DE202005000935U1 - Fuel element, for pressurized-water nuclear reactor, comprises plurality of fuel rods held in cells of distancing units whose inner zone has stiffening elements - Google Patents

Fuel element, for pressurized-water nuclear reactor, comprises plurality of fuel rods held in cells of distancing units whose inner zone has stiffening elements Download PDF

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Publication number
DE202005000935U1
DE202005000935U1 DE200520000935 DE202005000935U DE202005000935U1 DE 202005000935 U1 DE202005000935 U1 DE 202005000935U1 DE 200520000935 DE200520000935 DE 200520000935 DE 202005000935 U DE202005000935 U DE 202005000935U DE 202005000935 U1 DE202005000935 U1 DE 202005000935U1
Authority
DE
Germany
Prior art keywords
inner zone
pressurized
cells
nuclear reactor
whose inner
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 - Lifetime
Application number
DE200520000935
Other languages
German (de)
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.)
Areva GmbH
Original Assignee
Framatome ANP GmbH
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 Framatome ANP GmbH filed Critical Framatome ANP GmbH
Priority to DE200520000935 priority Critical patent/DE202005000935U1/en
Publication of DE202005000935U1 publication Critical patent/DE202005000935U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G21C3/16—Details of the construction within the casing
    • G21C3/18—Internal spacers or other non-active material within the casing, e.g. compensating for expansion of fuel rods or for compensating excess reactivity
    • 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
    • G21C3/322—Means to influence the coolant flow through or around the bundles
    • 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
    • G21C3/326—Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different composition; comprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
    • 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
    • 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
    • G21C3/34—Spacer grids
    • G21C3/352—Spacer grids formed of assembled intersecting strips
    • 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
    • G21C3/34—Spacer grids
    • G21C3/356—Spacer grids being provided with fuel element supporting members
    • 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
    • G21C7/10—Construction of control 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

The fuel element for a pressurized-water nuclear reactor comprises fuel rods held in cells of distancing units (4) whose inner zone (18) includes stiffening elements (20). This ensures that the distancing units are deformed only within areas beyond the inner zone when lateral forces acting on them exceed a specified limit.
DE200520000935 2005-01-21 2005-01-21 Fuel element, for pressurized-water nuclear reactor, comprises plurality of fuel rods held in cells of distancing units whose inner zone has stiffening elements Expired - Lifetime DE202005000935U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200520000935 DE202005000935U1 (en) 2005-01-21 2005-01-21 Fuel element, for pressurized-water nuclear reactor, comprises plurality of fuel rods held in cells of distancing units whose inner zone has stiffening elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520000935 DE202005000935U1 (en) 2005-01-21 2005-01-21 Fuel element, for pressurized-water nuclear reactor, comprises plurality of fuel rods held in cells of distancing units whose inner zone has stiffening elements

Publications (1)

Publication Number Publication Date
DE202005000935U1 true DE202005000935U1 (en) 2005-03-31

Family

ID=34400268

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200520000935 Expired - Lifetime DE202005000935U1 (en) 2005-01-21 2005-01-21 Fuel element, for pressurized-water nuclear reactor, comprises plurality of fuel rods held in cells of distancing units whose inner zone has stiffening elements

Country Status (1)

Country Link
DE (1) DE202005000935U1 (en)

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20050504

R081 Change of applicant/patentee

Owner name: AREVA NP GMBH, DE

Free format text: FORMER OWNER: FRAMATOME ANP GMBH, 91058 ERLANGEN, DE

Effective date: 20070301

R156 Lapse of ip right after 3 years

Effective date: 20080801