Device for thermal protection of a nuclear reactor vessel

Details Device for thermal protection of a nuclear reactor vessel Device for thermal protection of a nuclear reactor vessel

1977-04-04

1978-11-28

Behrend, Harvey E.

176 87, G21C 1100

Patent

active

041274440

ABSTRACT:
A part of the cold liquid metal which is injected at the base of the reactor core is circulated along the bottom portion of the main reactor vessel and guided by a shell which is concentric with the vessel. A mass of inert gas is trapped within a leak-tight annular chamber above the liquid metal. During reactor operation, the gas pressure is adjusted in order to maintain the gas/liquid metal interface at a substantially constant level and to obtain along the vessel a temperature distribution which ensures limited amplitude of stress variation.

REFERENCES:
patent: 3784443 (1974-01-01), Vercasson
patent: 3962032 (1976-06-01), Berniolles et al.
patent: 4032399 (1977-06-01), Defauchy et al.

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