Title:
PROTECTING GUIDE STRUCTURE OF REACTOR CONTROL ROD
Document Type and Number:
Japanese Patent JP3310787
Kind Code:
B2
Abstract:
PURPOSE: To prevent a reactor control rod from being vibrated and excited by a coolant flow, and damaged.
CONSTITUTION: A plurality of control rod elements 1 connected to a spider arm in a fringe form are independently housed in slender protecting pipes 21, and guided thereby at the insertion into a reactor core or the drawing from the reactor core. A slit 25 allowing the pass of the control rod through the spider arm is axially extended and formed on tlte protecting pipe 21, and the corner parts of both the end parts 21a, 21b are rounded or chamfered.
Inventors:
Ban Minoru
Kenji Umeda
Noboru Kubo
Tomohiro Ito
Kenji Umeda
Noboru Kubo
Tomohiro Ito
Application Number:
JP19685794A
Publication Date:
August 05, 2002
Filing Date:
August 22, 1994
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
G21C7/117; G21C7/14; (IPC1-7): G21C7/117; G21C7/14
Domestic Patent References:
| JP6288997U | ||||
| JP310294U |
Attorney, Agent or Firm:
Mitsuteru Soga (2 outside)