東海再処理施設における換気設備の負圧監視と保全管理
Negative Pressure Monitoring and Maintenance Management of theVentilation System in the Tokai Reprocessing Plant
著者:
堂村 和幸 Kazuyuki DOMURA 算用子 裕孝 Hirotaka SANYOSHI 福有 義裕 Yoshihiro FUKUARI 伊波 慎一 Shinichi INAMI
発刊日:
公開日:
Maintenance ManagementNegative PressureTokai Reprocessing PlantVentilation System
概要
Radioactive materials in nuclear plants are confined in the facility at a negative pressure less than atmospheric pressure, which is maintained by the ventilation system. Therefore, it is important for nuclear safety to keep the negative pressure an d to monitor the condition of the ventilation system. Also, immediate maintenance is essential when the ventilation system fails. In the Tokai Reprocessing Plant, monitoring the negative pressure in the facilities and the condition of the ventilatio n system is performed using the centralized monitoring system. In addition, maintenance management has been performed by analyzing the failure data, which is accumulated in the past equipment maintenance, and by applying condition-based maintenance methods. As a result of such activities, the rate of failure in the ventilation system has been reduced. This paper describes the monitoring method for negative pressure and the maintenance management being conducted in the Tokai Reprocessing Plant.
