METHOD FOR PRODUCING SPACER GRID FROM ZIRCONIUM ALLOY Russian patent published in 2005 - IPC

Abstract RU 2244348 C2

FIELD: nuclear power engineering.

SUBSTANCE: proposed method is used for manufacturing fuel assemblies for type VVER-1000 and VVER-440 reactors. In order to check spacer grid for passability it is placed in machine between two covers with depressions that follow grid outline and blind holes coaxial to each subchannel of grid accommodating calibrated balls, then it is tuned together with covers through 180 deg., subchannels of inadequate caliber are detected and burnished by means of drift. For checking diameter of circumference inscribed in subchannel the grid is placed in machine equipped with large-diameter calibrating balls, subchannels through which these balls have passed are detected and squeezed by means of clamping tool with jaws disposed in holes between subchannels. Decision on quality of spacer grid subchannels is taken by sticking of balls in them as spacer grid is turned in machine through 180 deg. Balls of different diameters are differently colored.

EFFECT: enhanced quality and yield of spacer grids.

2 cl, 4 dwg

Similar patents RU2244348C2

Title	Year	Author	Number
METHOD OF MAKING REMOTE FUEL ASSEMBLY GRID OF NUCLEAR REACTOR	2007	Chinnov Aleksandr Vladimirovich Lipukhin Nikolaj Aleksandrovich Zarubin Mikhail Grigor'Evich	RU2351027C2
MANUFACTURING METHOD OF SPACER GRID OF NUCLEAR REACTOR FUEL ASSEMBLY, AND DEVICE FOR REALISATION THEREOF	2007	Chinnov Aleksandr Vladimirovich Lipukhin Nikolaj Aleksandrovich Zarubin Mikhail Grigor'Evich	RU2360306C2
METHOD FOR MANUFACTURING SPACER GRID OF NUCLEAR REACTOR FUEL ASSEMBLY	2002	Chapaev I.G. Batuev V.I. Bychikhin N.A. Zarubin M.G. Chinnov A.V.	RU2265900C2
METHOD FOR MANUFACTURING FUEL ASSEMBLY SPACER GRIDS	2002	Zarubin M.G. Batuev V.I. Bychikhin N.A. Chinnov A.V.	RU2246769C2
METHOD TO MANUFACTURE SPACING GRID OF NUCLEAR REACTOR FUEL ASSEMBLY	2010	Chinnov Aleksandr Vladimirovich Volkov Lev Anatol'Evich Lipukhin Nikolaj Aleksandrovich	RU2450374C1
NUCLEAR REACTOR FUEL ASSEMBLY	2002	Rozhkov V.V. Chapaev I.G. Batuev V.I. Chinnov A.V. Zarubin M.G. Bychikhin N.A. Kushmanov A.I. Vasil'Chenko I.N. Enin A.A.	RU2223557C2
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
METHOD FOR MANUFACTURING NUCLEAR REACTOR FUEL ASSEMBLY SPACER GRID	2006	Chinnov Aleksandr Vladimirovich Lipukhin Nikolaj Aleksandrovich Batin Sergej Vasil'Evich	RU2322709C2
METHOD AND SPACER GRID FOR PREVENTING BURRS ON FUEL ELEMENTS	1999	Rozhkov V.V. Chapaev I.G. Bychikhin N.A. Batuev V.I. Zarubin M.G. Gushchin S.F. Filippov E.A. Enin A.A.	RU2175456C2
METHOD FOR PRODUCING SPACER GRIDS FOR NUCLEAR REACTOR FUEL ASSEMBLY	2006	Chinnov Aleksandr Vladimirovich Lipukhin Nikolaj Aleksandrovich Shustov Mstislav Aleksandrovich	RU2322710C2

RU 2 244 348 C2

Authors

Zarubin M.G.

Bychikhin N.A.

Batuev V.I.

Chinnov A.V.

Dates

2005-01-10—Published

2003-03-07—Filed