学术
浸没式中空膜纤维尺寸的优化模拟
王捷[1,2] 张宏伟[1,2] 贾辉[3] 李波[3]
[1]天津工业大学中空纤维膜材料与膜过程教育部重点实验室 [2]材料科学与化学工程学院,天津300160 [3]天津大学环境科学与工程学院,天津300072
摘 要:
外形尺寸优化是对浸没式中空膜纤维污染控制的重要方面．中空膜纤维轴向上“点通量”分布的不均匀是促进膜污染发展的诱因．以轴向通量分布系数D_f为目标函数，通过建立单根浸没式中空纤维的过滤模型，对双端出水的中空膜纤维的外形尺寸进行了优化，数值模拟结果表明：膜纤维内径和长度对轴向通量分布影响最大．针对外径为1．1min的某定型中空膜纤维，当D_f控制在1％～3％，纤维内径为0、6～0．8mm时，相应的最佳膜纤维长度范围为0．66～2．06m．[著者文摘]
文章出处:
《膜科学与技术》-2008年28卷1期,39 -31-34,39页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1007-8924（2008）01-0031-04
Optimal simulation of submerged hollow membrane fiber module
WANG Jie,ZHANG Hongwei,JIA Hui,LI Bo（1.Key laboratory of Hollow Fiber of Membrane Material and Membrane Process of Ministry of Education; 2. School of Material and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300160, China; 3. School of Environmental Science and Engineering, Tianiin University, Tianiin 300072, China）
Abstract:
The optimization of hollow fiber membrane configuration is play a key role in controlling membrane fouling. The non- uniform distributed local flux on hollow fiber promote the fiber fouling development, so the axial flux distributed index D_f is the objective function in this study. Base on the model of filtration through a hollow-fiber membrane, two-end permeate produced fiber configuration was optimized. The numerical simu-lation results indicated that lumen diameter and length influenced D_f significantly. According to the experience of a commercial hollow fiber in practice, when D_f was controlled 1%--3 %, the fiber lumen diameter change from 0.6 to 0.8 mm, the fiber length of 0.66--2.06 m is the optimum range.[著者文摘]
Key words:
submerged hollow fiber; membrane module; configuration sizes; optimal design
基金资助:
天津市科技攻关计划重大项目（05YFGDGX10000）
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