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GB1159971A - Improvements in Nuclear Fuel Elements - Google Patents

Improvements in Nuclear Fuel Elements

Info

Publication number
GB1159971A
GB1159971A GB28231/65A GB2823165A GB1159971A GB 1159971 A GB1159971 A GB 1159971A GB 28231/65 A GB28231/65 A GB 28231/65A GB 2823165 A GB2823165 A GB 2823165A GB 1159971 A GB1159971 A GB 1159971A
Authority
GB
United Kingdom
Prior art keywords
fuel element
rod
grab
body portion
piece
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
GB28231/65A
Inventor
Alfred James Perrin
Stafford David Ian Reimers
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.)
Babcock International Ltd
Original Assignee
Babcock and Wilcox 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 Babcock and Wilcox Ltd filed Critical Babcock and Wilcox Ltd
Priority to GB28231/65A priority Critical patent/GB1159971A/en
Publication of GB1159971A publication Critical patent/GB1159971A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/02—Fuel elements
    • G21C3/04—Constructional details
    • G21C3/06—Casings; Jackets
    • G21C3/12—Means forming part of the element for locating it within the reactor core
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/02—Details of handling arrangements
    • G21C19/10—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements
    • G21C19/105—Lifting devices or pulling devices adapted for co-operation with fuel elements or with control elements with grasping or spreading coupling elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/02—Details
    • G21C5/06—Means for locating or supporting fuel elements
    • 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)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

1,159,971. Fuel elements. BABCOCK & WILCOX Ltd. 4 July, 1966 [2 July, 1965], No. 28231/65. Heading G6C. A fuel element comprises an upper tubular end-piece 1, a body portion 9 containing fuel pins 10, and a lower tubular end-piece 3. The end-pieces 1, 3 are located in apertures in upper and lower grids 2, 4 of the reactor core and when the fuel element is to be inserted or removed the grid 2 is first removed. The fuel element is held latched in the core by levers 5, 6 pivoted to the end-piece 3 and having thus fingers 5a, 6a maintained engaged with the underside of the grid 4 by means of a cam surface 13 on an actuator rod 12. The upper end of the rod 12 is attached to a plate 16 integral with the endpiece 1 this plate sliding on studs 17, 18 fixed to the body portion 9 and being biased by springs surrounding the studs. Thus, when the fuel element is to be removed by a grab (not shown) engaging beneath a flange 11, the endpiece 1 together with the rod 12 move upwardly relatively to the body portion 9 so that the cam surface 13 engages the latch lever ends 14 and the fingers 5a, 6a leave the grid 4 so that further upward movement of the grab removes the fuel element. In a modification (Fig. 2, not shown), the end-piece 1 is rigid with the body portion 9 and the rod 12 is connected by a spider (30) and rods (31) to a collar (32) having a step (33). When the grab engages the step (33) the rod 12 is raised to disengage the latch levers and when the step engages the flange 11 further movement of the grab causes withdrawal of the fuel element.
GB28231/65A 1965-07-02 1965-07-02 Improvements in Nuclear Fuel Elements Expired GB1159971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB28231/65A GB1159971A (en) 1965-07-02 1965-07-02 Improvements in Nuclear Fuel Elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28231/65A GB1159971A (en) 1965-07-02 1965-07-02 Improvements in Nuclear Fuel Elements

Publications (1)

Publication Number Publication Date
GB1159971A true GB1159971A (en) 1969-07-30

Family

ID=10272399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28231/65A Expired GB1159971A (en) 1965-07-02 1965-07-02 Improvements in Nuclear Fuel Elements

Country Status (1)

Country Link
GB (1) GB1159971A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2441903A1 (en) * 1978-11-13 1980-06-13 Combustion Eng NUCLEAR REACTOR FUEL BLOCK AND DEVICE FOR HOLDING DOWN SUCH A FUEL BLOCK
FR2442491A1 (en) * 1978-11-24 1980-06-20 Combustion Eng NUCLEAR FUEL BLOCK
FR2468975A1 (en) * 1979-10-30 1981-05-08 Nuclear Power Co Ltd LOCKING DEVICE, IN PARTICULAR ABSORBENT SUBASSEMBLIES, AND NUCLEAR REACTOR PROVIDED WITH SUCH A DEVICE
FR2517867A1 (en) * 1981-12-04 1983-06-10 Framatome Sa DEVICE FOR FASTENING A COMBUSTIBLE ASSEMBLY ON THE LOWER HEART SUPPORT PLATE IN A NUCLEAR REACTOR
FR2520148A1 (en) * 1982-01-18 1983-07-22 Commissariat Energie Atomique NUCLEAR REACTOR COMBUSTIBLE ASSEMBLY END PIECE COMPRISING A RIGID LEVER REMOVED ELASTICALLY
USRE31583E (en) * 1971-05-20 1984-05-08 Combustion Engineering, Inc. Fuel assembly hold-down device
US4540545A (en) * 1981-05-26 1985-09-10 Tokyo Shibaura Denki Kabushiki Kaisha Devices for securing fuel assemblies to nuclear reactor pressure vessels
US4637914A (en) * 1984-01-30 1987-01-20 Westinghouse Electric Corp. Quick release guide sleeve assembly
US4647424A (en) * 1983-11-16 1987-03-03 Westinghouse Electric Corp. Fuel assembly unlatching and handling gripper
US4707326A (en) * 1985-07-26 1987-11-17 Westinghouse Electric Corp. Arrangement and method for attaching and reattaching a top nozzle in a reconstitutable nuclear fuel assembly
US4988473A (en) * 1988-12-08 1991-01-29 Westinghouse Electric Corp. Self-latching reactivity-reducing device for use in on-site spent fuel assembly storage
GB2255223A (en) * 1991-04-18 1992-10-28 Westinghouse Electric Corp Nuclear fuel assembly top nozzle with improved peripheral hold-down assembly

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31583E (en) * 1971-05-20 1984-05-08 Combustion Engineering, Inc. Fuel assembly hold-down device
FR2441903A1 (en) * 1978-11-13 1980-06-13 Combustion Eng NUCLEAR REACTOR FUEL BLOCK AND DEVICE FOR HOLDING DOWN SUCH A FUEL BLOCK
FR2442491A1 (en) * 1978-11-24 1980-06-20 Combustion Eng NUCLEAR FUEL BLOCK
FR2468975A1 (en) * 1979-10-30 1981-05-08 Nuclear Power Co Ltd LOCKING DEVICE, IN PARTICULAR ABSORBENT SUBASSEMBLIES, AND NUCLEAR REACTOR PROVIDED WITH SUCH A DEVICE
US4476088A (en) * 1979-10-30 1984-10-09 Nuclear Power Company Limited Latching devices and nuclear reactors incorporating such latching devices
US4540545A (en) * 1981-05-26 1985-09-10 Tokyo Shibaura Denki Kabushiki Kaisha Devices for securing fuel assemblies to nuclear reactor pressure vessels
EP0081431A1 (en) * 1981-12-04 1983-06-15 Framatome Fixing device for a fuel assembly on the lower core supporting grid in a nuclear reactor
FR2517867A1 (en) * 1981-12-04 1983-06-10 Framatome Sa DEVICE FOR FASTENING A COMBUSTIBLE ASSEMBLY ON THE LOWER HEART SUPPORT PLATE IN A NUCLEAR REACTOR
US4623512A (en) * 1981-12-04 1986-11-18 Framatome & Cie. Device for fixing a fuel array to the lower core-supporting plate in a nuclear reactor
EP0084988A1 (en) * 1982-01-18 1983-08-03 Commissariat à l'Energie Atomique Nuclear reactor fuel assembly end fitting comprising a resiliently biased rigid lever
FR2520148A1 (en) * 1982-01-18 1983-07-22 Commissariat Energie Atomique NUCLEAR REACTOR COMBUSTIBLE ASSEMBLY END PIECE COMPRISING A RIGID LEVER REMOVED ELASTICALLY
US4551300A (en) * 1982-01-18 1985-11-05 Commissariat A L'energie Atomique Nuclear reactor fuel assembly end fitting
US4647424A (en) * 1983-11-16 1987-03-03 Westinghouse Electric Corp. Fuel assembly unlatching and handling gripper
US4637914A (en) * 1984-01-30 1987-01-20 Westinghouse Electric Corp. Quick release guide sleeve assembly
US4707326A (en) * 1985-07-26 1987-11-17 Westinghouse Electric Corp. Arrangement and method for attaching and reattaching a top nozzle in a reconstitutable nuclear fuel assembly
US4988473A (en) * 1988-12-08 1991-01-29 Westinghouse Electric Corp. Self-latching reactivity-reducing device for use in on-site spent fuel assembly storage
GB2255223A (en) * 1991-04-18 1992-10-28 Westinghouse Electric Corp Nuclear fuel assembly top nozzle with improved peripheral hold-down assembly
GB2255223B (en) * 1991-04-18 1994-10-19 Westinghouse Electric Corp Nuclear fuel assembly top nozzle with improved peripheral hold-down assembly

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees