覆尘滤袋综合渗透率的分形求解

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蔡卫东¹，谭志洪¹，熊桂龙¹，刘丽冰^2*，魏林生¹

1. 南昌大学资源环境与化工学院，江西南昌 330031 2. 河北工业大学机械工程学院，天津 300130

收稿日期:2018-12-23修回日期:2019-03-11出版日期:2019-10-22发布日期:2019-10-22
通讯作者:刘丽冰

基金资助:国家自然科学基金资助项目 (U1302274);江西省自然科学基金重点项目;江西省自然科学基金青年资助项目

Fractal solution of comprehensive permeability of dust-covered filter bag

Weidong CAI¹, Zhihong TAN¹, Guilong XIONG¹, Libing LIU^2*, Linsheng WEI¹

1. School of Resources Environment and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, China
2. School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China

Received:2018-12-23Revised:2019-03-11Online:2019-10-22Published:2019-10-22

Supported by:Projects (U1302274) supported by the National Science Foundation of China

摘要/Abstract

摘要： 基于分形理论计算滤袋及滤饼构成的综合渗透率，描述其渗流特性。结合滤饼扫描电镜实验与图像处理技术分析滤饼孔隙结构；利用改进的毛细管模型近似模拟滤饼孔隙通道，根据流体动力学原理得到了滤饼渗透率的分形表达式，并由达西定律计算得覆尘滤袋综合渗透率，并用其对袋式除尘器流场压力分布进行数值模拟。结果表明，滤饼孔隙结构具有自相似特点。覆尘滤袋综合渗透率为(1.615~4.784)×10?12 m2，模拟所得的滤袋内外压差与实验结果的相对误差小于26%。覆尘滤袋综合渗透率计算方法合理，可较好地描述复合多孔介质的渗流特性。

引用本文

蔡卫东谭志洪熊桂龙刘丽冰魏林生. 覆尘滤袋综合渗透率的分形求解[J]. 过程工程学报, 2019, 19(5): 997-1005.
Weidong CAI Zhihong TAN Guilong XIONG Libing LIU Linsheng WEI. Fractal solution of comprehensive permeability of dust-covered filter bag[J]. Chin. J. Process Eng., 2019, 19(5): 997-1005.

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