Device for protecting in-core monitors against damage during ser

Details Device for protecting in-core monitors against damage during ser Device for protecting in-core monitors against damage during ser

1996-09-11

1998-09-01

Carone, Michael J.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

Fuel component

376254, 376245, 376260, G21C 1700

Patent

active

058021272

ABSTRACT:
An in-core monitor protector intended for use during in-vessel services while work is being performed in the reactor core region of a BWR. The purpose of the protector is to prevent damage to or displacement of the in-core monitors, which could be caused by the installation or removal of various types of equipment through the top guide of the core during an outage. This protection is accomplished by partly surrounding the in-core monitor with the protector. The primary component is an aluminum channel of such size as to surround the monitor on three sides and of such length as to extend from the bottom of the top guide to the top of the fuel support castings. The closed sides of the channel prevent direct contact between servicing tools and the monitor. A top subassembly is used to secure the protector to the top guide. A bottom subassembly is used to secure the protector to the fuel support castings.

REFERENCES:
patent: 4318776 (1982-03-01), Proll et al.
patent: 4623508 (1986-11-01), Glesius et al.
patent: 4790976 (1988-12-01), Zahn et al.

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