FIELD: power industry.
SUBSTANCE: spent nuclear fuel (VVER-1000) canister includes housing with partition walls installed inside it and forming cells. Spent fuel assemblies are installed into the above cells; cover plate with mushroom equipped with valve unit and device for coupling the cover plate to the housing, and supporting pipe installed inside housing are provided. Supporting pipe has square section; inside housing there mounted are vertical posts on which plates are installed in several tiers; those plates are attached to canister housing; on side edges of plates there are recesses at an angle of 120°, which are connected by means of angular vertical liners; at that, sides of square section of supporting pipe and angular vertical liners form six-sided sections exceeding the six-sided section of spent fuel assemblies.
EFFECT: invention allows increasing canister payload coefficient.
2 dwg
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Authors
Dates
2012-11-27—Published
2011-04-25—Filed