核电阀门性能测试及维修决策支持系统设计

Nuclear valves’ performance test and maintenance decision-making support system

针对核电阀门调试与维护工作对人力资源的过度占用及其经济性较差等问题,以核电电动闸阀为典型,研究了阀门的自动化性能测试问题。拟定了其测试方案,并探讨了阀门电机定子电流、阀杆推力等关键指标的监测方法;同时,考虑指标稳定性因素,改进了传统优度评价法,用于区间型性能测试结果分析;基于上述研究,构建了阀门的性能分析与维修决策模型,设计了以ARM Cortex-M4为硬件采控模块内核,以C/S(Client/Server)为人机交互端软件架构的应用系统,并进行了测试。研究结果表明:该系统能实现调试辅助、自动化性能测试及维修决策支持等功能,有助于提高核电阀门测试效率,优化维护结构。

Aiming at the problems of over-occupation of human resources and poor economic efficiency of valves’ commissioning and maintenance in nuclear power plant, an automated performance test method of valves was studied with the nuclear electric gate valve as a typical example. The test scheme was enacted, and the monitoring methods of the key index such as the stator current of the valve motor and the stem thrust were discussed. Considering the stability of the index, the traditional superiority evaluation method was improved for the analysis of interval performance test results. Based on the research above, the performance analysis and maintenance decision-making model of the valves was constructed. The application system, ARM Cortex-M4 as the core of the hardware control module and the C/S(Client/Server) mode as the human-computer interaction software architecture, was designed and tested. The results indicate that the system can realize debugging assistance, automated performance testing and maintenance decision support. It helps to improve the efficiency of valves’ testing and optimize its maintenance structure.