Induced nuclear reactions: processes – systems – and elements – Control component for a fission reactor
Patent
1984-07-26
1989-04-11
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
Control component for a fission reactor
376277, G21C 710
Patent
active
048200581
ABSTRACT:
A nuclear reactor includes a plurality of upstanding guide thimbles and a plurality of control rods received in the guide thimbles and supported for movement relative to the thimbles between inserted and withdrawn positions. The control rods each include a tubular cladding member and an end plug attached to a lower end of the member. The improvement relates to the end plug having a stabilizing configuration which reduces lateral vibratory motion and contact between the control rod and its respective guide thimble. The end plug has an asymmetrical shape which places its terminal tip end in a position offset to one side of the central axis of the control rod and its end plug. As a result of interaction of the asymmetrical plug tip with coolant flowing along the control rod, a lateral steady-state force is imparted to the end plug which maintains the control rod end plug pressed against the wall of tis respective guide thimble. Several different asymmetrical configurations can be employed on the end plug.
REFERENCES:
patent: 3285820 (1966-11-01), Tollet et al.
patent: 3728218 (1973-04-01), Gnutzmann et al.
patent: 3979258 (1976-09-01), Schweiger et al.
patent: 4292132 (1981-09-01), Schukei et al.
patent: 4311560 (1982-01-01), Verdone
patent: 4313796 (1982-02-01), Buettiker
Cerni Samuel
Gjertsen Robert K.
Wilson John F.
Klein Richard L.
Kyle Deborah L.
Westinghouse Electric Corp.
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