Title:
PROTECTIVE DEVICE IN REACTOR CONTAINER
Document Type and Number:
Japanese Patent JP2635856
Kind Code:
B2
Abstract:
PURPOSE: To prevent a communication hole of a pedestal erected in a container from being blocked up by a falling object by providing a supporting structure unit in the communication hole and by installing a protective structure body on this unit so that it projects into an upper drywell.
CONSTITUTION: Inside a communication hole 6 provided in a pedestal 2, a stepladder-shaped supporting structure unit 10 is provided and a protective structure body 11 is installed on the unit. A piping cable 13 and others are fitted to the structure body 11 with a support 12 interposed, and disposition is so made as not to be affected by equipment 14 inside a container and a breaking jet 15. Besides, the unit 10 has a steel plate 16 and a horizontal beam 17 provided between it and the structure body 11, while the fore end part of the structure body 11 projects to the part of the entrance of the communication hole 6. According to this constitution, it can be avoided that the communication hole 6 is blocked up by a falling object at the time when a piping is broken, for instance.
Inventors:
FUNABASHI TOSHIHIRO
NAKAMARU TETSUYA
NAKAMARU TETSUYA
Application Number:
JP17382291A
Publication Date:
July 30, 1997
Filing Date:
July 15, 1991
Export Citation:
Assignee:
TOSHIBA KK
TOSHIBA ENJINIARINGU KK
TOSHIBA ENJINIARINGU KK
International Classes:
G21C13/024; G21C9/00; (IPC1-7): G21C13/024; G21C9/00
Attorney, Agent or Firm:
Inomata Shoaki