「もんじゅ」におけるナトリウム漏えい検出設備の保全活動
Maintenance activities for sodium leak detection system in Monju
著者:
武藤 啓太郎 Keitaro MUTO
発刊日:
公開日:
Fast Breeder ReactorMaintenance ActivitiesMonjuSodium Leak Detector
概要
Monju is sodium cooled Fast Breeder Reactor. Monju resumed operations on May 5th, 2010 after an intermission for about 14 years following a sodium leak accident. During the shut-down period, sodium s ystem was operated and there were some troubles of sodium leak detectors. To improve leak detectors performance and reliability, detectors modification and improved maintenance activities were applie d. For example, a contact type sodium leak detector (CLD) in the secondary sodium system was modified to increase to ion-migration resistance and periodical insulation measurement was added to the mai ntenance activities. Based on the maintenance and operation experience and the technology development will be reflected to the improvement of the performance and reliability of sodium leak detectors.
