2010 Volume 4 Issue 6
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Zhang Zhongguo, Liu Dan, Luan Zhaokun, Cheng Yanjun, Li Jiding, Song Yun, Rong Liming. Mixing characteristic of a helical secondary flow mixer used in coagulation[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1219-1223.
Citation: Zhang Zhongguo, Liu Dan, Luan Zhaokun, Cheng Yanjun, Li Jiding, Song Yun, Rong Liming. Mixing characteristic of a helical secondary flow mixer used in coagulation[J]. Chinese Journal of Environmental Engineering, 2010, 4(6): 1219-1223.
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Mixing characteristic of a helical secondary flow mixer used in coagulation

  • 1.

    Environment Protection Research Institute of Light Industry，Beijing 100089，China；2.Department of Chemical Engineering,Tsinghua University, Beijing 100084，China

  • 4.

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences，Beijing 100085，China

  • 2.

    Department of Chemical Engineering,Tsinghua University, Beijing 100084，China

  • Received Date: 02/07/2009
    Accepted Date: 20/06/2009
    Fund Project:
  • The effects of curvature, pitch and flow rate on head loss, G and GT values were investigated for a helical secondary-flow mixer used in coagulation. The experimental results showed that the head loss, G and GT values of the mixer increased with increasing curvature and flow rate, but decreased with increasing pitch. At the same time, excepted that the interaction of pitch and flow rate did not affect the GT value, the curvature, flow rate and pitch of the mixer and the interactions between any two factors or among three factors had highly significant effects on G and GT values, and the significance of the effects was flow rate>curvature>pitch.
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Mixing characteristic of a helical secondary flow mixer used in coagulation

  • Received Date: 02/07/2009
  • Accepted Date: 20/06/2009
Fund Project:

Abstract: The effects of curvature, pitch and flow rate on head loss, G and GT values were investigated for a helical secondary-flow mixer used in coagulation. The experimental results showed that the head loss, G and GT values of the mixer increased with increasing curvature and flow rate, but decreased with increasing pitch. At the same time, excepted that the interaction of pitch and flow rate did not affect the GT value, the curvature, flow rate and pitch of the mixer and the interactions between any two factors or among three factors had highly significant effects on G and GT values, and the significance of the effects was flow rate>curvature>pitch.

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