预测性维修在重水堆设备管理中的应用

The Application and Practice of Predictive Maintenance at CANDU Equipment Management

秦山重水堆核电厂设备数量多、结构复杂,有些设备故障与运行时间无直接关系,并不能简单通过定期维修来避免这些设备失效。为了提高设备可靠性、增加设备可用率并降低维修成本,对于电厂核安全、机组发电具有重要作用的设备,应开展设备状态监测和预测性维修工作。按照各类型设备特点,采用合适的设备状态监测方法、内容和频度,发现一些设备潜在故障,主动安排这些设备进行预测性维修,优化设备维修管理。

The equipment in Qinshan CANDU unit is characterized by large number and complex structure. Some equipment failure has no relation with the operation time, it is impossible to avoid the failure of these equipment only by periodical maintenance. To improve the equipment reliability, increase the equipment usability and decrease the maintenance cost, for important equipment related to nuclear safety and generating electricity, it is required to perform condition monitoring and the predictive maintenance （PdM）. According to different characteristics of equipment, it is required to use suitable equipment condition monitoring method, content and frequency. In this way, some potential equipment failure can be found, preventive maintenance can be arranged in advance, and equipment maintenance management can be optimized.