一起中孔工作闸门关闭失败事件分析与处置OA

When the working gate of the middle hole No.4 of a hydropower project was closed after completing water supply to the downstream hydropower project,the working gate of the middle hole stopped falling when it fell to 6492mm,and the falling process was interrupted abnormally.Based on the detailed analysis of the drop flow of the middle hole working gate and the exit/putting logic of the water seal of the middle hole work-ing gate,the paper finds out that the failure of gate closing 2 relay KA4'is the reason for the failure of gate closing No.4 middle hole working gate.By replacing the relay and optimizing the operation process and other preventive measures,the failure of gate closing caused by such problems is effectively avoided.This paper pro-vides reference for the prevention and treatment of similar problems in similar hydropower projects.