AP1000机组反应堆压力容器顶盖在役检查

In-service Inspection of the AP1000 Reactor Vessel Head

通过Davis-Besse核电站顶盖降级事件的经验反馈,讨论了压水堆核电站反应堆压力容器顶盖及贯穿件降质的机理。分析了AP1000机组反应堆压力容器顶盖及贯穿件在材料和结构上的优化。阐述了AP1000机组反应堆压力容器顶盖及贯穿件的在役检查策略、检查要求、检查人员、检查程序、检查设备及验收标准。

According to Davis-Besse reactor pressure vessel head degradation,the degradation mechanism of PWR reactor vessel head and its penetrative components are discussed,and the improving methods for materials and structures of AP1000 reactor vessel head and penetrative components are outlined.Also,the in-service inspection method,inspection requirements,inspection personnel,inspection procedures,inspection equipments and acceptance criteria of AP1000 reactor vessel head and penetrative components are described in detail.