强旋流场中同位素分离性能优化方法探索

项目名称： 强旋流场中同位素分离性能优化方法探索

项目编号： No.11475096

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 姜东君

作者单位： 清华大学

项目金额： 98万元

中文摘要： 随着国产离心机的应用，我国建立了自主的离心法铀浓缩体系。当前世界上分离功的价格下降明显，对单位分离功的成本控制提出了更高的要求。除了在级联、核燃料工艺流程改进等方面要进行深入研究和重新设计外，更重要的是单机分离功率的提高。考虑到工厂已有的装架及辅助设施，在同样的转子尺寸下，对单机的结构以及驱动条件进行优化以提高单机分离性能，是十分有意义的。俄罗斯的第5~8代离心机在转子参数基本不变的情况下，实现了单机分离功率增加约一倍。本项目采用数值方法对离心机流场进行分析，采用理论和实验相结合的技术路线。在不改变转子尺寸和侧壁线速度的条件下，开展内部结构以及驱动条件的优化，研究复杂条件下的单机分离性能变化规律及环流机制。本项目的开展将为深入理解离心机分离理论、提高单机分离效率、自主掌握离心机结构设计准则等提供理论参考和技术积累，对于保证我国核电安全运行有重要意义。

中文关键词： 强旋流场；同位素分离；分离性能；优化方法

英文摘要： The Uranium enrichment industry using gas centrifugeation method was found in our country with the application of the domestic centrifuge. Now the price of the separation work decreases obviously, it becomes more necessary to controll the cost of the unit separation power. Except for investagation of the cascade and centrfugation equipment,it is more important to improve the separation power of the single centrifuge using the same accessory equipments. For example, Russia centrifuge was devoloped using the same diameter, with rising of the rotor speed and the optimization of the inner structure, the separation of the sinlge machine rised about 1 time from 5 to 8 generation. In this project numerical method was used to analysis the flow-field in gas centrifuge, and the theory analysis resuts would be compared with the experiment data. Under the condition of the same size and speed of the rotor, the optimization of the inner structure and driver conditions would be performed. Based on the above work, the numerical design code package would be devoloped. The project is useful for understanding the centrifugation separation theory more deeply, and helps to improve the separation of gas centrifuge.

英文关键词： Strong rotating flow-field;Isotope separation;Separation performace;Optimization method