METHOD TO STORE URANIUM-GRAPHITE REACTOR Russian patent published in 2011 - IPC G21F7/00 

FIELD: power engineering.

SUBSTANCE: method of storage includes dismantling of available reactor equipment, concreting of process holes in the reactor vault, formation of a protective ceiling above the reactor and the vault, reinforcement of the reactor concrete vault with a reinforced concrete, supporting the lower metal structure with stands installed on the base of the concrete vault, arrangement of steel pipes in a graphite block, and their ends are sealed in holes of upper and lower metal structures, application of fire retardants onto the upper metal structure and the protective ceiling, removal of sand fill from the cavity between side metal structures and walls of the vault and installation of additional channels. Additional channels are installed in a cavity between walls of the vault and side metal structures and in a cavity between side metal structures and a graphite block.

EFFECT: increased duration of safe curing of a shutdown uranium-graphite reactor.

2 cl, 1 dwg