中国机械工程 ›› 2011, Vol. 22 ›› Issue (20): 2481-2485.

• 机械基础工程 • 上一篇    下一篇

黏性液体三次雾化的试验研究

杨伟红1,2;宋锦春1;陈建文1;佟琨1
  

  1. 1.东北大学,沈阳,110004
    2.辽宁工程技术大学,阜新,123000
  • 出版日期:2011-10-25 发布日期:2011-11-02
  • 基金资助:
    国家自然科学基金资助项目(50875040)
    National Natural Science Foundation of China(No. 50875040)

Experimental Research on Tertiary Atomization of Viscous Liquid

Yang Weihong1,2;Song Jinchun1;Chen Jianwen1;Tong Kun1
  

  1. 1.Northeastern University,Shenyang,110004
    2.Liaoning Technical University,Fuxin,Liaoning,123000
  • Online:2011-10-25 Published:2011-11-02
  • Supported by:
    National Natural Science Foundation of China(No. 50875040)

摘要:

对黏性液体进行了超音速二次雾化和基于撞击流技术的三次雾化试验,并对三次雾化的影响因素进行了分析。分析结果表明:随着进气压力和压缩空气流量增大,油雾颗粒粒径变小;随着进气压力增大,油雾浓度逐渐变小;随着韦伯数增大,粒径变化率变小。当韦伯数小于5.376时,粒径变化率大于零;当韦伯数大于5.376时,粒径变化率小于零;当韦伯数为22.81时,油雾颗粒粒径变化率绝对值最大,且喷嘴喉口直径为影响粒径变化率大小的主要因素。

 

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Abstract:

Experimental research on supersonic secondary atomization of viscous liquid and tertiary atomization of viscous liquid were carried out based on impinging-stream technology.Influence factors of tertiary atomization were analyzed. The results show that oil mist particle diameter decreases with the increase of intake pressure and compressed air flow; oil mist concentration decreases gradually with the increase of intake pressure; change rate of particle diameter decreases with the increase of Weber number.When Weber number is less than 5.376,change rate of particle diameter is larger than zero;
when Weber number is more than 5.376, change rate of particle diameter is less than zero; when Weber number is at 22.81,maximum absolute value of change rate of particle diameter occurs and throat diameter of nozzle is the main influence factor of change rate value of particle diameter.

Key words: viscous liquid, supersonic atomization, impinging stream, orthogonal experiment, particle diameter

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