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2 208 849

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IPC

(21) (22)

Application

2001109173/06, 2001-04-05

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Start date

2001-04-05

(22)

Actual filing date

2001-04-05

(45)

Published

2003-07-20

(72)

Inventor

Bozhko A.G.Vinnikov A.I.Dmitriev A.P.Shishkin V.A.Matveev P.S.Savel'Eva I.N.Shchurov L.I.Markov V.V.Romanov V.G.

(73)

Holder

Tsentral'Noe Konstruktorskoe Bjuro Mashinostroenija

METHOD AND FACILITY FOR STRIPPING SPENT FUEL ASSEMBLY OF NUCLEAR REACTOR Russian patent published in 2003 - IPC

Abstract RU 2208849 C2

FIELD: handling nuclear materials. SUBSTANCE: fuel assembly to be stripped is installed into stripping facility and locked in position. Then pole with part of central rod, upper fuel bundle, and central rod are sequentially separated. Ampoules are removed from guide cavities by vertical displacement and placed in container can. All these procedures are conducted remotely. Stripping process involves so-called dry method using caisson wherein water level is below notch. Pole with part of central rod is separated over lower part of tip below threaded joint and pins securing tip on central rod. Then upper fuel bundle is removed from central rod and placed in ampoule. Part of central rod is first separated and then removed while lower fuel bundle is left in ampoule. Operator resides in enclosed chamber and watches process by means of television set secured on machine-tool overarm. EFFECT: facilitated procedure, reduced stripping time, enhanced operator's safety. 2 cl, 9 dwg

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RU 2 208 849 C2

Authors

Bozhko A.G.

Vinnikov A.I.

Dmitriev A.P.

Shishkin V.A.

Matveev P.S.

Savel'Eva I.N.

Shchurov L.I.

Markov V.V.

Romanov V.G.

Dates

2003-07-20—Published

2001-04-05—Filed