Published May 11, 1984 | Version v1
Patent

Fast neutron nuclear reactor core cover plug

Description

The cover plug comprises a support plate, a cylindrical envelope, of which axis is vertical, forming one piece with the support plate, and transversal spacers in regard with the envelope. Vertical tubes fixed at their upper part on the the support plate are coupled with the spacers. The spacers consist of at least two conical shells having the same axis that the envelope. The conical shells angle is above 1200; the base diameter is lightly lower than the diameter of the envelope. The lowest shell makes the coolant deflecting. The invention applies more particularly to integrated type reactors cooled by sodium

Availability note (English)

Available from Institut National de la Propriete Industrielle, Paris (France).

Abstract (French)

Le bouchon-couvercle comporte une plaque-support, une enveloppe cylindrique a axe vertical solidaire de la plaque-support et des entretoises transversales par rapport a l'enveloppe. Des tubes verticaux fixes a leur partie superieure sur la plaque-support sont relies aux entretoises. Les entretoises sont constituees par au moins deux voiles coniques ayant leur axe confondu avec l'axe de l'enveloppe. Ces voiles coniques ont un angle au sommet superieur a 1200 et un diametre legerement inferieur au diametre de l'enveloppe, a leur base. L'entretoise situee le plus bas dans l'enveloppe assure la deflection du fluide de refroidissement du reacteur. L'invention s'applique, en particulier, aux reacteurs nucleaires a neutrons rapides de type integre refroidis par du sodium

Additional details

Additional titles

Original title (French)
Bouchon-couvercle du coeur d'un reacteur nucleaire a neutrons rapides

Publishing Information

Imprint Pagination
13 p.
IPC:
Int. Cl. G21c13/06.
IPC
Int. Cl. G21c13/06.
Patent number
FR patent document 2535888/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
17019784
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CLOSURES; FAST REACTORS; REACTOR CORES; SODIUM COOLED REACTORS
Descriptors DEC
EPITHERMAL REACTORS; LIQUID METAL COOLED REACTORS; REACTOR COMPONENTS; REACTORS

Optional Information

Secondary number(s)
FR patent application 8218570.