六ヶ所再処理工場の横型遠心ファンにおける 軸受外輪クリープの振動診断について
Vibration diagnosis for bearing creep phenomenon of horizontal shaft type ventilation fan in Rokkasho reprocessing plant.
著者:
佐々木 一人 Ichito SASAKI 瀬川 佑太 Yuta SEGAWA 吉村 定志 Sadayuki YOSHIMURA 沢田 悠 Haruka SAWADA
発刊日:
公開日:
BearingCreephorizontal shaft type ventilation fansVibration diagnosis
概要
Many number of horizontal shaft type ventilation fan system were installed and have been continuously operated in the Rokkasho reprocessing plant. The maintenance method by TBM(Time Based Maintenance) and periodical vibration diagnosis has been applied for the stable operation to keep containment function of the facilities. Although a bearing creep phenomenon of fan and motor is one of the important factors to evaluate the integrity, it has been said that it was not easy to recognize early from the monitor data of vibration trend. So in order to solve this subject, authors have evaluated “the acoustic test data and frequency analysis of acceleration parameters”. Based upon these experience, we designed the flow-chart to judge the integrity of bearings easily and applies them as the first step to Rokkasho reprocessing plant. Furthermore in near future we plan to apply this method for other continuous operated equipments such as liquid pumps and motors.
