烟气脱硫吸收塔考虑固液耦合的动力特性分析  

Analysis of the Dynamic Properties of Absorber Tower Considering the Liquid-Structure Coupling

作　　者：孙永胜 王利平[2] 张猛[3] 

机构地区：[1]国电郑州机械设计研究所,郑州450052 [2]河南建筑职业技术学院,郑州450007 [3]郑州大学土木工程学院,郑州450001

出　　处：《河南科学》2008年第12期1509-1512,共4页Henan Science

基　　金：国家自然科学基金项目(50709030);河南省教育厅科技攻关项目(2008A560015)

摘　　要：烟气脱硫吸收塔结构形式复杂,掌握其动力特性是进行该类结构设计的重要基础.根据有限元理论,对带有高塔的烟气脱硫吸收塔,从如何考虑浆液影响的角度建立不同的有限元模型,对其进行动力特性分析,且考虑了内部浆液对吸收塔结构固有频率的影响.分析结果表明,浆液的存在对吸收塔高阶频率影响较大,对低阶频率,尤其是基频影响很小,偏差在1%以内,当要了解吸收塔的低阶频率时,为简化计算,可以不考虑浆液的影响.The structural form of electric plant smoke desulphurization absorber tower is complicated. It is important to study the dynamic properties of the structure. According to the theory of finite element, the different finite element model of smoke desulphurization absorber tower with high tower is established referring to whether considering the slurry in this paper. Then the dynamic properties analysis is computed and the effect of slurry affect on the absorber tower is analyzed. The optimum technological conditions are： the effect of slurry affect on the higher step frequency of the absorber tower is higher, but the effect on the lower step frequency is very small, the maximum discrepancy of the calculated results is 1%. So when we only want to know the lower step frequency, the slurry can be discarded to simplify the calculating.

关 键 词：烟气脱硫吸收塔 有限元法 动力特性 固液耦合 

分 类 号：TU391[建筑科学—结构工程]