M310机组一二回路温差波动大分析与仿真

Analysis and Simulation of Large Temperature Fluctuation in the Primary and Secondary Loops of M310 Unit

M310核电机组在日常功率运行过程中普遍存在一二回路温差偏大的情况。一方面造成R棒频繁动作,有R棒磨损和加剧一回路氙振荡的风险;另一方面使操纵员在控制一回路温度方面难以把握,无法使一回路温度保持在较好的区间内。本文通过对一回路平均温度控制系统进行研究仿真,分析出了导致一二回路温差波动大的主要因素。同时该仿真及研究方法简单易懂,为工程技术人员解决同类问题提供了新思路。

In the daily power operation of M310 nuclear power unit,the temperature difference between the primary and secondary circuits is large.On the one hand,the frequent action of the R-rod results in the risk of wearing of the R-rod and the increase of the xenon oscillation in the primary circuit,and on the other hand,it makes difficult for the operator to control the temperature of the primary circuit,the temperature of the primary circuit can not be kept in a good range.In this paper,the main factors that lead to the large fluctuation of the temperature difference between the primary and secondary circuits are analyzed through the study and simulation of the primary circuit average temperature control system.At the same time,the simulation and research method is fast,which provides a new idea for engineers and technicians to solve similar problems.