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2 029 997

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C1

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IPC

(21) (22)

Application

5000341/25, 1991-08-20

(22)

Actual filing date

1991-08-20

(45)

Published

1995-02-27

(72)

Inventor

Bogdanov V.I.Eperin A.P.Shmakov L.V.Shavlov M.V.

(73)

Holder

Leningradskaja Atomnaja Ehlektrostantsija Im.V.I.Lenina

REPAIR METHOD FOR GRAPHITE STACKING OF NUCLEAR URANIUM-GRAPHITE REACTOR CORE Russian patent published in 1995 - IPC

Abstract RU 2029997 C1

FIELD: nuclear reactors. SUBSTANCE: expanding tool is inserted in reactor graphite stacking through central channel of stack built up of graphite blocks. Tool is used to hold part of stacking above defective block in position; then defective block is removed by fully destructing it with special tool through central channel. Mentioned part of stack is lowered down by means of expanding tool is removed from channel. Space formed in top part of graphite stacking is filled up by new block having characteristic transverse dimensions smaller than diameter of central channel. EFFECT: facilitated procedure. 2 dwg

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RU 2 029 997 C1

Authors

Bogdanov V.I.

Eperin A.P.

Shmakov L.V.

Shavlov M.V.

Dates

1995-02-27—Published

1991-08-20—Filed

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