Roof reflector for a nuclear reactor

Details Roof reflector for a nuclear reactor Roof reflector for a nuclear reactor

1987-12-03

1990-05-08

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

Moderator or reflector component structure for a fission...

With means for keying or assembling moderator blocks together

376381, G21C 1106

Patent

active

049236709

ABSTRACT:
A roof reflector comprising at least three individual layers of tapered layer elements combined in the form of vertical columns. Each column rests on a block column of the lateral reflector. Individual elements are secured by wedges and dowels to permit vertical column movements without constraint. The top and bottom layers comprise gas collector spaces communicating with each other by passage openings in the middle layer. In the top and bottom layers are also slot-shaped passage openings leading to an from the collector spaces. Preferably, they are radially offset relative to the passage openings in the middle layer to obtain good gas mixing as it rises through the reflector.
Such a roof reflector is useful for avoiding roof reflector element damage if one element is vertically displaced relative to an adjacent element. The roof elements are carefully designed to achieve this end and maintain cover utility.

REFERENCES:
patent: 3607641 (1971-09-01), Lind
patent: 4199405 (1980-04-01), Schweiger
patent: 4675155 (1987-06-01), Schoening
patent: 4728492 (1988-03-01), Schoening

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