Class 108(3) [Also in Group XL(a)] Control elements in a nuclear reactor are positionsd by a rod 11 and releasably connected to a hollow threaded shaft 7. driven through a nut 14. When necessary an electromagnet 8 is de-energized to allow the rod 11 and controlelement carriage 10 to fall freely, its fall being checked by an oil dashpot 33 in which a tapered stem 37 gradually reduces initial free passage of oil between the cylinder 35 and chamber 36. In the later stages of damping a preset relief valve 38 opens and finally flow is restricted through an orifice 40 by a needle 39; when the valve 38 closes again.
GB3269/56A 1956-02-02 1956-02-02 Improvements in or relating to control mechanisms for nuclear reactors Expired GB795565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3269/56A GB795565A (en) 1956-02-02 1956-02-02 Improvements in or relating to control mechanisms for nuclear reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3269/56A GB795565A (en) 1956-02-02 1956-02-02 Improvements in or relating to control mechanisms for nuclear reactors

Publications (1)

Publication Number Publication Date
GB795565A true GB795565A (en) 1958-05-28

Family

ID=9755142

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3269/56A Expired GB795565A (en) 1956-02-02 1956-02-02 Improvements in or relating to control mechanisms for nuclear reactors

Country Status (1)

Country Link
GB (1) GB795565A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012542A (en) * 1958-11-07 1961-12-12 Miller George Reactor control rod operating system
DE1142423B (en) * 1958-09-08 1963-01-17 Nuclear Power Plant Company Lt Safety device in nuclear reactors
DE1154883B (en) * 1959-07-09 1963-09-26 Havilland Engine Co Ltd Actuating device for a control rod of a nuclear reactor
DE1184865B (en) * 1959-08-06 1965-01-07 Soc D Forges Et Ateliers Du Cr Device for generating linear controlled movements
FR2472248A1 (en) * 1979-12-19 1981-06-26 Framatome Sa DEVICE FOR CONTROLLING A NUCLEAR REACTOR BY VERTICAL DISPLACEMENT OF A NEUTRON ABSORBER ASSEMBLY
FR2495814A1 (en) * 1980-12-10 1982-06-11 Commissariat Energie Atomique Drive unit for control rods in nuclear reactor - where rods can be dropped into reactor core if emergency occurs, and be locked in the core even if the reactor is in capsized ship

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1142423B (en) * 1958-09-08 1963-01-17 Nuclear Power Plant Company Lt Safety device in nuclear reactors
US3012542A (en) * 1958-11-07 1961-12-12 Miller George Reactor control rod operating system
DE1154883B (en) * 1959-07-09 1963-09-26 Havilland Engine Co Ltd Actuating device for a control rod of a nuclear reactor
DE1184865B (en) * 1959-08-06 1965-01-07 Soc D Forges Et Ateliers Du Cr Device for generating linear controlled movements
FR2472248A1 (en) * 1979-12-19 1981-06-26 Framatome Sa DEVICE FOR CONTROLLING A NUCLEAR REACTOR BY VERTICAL DISPLACEMENT OF A NEUTRON ABSORBER ASSEMBLY
EP0031763A2 (en) * 1979-12-19 1981-07-08 Framatome Device for nuclear reactor control by vertical displacement of a neutron-absorbing assembly
EP0031763A3 (en) * 1979-12-19 1981-07-22 Framatome Device for nuclear reactor control by vertical displacement of a neutron-absorbing assembly
FR2495814A1 (en) * 1980-12-10 1982-06-11 Commissariat Energie Atomique Drive unit for control rods in nuclear reactor - where rods can be dropped into reactor core if emergency occurs, and be locked in the core even if the reactor is in capsized ship

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