Cluster guide with centering and antivibratory positioning devic

Details Cluster guide with centering and antivibratory positioning devic Cluster guide with centering and antivibratory positioning devic

1986-11-26

1988-06-21

Kyle, Deborah L.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

Expansion means

376353, G21C 101

Patent

active

047524383

ABSTRACT:
A tubular cluster guide for use in a nuclear reactor having upper internals comprising a lower plate formed with flow openings is fixed to an upper plate of the intervals and provided with a device for guiding and centering its lower part in the lower core plate. The centering device has a plurality of rigid blades carried by the lower part of the guide, spaced apart angularly about the axis of the guide and engagable in an opening of the lower plate with a radial clearance and a plurality of flexible blades between the rigid blades. The flexible blades bear on the edge of the opening and exert a radially directed force thereon. Bridges may be formed in the lower plate to retain a broken resilient blade.

REFERENCES:
patent: 4584168 (1986-04-01), Formanek

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