化工进展2026，Vol.45Issue(7)：3940-3951,12.DOI:10.16085/j.issn.1000-6613.2025-1792
气力输送系统弯管处添加辅助进气结构的影响
Research on the effect of adding auxiliary air intakes pipes at the elbow section of a pneumatic conveying systems
徐新宇 1张立栋 1苏健明 1潘禹豪 2张立峰 2宋长鹏 1姜铁骝1
作者信息
- 1. 东北电力大学能源与动力工程学院,吉林 吉林 132012
- 2. 华能青岛热电有限公司,山东 青岛 266000
- 折叠
摘要
Abstract
To address the issues of severe wear at pipeline bends and excessive energy consumption in pneumatic conveying systems,this paper proposed an innovative solution:Installing auxiliary air injection at the location of maximum bend wear.Using the computational particle-fluid dynamics(CPFD)method,a numerical model was developed to locate the maximum-wear region,and an experimental platform was constructed to verify the accuracy of model and determine the applicable parameter range for auxiliary air injection.A systematic investigation was performed to examine the effects of auxiliary air injection angle and velocity on particle motion characteristics,and pressure drop signal fluctuations were analyzed via power spectral density(PSD).The results demonstrated that,compared with the conventional approach of installing guide vanes at bends for wear control,the proposed auxiliary air injection method featured a simpler manufacturing process.Under identical conveying conditions,it achieved superior anti-wear performance,reducing the bend wear rate by up to 26.4％,while also lowering bend energy consumption by up to 6.3％.This study successfully determines the optimal structural parameters for auxiliary air injection,providing an effective technical approach for reducing energy consumption in pneumatic conveying and extending pipeline service life.关键词
气力输送/功率谱密度方法/弯管/计算颗粒流体动力学/辅助进气Key words
pneumatic conveying/power spectrum density methods/elbow pipes/computational particle fluid dynamics(CPFD)/auxiliary air intake分类
化学化工引用本文复制引用
徐新宇,张立栋,苏健明,潘禹豪,张立峰,宋长鹏,姜铁骝..气力输送系统弯管处添加辅助进气结构的影响[J].化工进展,2026,45(7):3940-3951,12.
