气喷旋冲吸收塔整体结构应力计算分析.pdfVIP

气喷旋冲吸收塔整体结构应力计算分析 1 2 1 刘道清 王 珺 沈晓林 (1. 宝钢股份有限公司研究院，上海 201900 ；2. 复旦大学材料科学系，上海 200433) 1 摘 要 气喷旋冲吸收塔整体结构复杂，脱硫过程中受烟气压力、自重以及浆液压力等其它外载的作用，对塔体 结构进行应力分析和强度校核是吸收塔结构设计的重要步骤。针对某实际的气喷旋冲吸收塔结构，考虑了两种常规 的最不利工况，采用有限元法对塔整体结构进行了应力计算分析。分析中，用梁单元和壳单元建立了完整的吸收塔 模型。基于计算结果和相关结构规范，对关键结构应力强度和塔壁失稳进行了校核。分析结果表明，吸收塔结构设 计满足实际应用需求，设计中的塔壁厚度偏于安全。 关键词 气喷旋冲吸收塔 有限元 结构完整性 强度校核 薄壁失稳 The Stress Analysis for Integral Structure of Swirl-Jet Absorbing Tower Liu Daoqing1 Wang Jun2 Shen Xiaolin1 (1.RD Center, BaoShan Iron Steel Co., Ltd., Shanghai, 201900; 2.Department of Material Science, Fudan University, Shanghai, 200433) Abstract The Swirl-Jet absorbing tower has complex structures. For the tower will be bearing the flue gas pressure, dead weight, slurry pressure and other external loads during desulphurization process, the stress analysis and strength verification are critical steps in the tower structures’ design. According to an actual Swirl-Jet absorbing tower in engineering, the stress analysis using finite element method for the absorbing tower was carried out in this work by considering the two conventional worst working conditions of the tower. The analysis model was set up for the whole absorbing tower structures with beam and shell elements. Based on the computational results and corresponding structure standards, the key structure stress and side-wall stability of absorbing tower were verified. The analysis results indicate that the structure design can fully satisfy the engineering application requirem