中空内压超滤膜丝的数学模型与运行特性  

Mathematical model and running characteristics of ultra-filtration membrane fiber with hollow and internal pressure

作　　者：张智超[1] 苑宏英[1] 汪艳宁[1] 张玉忠[2] 靖大为[1] 

机构地区：[1]天津城建大学环境工程学院,天津300384 [2]天津工业大学材料工程学院,天津300387

出　　处：《工业水处理》2018年第1期83-86,共4页Industrial Water Treatment

基　　金：分离膜与膜过程国家重点实验室2016年度开放课题(M2-201603)

摘　　要：针对中空内压单支超滤膜的亲水短丝与疏水长丝,分别进行了丝壁透水系数与丝程阻力系数的压力及温度特性的测试分析;建立了膜丝运行的微分方程数学模型;分析了给水压力、给水温度、给水方式、膜丝长度、透水系数及阻力系数等内外因素变化时,各项膜丝沿程运行参数的变化分布规律,从而较为全面地揭示了中空内压超滤膜丝的运行规律。Aiming at the hydrophilic short fiber and hydrophobic long fiber of single support ultra-filtration mem- brane with hollow and internal pressure, the pressure and temperature characteristics of hyphal wall permeation co- efficient and threading resistance coefficient have been tested and analyzed. The differential equation and mathe- matical model of membrane fiber running rules has been established. When the changes in internal and external fac- tors, such as water supply pressure ,water supply temperature, water supply mode, membrane fiber length, perme- ation coefficient, resistance coefficient, etc., and the change of distribution rules of various membrane fiber along path running parameters are analyzed, so as to fully reveal the running rules of ultra-filtration membrane fiber with hollow and internal pressure.

关 键 词：中空超滤膜丝 内压膜丝特性 微分数学模型 

分 类 号：TQ085[化学工程] TQ051.8