中空外压超滤膜丝的数学模型与运行特性  

Mathematical model and running characteristics of outside-in hollow ultrafiltration membrane fiber

作　　者：许尧 苑宏英[1,2] 汪艳宁[1,2] 张玉忠[3] 靖大为[1] XU Yao;YUAN Hongying;WANG Yanning;ZHANG Yuzhong;JING Dawei(School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China;Tianjin Key Laboratory of Aquatic Science and Technology,Tianjin 300384,China;School of Material Engineering, Tianjin Polytechnic University, Tianjin 300387, China)

机构地区：[1]天津城建大学环境工程学院,天津300384 [2]天津城建大学天津市水质科学与技术重点实验室,天津300384 [3]天津工业大学材料工程学院,天津300387

出　　处：《膜科学与技术》2019年第1期81-85,92,共6页Membrane Science and Technology

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);国家科技重大专项(2017zx07107-002)

摘　　要：针对中空外压超滤的亲水短膜丝与疏水长膜丝,分别进行了丝壁透水系数与丝程阻力系数的压力、流量及温度的测试分析;建立了外压膜丝的运行微分方程数学模型;分析了压力、温度、丝长、丝径、给水方式及透水系数等因素变化时,各项膜丝沿程运行参数分布的相应变化,从而较为全面地揭示了中空外压超滤膜丝的运行规律.This title has analyzed pressure, flow, and temperature characteristics of permeable and along-path resistance modulus for the hydrophilic short and the hydrophobic long fiber of outside-in hollow ultrafiltration membrane, established the running mathematical model by using the permeability and resistance coefficient of outside-in membrane fiber, discovered the distribution of along-path running characteristics of each fiber under the condition of changing property of feed pressure, temperature, type, fiber length, permeable and resistance modulus to comprehensively reveal the running rule by using a single short hydrophilic and a long hydrophobic inside-out hollow fiber.

关 键 词：中空超滤 外压膜丝 数学模型:参数分布 

分 类 号：TQ085[化学工程] TQ051.8