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›› 2014, Vol. 14 ›› Issue (3): 377-382.

• 流动与传递 • 上一篇    下一篇

内加热搅拌釜中改进型INTER-MIG桨的传热性能

周勇军 蒋宾伟 卢源 陈明濠   

  1. 南京工业大学机械与动力工程学院 中海油山东化学工程有限责任公司 南京工业大学机械与动力工程学院 南京工业大学机械与动力工程学院
  • 收稿日期:2013-12-18 修回日期:2014-04-16 出版日期:2014-06-20 发布日期:2014-06-20
  • 通讯作者: 周勇军

Heat Transfer Performance of Improved INTER-MIG Impeller in a Stirred Tank with Inner-heating Coil

ZHOU Yong-jun JIANG Bin-wei LU Yuan CHEN Ming-hao   

  1. College of Mechanical and Power Engineering, Nanjing University of Technology Shandong Chemical Engineering Co., Ltd., China National Offshore Oil Corp College of Mechanical and Power Engineering, Nanjing Tech University College of Mechanical and Power Engineering, Nanjing University of Technology
  • Received:2013-12-18 Revised:2014-04-16 Online:2014-06-20 Published:2014-06-20
  • Contact: ZHOU Yong-jun

摘要: 通过实验与数值模拟,以水为工作介质,在直径D=0.5 m的内盘管加热搅拌釜中对双层正交排列的改进型INTER-MIG浆搅拌器不同转速下的温度场、盘管外侧的温度边界层及传热系数进行研究. 结果表明,实验与数值模拟的温度误差在2 K以内;搅拌釜内温度从上到下、从内到外呈升高趋势,最大温差基本保持在1 K之内;根据实验数据拟合得盘管外侧传热系数的关联式为Nu=0.0337Re0.925Pr1/3(d/D)0.1(dco/D)0.5,计算与实测值的平均偏差为7.64%;盘管外侧温度边界层平均厚度为3.66 mm,在合理范围内.

关键词: INTER-MIG搅拌浆, 搅拌, 传热, 温度边界层, 数值模拟

Abstract: The temperature field, temperature boundary layer of the lateral of coil and heat transfer coefficient in a f0.5 m stirred tank with a duplex interleaved and orthogonal design improved INTER-MIG blade system were investigated by both experimental and numerical approaches were. Water was stirred in the stirred tank at different rotational speeds. The results showed that the error of temperature between experimental measurement and numerical simulation was less than 2 K, the temperature in the tank had a rising trend from top to bottom and inside to outside, the maximum temperature difference was kept within 1 K. The heat transfer coefficient of coil tube outer side was correlated from the experimental data by Nu=0.0337Re0.925Pr1/3(d/D)0.1(dco/D)0.5, the average deviation between measurement and simulation was 7.64%. The average thickness of temperature boundary layer of coil tube outer side was 3.66 mm, being in a reasonable range.

Key words: INTER-MIG impeller, stirring, heat transfer, temperature boundary layer, numerical simulation

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