Device for supporting a nuclear reactor core
AssigneeCommissariat a l'Energie Atomique
InventorDidier Costes
Life of this patent
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Abstract
The core of a light-water reactor which is enclosed in a prestressed concrete pressure vessel and held within a diffuser basket is supported by a device consisting of a cylindrical shell which surrounds the basket and is rigidly fixed to a plurality of frusto-conical skirts having concurrent axes and located substantially at right angles to the axis of the reactor core. The small base of each skirt is rigidly fixed to the shell and the large base is anchored in openings formed in the reactor vessel for the penetration of coolant inlet and outlet pipes. The top portion of the shell is secured to the top portion of the diffuser basket, a flat surface being formed on the shell at the point of connection with each frusto-conical skirt so as to ensure rigid suspension while permitting of thermal expansion.
Claims8
A device for supporting a reactor core structure of a nuclear reactor, wherein said device is constituted by a cylindrical shell having a plurality of flat surfaces in which the normals to the centers of said surfaces are approximately concurrent and wherein each flat surface is rigidly connected at the center thereof to a reactor vessel and at the periphery thereof to the reactor core structure.
Dependencies are inferred from the claim text.