铀化物料桶清洗喷头的水射流分析

Water Jet Analysis on the Cleaning Nozzle of Uranium Material Barrel

针对国产铀化学浓缩物料桶清洗的喷头射流速度进行研究,目的是实现喷头固定位置清洗物料桶,避免人员与清洗过程飞溅的物料直接的接触,保障作业安全和员工的身心健康。铀化物料桶的桶内面积较大,要求射流覆盖面广、打击力大、水射流射较远。利用FULENT计算软件,基于计算流体力学的方法,采用VOF体积分数模型,对喷头射流进行数值模拟分析,研究不同的入口速度、不同距离下对壁面的打击效果的影响。研究结果表明不同射流速度,射流与清洗目标的距离均对清洗效果有一定的影响,为物料桶的清洗提供一定的理论指导。

In this article,the nozzle jet velocity for cleaning the domestic uranium chemical enriched material barrel is mainly studied in order to achieve the goal of cleaning the material barrel at a fixed position of the nozzle,avoiding the direct contact between personnel and the splashed material during the cleaning process,and ensuring the safety of operation and the physical and mental health of employees. The uranium material barrel has a large internal area,which requires wide jet coverage,large impact force and far water jet. In this paper,based on the method of computational fluid dynamics,the FULENT calculation software and the VOF volume fraction model are used to perform the numerical simulation analysis on the nozzle jet so as to study the impact of different inlet velocities and different distances on the wall hitting effect. The research results show that different jet velocities and the distance between the jet and the cleaning target have a certain influence on the cleaning effect. This study would provide certain theoretical guidance for the cleaning of the material barrel.