Patenton — panteon of patents

(19)

RU

(11)

2 194 314

(13)

C2

(51)

IPC

(21) (22)

Application

2000118044/06, 2000-07-07

(24)

Start date

2000-07-07

(22)

Actual filing date

2000-07-07

(45)

Published

2002-12-10

(72)

Inventor

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

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Khimkontsentratov"

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

Abstract RU 2194314 C2

FIELD: nuclear power engineering; manufacture of fuel assemblies for nuclear reactors. SUBSTANCE: method involves installation of spacer grids with coaxial cells onto supporting surface, insertion of fuel elements in coaxial cells of spacer grids, and their locking in these cells; spacer grids are manufactured in advance from single sheet and provided with crosspieces between them, diameter of cell inscribed circle being greater than that of fuel element; spacer grids are bent over these crosspieces until they are aligned and form integral zigzag-shaped spacer-grid member; after fuel elements have been easily entered in coaxial cells they are locked therein by undoing spacer grids of zigzag-shaped spacer member until fuel elements come in contact with end walls in each cell and are locked in position. Projections made in cells have diameter of cell inscribed circle over projections greater than that of fuel element and they are used to additionally lock fuel elements in cells of spacer grids in inclined position relative to each spacer grid of zigzag-shaped spacer member. EFFECT: enhanced quality of fuel assembly manufacture and its operating reliability in nuclear reactor. 3 cl, 4 dwg

Similar patents RU2194314C2

Title Year Author Number
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 PREVENTING BURRS ON FUEL ELEMENTS 2000
  • Rozhkov V.V.
  • Chapaev I.G.
  • Batuev V.I.
  • Chinnov A.V.
  • Zarubin M.G.
  • Bychikhin N.A.
  • Enin A.A.
 RU2179760C2
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.
 RU2189644C2
METHOD FOR PRODUCING FUEL ASSEMBLY FROM FUEL ELEMENTS 1999
  • Chapaev I.G.
  • Batuev V.I.
  • Bychikhin N.A.
  • Il'In G.V.
  • Filippov E.A.
  • Jadryshnikov M.V.
 RU2181220C2
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
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
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
METHOD FOR MANUFACTURING FUEL ASSEMBLY SPACER GRIDS 2002
  • Zarubin M.G.
  • Batuev V.I.
  • Bychikhin N.A.
  • Chinnov A.V.
 RU2246769C2
METHOD FOR PRODUCING SPACER GRID FROM ZIRCONIUM ALLOY 2003
  • Zarubin M.G.
  • Bychikhin N.A.
  • Batuev V.I.
  • Chinnov A.V.
 RU2244348C2
NUCLEAR REACTOR FUEL ASSEMBLY 1999
  • Rozhkov V.V.
  • Chapaev I.G.
  • Batuev V.I.
  • Katanov Ju.G.
  • Bachurin V.D.
  • Bychikhin N.A.
  • Enin A.A.
 RU2174718C2

RU 2 194 314 C2

Authors

Chapaev I.G.

Bychikhin N.A.

Chinnov A.V.

Batuev V.I.

Zarubin M.G.

Dates

2002-12-10—Published

2000-07-07—Filed

download Download PDF read Similar patents