Title:
原子炉
Document Type and Number:
Japanese Patent JP6802736
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a reactor capable of easily providing a structure which can suppress jumping up of a core component by vertical vibrations.SOLUTION: A reactor includes: a core component 14 having a support structure having a plurality of connecting tubes arranged inside a reactor vessel and a support plate 12 for supporting the connecting tubes, entrance nozzles 16 inserted into the connecting tubes and a fuel rod main body 17 upper than the entrance nozzles 16; and a nozzle side stepped part 18 located between the entrance nozzle 16 and the fuel rod main boy 17 and abutting against the connecting tubes from above. The core component 14 includes: a storage part 40 provided on the nozzle side step part 18 and opened by facing the connecting tubes; and an advance/retreat part 41 stored while being protrusible downward in the storage part 40 and sinking while generating a damping force by abutting against the connecting tubes from above.SELECTED DRAWING: Figure 3
Inventors:
Akihisa Iwasaki
Kazuo Hirota
Shinichiro Matsubara
Kazuki Kawamura
Kazuo Hirota
Shinichiro Matsubara
Kazuki Kawamura
Application Number:
JP2017052406A
Publication Date:
December 16, 2020
Filing Date:
March 17, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
G21C3/33
Domestic Patent References:
| JP2071192A | ||||
| JP2017049170A | ||||
| JP2013117500A | ||||
| JP7280977A | ||||
| JP54036470A | ||||
| JP4363694A |
Attorney, Agent or Firm:
Yasushi Matsunuma
Eisuke Ito
Hiroyuki Hashimoto
Satoshi Koto
Koichiro Kamata
Taichi Hasegawa
Ryuichiro Mori
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki
Eisuke Ito
Hiroyuki Hashimoto
Satoshi Koto
Koichiro Kamata
Taichi Hasegawa
Ryuichiro Mori
Masatake Shiga
Tadashi Takahashi
Tetsuo Yamazaki