全氟磺酸树脂中空纤维膜压缩空气除湿性能研究
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摘要
利用全氟磺酸树脂制备了中空纤维膜,研究了其在真空模式和反吹模式下的压缩空气除湿性能。结果表明,全氟磺酸树脂中空纤维膜在两种工作模式下都具有良好的除湿性能,工作压力、进气流量、反吹比例、真空度会影响除湿性能。在工作压力0.4MPa、进气流量1L/min真空度5kPa时,产气露点可以达到-39.4℃。
Hollow fiber membranes were made by perfluorosulfonic resin and furthermore their dehumidification perfomance for compressed air were tested under vacuum mode and reverse-sweep mode by actual experiments.The results show that the hollow membranes have excellent dehumidification perfomance under both working modes.Working pressure,inlet flow rate,reverse sweep ratio,vacuum degree could influence the dehumidification performance.Under an operating pressure of 0.4 MPa,the inlet flow rate of1 L/min and vacuum degree of 5 kPa,the dew point of the compressed air can be reduced to-39.4℃.
Hollow fiber membranes were made by perfluorosulfonic resin and furthermore their dehumidification perfomance for compressed air were tested under vacuum mode and reverse-sweep mode by actual experiments.The results show that the hollow membranes have excellent dehumidification perfomance under both working modes.Working pressure,inlet flow rate,reverse sweep ratio,vacuum degree could influence the dehumidification performance.Under an operating pressure of 0.4 MPa,the inlet flow rate of1 L/min and vacuum degree of 5 kPa,the dew point of the compressed air can be reduced to-39.4℃.
引文
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[2]田锐,吴中华,岳莲,等.气体干燥技术及装置[J].干燥技术与设备,2012,10(3):45~50.
[3]张琪.膜除湿技术用于空气除湿的研究进展[J].舰船防化,2013(2):26~32.
[4]吴庸烈,李国民,李俊凤,等.水蒸气在高分子膜中的透过行为与气体膜法脱湿[J],2007,27(3):1~5.
[5]汤卫华,张琪,张龙龙,等.不同结构中空纤维膜组件用于低压高湿空气除湿研究,膜科学与技术,2013,33(6):78~82.
[6]张琪,汤卫华,张龙龙.膜除湿技术在气体干燥中的应用[J].舰船防化,2011(3):40~45.
[7]张广信,郑邦婞,于京鑫,等.膜分离技术用于气体脱湿的研究现状[J].化工科技,2010(18):73~76.
[8]李国民,李俊凤,刘静芝,等.改性聚酰亚胺膜的水蒸气渗透性和空气除湿性能[J].华东理工大学学报(自然科学版)2006,32(6):629~634.
[9]郎万中,许振良.全氟磺酸离子膜的结构与应用研究进展[J].膜科学与技术,2005,25(6):69~73.
[10]栾英豪,张恒,张永明,等.全氟磺酸离子交换膜的制备与性能研究[J].功能高分子学报,2005,18(1):62~66.
[11]张永明,唐军柯,袁望章.燃料电池全氟磺酸质子交换膜研究进展[J]. 2011,31(3):76~85.