王宗亮,贾玉香,胡仰栋

• 1:中国海洋大学化学化工学院

摘要(Abstract)：

利用流体力学的计算方法,以反渗透膜组件中的隔板网丝为研究对象,并在计算的过程中使用了有渗透率壁边界条件的数值模型,系统地研究了d/H值(隔板丝直径d与隔室高度H的比值)的改变对膜通道中的传质以及流体动力学方面的影响。研究结果表明,d/H值的改变对膜表面溶液浓度、水通量以及系统的压力降都有十分重要的影响。随着d/H值的增加,膜表面溶液浓度整体减小,水通量增加,但是当d/H值增大到0.4左右的时候,这两个量变化不再显著。而沿着通道中的压力降随d/H的增加,其增加速度明显变快。因此能量损失在允许的范围内,适当增加网丝直径是有利于增加溶质质量传递的。

关键词(KeyWords)： 反渗透;计算流体力学;隔板;优化;脱盐

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(21276245,21576249)资助~~

作者(Author): 王宗亮,贾玉香,胡仰栋

DOI: 10.16441/j.cnki.hdxb.20170283

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