Induced nuclear reactions: processes – systems – and elements – Fission reactor material treatment – Impurity removal
Patent
1985-06-05
1988-08-09
Terapane, John F.
Induced nuclear reactions: processes, systems, and elements
Fission reactor material treatment
Impurity removal
376310, 376316, 134111, 134153, 134170, G21C 1932
Patent
active
047626704
ABSTRACT:
A cleaning apparatus for atomic reactor control rod driving means (CRD) comprises a water tub for washing a CRD, rails laid within the water tub, a truck for loading the CRD installed on the rails, a CRD clamp unit mounted on the truck having means for rotating the CRD in the circumferential direction as well as for clamping the CRD, a CRD disassembling and assembling grapple unit installed within the water tub to clamp the CRD and move the same sideways, an outer-surface washing nozzle for washing an outer tube surface and strainer of the CRD, a lance installed within the water tub, which is insertable into the tubes of the CRD and which is equipped with a nozzle assembly to spray the washing water onto the inner surface of the tubes, a filter washing nozzle unit installed within the water tub to spray the washing water onto a cylindrical filter of the CRD, a washing-water circulating pipe connected to the water tub, and a filter unit provided on a portion of the pipe, to filter the washing water.
REFERENCES:
patent: 4483205 (1984-11-01), Bellaiche et al.
Ishii Yoshimi
Izumi Kiyoshi
Omote Tatsuyuki
Yoshida Tomiharu
Hitachi , Ltd.
Maples John S.
Terapane John F.
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