GB1221690A - Improvements relating to suspension means for the control rods of nuclear reactors - Google Patents

Improvements relating to suspension means for the control rods of nuclear reactors

Info

Publication number
GB1221690A
GB1221690A GB50013/68A GB5001368A GB1221690A GB 1221690 A GB1221690 A GB 1221690A GB 50013/68 A GB50013/68 A GB 50013/68A GB 5001368 A GB5001368 A GB 5001368A GB 1221690 A GB1221690 A GB 1221690A
Authority
GB
United Kingdom
Prior art keywords
control rod
chain
sprocket
locker
plunger
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
GB50013/68A
Inventor
John Raymond Dean
William Henry Graham Wilcox
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.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and Co 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 A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Priority to GB50013/68A priority Critical patent/GB1221690A/en
Publication of GB1221690A publication Critical patent/GB1221690A/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
    • G21C7/12—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)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

1,221,690. Controlling reactors. A. REYROLLE & CO. Ltd. 22 Jan., 1970 [22 Oct., 1968], No. 50013/68. Heading G6C. A control rod suspension arrangement comprises an open-link chain 16 attached at its lower end 20 to a control rod 19, and passing up and around a motor-driven driving sprocket 14 and thence hanging down into a chain locker 10 on the floor of which the excess length of chain 16 is deposited. The extreme end 22 of the portion of the chain 16 in the locker 10 is attached to a spring buffer 21 comprising a plunger slidably mounted in guides in a surrounding cylinder and having a powerful compression spring acting downwardly on a head attached to the lower end of the plunger. The spring, which may be pre-compressed, surrounds the plunger in the cylinder and its upper end bears against an abutment shoulder in the top of the cylinder. The surplus chain 16 piles up on the floor of the locker 10 as the control rod is raised and is picked up cleanly from it as the control rod is lowered. Should a rapid emergency insertion of the control rod be required, a clutch (not shown) is released in the motor drive to the sprocket 14 to allow the latter to rotate freely so that the control rod will descend under gravity, pulling the chain 16 over the sprocket 14, until the control rod reaches its fully inserted position, at which stage the part of the chain approaching the sprocket 14 becomes taut and the buffer 21 cushions the shock to the control rod.
GB50013/68A 1968-10-22 1968-10-22 Improvements relating to suspension means for the control rods of nuclear reactors Expired GB1221690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB50013/68A GB1221690A (en) 1968-10-22 1968-10-22 Improvements relating to suspension means for the control rods of nuclear reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50013/68A GB1221690A (en) 1968-10-22 1968-10-22 Improvements relating to suspension means for the control rods of nuclear reactors

Publications (1)

Publication Number Publication Date
GB1221690A true GB1221690A (en) 1971-02-03

Family

ID=10454326

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50013/68A Expired GB1221690A (en) 1968-10-22 1968-10-22 Improvements relating to suspension means for the control rods of nuclear reactors

Country Status (1)

Country Link
GB (1) GB1221690A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2232819A2 (en) * 1972-06-29 1975-01-03 Activite Atom Avance
US4219384A (en) * 1976-11-06 1980-08-26 Hochtemperatur-Reaktorbau Gmbh Driving apparatus for an absorber rod

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2232819A2 (en) * 1972-06-29 1975-01-03 Activite Atom Avance
US4219384A (en) * 1976-11-06 1980-08-26 Hochtemperatur-Reaktorbau Gmbh Driving apparatus for an absorber rod

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