后处理工艺Purex流程计算机模拟研究现状及展望

利用与Purex流程相关的基础数据,开展Purex流程计算机模拟研究并形成模拟程序,能够开展工艺条件分析和工艺优化工作,具有重要的应用价值。国外对于此类研究开展的较早,在分配比模型研究上形成了以Richardson模型为代表的半理论模型;混合澄清槽和脉冲萃取柱的计算机模拟也分别在全混模型和扩散模型的基础上开展了大量的研究工作,形成了较多的模拟程序。我国开展此类研究稍晚,仅在分配比模型和混合澄清槽模拟方面开展了部分研究工作,与国外存在较大的差距。

Application Status and Prospect of Computer Simulation of Purex

It is so important to do research on the computer simulation of Purex used in nuclear fuel reprocessing system based on the datum relating to Purex since the simulated program can be used in analyzing the influence of input parameter on Purex and optimizing the input parameter of Purex.In other countries,such studies carried out earlier,a semi-theoretical model named Richardson model was formed as the representative of the distribution model.Based on the stirred tank model and the dispersion model respectively,so many simulation program were developed to simulating the extraction behavior of the mixer-settler contractor and the pulsed column.Because computer simulation of Purex was carried out later in China,there are only some researches on the distribution model and the simulation of the mixer-settler contractor,a large gap is still existed.