东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (9): 1360-1364.DOI: 10.12068/j.issn.1005-3026.2019.09.025

• 资源与土木工程 • 上一篇    下一篇

轴流旋风分离器特性的数值模拟

林秀丽1， 曹亚平2， 夏祉君1， 柳静献1   

  1. (1. 东北大学 资源与土木工程学院， 辽宁 沈阳110819; 2. 山西能源学院 安全工程系， 山西 晋中030600)
  • 收稿日期:2018-09-29 修回日期:2018-09-29 出版日期:2019-09-15 发布日期:2019-09-17
  • 通讯作者: 林秀丽
  • 作者简介:林秀丽(1974-)，女，辽宁抚顺人，东北大学副教授； 柳静献(1966-)，男，河北元氏人，东北大学教授.冯明杰(1971-)，男，河南禹州人，东北大学副教授; 王恩刚(1962-)，男，辽宁沈阳人，东北大学教授，博士生导师.
  • 基金资助:
    国家“十三五”重大专项(2016YFC0801704，2016YFC0203701).

Numerical Simulation on Characteristics of the Axial Flow Cyclone Separator

LIN Xiu-li1， CAO Ya-ping2， XIA Zhi-jun1， LIU Jing-xian1   

  1. 1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. Department of Safety Engineering， Shanxi Institute of Energy， Jinzhong 030600， China.
  • Received:2018-09-29 Revised:2018-09-29 Online:2019-09-15 Published:2019-09-17
  • Contact: LIN Xiu-li
  • About author:-
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摘要： 为了研究轴流旋风分离器的性能，主要分析2.5~6m/s风速下叶片间距、旋转角度及排尘间隙对旋风分离器阻力和切向速度的影响.结果表明:旋风分离器的阻力随风速的增大而增大;叶片旋转角度对旋风阻力影响不大，但旋转角度的增加可增大最大切向速度;叶片间距变化对阻力和切向速度的影响很大，在6m/s风速下，叶片间距12mm较16mm时阻力增加31.1%，切向速度增大11%;排尘间隙变大可明显增大阻力，对切向速度影响较小.叶片间距为16mm，叶片旋转圆周角为90°，排尘间隙为7.15mm的旋风分离器对A4粗灰的分离效率可达85%以上.本研究结果为轴流旋风分离器几何参数设计提供了依据.

关键词: 轴流旋风分离器, 阻力, 切向速度, 叶片形式, 排尘间隙

Abstract: The characteristics of an axial flow cyclone separator were studied. The effects of blade space， rotating angle and dust exhaust gap on the pressure drop and tangential velocity of the cyclone separator at 2.5~6m/s inlet air velocity were analyzed. The results showed that the pressure drop of the cyclone separator increases with the increase of inlet air velocity. The rotating angle of blades has little effect on the pressure drop of the cyclone， while the maximum tangential velocity increases with the increase of the rotating angle. The pressure drop and tangential velocity are greatly influenced by the change of blade space， and the pressure drop increases 31.1% when the blade space changes from 16mm to 12mm at 6 m/s inlet air velocity， while the tangential velocity increases 11%. Larger dust exhaust gap can significantly increase the pressure drop， and has little effect on tangential velocity. The efficiency of the cyclone separator with 16mm blade space， blade rotating angle of 90 degrees and dust exhaust gap of 7.15mm for A4 coarse dust can reach more than 85%. The results provide a basis for designing geometric parameters of axial flow cyclone separator.

Key words: axial flow cyclone separator, pressure drop, tangential velocity, blade type, dust exhaust gap

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