Nuclear fuel assembly lock down device

Details Nuclear fuel assembly lock down device Nuclear fuel assembly lock down device

G - Physics

21

C

359/78

G21C 5/06 (2006.01)

Patent

CA 1223094

ABSTRACT OF THE DISCLOSURE A nuclear fuel assembly lock down device A nuclear reactor has a stationary horizontal core plate and a plurality of upright nuclear fuel assemblies all having the same cross-section and located side by side in a regular polygonal network. Each fuel assembly either has two locations for elongated plug elements or is adjacent a fuel assembly having such locations. A device for holding down the fuel assemblies comprises a plurality of locking sets each having at least one deformable locking member and a rigid member one of which is carried by a fuel assembly and the other by the core plate. The deformable locking member is so located with respect to a location and with the asso- ciated rigid member that insertion of an elongated element into the location forces the deformable locking member into positive engagement with the associated rigid member.

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