CONTAINER COVER FOR SPENT NUCLEAR FUEL TRANSPORTATION AND STORAGE Russian patent published in 2019 - IPC G21F5/00 

FIELD: nuclear energy.

SUBSTANCE: invention relates to devices in which fuel assemblies with spent nuclear fuel are placed during their transportation and storage. Cover of container for transportation and storage of spent nuclear fuel includes cast housing with poured shaped metal tubes with flat faces forming channels for installation of fuel assemblies. Pipes in the jacket are installed with circular rows tightly to each other with conjugation along flat faces around the central pipe. Outer surfaces of conjugated flat tube faces are coated with copper sheets. Space between external surface of pipes of outer annular row and inner surface of cast housing is filled with inserts from neutron-protective material with melting point higher than melting point of material of cast housing. Structure is rigidly fixed due to shrinkage occurring during crystallisation of molten metal at cast cast housing casting.

EFFECT: imparting high neutron protective properties to the case while providing improved heat removal from fuel assemblies installed in appropriate channels to the outer surface of the cast housing of the case.

1 cl, 4 dwg, 1 tbl