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三溢流分隔壁塔板上气含率的研究

Shiyou Huagong/Petrochemical Technology(2013)

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Abstract
在内径为1 200 mm实验塔中,以空气和水为实验介质,采用电导率法对三溢流分隔壁塔板上的气含率进行了测定,并探讨了塔板上气含率分布的规律.实验结果表明,当塔板上高度低于60 mm对,三溢流分隔壁塔板上小鼓泡区内的面平均气含率比大鼓泡区内的大;当板上高度高于60 mm时,小鼓泡区内的面平均气含率比大鼓泡区内的小;在塔板上35 mm处(气含率的最低测量点),小鼓泡区和大鼓泡区内的气含率分布不均匀性指数的差值最大,随板上高度的增加,该差值逐渐变小并趋于零;在塔板上高度低行125 mm处,平面壁面鼓泡区的壁面效应较曲面壁面鼓泡区要弱,板上高度高于125 mm后,不同鼓泡区的气含率分布不均匀性指数的差值趋于零.
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Key words
Bubbling area,Conductometry,Gas hold-up fraction,Three-pass dividing wall tray
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