新型梁斗合一电除尘器灰斗试验研究与分析  

Experimental Research and Analysis of the New Bucket-Beam Electrical Precipitator Hopper

作　　者：张辰茜 赵建昌[1] ZHANG Chenqian;ZHAO Jianchang(School of Civil Engineering ,Lanzhou Jiaotong University,Lanzhou730070,China)

机构地区：[1]兰州交通大学土木工程学院,兰州730070

出　　处：《机械设计与研究》2018年第6期188-192,197,共6页Machine Design And Research

摘　　要：进行了1∶1足尺新型梁斗合一电除尘器灰斗模型的注水加载试验,并对灰斗大梁应力,斗壁应力,灰斗大梁挠度,斗壁位移等试验数据及现象进行了深入剖析。通过建立以材料各项同性为基础的MIDAS/GEN有限元模型对试验模型进行模拟分析,数据相近,规律基本吻合。研究表明:斗壁对组合梁刚度的贡献不可忽视,应在今后设计中考虑协同作用;灰斗大梁应力分布并不均匀,其顶部翼缘处应力较大;灰斗在受满载工况下,斗壁竖向位移远大于横向位移。最后,根据试验结果及有限元模型对比分析给出优化后的新型梁斗合一体系模型,在保证可靠性的前提下,减少了约8%的用钢量。A1: 1full-scale new bucket-beam electrical precipitator hopper model was tested under water loading to study the mechanical behavior including bucket beam stress and deflection,bucket wall stress and displacement,which considers isotropic materials,was used to simulate the test model.The results of MIDAS/GEN agreed well to the test results.The analytical results show that: the bucket wall on the beam stiffness contribution can not be ignored,should consider the synergistic effect in the future design.Bucket beam stress distribution is not uniform,the top flange stress is large.An under full load condition,the vertical displacement of bucket wall is much larger than the transverse displacement.Finally,according to the comparison between experimental results and finite element models,a new system is presented,which reduces the steel consumption by about 8% on the premise of guaranteeing reliability.

关 键 词：除尘器灰斗 梁斗合一 有限元分析 协同作用 

分 类 号：TU834.64[建筑科学—供热、供燃气、通风及空调工程]