Title:
CONTROL ROD IN A HYDROGEN-COOLED VESSEL REACTOR
Document Type and Number:
WIPO Patent Application WO/1998/036422
Kind Code:
A1
Abstract:
The invention relates to the nuclear technology, especially to facilities in the control and protective system of hydrogen-cooled vessel reactors, and can be used among the adjusting mechanisms realized in the form of single rods, either single or integrated to an assembly. The control rod includes an envelope in which is mounted the neutron absorption tower comprised of two parts, of which one is made of a material reacting with neutrons (n.$g(a)), for example boron carbide. The other part, inserted into the active portion of the first part of the tower, is of a length determined by a mathematical expression comprising the length of the neutron absorption tower as well as the efficiency values of the control rods with various parameters. The length of that part made of a dysprosium-based material, determined by the above-mentioned mathematical expression, permits to manufacture the rod with a maximum mass, taking into account the change in its absorbing properties resulting from an increase in the specific share of the dysprosium-based material, the density of which is clearly lower than that of boron carbide.
Inventors:
CHERNYSHOV VLADIMIR MIKHAILOVI (RU)
RYAKHOVSKIKH VIKTOR IVANOVICH (RU)
POSLAVSKY ALEXANDR OLEGOVICH (RU)
PONOMARENKO VIKTOR BORISOVICH (RU)
MAKOVSKY VLADIMIR DANILOVICH (RU)
OSADCHY ALEXANDR IVANOVICH (RU)
LUNIN GLEB LEONIDOVICH (RU)
VASILCHENKO IVAN NIKITOVICH (RU)
RYAKHOVSKIKH VIKTOR IVANOVICH (RU)
POSLAVSKY ALEXANDR OLEGOVICH (RU)
PONOMARENKO VIKTOR BORISOVICH (RU)
MAKOVSKY VLADIMIR DANILOVICH (RU)
OSADCHY ALEXANDR IVANOVICH (RU)
LUNIN GLEB LEONIDOVICH (RU)
VASILCHENKO IVAN NIKITOVICH (RU)
Application Number:
PCT/RU1997/000035
Publication Date:
August 20, 1998
Filing Date:
February 18, 1997
Export Citation:
Assignee:
G PREDPR MO Z POLIMETALLOV (RU)
CHERNYSHOV VLADIMIR MIKHAILOVI (RU)
RYAKHOVSKIKH VIKTOR IVANOVICH (RU)
POSLAVSKY ALEXANDR OLEGOVICH (RU)
PONOMARENKO VIKTOR BORISOVICH (RU)
MAKOVSKY VLADIMIR DANILOVICH (RU)
OSADCHY ALEXANDR IVANOVICH (RU)
LUNIN GLEB LEONIDOVICH (RU)
VASILCHENKO IVAN NIKITOVICH (RU)
CHERNYSHOV VLADIMIR MIKHAILOVI (RU)
RYAKHOVSKIKH VIKTOR IVANOVICH (RU)
POSLAVSKY ALEXANDR OLEGOVICH (RU)
PONOMARENKO VIKTOR BORISOVICH (RU)
MAKOVSKY VLADIMIR DANILOVICH (RU)
OSADCHY ALEXANDR IVANOVICH (RU)
LUNIN GLEB LEONIDOVICH (RU)
VASILCHENKO IVAN NIKITOVICH (RU)
International Classes:
G21C7/10; G21C7/103; G21C7/24; (IPC1-7): G21C7/10; G21C7/24
Foreign References:
| US4699756A | 1987-10-13 | |||
| FR1574399A | 1969-07-11 | |||
| US4451428A | 1984-05-29 |
Other References:
PONOMARENKO V.B. et al., Organy Regulirovanya i SVP Yadernykh Reaktorov VVER-1000 i Puti Ikh Usovershenstvovanya Voprosy Atomnoi Hauki i Tekhniki. Ser. Fizika Radiatsionnykh Povrezhdenny i Radiasionnoe Material-Ovedenie, 1994, Vyn. 2/62, 3/63, pages 95-112.
See also references of EP 0977206A4
See also references of EP 0977206A4
Attorney, Agent or Firm:
Patent, Law Firm 'JUS' (Moscow, 9, RU)
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