受限空间气泡雾化尘-雾粒径耦合试验研究

doi:10.16265/j.cnki.issn1003-3033.2017.03.023

中国安全科学学报 ›› 2017, Vol. 27 ›› Issue (3): 129-134.doi: 10.16265/j.cnki.issn1003-3033.2017.03.023

受限空间气泡雾化尘-雾粒径耦合试验研究

赵晓亮^1,2 副教授, 齐庆杰³ 教授, 葛少成^3,4 教授, 韩方伟^3,4 讲师, 吕雪¹, 毕文艺¹

1 辽宁工程技术大学环境科学与工程学院,辽宁阜新 123000
2 辽宁省煤炭资源安全开采与洁净利用工程研究中心辽宁阜新 123000
3 辽宁工程技术大学安全工程及技术学院,辽宁阜新 123000
4 矿山热动力灾害与防治教育部重点实验室辽宁阜新 123000

收稿日期:2016-11-10 修回日期:2017-01-12 发布日期:2020-11-22
作者简介:赵晓亮 (1981—),安徽濉溪人,博士,副教授,主要从事环境污染控制技术工作。 E-mail:zhaoxiaoliang2008@126.com。
基金资助:
第五批国家基金培育专项基金资助(23160028T);国家自然科学基金资助(51274116);辽宁省重大学科平台基金资助(LNTU15KF13);辽宁省教育厅科研项目(LJYL020)。

Experimental study on coupling relation between effervescent atomization droplet size and particle size of dust in confined space

ZHAO Xiaoliang^1,4, QI Qingjie², GE Shaocheng^2,3, HAN Fangwei^2,3, LYU Xue¹, BI Wenyi¹

1 Environmental Science and Engineering Department, Liaoning Technical University, Fuxin Liaoning 123000, China
2 Safety Science and Engineering Department, Liaoning Technical University,Fuxin Liaoning 123000,China
3 Key Laboratory of Mine Thermo-Motive Disaster and Prevention, Ministry and Education,Fuxin Liaoning 123000,China
4 Research Center of Coal Resources Safe Mining and Clean Utilization of Liaoning,Fuxin Liaoning 123000,China

Received:2016-11-10 Revised:2017-01-12 Published:2020-11-22

摘要/Abstract

摘要： 为揭示细颗粒粉尘与雾滴粒径之间对位配置降尘规律,建立受限空间气泡雾化尘-雾粒径耦合试验系统,采用Spraytec粒度仪、直径为1.5 mm的内气外液型喷嘴等仪器,模拟风流扰动下无尘源、释放煤质尘源2种状态6种气液比(ALR)试验条件,测试研究粉尘粒径、雾滴粒径(X_NS)及降尘效率之间的影响关系。数值拟合得到ALR、X_NS分别与全尘效率(η)的Gompaertz、Parabola函数关系式,以及ALR、X_NS分别与4个粒径区间的分级降尘效率(η_＜_{2 μm}、η_{2~5 μm}、η_{5~10 μm}、η_＞_{10 μm})的Gompaertz函数关系式。模拟得出捕集呼吸性粉尘(Stokes直径d≤5 μm)ALR、X_NS分别为0.4～0.6、15～25 μm,捕集可吸入类粉尘(5 μm≤d≤10 μm)ALR、X_NS分别为0.4～0.5、25～30 μm。

关键词: 受限空间; 气泡雾化; 耦合规律; 气液比(ALR); 细颗粒粉尘

Abstract: A coupling experiment system was constructed with air and water as working fluid in confined space in order to reveal size coupling rule between droplet and fine particle. The airflow disturbance was simulated by using an Spraytec grain-size analyzer and an effervescent atomizing nozzle( the type of inner gas and external liquid ) under different conditions, which the relationships between dust removal efficiency and both dust particle size and droplet size were studied. Gompertz and Parabola functions were respectively established between ALR (ratio of air to liquid), droplet size (X_NS)and total dust removal efficiency(η) by numerical fitting.Gompertz functions were respectively established between ALR, X_NS, and η,η_{2 μm},η_{2-5 μm},η_{5-10 μm},η_{＞10 μm}. The best ALR range (0.4～0.6) for trapping respirable dust (Stokes diameter, d≤5 μm) and best ALR range(0.4～0.5) trapping inhalable dust (5 μm≤d≤10 μm) were proposed. The best X_NS range (15～25 μm) for trapping respirable dust and best X_NS range (25～30 μm) for trapping inhalable dust were proposed.

Key words: confined space, effervescent atomization, coupling rule, ratio of air to liquid (ALR), fine particle

中图分类号:

X964

赵晓亮, 齐庆杰, 葛少成, 韩方伟, 吕雪, 毕文艺. 受限空间气泡雾化尘-雾粒径耦合试验研究[J]. 中国安全科学学报, 2017, 27(3): 129-134.

ZHAO Xiaoliang, QI Qingjie, GE Shaocheng, HAN Fangwei, LYU Xue, BI Wenyi. Experimental study on coupling relation between effervescent atomization droplet size and particle size of dust in confined space[J]. China Safety Science Journal, 2017, 27(3): 129-134.

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受限空间气泡雾化尘-雾粒径耦合试验研究

Experimental study on coupling relation between effervescent atomization droplet size and particle size of dust in confined space

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