Title:
使用済み核燃料再処理機器の腐食監視方法、および腐食監視装置
Document Type and Number:
Japanese Patent JP7337753
Kind Code:
B2
Abstract:
To provide a corrosion monitoring method and a corrosion monitoring device, enabling corrosion of austenitic stainless steel in spent nuclear fuel reprocessing equipment to be monitored with a higher degree of accuracy than ever before.SOLUTION: A device for monitoring corrosion of the spent nuclear fuel reprocessing equipment comprises: monitors 11,12,13 measuring a corrosion potential of the reprocessing equipment in liquid-contact with nitric acid solution; and a determination device 20 determining whether or not a corrosion potential measured by the monitors 11,12,13 is equal to or larger than a threshold determined on the basis of the nitric acid concentration of the nitric acid solution and an excessive passivation potential of the reprocessing equipment to be measured.SELECTED DRAWING: Figure 6
Inventors:
Naoto Shigenaka
Tetsuo Fukasawa
Tetsuo Fukasawa
Application Number:
JP2020102561A
Publication Date:
September 04, 2023
Filing Date:
June 12, 2020
Export Citation:
Assignee:
Hitachi ge Nuclear Energy Co., Ltd.
International Classes:
G01N17/00
Domestic Patent References:
| JP8220087A | ||||
| JP6201635A | ||||
| JP60033370A |
Attorney, Agent or Firm:
Patent Attorney Corporation Kaichi