FR2028039A1 - Spacer for nuclear fuel rods - Google Patents

Spacer for nuclear fuel rods

Info

Publication number
FR2028039A1
FR2028039A1 FR6900454A FR6900454A FR2028039A1 FR 2028039 A1 FR2028039 A1 FR 2028039A1 FR 6900454 A FR6900454 A FR 6900454A FR 6900454 A FR6900454 A FR 6900454A FR 2028039 A1 FR2028039 A1 FR 2028039A1
Authority
FR
France
Prior art keywords
spacer
nuclear fuel
fuel rods
fuel rod
radius
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.)
Withdrawn
Application number
FR6900454A
Other languages
French (fr)
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
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR6900454A priority Critical patent/FR2028039A1/en
Priority to DE19702001327 priority patent/DE2001327B2/en
Publication of FR2028039A1 publication Critical patent/FR2028039A1/en
Withdrawn legal-status Critical Current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
    • G21C3/34—Spacer grids
    • G21C3/3408—Compact spacer grids, e.g. made of a plate or a blade
    • 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

Abstract

The spacer contacts the cylindrical periphery of a fuel rod at three points with pads of a concave surface which has a greater radius of curvature than the radius of a fuel rod. It is preferably produced from the solid by electro-erosion. Instead of being concave, the area of contact can be of a convex shape.
FR6900454A 1969-01-14 1969-01-14 Spacer for nuclear fuel rods Withdrawn FR2028039A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR6900454A FR2028039A1 (en) 1969-01-14 1969-01-14 Spacer for nuclear fuel rods
DE19702001327 DE2001327B2 (en) 1969-01-14 1970-01-13 SPACER FOR NUCLEAR FUEL RODS AND METHOD OF ITS MANUFACTURING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6900454A FR2028039A1 (en) 1969-01-14 1969-01-14 Spacer for nuclear fuel rods

Publications (1)

Publication Number Publication Date
FR2028039A1 true FR2028039A1 (en) 1970-10-09

Family

ID=9027793

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6900454A Withdrawn FR2028039A1 (en) 1969-01-14 1969-01-14 Spacer for nuclear fuel rods

Country Status (2)

Country Link
DE (1) DE2001327B2 (en)
FR (1) FR2028039A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261092A2 (en) * 1986-09-15 1988-03-23 Studsvik Aktiebolag Nuclear fuel element
FR2910687A1 (en) * 2006-12-26 2008-06-27 Areva Np Sas Spacer grid for nuclear fuel assembly, has support elements including contact parts, whose interior surfaces have convex shape in longitudinal plane radially oriented with respect to central axis of shell, before radiation

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007899A (en) * 1971-03-26 1977-02-15 Reactor Centrum Nederland Lattice construction
GB1562642A (en) * 1977-02-04 1980-03-12 Atomic Energy Authority Uk Apparatus for use in a liquid alkali metal environment
US4659542A (en) * 1984-10-03 1987-04-21 Westinghouse Electric Corp. Grid structure for nuclear fuel assembly
US4702881A (en) * 1985-04-02 1987-10-27 Westinghouse Electric Corp. Nuclear reactor spacer grid
DE8804390U1 (en) * 1988-03-31 1989-07-27 Interatom Gmbh, 5060 Bergisch Gladbach, De

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0261092A2 (en) * 1986-09-15 1988-03-23 Studsvik Aktiebolag Nuclear fuel element
EP0261092A3 (en) * 1986-09-15 1988-09-21 Studsvik Energiteknik Ab Nuclear fuel element nuclear fuel element
FR2910687A1 (en) * 2006-12-26 2008-06-27 Areva Np Sas Spacer grid for nuclear fuel assembly, has support elements including contact parts, whose interior surfaces have convex shape in longitudinal plane radially oriented with respect to central axis of shell, before radiation
WO2008090289A2 (en) * 2006-12-26 2008-07-31 Areva Np Spacer grille with saddle-shaped support elements and corresponding nuclear fuel assembly
WO2008090289A3 (en) * 2006-12-26 2008-11-27 Areva Np Spacer grille with saddle-shaped support elements and corresponding nuclear fuel assembly
US8644446B2 (en) 2006-12-26 2014-02-04 Areva Np Spacer grid with saddle-shaped supports and corresponding nuclear fuel assembly

Also Published As

Publication number Publication date
DE2001327A1 (en) 1970-09-17
DE2001327B2 (en) 1972-09-07

Similar Documents

Publication Publication Date Title
IT993097B (en) COMPLEX FOR THE DEFLECTION OF THE REFRIGERANT IN THE NUT OF A NUCLEAR REACTOR
YU302371A (en) Process for obtaining dextrogyric optically active, basesubstituted phenylacetonitriles
FR2028039A1 (en) Spacer for nuclear fuel rods
IT971183B (en) NUCLEAR FUEL NUT WITH COOLANT CONTROL BY SCAVALCO
IT999361B (en) METHOD FOR THE MANUFACTURE OF SAFETY FUEL TANKS
CA974202A (en) Nuclear reactor fuel rod splitter
JPS51109581A (en) Kyokumennosetsusakuho oyobi sore ni mochiirareru sochi
BR7504197A (en) PERFECT ARRANGEMENT FOR ASSEMBLY AND SUPPORT OF A NUCLEAR REACTOR PRESSURE VESSEL, ALLOWING IT TO MOVE UNDER THE EFFECT OF HEAT
DK120871B (en) Process for the production of finely divided particles with a high surface area, in particular for use in the production of filters.
NL160172C (en) VERTICAL COLUMN IN WHICH A DOWNFLOWING LIQUID IS PUT INTO CONTACT WITH A RISING GAS.
OA00649A (en) Fuel element for pressure tube nuclear reactors.
ES292587A1 (en) Fuel element for a nuclear reactor
CH548089A (en) NUCLEAR REACTOR WITH A SPACER FOR FUEL ROD.
FI47383C (en) The process produces nickel particles with thorium oxide particles on the surface.
SU466121A2 (en) Drum for cutting vikel
NL172282C (en) SAFETY ROD WITH LIQUID ABSORPTION FOR A NUCLEAR REACTOR.
ES157887U (en) Deposit support. (Machine-translation by Google Translate, not legally binding)
SE388960B (en) CYLINDRICAL PRESSURE CONTAINER FOR NUCLEAR REACTORS
FR2051797A1 (en) Fuel elements for nuclear reactors
JPS5352889A (en) Pedestal structure of pressure vessel for reactor
ES220821U (en) Cover for water depositors. (Machine-translation by Google Translate, not legally binding)
NL160974C (en) PRESSURE GAS SWITCH WITH CO-OPERATING TUBULAR CONTACT PIECES.
SU464758A1 (en) High Pressure Vessel Valve
CA897332A (en) Pressure tube type fuel assembly for nuclear reactor
ES364500A3 (en) Cornet switch on post with linear contact establishment. (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
ST Notification of lapse