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GB1238143A - - Google Patents

Info

Publication number
GB1238143A
GB1238143A GB1238143DA GB1238143A GB 1238143 A GB1238143 A GB 1238143A GB 1238143D A GB1238143D A GB 1238143DA GB 1238143 A GB1238143 A GB 1238143A
Authority
GB
United Kingdom
Prior art keywords
grid
members
tubular members
sleeves
tubular
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
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 filed Critical
Publication of GB1238143A publication Critical patent/GB1238143A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G21C3/33—Supporting or hanging of elements in the bundle; Means forming part of the bundle for inserting it into, or removing it from, the core; Means for coupling adjacent bundles
    • G21C3/332—Supports for spacer grids
    • 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)
  • Fuel-Injection Apparatus (AREA)

Abstract

1,238,143. Fuel elements. WESTING- HOUSE ELECTRIC CORP. 17 April, 1970 [19 May, 1969], No. 18394/70. Heading G6C. A fuel assembly comprises an array of parallel elongated fuel elements, a plurality of elongate hollow tubular members containing control elements strategically located among the fuel elements and composed of a low neutron capture metal, e.g. Zircaloy, and grid members longitudinally spaced along the tubular members and composed of a metal, e.g. stainless steel, different from that of the tubular members, with retaining members engaging the tubular members at the grid openings, and means formed integrally with the grid, tubular or retaining members co-operating with the other members to retain the tubular members in position in the grid members. As shown in Fig. 6, each intermediate grid member is retained in position by means of two stainless steel sleeves 44a, 44b surrounding each of the tubular members 18 in the openings 32 in the grid structure. The sleeves 44a, 44b are brazed to the grid straps 30. Protrusions 46 in the tubular member 18 engage the sleeves 44a, 44b immediately above and below the sleeves, thereby retaining the grid in position. In another construction (Fig. 7) a tab extension 48 on a grid strap 30 is captured by a spot weld between the Zircaloy tube 18 and a Zircaloy clip 50, the latter being spot-welded to the tube 18 above the tab. The clip 50 is stamped to provide a base which fits through a hole punched in the tab 48, the base being spot-welded to the tube 18. The upper end structure or nozzle (12) of the fuel assembly (Fig. 1, not shown) includes an upstanding flange (17) to which leaf-springs (19) are clamped. The springs co-operate with a coreplate (not shown) to permit expansion of the fuel assembly, but prevent the assembly from being moved upwardly by hydraulic forces. Dowel pins (not shown) extend into diagonally disposed openings (25) in the flange to provide lateral support for the fuel assembly.
GB1238143D 1969-05-19 1970-04-17 Expired GB1238143A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82588969A 1969-05-19 1969-05-19

Publications (1)

Publication Number Publication Date
GB1238143A true GB1238143A (en) 1971-07-07

Family

ID=25245155

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1238143D Expired GB1238143A (en) 1969-05-19 1970-04-17

Country Status (9)

Country Link
AT (1) AT310312B (en)
BE (1) BE750552A (en)
CH (1) CH515585A (en)
DE (1) DE2023587C3 (en)
ES (1) ES379312A1 (en)
FR (1) FR2049108B1 (en)
GB (1) GB1238143A (en)
NL (1) NL171106C (en)
SE (1) SE343708B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048343A1 (en) * 1980-09-12 1982-03-31 Westinghouse Electric Corporation Reconstitutable fuel assembly for a nuclear reactor
CN109935359A (en) * 2017-12-19 2019-06-25 中国原子能科学研究院 A fuel assembly skeleton connection structure and fuel assembly skeleton

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT961083B (en) * 1971-12-28 1973-12-10 Cnen PROCEDURE FOR OBTAINING CYLINDRICAL SYMMETRY BI-POLYMETAL BODIES ITS COMPONENT METALS ARE JOINED TOGETHER BY METALLURGICAL BOND
US3920516A (en) * 1972-09-25 1975-11-18 Westinghouse Electric Corp Nuclear reactor fuel assembly arrangement
DE2542757C3 (en) * 1975-09-25 1978-08-31 Babcock-Brown Boveri Reaktor Gmbh, 6800 Mannheim Device for absorbing the axial forces occurring on the fuel assemblies during operation of a nuclear reactor
US4081324A (en) * 1976-06-17 1978-03-28 Exxon Nuclear Company Inc. Spacer capture rod to spacer grid attachment device
FR2390804A1 (en) * 1977-05-13 1978-12-08 Commissariat Energie Atomique NUCLEAR FUEL ASSEMBLY
FR2397042A1 (en) * 1977-07-07 1979-02-02 Commissariat Energie Atomique SPACING GRID FOR A BUNDLE OF COMBUSTIBLE PENCILS IN A NUCLEAR REACTOR ASSEMBLY
US4294660A (en) * 1977-10-07 1981-10-13 The Babcock & Wilcox Company Spacer assembly retainer arrangement
FR2420826A1 (en) * 1978-03-22 1979-10-19 Commissariat Energie Atomique REMOTELY MOUNTABLE AND REMOVABLE FUEL ASSEMBLY FOR NUCLEAR REACTOR AND CORRESPONDING TOOLS
FR2459534A1 (en) * 1979-06-14 1981-01-09 Commissariat Energie Atomique METHOD AND DEVICE FOR FIXING A GUIDE PIPE OF A NUCLEAR COMBUSTIBLE ASSEMBLY TO THE END PLATES OF SAID ASSEMBLY
FR2465295A1 (en) * 1979-09-06 1981-03-20 Commissariat Energie Atomique ANTI-ENVOL DEVICE FOR NUCLEAR REACTOR COMBUSTIBLE ELEMENT
FR2479536A1 (en) * 1980-03-26 1981-10-02 Commissariat Energie Atomique IMPROVEMENTS IN GUIDE TUBES OF COMBUSTIBLE ASSEMBLIES FOR A NUCLEAR REACTOR AND METHOD FOR DISASSEMBLING THESE GUIDE TUBES
FR2520147B1 (en) * 1982-01-18 1985-10-25 Commissariat Energie Atomique END PIECE FOR FUEL ASSEMBLY OF NUCLEAR REACTORS IN WHICH THE SIDE WALLS ARE ELASTIC
FR2522866B1 (en) * 1982-03-04 1987-12-31 Commissariat Energie Atomique NUCLEAR REACTOR FUEL ASSEMBLY
FR2529704B1 (en) * 1982-07-01 1987-09-04 Commissariat Energie Atomique DEVICE FOR FASTENING A GUIDE TUBE INTO THE END PIECE OF A NUCLEAR REACTOR FUEL ASSEMBLY
FR2544538B1 (en) * 1983-04-13 1985-08-02 Fragema Framatome & Cogema ANTI-THEFT DEVICE FOR A NUCLEAR REACTOR
FR2550650B1 (en) * 1983-08-11 1985-11-08 Fragema Framatome & Cogema METHOD AND DEVICE FOR MOUNTING AND FIXING NUCLEAR FUEL ASSEMBLY GRIDS
FR2559942B1 (en) * 1984-02-22 1986-07-04 Fragema Framatome & Cogema DEVICE FOR HOLDING A NUCLEAR FUEL ASSEMBLY IN A REACTOR
DE3504522C2 (en) * 1985-02-09 1987-01-02 Brown Boveri Reaktor GmbH, 6800 Mannheim Method and device for ultrasonic testing of screws for incipient cracks
FR2605448B1 (en) * 1986-10-21 1989-01-13 Framatome Sa ANTI-THEFT DEVICE FOR NUCLEAR FUEL ASSEMBLY

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1492388A (en) * 1965-08-10 1967-08-18 Atomic Energy Authority Uk Grid for nuclear reactor fuel assemblies
FR1448501A (en) * 1965-09-28 1966-01-28 Atomic Energy Authority Uk Set of fuel cartridges for nuclear reactors
FR1536257A (en) * 1966-05-25 1968-08-16 Westinghouse Electric Corp Fuel assemblies for nuclear reactors
US3475273A (en) * 1967-12-05 1969-10-28 Combustion Eng Nuclear reactor fuel assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0048343A1 (en) * 1980-09-12 1982-03-31 Westinghouse Electric Corporation Reconstitutable fuel assembly for a nuclear reactor
CN109935359A (en) * 2017-12-19 2019-06-25 中国原子能科学研究院 A fuel assembly skeleton connection structure and fuel assembly skeleton

Also Published As

Publication number Publication date
ES379312A1 (en) 1973-04-01
NL171106C (en) 1983-02-01
NL7007054A (en) 1970-11-23
NL171106B (en) 1982-09-01
DE2023587C3 (en) 1979-04-12
AT310312B (en) 1973-09-25
CH515585A (en) 1971-11-15
DE2023587B2 (en) 1978-08-03
AU1390370A (en) 1971-10-21
BE750552A (en) 1970-11-19
FR2049108B1 (en) 1974-03-01
SE343708B (en) 1972-03-13
DE2023587A1 (en) 1970-11-26
FR2049108A1 (en) 1971-03-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee