中文摘要：

采用CFD数值模拟软件对高温热源上部接受罩的羽流温度场和速度场进行分析,比较不同工况下上部伞形接受罩对高温烟气的控制特性,同时提出合理设置排风罩位置和风量的措施。

英文摘要：

The article adopts CFD value simulation software to analyze plume temperature field and speed field of the upper receiving cover of high-temperature heat source,compares control features of high-temperature smoke by upper umbrella receiving cover under different working conditions,and comes up with measures for reasonably arranging exhaust hood position and air volume.