核电厂化学容积控制系统测量仪表周期延长论证

Demonstration of Periodic Extension of Measuring Instruments for Chemical and Volumetric Control System in Nuclear Power Plant

实现长燃料循环项目是提高核电厂经济效益的有效途径之一,而仪表定期标定周期延长的论证结果是实现换料大修周期延长的重要影响因素。针对以上问题,本文采用仪表漂移特性(AFAL)分析法对某核电厂化学和容积控制系统测量仪表的历史标定数据进行计算分析,证明了在确保核安全的前提下将仪表的标定周期由原来的12个月延长到18个月可行,适应核电厂的长燃料循环周期,提高了经济效益。

The implementation of the long fuel cycle project is one of the effective ways to improve the economic benefits of the nuclear power plant, and the instrument periodic calibration the demonstration results is an imp cycle to extend ortant factor to achieve prolonged outage cycle. To solve the above problems, this paper adopts the instrument drift characteristics（AFAL）analysis of the chemical and volume of a nuclear power plant control system of measuring instrument calibration history data analysis, proved that in the premise of ensuring nuclear safety will be the instrument calibration period from 12 months to 18 months is feasible, to adapt to the long fuel cycle the cycle of nuclear power plant, improve economic efficiency.