GB1403491A - Nuclear reacotr fuel elements - Google Patents

Nuclear reacotr fuel elements

Info

Publication number
GB1403491A
GB1403491A GB422373A GB422373A GB1403491A GB 1403491 A GB1403491 A GB 1403491A GB 422373 A GB422373 A GB 422373A GB 422373 A GB422373 A GB 422373A GB 1403491 A GB1403491 A GB 1403491A
Authority
GB
United Kingdom
Prior art keywords
fuel
fuel assemblies
projections
support
plates
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
GB422373A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1403491A publication Critical patent/GB1403491A/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
    • G21C3/30—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
    • 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)
  • Supports For Pipes And Cables (AREA)

Abstract

1403491 Fuel elements SIEMENS AG 26 Jan 1973 [29 Jan 1972] 4223/73 Heading G6C A reactor fuel element comprises a plurality of fuel assemblies each consisting of an array of fuel rods with means for maintaining the fuel rods in predetermined relative positions, the fuel assemblies being mounted end-to-end on a common support structure and the element including means attached to at least one of the fuel assemblies for damping transverse oscillation of the fuel assemblies when they are mounted on the support structure in a reactor cooling duct. As shown, the fuel assemblies comprise fuel rods 9 held between upper and lower rod-retaining plates 4a, 4b, with intermediate spacer grids (not shown) being used where necessitated by the length of the fuel rods. Resilient sliding shoes 11 attached to the plates 4b facilitate introduction of the fuel assemblies into cooling ducts and damp their transverse oscillation. The shoes 11 bear against the walls of a cooling duct (not shown). A support tube 1, to the lower end of which is secured a support plate (not shown), extends through central bores 8 formed in the plates 4a, 4b. As an alternative to the shoes 11, the individual fuel assemblies may be resiliently displaced relative to each other in the cooling duct, thereby causing them to abut the cooling duct as by providing each upper plate 4a with a pin 5 which engages in a corresponding bore 6 formed in the lower plate 4b of the adjacent fuel assembly, a spring 7 pressing the pin 5 to one side. Instead of bearing on each other under their own full weight, the fuel assemblies may be individually suspended from the support tube 1. As shown in Fig. 3, the tube 1 is provided with lateral projections 1a, 1b and the plates 4a, 4b are formed with corresponding recesses in their bores 8. The fuel assemblies can thus be pushed on to the tube 1 and rotated through 90 degrees shortly before reaching the location of these projections, whereupon they are suspended from the projections. The pins 5 engage once more into the bores 6 and so prevent relative rotation of the fuel assemblies. In this case, it is also necessary for the support plate at the lower end of the support rod to be fitted with a pin 5 in order that the lowermost fuel assembly, and consequently also the other fuel assemblies, are not able to rotate relative to the projections 1a, 1b. The support tube 1 is provided at its upper end with coupling elements adapted to cooperate with a gripper device of a reactor charging machine.
GB422373A 1972-01-29 1973-01-26 Nuclear reacotr fuel elements Expired GB1403491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2204168A DE2204168A1 (en) 1972-01-29 1972-01-29 CORE REACTOR BURNING ELEMENT

Publications (1)

Publication Number Publication Date
GB1403491A true GB1403491A (en) 1975-08-28

Family

ID=5834372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB422373A Expired GB1403491A (en) 1972-01-29 1973-01-26 Nuclear reacotr fuel elements

Country Status (5)

Country Link
AR (1) AR219890A1 (en)
DE (1) DE2204168A1 (en)
GB (1) GB1403491A (en)
IT (1) IT978511B (en)
RO (1) RO62466A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997049098A1 (en) * 1996-06-20 1997-12-24 Abb Atom Ab Nuclear fuel assembly
WO1997049093A1 (en) * 1996-06-20 1997-12-24 Abb Atom Ab Nuclear fuel assembly
US6347130B1 (en) * 1994-12-23 2002-02-12 Westinghouse Atom Ab Fuel assembly with short fuel units
US20100208862A1 (en) * 2007-10-26 2010-08-19 Denis Lorenzo Device for supporting nuclear fuel plate for a fissile bundle of a nuclear reactor of gfr type with high-temperature heat transfer gas

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117623A1 (en) * 1991-05-29 1993-02-18 Siemens Ag Fuel element esp. for thermal reactor - has sub-elements with reversible identical end plates which are rigidly connected by elongate tie-rods to fix end-plate spacing
SE508060C2 (en) 1996-06-20 1998-08-17 Asea Atom Ab Nuclear fuel cartridge comprising means for rotating steam and water around a steam conduit
SE506820C2 (en) * 1996-06-20 1998-02-16 Asea Atom Ab Fuel cartridge comprising a plurality of stacked fuel units, the fuel units comprising fuel rods of different diameters
SE506819C2 (en) * 1996-06-20 1998-02-16 Asea Atom Ab Fuel cartridge with top and bottom plate which includes side supports for supporting fuel rods. Fuel cartridge where the top and bottom plate includes mixing fins. Fuel cartridge where the top and bottom plate has a wavy cross section
SE506821C2 (en) * 1996-06-20 1998-02-16 Asea Atom Ab Fuel cartridge for a boiler water reactor comprising a plurality of water tanks arranged one after the other in the longitudinal direction of the fuel cartridge

Cited By (6)

* 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
WO1997049098A1 (en) * 1996-06-20 1997-12-24 Abb Atom Ab Nuclear fuel assembly
WO1997049093A1 (en) * 1996-06-20 1997-12-24 Abb Atom Ab Nuclear fuel assembly
US6229868B1 (en) 1996-06-20 2001-05-08 Abb Atom Ab Nuclear fuel assembly
US20100208862A1 (en) * 2007-10-26 2010-08-19 Denis Lorenzo Device for supporting nuclear fuel plate for a fissile bundle of a nuclear reactor of gfr type with high-temperature heat transfer gas
US8588361B2 (en) 2007-10-26 2013-11-19 Commissariat A L'energie Atomique Et Aux Energies Alternatives Device for supporting nuclear fuel plate for a fissile bundle of a nuclear reactor of GFR type with high-temperature heat transfer gas

Also Published As

Publication number Publication date
DE2204168A1 (en) 1973-08-02
IT978511B (en) 1974-09-20
RO62466A (en) 1978-01-15
AR219890A1 (en) 1980-09-30

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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