Guide device

Details Guide device Guide device

1975-08-08

1977-10-11

Engle, Samuel W.

176 87, G21C 1916

Patent

active

040533565

ABSTRACT:
A fuel handling guide tube centering device for use in nuclear reactors during fuel assembly handling operations. The device comprises an outer ring secured to the flange of a nuclear reactor pressure vessel, a rotatable table rotatably coupled to the outer ring, and a plurality of openings through the table. Truncated locating cones are positioned in each of the openings in the table, and the locating cones center the guide tube during fuel handling operations. The openings in the table are located such that each fuel assembly in the nuclear core may be aligned with one of the openings by a suitable rotation of the table. The locating cones thereby provide alignment between the fuel handling mechanism located in the guide tube and the individual fuel assemblies of the cone. The need for a device to provide alignment is especially critical for floating nuclear power plants, where wave motion may exist during fuel handling operations.

REFERENCES:
patent: 3072554 (1963-01-01), Madsen
patent: 3179266 (1965-04-01), Lemesle et al.
patent: 3271262 (1966-09-01), Hutchinson et al.
patent: 3437558 (1969-04-01), Gunson et al.
patent: 3773616 (1973-11-01), Aubent
patent: 3841964 (1974-10-01), Dumayne
patent: 3909350 (1975-09-01), Dupuy

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