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AssigneeCommissariat a l'Energie Atomique
InventorsChantal Casselman, Jean C. Malet, Yvon Sophy, Roger Pacton
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The invention relates to a protective structure for a concrete enclosure able to contain a fluid, which can be raised to a high temperature. Starting from the floor of the enclosure, the structure comprises a porous layer, intersecting shaped sections and a tight metal skin formed from plates, welded edge-to-edge along the axes of the shaped sections, after being fixed to the latter e.g. by weld spots. The cavities formed between the shaped sections receive concrete blocks and flexible joints. The metal skin has a peripheral rising portion along the walls of the enclosure and extending up to the maximum fluid level in the enclosure. Application to enclosures having to receive hydrocarbons or liquid sodium, e.g. on the site of a fast neutron nuclear reactor.
A protective structure for a concrete floor and walls of a concrete enclosure which is to contain a high temperature fluid, wherein said protective structure comprises a porous layer covering the concrete floor of the enclosure, a support frame made from shaped sections intersecting in accordance with a regular lattice structure, and resting on the porous layer, a lining filling the cavities defined between the shaped sections and a tight metal skin resting on the support frame and constituted by thin plates fixed to the shaped section and assembled by welds placed along axes of the shaped sections, said metal skin having a peripheral rising portion along the walls of the enclosure, said peripheral rising portion defining an upper free edge positioned above a maximum fluid level in the enclosure.
Dependencies are inferred from the claim text.