欢迎访问过程工程学报, 今天是

›› 2014, Vol. 14 ›› Issue (1): 36-41.

• 流动与传递 • 上一篇    下一篇

导流板对旋风分离器内气固两相分离性能的影响

梁家豪 李阳 孔祥功 刘美丽   

  1. 北京石油化工学院机械工程学院 航天长征化学工程股份有限公司 北京石油化工学院机械工程学院 北京石油化工学院机械工程学院
  • 收稿日期:2013-11-07 修回日期:2013-12-31 出版日期:2014-02-20 发布日期:2014-02-20
  • 通讯作者: 刘美丽

Effect of Deflector on the Gas-Solid Separating Performance in the Cyclone Separator

LIANG Jia-hao LI Yang KONG Xiang-gong LIU Mei-li   

  1. School of Mechanical Engineering, Beijing Institute of Petrochemical Technology Changzheng Engineering Corporation, Limited School of Mechanical Engineering, Beijing Institute of Petrochemical Technology School of Mechanical Engineering, Beijing Institute of Petrochemical Technology
  • Received:2013-11-07 Revised:2013-12-31 Online:2014-02-20 Published:2014-02-20
  • Contact: LIU Mei-li

PDF

被引次数

11

摘要： 通过数值模拟对环形空间设有导流板的旋风分离器进行了研究. 与常规单入口旋风分离器相比，设置导流板显著改善了旋风分离器内的非轴对称流动，使流场的旋转中心与分离器的几何中心重合，从而抑制了旋风分离器内的涡核摆动现象. 气固两相模拟结果表明，加入导流板可明显提高旋风分离器的分离效率，尤其是对于粒径为5 mm的小颗粒，分离效率从53.4%提高到94.6%，捕集效率显著提高.

关键词: 旋风分离器, 非轴对称流动, 导流板, 分离效率

Abstract: The performance of a cyclone with deflector in annular space is studied by using numerical simulation method. Simulation results of the gas flow filed reveal that the introduction of deflector in the cyclone separator can improve the asymmetry flow greatly, when compared with traditional single inlet cyclone separator. In the cyclone with deflector, the centre of flow coincides with the geometric center, which restrains the flapping motion of vortex cone. To further study the performance of the new cyclone separator, two-phase flow is investigated by using DPM model. The simulation results show that the collection efficiency of particles is enhanced notably, especially the particles with small sizes, the efficiency of which is raised up from 53.4% to 94.6%.

Key words: cyclone separator, non-axisymmetric flow, deflector, collection efficiency