CASE FOR STORAGE OF VVER-1000 REACTORS SPENT FUEL ASSEMBLIES

摘要

FIELD: nuclear engineering.;SUBSTANCE: invention relates to nuclear engineering, to means of VVER-1000 reactor defective spent fuel assemblies (SFA) storage. Case comprises base, central pipe, spacer grids with openings for installation of pipes where defective SFA are located. Covers equipped with heads are installed on pipes by means of bayonet connection, which external outline corresponds to SFA heads external outline and in upper part of which metal-ceramic filters are mounted. Pipes are made with possibility of their extraction from case together with defective SFA installed in them by covers heads and installation into storage case. Bottom upper surface is inclined to central axis and is equipped with bore, in which screen is flush-mounted, under which openings are made in bottom. Bottom lower surface is made with possibility of firm adherence to case base. Screen is fixed in bore with radial plates, which described diameter exceeds SFA shank external diameter.;EFFECT: invention enables defective SFA loading into dry storage case.;1 cl, 3 dwg