填料塔支承圈及栅板校核有限元分析

Checking of the Supporting Ring and the Grid of a Packed Tower with Finite Element Method

应用有限元软件ANSYS建立某填料塔器支承圈及栅板的力学模型,计算分析了支承圈和栅板的强度、刚度并进行了栅板屈曲分析,得到了支承圈及栅板在工作状态下的应力和位移分布规律及屈曲临界载荷。分析表明,栅板及支承圈不会发生强度和刚度失效。但从长期使用考虑,应对栅板进行适当加固。支承圈采用矩形截面结构并不合理。

The mechanical model for the supporting ring and the grid of a packed tower is established by using finite element software ANSYS. By calculating the strength and stiffness of the supporting ring and the grid and analyzing the buckling of the grid, the stress and displacement distribution of the supporting ring and the grid under working conditions are obtained, and the critical buckling load of the grid is also obtained. Analysis shows that the strength and stiffness failure of the grid and the supporting ring will not occur. However, considering the long-term use, it is necessary to strengthen the grid properly. And it is not reasonable to use rectangular section structure for the supporting ring.