核级阀门模拟件制作及鉴定要求

Manufacture of Nuclear Safety Valve Mock-Up and Qualification Requirements

核安全级阀门作为核电厂的一类典型重要设备,一直受到国家核安全监管部门的重点关注。申请核安全级阀门民用核安全设备设计/制造许可证的单位,按照相关核安全法规的要求,需要制作对应的模拟件,并须完成全部相应的鉴定试验。但相关规定中对于模拟件的尺寸选择、需要完成的鉴定试验项目没有给出具体的要求。本文结合许可证技术审查的经验反馈,对于申请核安全级阀门设计/制造许可证的申请单位选择模拟件的尺寸参数、准备模拟件制作的前期工作及实施模拟件制作的工艺过程控制等方面提出了一些基本要求,指出鉴定试验过程中可能产生的一些问题,为核安全级阀门民用核安全设备设计/制造许可证的申请提供技术参考。

The nuclear safety class valves are very important in nuclear power plants, and the focused concern of National Nuclear Safety Administration. According to requirements of relative nuclear safety regulations, mock-ups must be made by applicants, at the same time, all corresponding qualification tests must be carried on. But no detailed requirements were given on how to choose the mock-up size and what qualification tests should be carried on. Combined with safety review practices, some basic requirements on how to choose the mock-up size, how to do the preparation work, how to control the process of manufacture and some mistakes may be made in qualification test are presented in this paper for applicants and nuclear safety technical reviewer to refer.