电解槽端面钢结构与环境热交换体系的研究

Research on heat transfer system between ambient air and steel structure in the end of pot

在散热型铝电解槽槽壳处于担当容器及形成良好伸腿和炉帮条件的双重角色下,对于槽壳钢结构的设计除了要满足强度与刚度的需求以外,还要考虑实现槽壳侧部上方位置良好散热的工艺要求。本文基于有限元法,应用ANSYS Workbench软件从结构设计的角度,在相同工况下对三种不同的电解槽槽壳端面钢结构及其与厂房通风窗所形成的空气域进行了流固耦合热交换的计算机仿真研究.通过空气域流线温度分布、钢结构表面温度分布及空气域YOZ面空气温度分布计算结果来分析三种钢结构与环境空气的热交换效果,从中确定满足生产和工艺要求的优化结构,并提出结构细节优化的建议。

Pot shell of heat dissipation style plays dual role as container and creating condition on forming better legs and side ledges. Besides meeting de- sign requirements of strength and rigidity to steel structure of pot, the processing requirement for better thermal dissipation over the lateral side of the pot is also considered. In the perspective of structure design studies, computer simulation on heat transfer based fluid - solid coupling by the software of AN- SYS Workbench, is researched based on the finite - element method in this paper. There are three different steel structures in the end of the pot and the air shed between the pot and the ventlight of plant is also studied in the same operating condition. The computing results on the temperature distribution of streamline in air shed, the surface temperature distribution of steel structure and the air temperature distribution of plane YOZ in air shed with the three steel structures are given. So the effects on heat transfer between the three steel structures and ambient air are analyzed and the optimum structure meeting the requirements of produce and process is determined in this paper. Besides, relevant proposal on more detailed optimum structure is also put forward.