Analysis of structural dynamic characteristics of high-tower flue gas desulfurization absorption tower

flue gas desulfurization absorption tower;  finite element method;  dynamic characteristics;  Structural stiffness

At present, there is no absorption tower structure design code in China, and by analyzing the relevant specifications of domestic thin-walled tower structure, it is concluded that the dynamic characteristics calculation method of thin-walled tower structure is basically reduced to two categories: only considering the structure itself and only considering the solid-liquid coupling effect. According to the finite element theory, the structure of flue gas desulfurization absorption tower with high tower is modeled by finite element and dynamic characteristics are analyzed, and the stiffness distribution is deeply understood. By comparing the results of finite element analysis with the calculation results according to the formulas in the structural specifications of various thin-walled towers in China, it is concluded that the basic self-vibration period of the absorption tower structure can be calculated according to the formula in the > of < steel tower vessels, with an error of 4.5%.