核电机组长期临停下受影响设备的预防性维修策略动态调整方法研究

针对国内核电厂面临的临时停机（简称临停）现状以及临停所导致的设备可靠性降低的问题，本研究提出了受临停影响设备的预防性维修策略动态调整方法。研究了受临停影响的设备清单识别方法，对受影响设备进行了分类并制定了设备类维修策略模板，最后对维修策略模板进行优化调整后实施应用，并结合具体案例进行了分析说明。结果表明，对受临停影响的设备维修策略进行调整有利于增加受影响设备的运行可靠性和维修有效性，为核电厂长期临停时的设备可靠性分析提供了基础。 

Study on Dynamic Adjustment Method of Preventive Maintenance Strategy for Affected Equipment under Long-Term Temporary Outage of Nuclear Power Units

This paper proposes a method for the dynamic adjustment of preventive maintenance strategies for equipments affected by unit temporary outage in view of the current situation of domestic nuclear power plants and the degradation of equipment reliability caused by temporary outage. This paper studies the identification method of equipment list affected by temporary shutdown, classifies the affected equipment and formulates the equipment maintenance strategy template. Finally, it optimizes and adjusts the maintenance strategy template to implement the application, and analyzes and explains the specific case. The results show that the adjustment of maintenance strategies for equipments affected by unit temporary outage can increase the operating reliability and maintenance effectiveness, which lays the foundation for the equipment reliability analysis during the long-term downtime of nuclear power plant units.