AP1000核电仪表安装材料标准研究

Study on Instrumentation Installation Material Standards for AP100

为加强对AP1000核电的消化吸收,提高自主设计能力,对AP1000核岛部分仪表安装材料标准进行了分析,并和国内相关标准进行了对比,对仪表管、管件及其支撑件材料的国产化替换进行了研究,提出了施工过程中材料替换应遵循的基本原则。为尽量减少变更,AP1000核电站仪表安装相关材料优先选用原设计材料,其次是国产材料。进行材料替换时应仔细对比中美两国材料标准,化学成分应尽量接近,材料性能不得低于美标材料。

To strengthen the study on AP1000 and enhance the indigenous design ability,this paper analyzed the standards of instrumentation installation components for the Nuclear Island of AP1000 NPP,and made a comparison with Chinese standards,studied the localization of the instrumentation tube and fittings,and proposed the material substitution principles during construction. To decrease the quantity of changes materials of original design will be used for priority. If original materials can't be bought in China they can be substituted by materials of national standards. If the substitution is needed the American standards and national standards should be compared carefully. The chemical composition of two materials should be similar. And the mechanical performance of the material shouldn't be lower than the original material.