This paper analyzes the root cause for the accelerated aging of condenser rubber expansion joint according to the actual condition in Daya Bay Nuclear Power Plant and the experience feedback from overseas nuclear power plants.Life assessment is taken for rubber expansion joints and some specific management strategies and suggestions are recommended.The result shows that the aging mechanism of the rubber expansion joints include the embrittlement aging,fatigue aging,contacted media aging,stress fatigue and thermal aging caused by mechanics and environment.Embrittlement aging is the main aging mechanism.

针对核电站预防维修大纲的编制给出了具体的流程,并结合目前国内外的维修优化方法,提出了大纲优化的策略和方法,包括优化原则和RCM分析方法应用等内容。

This paper introduces the background for the ongoing research on accelerated ageing management (AAM) technology for important and susceptible components in Daya Bay nuclear power plant (NPP) and Lingao NPP. The technical procedure, the work architecture and the interfaces with existing operation and maintenance system in NPPs are also detailed. Finally, some representative examples of the use of AAM to solve practical operational issues are presented, before concluding on propositions for the future development of this technology. Keyword: accelerated ageing; accelerated ageing management; important and susceptible components; maintenance strategies

在阐述以可靠性为中心维修(RCM)和状态维修(CBM)基础上,研究两者之间的关系与方法的融合,以及CBM在RCM中的应用。

根据核电站实际生产需要提出实施战略备件储备的优化方案、扩展供应思路与渠道,通过建立和实施共享协议制度、备件库存管理信息系统和联合采购等策略,不仅可节约巨大经济成本、提高电站的经营效益,也能提高企业的竞争实力。