【作者】 曾青；

【导师】 王乘；

【作者基本信息】 华中科技大学 ， 水利水电工程， 2006， 硕士

【摘要】 随着大型袋式除尘器在制造、电力、冶金等行业中应用的日益广泛,其结构安全问题和材料浪费问题得到越来越多的重视。传统方法难以满足除尘器本体结构的设计要求。因此,以寻求安全省材的设计方法为目标,开展大型袋式除尘器本体结构的分析研究具有重要意义。本文在总结传统计算方法的基础上,参考概率设计方法,分析了大型袋式除尘器的荷载边界条件,计算了不同设计基准期下的花板可变荷载标准值,结合均匀化方法,通过大量数值实验,得出了不同参数对花板受力性能的影响规律,并拟合了将花板简化为加劲板的经验公式,再参考正交异性板法,最终推导了花板简化为均匀平板的经验公式。最后利用开发的花板、灰斗、框架和节点分析模块,分析了花板的设计方法、灰斗的优化措施、节点的抗震性能。本文工作为大型袋式除尘器本体结构的设计、计算和优化提供了参考依据和简化方法,对建立其高效率高精度的分析设计方法具有重要意义。更多还原

【Abstract】 The structure-security and steel-waste of Large Pulse Jet Collector, which is rapid developing in manufacturing, electric power, metallurgy, is paid more and more attention. Traditional methods can’t satisfy these requirements nowadays. Analyzing the structure of that collector and develop an effective method to deal with waste of steel and hidden troubles is of great importance.In this paper, several traditional models for computing are introduced at first. Conferring probability theory, the load boundary condition of that collector is analyzed, the characteristic values of Tubesheet in different design reference periods are computed. Based on homogenization method, after lots of numerical experiments, the mechanical characteristic of Tubesheet controlled different structure parameters is studied, and an empiristic formulas that could simplify Tubesheet to stiffen plate is gained. Then, G-M method is employed and Tubesheet is simplified to a normal plate. Finally, programs for computing of Tubesheet, hopper, frame, joist are developed, and designing of Tubesheet, optimizing of hopper, aseismatic performance of joist are analyzed.In sum, this paper provides reference and simple method for designing, computing, optimizing of Large Pulse Jet Collector, and helpful for forming an effective and accurate Collector designing system.更多还原