| 除尘管道内木粉尘爆炸压力传播规律研究 |
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| 引用本文： | 东淑,赵江平,赵腾飞,刘小龙.除尘管道内木粉尘爆炸压力传播规律研究[J].中国安全生产科学技术,2019,15(12):128-134. |
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| 作者姓名： | 东淑 赵江平 赵腾飞 刘小龙 |
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| 作者单位： | （西安建筑科技大学 资源工程学院，陕西 西安 710055） |
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| 基金项目： | * 基金项目: 国家重点研发计划项目（2018YFC0705306-01） |
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| 摘 要： | 为了探明除尘管道中粉尘爆炸压力的传播规律，利用自制通风除尘管道爆炸特性测试装置进行试验。研究结果表明:整个管道中粉尘爆炸压力波的传播过程可以分为自由传播阶段、管壁反射阶段和一维传播阶段；压力波在传递过程中处于边移动边生长的状态，具有压力累积效应；除尘管道中粉尘爆炸压力波幅及平均升压速率均与粒径呈负相关关系，二者随浓度变化呈现先上升后下降的趋势；利用Matlab分析了浓度、粒径对压力波的交互效应，表明二者交互作用显著。
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| 关 键 词： | 通风除尘管道 粉尘爆炸 实验装置 压力波 |
Pressure propagation laws of wood dust explosion in dust removal pipeline |
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| DONG Shu,ZHAO Jiangping,ZHAO Tengfei,LIU Xiaolong.Pressure propagation laws of wood dust explosion in dust removal pipeline[J].Journal of Safety Science and Technology,2019,15(12):128-134. |
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| Authors: | DONG Shu ZHAO Jiangping ZHAO Tengfei LIU Xiaolong |
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| Affiliation: | (College of Resources Engineering,Xi’an University of Architecture and Technology,Xi’an Shaanxi 710055,China) |
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| Abstract: | In order to find out the propagation laws of the dust explosion pressure in the dust removal pipeline,the tests were carried out by using the self made test device for the explosion characteristics of ventilation and dust removal pipeline.The results showed that the propagation process of dust explosion pressure wave in the whole pipeline could be divided into free propagation stage,pipeline wall reflection stage and one dimensional propagation stage.The pressure wave was in the state of growing while moving in the transfer process,with the pressure accumulation effect.The pressure amplitude and average pressure rise rate of dust explosion in the dust removal pipeline were negatively correlated with the particle size,and both of them tended to increase first and then decrease with the change of concentration.Finally,the interaction effect of concentration and particle size on the pressure wave was analyzed by using Matlab,which indicated that the interaction between them was significant. |
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| Keywords: | ventilation and dust removal pipeline dust explosion experimental device pressure wave |
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