Title:
LOWER REACTOR CORE INTERNAL STRUCTURE ASSEMBLY METHOD
Document Type and Number:
Japanese Patent JP2016145787
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To easily and correctly assemble a lower part reactor core structure.SOLUTION: The lower part reactor core structure assembly method for assembling a bottom plate 154 disposed at a bottom part of a reactor vessel in a lower part reactor core structure, and a plurality of shock absorbers 153 disposed between a lower part connection plate disposed at a lower side of a reactor core tank and the bottom plate 154 includes: a temporary assembling step of temporarily assembling an upper end of each shock absorber 153 to a simulation connection plate 160 on which attachment positions of each of the shock absorbers 153 to the lower part connection plate are simulated; a restricting step of restricting, with binding tools 164, mutual positions of the shock absorbers 153 temporarily assembled on the simulation connection plate 160; and a welding step of welding and attaching the lower end of each of the shock absorbers 153, which has been temporarily assembled on the simulation connection plate 160 and restricted by the restriction tools 164, to the bottom plate 154.SELECTED DRAWING: Figure 10
Inventors:
ISHIHARA SHINICHI
KATAHIRA MASAHIKO
FUKUMOTO SEIJI
MATSUBARA TORU
KITANO TOSHIKI
KATAHIRA MASAHIKO
FUKUMOTO SEIJI
MATSUBARA TORU
KITANO TOSHIKI
Application Number:
JP2015023710A
Publication Date:
August 12, 2016
Filing Date:
February 09, 2015
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
G21C13/00
Domestic Patent References:
| JPS6291893A | 1987-04-27 | |||
| JPS6327795A | 1988-02-05 | |||
| JPS63279198A | 1988-11-16 | |||
| JPH034197A | 1991-01-10 | |||
| JP2005009999A | 2005-01-13 | |||
| JP2010066216A | 2010-03-25 |
Attorney, Agent or Firm:
Hiroaki Sakai
Jun Takamura
Jun Takamura