Patenton — panteon of patents

(19)

RU

(11)

2 152 086

(13)

C1

(51)

IPC

(21) (22)

Application

98114365/06, 1998-07-28

(24)

Start date

1998-07-28

(22)

Actual filing date

1998-07-28

(45)

Published

2000-06-27

(72)

Inventor

Enin A.A.Rozhkov V.V.Vasil'Chenko I.N.Nikishov O.A.Chapaev I.G.Kislitskij A.A.Sinikov Ju.G.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

SPACER GRID Russian patent published in 2000 - IPC

Abstract RU 2152086 C1

FIELD: fuel assemblies of nuclear reactors. SUBSTANCE: spacer grid that functions to space apart fuel elements in fuel assembly so as to improve quality and safety of the latter is built up of cells joined together by resistance welding and provided with chamfers and corrugations where ratio of top rounding radius to base transfer one is below 0,5; it is characterized in that welds between adjacent edges of cell are made over radius equal to at least two thicknesses of cell wall δ. Optimal diameter of spot welds makes up three or four thicknesses of cell wall at width of direct relative contact between welded edges of cells making up 1.5-2.5 diameters of optimal spot; spot welds are located not below chamfers and gaps made at least on side where fuel element enters the cell at corners of its adjacent welded edges; at least one corrugation is provided in gap between two adjacent cells of peripheral row on at least three edges of rim. EFFECT: improved performance characteristics and facilitated manufacture of grids. 3 cl, 4 dwg

Similar patents RU2152086C1

Title Year Author Number
SPACER GRID FOR NUCLEAR-REACTOR FUEL ASSEMBLY 2000
  • Rozhkov V.V.
  • Chapaev I.G.
  • Batuev V.I.
  • Bychikhin N.A.
  • Chinnov A.V.
  • Zarubin M.G.
  • Enin A.A.
 RU2179754C2
WELDING TECHNIQUE FOR SPACER GRIDS OF NUCLEAR- REACTOR FUEL ASSEMBLIES 1998
  • Jurin P.M.
  • Nekhoda M.M.
  • Lizunov Ju.K.
  • Zarubin M.G.
  • Kislitskij A.A.
 RU2152085C1
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
NUCLEAR REACTOR FUEL ELEMENT 2000
  • Rozhkov V.V.
  • Chapaev I.G.
  • Batuev V.I.
  • Enin A.A.
  • Bychikhin N.A.
  • Sinikov Ju.G.
  • Shmykov V.M.
  • Akimova I.A.
 RU2195719C2
SPACER GRID OF NUCLEAR REACTOR FUEL ASSEMBLY 1997
  • Zarubin M.G.
  • Batuev V.I.
  • Chapaev I.G.
  • Rozhkov V.V.
  • Gushchin S.F.
  • Enin A.A.
 RU2127001C1
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
INSPECTION METHOD OF ELECTRODE ACTIVE FACE WEAR OF WELDED FUEL ASSEMBLY SPACER GRID OF NUCLEAR REACTOR AFTER ELECTRODES REPLACEMENT OR CONVERSION TO DIFFERENT TYPE OF SPACER GRID 2006
  • Chinnov Aleksandr Vladimirovich
  • Lipukhin Nikolaj Aleksandrovich
 RU2323807C2
METHOD FOR QUALITY CONTROL OF CONTACT-SPOT WELDED JOINTS 2001
  • Chapaev I.G.
  • Batuev V.I.
  • Bychikhin N.A.
  • Zarubin M.G.
  • Chinnov A.V.
 RU2196668C1
NUCLEAR REACTOR FUEL ASSEMBLY 2001
  • Rozhkov V.V.
  • Chapaev I.G.
  • Bychikhin N.A.
  • Batuev V.I.
  • Zarubin M.G.
  • Bachurin V.D.
  • Kushmanov A.I.
  • Nikishov O.A.
  • Vasil'Chenko I.N.
 RU2209475C2
CLUSTER OF FUEL ELEMENTS OF NUCLEAR REACTOR 1990
  • Kurskov V.S.
  • Boevoj V.I.
  • Egorov G.A.
  • Zheleznjak V.M.
  • Smirnov A.B.
  • Pugachev G.F.
 RU1785370C

RU 2 152 086 C1

Authors

Enin A.A.

Rozhkov V.V.

Vasil'Chenko I.N.

Nikishov O.A.

Chapaev I.G.

Kislitskij A.A.

Sinikov Ju.G.

Dates

2000-06-27—Published

1998-07-28—Filed

read Similar patents