摘要
为了进一步提高泥沙分离器的分离性能,对泥沙分离器的结构进行了设计与优化。引入正交试验法重新配置和调整泥沙分离器的结构参数。选取泥沙分离器的锥体角度、溢流口直径、底流口直径、溢流口壁厚、溢流管插入深度这5个结构参数,构建L_(25)(5~6)正交试验表,并运用Fluent软件对得到的25组不同的结构模型进行数值模拟。通过结构参数对旋流分离器分离效率的影响分析以及数值计算数据的极差分析,确定这些结构参数对分离效率的影响程度大小,找到各个因素中平均影响泥沙分离效率最高的水平组合,最终确定泥沙分离器的最优结构参数组合。结果表明:各因素对泥沙分离效率的影响从大到小的排列依次为锥体角度、溢流管插入深度、溢流口直径、底流口直径、溢流管壁厚。优化后的泥沙分离器具有压力梯度较小,压力场分布均匀,从而有效地提高了其分离效率以及内部流场稳定性。
In order to further improve the separation performance of silt separator,the structure of the separator is designed and optimized.The orthogonal test was introduced to reconfigure and adjust the structure of the sediment separator parameters.Select sediment separator cone angle,the diameter of the overflow mouth,bottom diameter,the overflow mouth wall thickness,the overflow tube insertion depth structure of the five parameters,build L25(56)orthogonal test table,and using the Fluent software to get 25 groups of different structure model of numerical simulation.Through structure analysis on the influence parameters on the separation efficiency of cyclone separator and extreme difference analysis of numerical data,determine the impact of these structural parameters on the separation efficiency degree,find the factors of sediment separation efficiency of the highest level,the average impact ultimately determine the optimal structure parameters combination of silt separator.The results show that the influence of various factors on the sediment separation efficiency from large to small arranged in the order of the cone Angle,the overflow tube insertion depth,the diameter of the overflow mouth,bottom diameter,the overflow pipe wall thickness.Optimized sand separator with pressure gradient is small,uniform stress field distribution,so as to effectively improve the separation efficiency and stability of the internal flow field.
作者
杨子渝
张力
YANG Zi-yu;ZHANG Li(School of Mechanical and Electrical Engineering Lanzhou University of Technology,Gansu Lanzhou 730050,China)
出处
《机械设计与制造》
北大核心
2018年第9期79-82,共4页
Machinery Design & Manufacture
关键词
泥沙分离器
结构参数
正交试验法
数值模拟
Silt Separator
Structural Parameters
Orthogonal Design
Numerical Simulation
