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旋风分离器排气管最佳插入深度的实验与分析

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杨景轩, 马强, 孙国刚. 旋风分离器排气管最佳插入深度的实验与分析[J]. 环境工程学报, 2013, 7(7): 2673-2677.
引用本文: 杨景轩, 马强, 孙国刚. 旋风分离器排气管最佳插入深度的实验与分析[J]. 环境工程学报, 2013, 7(7): 2673-2677.
shu
Yang Jingxuan, Ma Qiang, Sun Guogang. Experiment and analysis of vortex finder optimum length in cyclone separator[J]. Chinese Journal of Environmental Engineering, 2013, 7(7): 2673-2677.
Citation: Yang Jingxuan, Ma Qiang, Sun Guogang. Experiment and analysis of vortex finder optimum length in cyclone separator[J]. Chinese Journal of Environmental Engineering, 2013, 7(7): 2673-2677.
shu

旋风分离器排气管最佳插入深度的实验与分析

  • 1.

    中国石油大学(北京)重质油国家重点实验室, 北京 102249

  • 2.

    中海石油研究中心, 北京 100027

  • 基金项目:

  • 中图分类号: TQ021.1

Experiment and analysis of vortex finder optimum length in cyclone separator

  • 1.

    State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

  • 2.

    China National Offshore Oil Corporation Research Center, Beijing 100027, China

  • Fund Project:

  • 摘要: 采用实验方法考察物料特性、入口气速、排气管直径、入口截面积4种因素对排气管最佳插入深度的影响。实验结果表明,排气管的最佳插入深度主要受粉料中位粒径和粒径分布的影响,中位粒径越小,包含的小粒径颗粒越多,最佳插入深度越大,而与其他3项参数无关。另外,插入深度在最佳位置附近变化时,效率波动不大,远离最佳位置后,效率大幅下降,并且在大排气管直径,大入口条件下,效率对插入深度更为敏感。短路流和内旋流二次分离的协同作用是形成以上现象的主要原因。
    Abstract: Cold experiments were carried out to study the effects of powder properties including medium diameter of particle and size distribution of powder, inlet velocity and structure parameters including the diameter of vortex finder and the area of inlet on the separation efficiency. The results showed that vortex finder optimum length was mainly affected by medium diameter of particle and granulometric distribution of powder. The smaller the medium diameter of particle was, the more the small particle were, the longer the vortex finder optimum length was. Instead, other three parameters affected the vortex finder optimum length little. Besides, when the vortex finder length came close to best value, the efficiency only decreased a little. But when the vortex finder length was far away from the best value, the efficiency would drop dramatically. The efficiency of cyclone was more sensitive with big inlet area or diameter of vortex finder. The formation of above phenomenon was attributed to a combination of short circuit flow and secondary separation of inner swirl upward flow.
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  • [1] Hugi E., Reh L.Focus on solids strand formation improves separation performance of highly loaded circulating fluidized bed recycle cyclone.Chemical Engineering and Processing,2000,39(2):263-273
    [2] Lewnard J. J., Herb B. E., Tsao T. R., et al.Effect of design and operating parameters on cyclone performance for circulating fluidized bed boilers.Fourth International Conference on Circulating Fluidized Beds.San Diego,1993.636-641
    [3] Heumann W. L.Cyclone separators:A family affair.Engineering Practice,1991, 15(4):119
    [4] 周雷.旋风分离器新型排气芯管的研究开发.北京:中国石油大学(北京)硕士学位论文,2007.50 Zhou Lei. Research and development of new type vortex finder of Cyclone separator. Beijing:Master Dissertation of China University of Petroleum-Beijing, 2007.50 (in Chinese)
    [5] Zhu Y., Lee K. W.Experimental study on small cyclones operating at high flow rates.J.Aerosol Sci.,1999,30(10):1303-1315
    [6] 马强. 旋风分离器排气芯管插深的试验与流场模拟. 北京:中国石油大学(北京)硕士学位论文,2009.35 Ma Qiang. Effects of vortex finder insertion on the cyclone performances by experiment and simulation. Beijing:Master Dissertation of China University of Petroleum-Beijing, 2009.35 (in Chinese)
    [7] 薛晓虎,魏耀东,孙国刚,等.旋风分离器上部空间各种二次涡的数值模拟.工程热物理学报,2005,26(2):243-245 Xue Xiaohu,Wei Yaodong,Sun Guogang. Numerical simulation on the secondary eddies in the upper space of a cyclone separator. Journal of Engineering Thermophysics,2005,26(2):243-245 (in Chinese)
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    [9] 黄滨,王乐勤,焦磊,等. 升气管插入深度对旋风分离器内部流场影响的数值模拟. 化工机械,2010,37(1):53-57 Huang Bin,Wang Leqin,Jiao Lei. Numerical simulation of the influence of the lengths of exit tubes on the internal flow field of cyclone separators. Chemical Engineering & Machinery,2010,37(1):53-57 (in Chinese)
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出版历程
  • 收稿日期:  2012-04-16
  • 刊出日期:  2013-07-18
杨景轩, 马强, 孙国刚. 旋风分离器排气管最佳插入深度的实验与分析[J]. 环境工程学报, 2013, 7(7): 2673-2677.
引用本文: 杨景轩, 马强, 孙国刚. 旋风分离器排气管最佳插入深度的实验与分析[J]. 环境工程学报, 2013, 7(7): 2673-2677.
shu
Yang Jingxuan, Ma Qiang, Sun Guogang. Experiment and analysis of vortex finder optimum length in cyclone separator[J]. Chinese Journal of Environmental Engineering, 2013, 7(7): 2673-2677.
Citation: Yang Jingxuan, Ma Qiang, Sun Guogang. Experiment and analysis of vortex finder optimum length in cyclone separator[J]. Chinese Journal of Environmental Engineering, 2013, 7(7): 2673-2677.
shu

旋风分离器排气管最佳插入深度的实验与分析

  • 1. 中国石油大学(北京)重质油国家重点实验室, 北京 102249
  • 2. 中海石油研究中心, 北京 100027
  • 收稿日期:  2012-04-16
基金项目:

摘要: 采用实验方法考察物料特性、入口气速、排气管直径、入口截面积4种因素对排气管最佳插入深度的影响。实验结果表明,排气管的最佳插入深度主要受粉料中位粒径和粒径分布的影响,中位粒径越小,包含的小粒径颗粒越多,最佳插入深度越大,而与其他3项参数无关。另外,插入深度在最佳位置附近变化时,效率波动不大,远离最佳位置后,效率大幅下降,并且在大排气管直径,大入口条件下,效率对插入深度更为敏感。短路流和内旋流二次分离的协同作用是形成以上现象的主要原因。

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