BASKET FOR A TRANSPORTATION AND STORAGE CASK FOR SPENT NUCLEAR FUEL FROM A PRESSURIZED WATER REACTOR

摘要

The invention relates to baskets for casks for the transportation and temporary storage of fuel assemblies from a pressurized water reactor. The present basket for a transportation and storage cask for spent nuclear fuel from a pressurized water reactor comprises a base, to which are fastened, one above the other, steel discs and aluminium discs disposed between said steel discs. The discs are provided with two rows of openings. Channels are mounted in said openings. The basket is comprised of a single section and is provided with additional vertical elements for fastening the discs, said elements being arranged in a circle between the axes of the inner and outer rows of openings in the discs. The openings and the channels are circular and are capable of receiving canisters for spent fuel assemblies. The base of the basket is provided with grooves and detents for said canisters. The inner row of openings is comprised of two openings, and the outer row is comprised of eight openings. The invention makes it possible to uphold the dimensions of existing baskets of transport packages for pressurized water reactors and to improve the maintainability of the basket.