Title:
コンクリートキャスク
Document Type and Number:
Japanese Patent JP6751637
Kind Code:
B2
Abstract:
A concrete cask enabling suppression of occurrence of stress corrosion cracking (SCC) in a lid welded part of a canister. The concrete cask includes: a metal canister accommodating spent fuel; a concrete container body for accommodating the canister inside the container body; a cooling passage provided between the external peripheral surface of the canister and the internal peripheral surface of the container body, and allowing air for cooling the external peripheral surface of the canister to pass; and a top space provided between the top surface part of the canister, and the inside of a lid of the container body. A baffle plate for suppressing introduction of air rising through the cooling passage to the top space is provided.
Inventors:
Hironari Arai
Keisuke Okada
Masanori Goto
Keisuke Okada
Masanori Goto
Application Number:
JP2016192386A
Publication Date:
September 09, 2020
Filing Date:
September 30, 2016
Export Citation:
Assignee:
Hitachi Zosen Corporation
International Classes:
G21C19/32; G21C19/06; G21F5/005; G21F9/36
Domestic Patent References:
| JP10186092A | ||||
| JP2005207751A | ||||
| JP2005208062A |
Other References:
Alia Mohamed Al-Ghafri, et al.,Numerical Investigation to Examine Dust impacts on the Dry Cask passive Cooling under UAE harsh environmental conditions,Proceedings on the 24th International Conference Nuclear Energy fot New Europe,SI,Nuclear Energy for New Europe,2015年 9月17日,pp. 206.1-206.9
Attorney, Agent or Firm:
Morimoto International Patent Office