Removal of obstructions in thimbles of nuclear power reactors

Details Removal of obstructions in thimbles of nuclear power reactors Removal of obstructions in thimbles of nuclear power reactors

1988-11-30

1989-12-05

Behrend, Harvey E.

Induced nuclear reactions: processes, systems, and elements

Handling of fission reactor component structure within...

G21C 1900

Patent

active

048851248

ABSTRACT:
In the operation of a power reactor having a pressure vessel (2) containing a core and a plurality of thimbles extending into the core to provide passages for a flux detector, a movable support member (12) located outside of the pressure vessel (2) and carrying a plurality of tubular members (10) each detachably connected to a respective thimble, and a transfer unit (20) normally coupled to the tubular members (10) for introducing a flux detector into a selected thimble via a respective tubular member (10), obstructions are removed from a selected thimble while the reactor remains in operation, by the steps of:

REFERENCES:
patent: 4610838 (1986-09-01), Gasparro et al.
patent: 4720369 (1988-01-01), Cadaureille et al.
patent: 4790976 (1988-12-01), Zahn et al.

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