Stuck fuel rod capping sleeve

Details Stuck fuel rod capping sleeve Stuck fuel rod capping sleeve

1986-05-09

1988-03-22

Terapane, John F.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

376440, 376451, 376463, 220288, G21C 900, B65D 4104

Patent

active

047327308

ABSTRACT:
A stuck fuel rod capping sleeve to be used during derodding of spent fuel assemblies if a fuel rod becomes stuck in a partially withdrawn position and, thus, has to be severed. The capping sleeve has an inner sleeve made of a lower work hardening highly ductile material (e.g., Inconel 600) and an outer sleeve made of a moderately ductile material (e.g., 304 stainless steel). The inner sleeve may be made of an epoxy filler. The capping sleeve is placed on a fuel rod which is then severed by using a bolt cutter device. Upon cutting, the capping sleeve deforms in such a manner as to prevent the gross release of radioactive fuel material

REFERENCES:
patent: 1319136 (1919-10-01), Bieker
patent: 3222256 (1965-12-01), Fletcher et al.
patent: 3828868 (1974-08-01), Jabsen
patent: 4428903 (1984-01-01), Kasik et al.
patent: 4452755 (1984-06-01), Hylton

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