核电站净化树脂离子交换动力学模型和计算机模拟

Calculation and computer simulation of ion exchange kinetic model of purification resin for nuclear power plant

反应堆一回路系统采用离子交换树脂混床维持冷却剂净化要求,混床使用寿命预测最直观的方法就是建立预测模型。根据离子交换树脂的动力学过程建立了吸附模型,利用数学方法和计算机技术进行模拟计算,通过与实验数据进行对比分析,模拟出不同浓度和流速时混床的穿透曲线,评估了所建立模型的准确性。

The primary circuit system of a nuclear reactor adopts ion exchange resin mixed-bed to maintain the purification requirements of coolant.The most intuitive method to predict the service life of ion exchange resin mixed bed is to establish a prediction model.In this paper,the adsorption model was established according to the kinetic process of the ion exchange resin,and the mathematical method and computer technology were used for simulation calculation.Through comparative analysis with the experimental data,the penetration curve of the mixed bed under different concentrations was simulated,the accuracy of the established model was evaluated.