ES452059A1 - Nuclear reactor - Google Patents

Nuclear reactor

Info

Publication number
ES452059A1
ES452059A1 ES452059A ES452059A ES452059A1 ES 452059 A1 ES452059 A1 ES 452059A1 ES 452059 A ES452059 A ES 452059A ES 452059 A ES452059 A ES 452059A ES 452059 A1 ES452059 A1 ES 452059A1
Authority
ES
Spain
Prior art keywords
box
grid
base plate
end portion
sleeve
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
ES452059A
Other languages
Spanish (es)
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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
Priority claimed from FR7530247A external-priority patent/FR2326765A1/en
Priority claimed from FR7530244A external-priority patent/FR2326764A1/en
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of ES452059A1 publication Critical patent/ES452059A1/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
    • G21C3/36—Assemblies of plate-shaped fuel elements or coaxial tubes
    • 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
    • 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)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Abstract

Improvements in core structures for nuclear reactors, of the type that comprise a core consisting of a plurality of combustible assemblies and a plurality of four-arm cruciform mobile control bars, characterized in that they comprise a a lower grid made in solidarity with the tank, a plurality of boxes detachably fixed remotely on the grid by its lower end portion, at least each box containing a fuel assembly suspended in the upper part of the box, each box having the shape of a rectangular parallelepiped consisting of four vertical walls joined together, the box being open at its upper end portion and closed at its lower end portion by a rectangular base plate provided with a cavity, and devices for maintaining the assemblies and the boxes, and because the form of detachable cad fixing The box on the lower grid consists of a sleeve integral with the grid and which protrudes outside the upper face of the grid, the sleeve being made of a material that has a coefficient of thermal expansion greater than that of the material of which the base plate of the box, the cold outer diameter of the sleeve being less than that of the cavity of the base plate, and equal to this at the operating temperature of the reactor, so that at this temperature there is a recovery between these two parts of play by thermal expansion. (Machine-translation by Google Translate, not legally binding)
ES452059A 1975-10-02 1976-10-01 Nuclear reactor Expired ES452059A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7530247A FR2326765A1 (en) 1975-10-02 1975-10-02 Core structure for nuclear reactor - with fuel assembly casings firmly supported at operating temp. but readily dismantled for rearranging the core structure
FR7530244A FR2326764A1 (en) 1975-10-02 1975-10-02 CORE STRUCTURE FOR NUCLEAR REACTOR

Publications (1)

Publication Number Publication Date
ES452059A1 true ES452059A1 (en) 1978-04-01

Family

ID=26219088

Family Applications (1)

Application Number Title Priority Date Filing Date
ES452059A Expired ES452059A1 (en) 1975-10-02 1976-10-01 Nuclear reactor

Country Status (5)

Country Link
JP (1) JPS5945113B2 (en)
DE (1) DE2644516A1 (en)
ES (1) ES452059A1 (en)
GB (1) GB1519546A (en)
IT (1) IT1071624B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231920Y2 (en) * 1980-02-25 1987-08-15
FR2544538B1 (en) * 1983-04-13 1985-08-02 Fragema Framatome & Cogema ANTI-THEFT DEVICE FOR A NUCLEAR REACTOR
GB2221079A (en) * 1988-07-19 1990-01-24 Atomic Energy Authority Uk A method and apparatus for inhibiting thermal cycling
FR2923071B1 (en) * 2007-10-26 2009-12-25 Commissariat Energie Atomique (EN) NUCLEAR FUEL PLATE HOLDING DEVICE FOR FISSILE NUCLEAR REACTOR BEAM TYPE GFR WITH HIGH TEMPERATURE GAS DIESEL.
ITUA20163713A1 (en) * 2016-05-04 2017-11-04 Luciano Cinotti NUCLEAR REACTOR WITH SELF-SUPPORTING HAZELNUT
CN111667928B (en) * 2020-06-19 2022-09-16 中国科学院近代物理研究所 Lead-based reactor fuel assembly locking structure
CN113140331B (en) * 2021-03-05 2023-09-15 国科中子能(青岛)研究院有限公司 Compact fuel assembly, reactor and mobile carrier

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL270218A (en) * 1960-10-14
NL275248A (en) * 1961-03-10
FR1500151A (en) * 1966-07-26 1967-11-03 Commissariat Energie Atomique nuclear reactor fuel element
BE791885A (en) * 1971-11-26 1973-03-16 Gen Electric NUCLEAR REACTOR CORE WITH BYPASS REFRIGERANT CONTROL

Also Published As

Publication number Publication date
JPS5945113B2 (en) 1984-11-02
DE2644516A1 (en) 1977-04-14
IT1071624B (en) 1985-04-10
GB1519546A (en) 1978-08-02
JPS5244391A (en) 1977-04-07

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19860214