湿法烟气脱硫吸收塔结构设计方法

Design method of absorber of wet flue gas desulphurization

通过自身的工程实践和国内外经验的借鉴,总结出湿法烟气脱硫吸收塔钢结构的设计步骤和设计方法.本文用MIDAS作为结构分析工具,用板单元模拟吸收塔壳体、用梁单元模拟喷凝层、除雾器层等的支撑结构,采用梁板单元混合建模的方法进行塔体结构的整体分析;按照强度、整体稳定和局部稳定来控制吸收塔壳体的承载能力,并提取其他设计规范中概念相当的承载力计算公式和设计参数进行比较分析,用于吸收塔的设计计算;详细讲述了从建模到承载力验算过程中遇到的荷载输入、计算参数设置、结果输出技巧以及对计算结果的判断和取舍等问题.最后,以具体的工程实例,总结了以上的设计步骤、设计方法和应该注意的问题.

According to the own engineering practice and the foreign and domestic experience,the design method and step of absorber steel structure of wet flue gas desulphurization are summarized.the MIDAS software are adopted as the structural analysis tool;plate elements are used to simulate the shell of the absorber;beam elements are used to simulate the structure supporting the spraying layer and the mist eliminator layer;the compound modeling method with beam and plate elements is used to do the integral analysis...