AP1000堆型核电站为美国西屋电气公司设计的第三代技术核电站,它采用双层安全壳结构,外安全壳为预应力混凝土结构,主要起辐射屏蔽和保护内部结构作用；内安全壳为钢制安全壳容器(CV),包容了反应堆、蒸汽发生器等主工艺系统设备,在事故工况下能有效防止放射性物质外泄.介绍了AP1000核电站CV内外表面用涂层的设计要求,对CV涂装用无机富锌涂层和环氧涂层的技术要求进行了讨论,并与传统的M310堆型核电站安全壳钢衬里的涂装要求进行了比较.%AP1000 nuclear power plant, the third generation technology nuclear power plant designed by USA Westinghouse Electric Corporation, adopts double-layer containment vessel structure. The outside containment vessel with a prestressed concrete structure serves as radiation shield and inner structure protection, and the inside one is a steel-made containment vessel (CV) including main process system equipment of reactor and steam producer, which effectively prevents the leakage of radioactive material under accident situation. In the article, design requirement of the coatings for outside and inside surface of C V of AP1000 nuclear power plant was introduced. The technical requirement of inorganic zinc-rich coating and epoxy coating used for CV painting was discussed. A comparison was made between coating requirements for CV of AP1000 and for CV steel lining of traditional M310 nuclear power plant.
展开▼
