Control rod guide tube

Details Control rod guide tube Control rod guide tube

1993-07-13

1994-11-08

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Reactor structures

With particular control rod guide structure

376377, G21C 104

Patent

active

053634217

ABSTRACT:
Control rod guide tube adapted to reduce vibration of a plurality of control rods disposed therein. The guide tube comprises an elongate housing surrounding the control rods, the housing having an opening at an end thereof for receiving a flowing fluid therethrough. The fluid has a velocity component acting transversely to the control rods sufficient to induce vibration of the control rods. However, the housing of the present invention has an intermediate portion pierced by a plurality of apertures for exit of the fluid from the housing to reduce the velocity of the fluid acting transversely to the control rods in order to reduce vibration of the control rods. As control rod vibration is reduced, control rod wear is mitigated.

REFERENCES:
patent: 3940311 (1976-02-01), Frisch
patent: 4265708 (1981-05-01), Lawrence
patent: 4313796 (1982-02-01), Buettiker
patent: 4333798 (1982-06-01), Anthony
patent: 4584168 (1986-04-01), Formanek
patent: 4597935 (1986-07-01), Verdeau et al.
patent: 5053189 (1991-10-01), Chrise et al.
patent: 5237595 (1993-08-01), Woodcock
patent: 5263060 (1993-11-01), Obermeyer

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