Induced nuclear reactions: processes – systems – and elements – Reactor protection or damage prevention – Expansion means
Patent
1987-09-10
1989-08-22
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
Reactor protection or damage prevention
Expansion means
376203, 376289, 376402, 376404, 376461, G21C 1300
Patent
active
048594024
ABSTRACT:
A liquid metal nuclear reactor has a sodium tank, having a closed arcuate bottom and upstanding cylindrical wall for containing a reactor core in a pool of liquid metal coolant, which is disposed in a guard tank having a bottom and upwardly extending cylindrical shell, and a support inside the guard tank adjacent the closed bottom of the sodium tank to support the two tanks in spaced relationship to each other. The sodium tank has an open top spaced from an overlying closure deck, with the cylindrical shell of the guard tank secured to the closure deck. The support is preferably an inner ledge. Support legs are also provided about the bottom periphery of the guard tank adapted to rest on a base mat of a reactor cavity. The bottom of the guard tank may be a closed arcuate shape, or the bottom may be a flat bottom wall that rests on the base mat with the cylindrical shell divided into two radially spaced sections, with a pool of lead-bismuth alloy provided on the bottom to seal the spaces between the two shell sections at the lower region thereof.
A metal barrier may be provided between the guard tank and the reactor cavity side wall to divide the area therebetween into two annular chambers, with a thermal insulation provided on the barrier outside to form the inner chamber into an oven-like chamber.
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Brown Gedney B.
Dhalla Asfandiar K.
Livingston Julie M.
Mangus James D.
Sharbaugh John E.
Kyle Deborah L.
Wasil Daniel
Westinghouse Electric Corp.
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