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2 179 760

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IPC

(21) (22)

Application

2000106210/06, 2000-03-13

(24)

Start date

2000-03-13

(22)

Actual filing date

2000-03-13

(45)

Published

2002-02-20

(72)

Inventor

Rozhkov V.V.Chapaev I.G.Batuev V.I.Chinnov A.V.Zarubin M.G.Bychikhin N.A.Enin A.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

METHOD FOR PREVENTING BURRS ON FUEL ELEMENTS Russian patent published in 2002 - IPC

Abstract RU 2179760 C2

FIELD: nuclear power engineering; manufacture of fuel assemblies for nuclear reactors. SUBSTANCE: method involves installation of spacer grids with rings on supporting surface throughout entire length of fuel assembly being manufactured and equally spaced apart with spacer-grid rings arranged on supporting surface and attached to the latter for the time being; in addition pre-manufactured fields of assembled cells attached to each other so that axes of all cells be parallel to supporting structure are installed in inclined position relative to each ring on either side with certain opening angle in bottom part of ring; cellular fields are arranged in inclined position; after fuel rods are entered in all cells of fields the latter are joined together with fuel rods facing each other and the ring, cellular fields are passed into ring, secured therein in vertical position, and fuel rods are locked by means of inclined cells at points of their contact with ends of walls. EFFECT: enhanced reliability of locking fuel rods in spacer-grid cells, improved quality of assembly, reduced cost, augmented heat transfer. 1 cl, 4 dwg

Similar patents RU2179760C2

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METHOD FOR PRODUCING NUCLEAR REACTOR FUEL ASSEMBLY	2000	Rozhkov V.V. Chapaev I.G. Batuev V.I. Enin A.A. Bychikhin N.A. Sinikov Ju.G. Mamykin S.A.	RU2195720C2
FUEL ASSEMBLY MANUFACTURING METHOD	2020	Zarubin Mikhail Grigorevich Strukov Aleksandr Vladimirovich Mokshin Ilya Vladimirovich Lebedev Nikolaj Mikhajlovich Krasilnikov Dmitrij Aleksandrovich Grot Aleksandr Nikolaevich	RU2732730C1
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METHOD FOR MAKING FUEL ASSEMBLIES OF NUCLEAR REACTOR (VARIANTS)	2001	Rozhkov V.V. Chapaev I.G. Batuev V.I. Luzin A.M. Bychikhin N.A. Rabin A.I. Kulaev A.V. Bachurin V.D.	RU2215632C2
METHOD FOR MANUFACTURING FUEL-ASSEMBLY SPACER GRIDS	2002	Chapaev I.G. Bychikhin N.A. Zarubin M.G. Batuev V.I. Judina E.V. Nikishov O.A.	RU2223558C2

RU 2 179 760 C2

Authors

Rozhkov V.V.

Chapaev I.G.

Batuev V.I.

Chinnov A.V.

Zarubin M.G.

Bychikhin N.A.

Enin A.A.

Dates

2002-02-20—Published

2000-03-13—Filed