核电厂长燃料循环项目中仪表漂移计算方法的研究

摘要

Refueling cycle extension project is one of the effective ways to improve economy of the nuclear power plant,and instrument drift calculation is the emphasis and difficulty in the demonstration project.This paper combines the experience of the nuclear power plant to carry out refueling cycle extension,and discusses the methods of instrument drift calculation. Then by using the experience feedback method,the data of instruments and channels are collected,filtrated,classified. Final y the effective completion of the calculation effectively proves the running stability and reliability of the instrument control system after refueling period extended from 12 months to 18 months .%　　开展长燃料循环项目是提高核电厂运行经济性的有效途径之一，而仪表漂移计算分析是该项目论证中的重点和难点。本文结合秦山第二核电厂开展长燃料循环周期改造的实际经验，对仪表漂移计算的方法进行了探讨，采用经验反馈法对仪表及通道进行了数据收集、筛选、分类，最终有效完成了计算分析，有力地论证了换料周期从12个月延长到18个月后仪表控制系统运行的稳定性和可靠性。