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GB1283195A - Fuel element assemblies for fluid-cooled nuclear reactors - Google Patents

Fuel element assemblies for fluid-cooled nuclear reactors

Info

Publication number
GB1283195A
GB1283195A GB09781/69A GB1978169A GB1283195A GB 1283195 A GB1283195 A GB 1283195A GB 09781/69 A GB09781/69 A GB 09781/69A GB 1978169 A GB1978169 A GB 1978169A GB 1283195 A GB1283195 A GB 1283195A
Authority
GB
United Kingdom
Prior art keywords
tie bar
stringer
fuel
fuel elements
plug
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
GB09781/69A
Inventor
Michael Roger Lloyd Williams
Paul Alexander Stevens
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.)
British Nuclear Design of Construction Ltd
Original Assignee
British Nuclear Design of Construction 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 British Nuclear Design of Construction Ltd filed Critical British Nuclear Design of Construction Ltd
Priority to GB09781/69A priority Critical patent/GB1283195A/en
Priority to DE19702018324 priority patent/DE2018324A1/en
Publication of GB1283195A publication Critical patent/GB1283195A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G21C3/14—Means forming part of the element for inserting it into, or removing it from, the core; Means for coupling adjacent elements, e.g. to form a stringer
    • 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)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

1283195 Fuel elements BRITISH NUCLEAR DESIGN & CONSTRUCTION Ltd 17 April 1970 [17 April 1969] 19781/69 Heading G6C A fuel stringer comprises a column of fuel elements 3 slidably mounted on a tie bar 1, and a head unit 4 disposed above the fuel elements and having a connection with the tie bar such that, when the stringer is in position in a reactor fuel channel, the head unit 4 compressively loads the fuel elements 3 vertically against a support (20) (Fig. 2, not shown) at the bottom of the fuel channel (12) and tension in the tie bar 1 is released. The tie bar 1 extends upwardly from a carrier ring 2 which supports a column of annular fuel elements 3. The head unit 4 is slidably mounted on the tie bar 1 and comprises a sleeved neutron shield plug 5, a heat shield 6 and a standpipe shield plug 8, the latter having an enlarged head 13 which is slidably contained within a tube 14, which in turn is attached to a standpipe closure plug 15. The tie bar 1 extends into a space within the tube 14 and a compression spring 16 is connected between the upper end of the tie bar 1 and the head 13 of the shield plug 8. In operation, with the fuel stringer suspended via the standpipe closure plug 15 from a grab head 17 of a refuelling machine, the sliding joint 13, 14 is extended and the spring 16 loads the tie bar 1 in tension and thus presses the fuel elements 3 and the head unit 4 together. If, when the stringer is lowered into its fuel channel, an element snags on an obstruction in the channel, the entire weight of the stringer, less the coolant upthrust forces, will act against the snag. If, however, the snag is sustained, the weight change experienced by the grab head 17 will be detectable by a weightsensing device so that lowering of the stringer cam can be stopped. When the stringer is fully inserted into its fuel channel, the carrier ring 2 seats on the support (20) and the closure plug 15 continues to be lowered until it rests on the upper end of the tie bar 1. The plug 15 is then pressed down against the spring 16 (Fig. 2, not shown) and locked into the standpipe. This has the effect of releasing tension in the tie bar 1 and transferring the loading of the spring on to the head unit 4 and hence the fuel elements 3.
GB09781/69A 1969-04-17 1969-04-17 Fuel element assemblies for fluid-cooled nuclear reactors Expired GB1283195A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB09781/69A GB1283195A (en) 1969-04-17 1969-04-17 Fuel element assemblies for fluid-cooled nuclear reactors
DE19702018324 DE2018324A1 (en) 1969-04-17 1970-04-16 Fuel element aggregate for fluid-cooled nuclear reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB09781/69A GB1283195A (en) 1969-04-17 1969-04-17 Fuel element assemblies for fluid-cooled nuclear reactors

Publications (1)

Publication Number Publication Date
GB1283195A true GB1283195A (en) 1972-07-26

Family

ID=10135116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB09781/69A Expired GB1283195A (en) 1969-04-17 1969-04-17 Fuel element assemblies for fluid-cooled nuclear reactors

Country Status (2)

Country Link
DE (1) DE2018324A1 (en)
GB (1) GB1283195A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2120672C1 (en) * 1997-02-19 1998-10-20 Сибирский химический комбинат Nuclear reactor fuel assembly
US6327324B2 (en) * 1996-06-20 2001-12-04 Westinghouse Atom Ab Nuclear fuel assembly
RU2178595C2 (en) * 2000-03-01 2002-01-20 Федеральное государственное унитарное предприятие "Сибирский химический комбинат" Nuclear reactor fuel element
US6347130B1 (en) * 1994-12-23 2002-02-12 Westinghouse Atom Ab Fuel assembly with short fuel units
CN112243486A (en) * 2018-08-23 2021-01-19 获劳动红旗勋章和Czsr劳动勋章的水压试验设计院联合股份公司 Nuclear reactor fuel assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4914679A (en) * 1987-07-27 1990-04-03 Hitachi, Ltd. Fuel assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6347130B1 (en) * 1994-12-23 2002-02-12 Westinghouse Atom Ab Fuel assembly with short fuel units
US6327324B2 (en) * 1996-06-20 2001-12-04 Westinghouse Atom Ab Nuclear fuel assembly
RU2120672C1 (en) * 1997-02-19 1998-10-20 Сибирский химический комбинат Nuclear reactor fuel assembly
RU2178595C2 (en) * 2000-03-01 2002-01-20 Федеральное государственное унитарное предприятие "Сибирский химический комбинат" Nuclear reactor fuel element
CN112243486A (en) * 2018-08-23 2021-01-19 获劳动红旗勋章和Czsr劳动勋章的水压试验设计院联合股份公司 Nuclear reactor fuel assembly

Also Published As

Publication number Publication date
DE2018324A1 (en) 1970-12-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees