铀浓缩厂专用抽空系统的构建

本文介绍了铀浓缩厂日常吹洗操作流程和参数控制,分析了原吹洗工作中抽空存在的弊端。为提高工作效率,减少对供料净化线抽空的占用,避免使用吹洗小车抽空时连接管的反复拆装,充分考虑现场布局、操作控制参数和UF6的特点,构建了抽空系统专用于吹洗操作。经过抽空、直抽大气试验以及实际运行的考核,专用抽空系统基本满足运行所需,后续还可进一步将涡旋泵推广应用到其他铀浓缩厂系统。

抽空系统在铀浓缩厂中的应用与运行研究

本文通过案例分析来的方式,探究铀浓缩厂中抽空系统的具体应用与运行,通过对原吹洗系统工作原理的分析,发现铀浓缩厂原系统运行的弊端,不仅运行过程复杂,也浪费了大量的人力、物力资源,影响吹洗工作的效率与质量。为了真正发挥抽空系统的作用与价值,通过构建专用抽空系统展开抽空操作,对抽空系统进行优化,以便满足铀浓缩厂的生产需要。

铀浓缩厂吹洗系统优化

介绍了铀浓缩厂原吹洗系统的现状和局限。为提高效率和自动化水平,避免放射性真空泵油的产生和返流现象的出现,对原吹洗系统管线流程、远程控制进行优化,并配置干式涡旋真空泵。优化后的系统不仅提高了抽空速度,还实现了对真空泵的远程控制。经过运行试验考核,新吹洗系统满足生产所需。

Schemes for Producing 1.8 He Ⅱ and the Prediction of the Pumping Speed for the Method of Vacuum-Pumping

Cryogenic ground supporting equipment (CGSE) developed for international cooperation scientific experimental item AMS-02 is the ground supporting and cooling system, which will complete the cooling process of the superconductor of AMS-02 from ambient temperature to 1.8 K. Obtaining 1.8 K He Ⅱ by vacuum-pumping is discussed in detail and compared with the other three schemes. The results show that the scheme of vacuum-pumping not only could meet the requirement of the project much better but also has higher reliability compared with other schemes. To select the vacuum pump, the energy conservation model is presented according to the experimental system of CGSE. Therefore, the pumping speed is also determined.