Stabilizing device for control rod tip

Details Stabilizing device for control rod tip Stabilizing device for control rod tip

1979-05-04

1982-01-19

Cangialosi, S. A.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By movement of control element or by release of neutron...

376327, 376285, G21C 710

Patent

active

043115608

ABSTRACT:
A control rod having a spring device on its lower end for eliminating oscillatory contact of the rod against its adjacent guide tube wall. The base of the device is connected to the lower tip of the rod. A plurality of elongated extensions are cantilevered downward from the base. Each extension has a shoulder for contacting the guide tube, and the plurality of shoulders as a group has a transverse dimension that is preset to be larger than the inner diameter of the guide tube such that an interference fit is obtained when the control rod is inserted in the tube. The elongated extensions form an open-ended, substantially hollow member through which most of the liquid coolant flows, and the spaces between adjacent extensions allow the flow to bypass the shoulders without experiencing a significant pressure drop.

REFERENCES:
patent: 3309283 (1967-03-01), Alfille et al.
patent: 3479250 (1969-11-01), Ripley
patent: 3486975 (1969-12-01), Ripley
patent: 3562109 (1971-02-01), Bezold et al.
patent: 3640845 (1972-02-01), Ripley
patent: 3855060 (1974-12-01), Dietrich et al.
patent: 4053355 (1977-10-01), Vukovich

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