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聚合物对旋流器内油滴聚结与分离效率的影响

夏宏泽 赵立新 刘琳 王羽 章宝玲 张爽

夏宏泽, 赵立新, 刘琳, 王羽, 章宝玲, 张爽. 聚合物对旋流器内油滴聚结与分离效率的影响[J]. 机械科学与技术, 2021, 40(7): 993-999. doi: 10.13433/j.cnki.1003-8728.20200168
引用本文: 夏宏泽, 赵立新, 刘琳, 王羽, 章宝玲, 张爽. 聚合物对旋流器内油滴聚结与分离效率的影响[J]. 机械科学与技术, 2021, 40(7): 993-999. doi: 10.13433/j.cnki.1003-8728.20200168
XIA Hongze, ZHAO Lixin, LIU Lin, WANG Yu, ZHANG Baoling, ZHANG Shuang. Effects of Polymer on Coalescence and Separation Efficiency of Oil Droplets in Hydrocyclon[J]. Mechanical Science and Technology for Aerospace Engineering, 2021, 40(7): 993-999. doi: 10.13433/j.cnki.1003-8728.20200168
Citation: XIA Hongze, ZHAO Lixin, LIU Lin, WANG Yu, ZHANG Baoling, ZHANG Shuang. Effects of Polymer on Coalescence and Separation Efficiency of Oil Droplets in Hydrocyclon[J]. Mechanical Science and Technology for Aerospace Engineering, 2021, 40(7): 993-999. doi: 10.13433/j.cnki.1003-8728.20200168

聚合物对旋流器内油滴聚结与分离效率的影响

doi: 10.13433/j.cnki.1003-8728.20200168
基金项目: 

国家"863"计划课题项目 2012AA061303

东北石油大学"龙江学者"配套科研经费项目 LJ201803

详细信息
    作者简介:

    夏宏泽(1993-), 硕士研究生, 研究方向为流体机械及工程, xiahongze1@163.com

    通讯作者:

    赵立新, 教授, 博士, Lx_zhao@126.com

  • 中图分类号: TK72

Effects of Polymer on Coalescence and Separation Efficiency of Oil Droplets in Hydrocyclon

  • 摘要: 为了研究聚合物对水力旋流器内油滴聚结与分离效率的影响规律, 以螺旋导流内锥式旋流器为研究对象, 利用群体平衡模型(PBM)方法对不含聚与含聚0.5‰工况下油水两相在旋流器内的速度场、黏度场、油滴聚结、运移特性及分离效率进行数值分析, 并通过实验验证。结果表明: 聚合物的加入增大了水相黏度, 使油滴在旋流器内最大停留时间与轴向运动距离增加, 增加了油滴碰撞聚结的机会, 但降低轴心处油滴向上运动的轴向速度, 使油滴无法快速从溢流口流出, 最终从底流口流出, 增加油水分离的难度。与不含聚时相比, 含聚0.5‰工况下, 轴心处的油滴粒径与含油体积分数较高, 但简化分离效率由99.79%降低至94.72%。通过马尔文粒度仪对两种工况下入口与出口的油滴粒径进行测试, 含聚0.5‰时溢流与底流口油滴粒径高于不含聚时, 验证了模拟的准确性。
  • 图  1  螺旋导流内锥式旋流器结构图

    图  2  流体域网格划分

    图  3  不同截面不同含聚浓度下的切向速度分布曲线图

    图  4  不同截面不同含聚浓度下的轴向速度分布曲线图

    图  5  S1截面不同含聚浓度下表观黏度曲线图

    图  6  油滴粒径与体积分数分布云图

    图  7  不同含聚浓度下溢流与底流口油滴粒径频数图

    图  8  不同含聚浓度下油滴在旋流器内运移轨迹对比图

    图  9  不同含聚浓度下油滴粒径随时间变化

    图  10  试验工艺流程图

    图  11  不同含聚浓度下入口与出口粒径分布

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  • 收稿日期:  2019-01-02
  • 刊出日期:  2021-07-01

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