分离压和表面黏度的协同作用对液膜排液过程的影响
[Abstract]:In view of the vertical liquid membrane discharge process with insoluble active agents, the surface viscosity model with the change of the concentration of the active agent was introduced, and the thickness of the liquid film was established by using the lubrication theory under the premise of considering the separation pressure. The evolution equations of the concentration of active agent and the surface velocity of liquid film are obtained. The evolution characteristics of liquid film under the condition of constant surface viscosity and variable surface viscosity are analyzed numerically. The results show that the surface viscosity is an important factor affecting the liquid-film efflux process. When the surface viscosity is not considered, the liquid-film surface presents a "flow" mode, whereas a "rigid" mode, and with the increase of the surface viscosity, the liquid film efflux rate obviously slows down. Separation pressure is very important to the formation of "black film". When the separation pressure acts alone, the formation of "black film" is relatively short, but only when the surface viscosity is considered, it can not form a stable "black film". However, under the synergistic action of the two, the "black film" is formed in the middle of the liquid film, which is very thin but very stable, and the appearance time of the "black film" increases with the increase of the surface viscosity. When considering the influence of the concentration of active agent on the surface viscosity, the surface velocity is affected significantly. The formation length and appearance time of the "black film" are similar to the corresponding constant surface viscosity, but the thickness of the "black film" is smaller than that of the corresponding constant surface viscosity.
【作者单位】： 华北电力大学电站设备状态监测与控制教育部重点实验室;
【基金】：国家自然科学基金(批准号:11202079) 中央高校基本科研业务费专项资金(批准号:13MS97)资助的课题~~
【分类号】：O648.24
【相似文献】
相关期刊论文 前10条
1 章国富;伍金虎;;从液膜检索看液膜的近期发展[J];江西师院学报(自然科学版);1982年02期
2 吴子生;许国良;严忠;;液膜稳定性的研究(Ⅰ)——电容法测液膜的厚度[J];东北师大学报(自然科学版);1985年02期
3 丁tD才;严忠;;液膜原理及其应用[J];东北师大学报(自然科学版);1979年01期
4 张瑞华;;液膜分离技术:Ⅱ、液膜的研制及应用[J];江西师院学报(自然科学版);1980年02期
5 张瑞华;;大环多元醚在液膜分离中的传质特性及其用例[J];江西师院学报(自然科学版);1982年02期
6 胡靖;刘育;童林荟;阎志宏;;八甲基四氧T堤赝橐耗ぴ靥宓难≡翊始案豪胱有вJ];化学通报;1986年09期
7 吴子生;严忠;;液膜分离简介[J];安徽大学学报(自然科学版);1987年S1期
8 常征,邱陵,林雪,何炳林;离子交换过程中的液膜扩散传质研究(Ⅰ)[J];高等学校化学学报;1991年02期
9 王寿祥;邱志新;龚建平;陈森;;穿过液膜的振荡及无机盐的影响[J];化学通报;1992年12期
10 张瑞华;;液膜分离技术:I.液膜分离的机理[J];江西师院学报(自然科学版);1980年01期
相关会议论文 前1条
1 孙艳阁;吕韦钦;李春秀;李英;;采用傅里叶变换红外光谱表征泡沫液膜的特性[A];中国化学会第29届学术年会摘要集——第26分会：胶体与界面[C];2014年
相关博士学位论文 前1条
1 郭盛昌;旋转液膜反应器对沉淀过程的影响作用研究[D];北京化工大学;2009年
相关硕士学位论文 前2条
1 刘海涛;硅胶负载离子液膜催化体系的构筑及在Henry反应中的应用[D];湘潭大学;2015年
2 裴建军;非平整基底上含不溶性活性剂溶液的流动特性[D];华北电力大学;2014年
，本文编号：2385107
本文链接：https://www.wllwen.com/kejilunwen/huaxue/2385107.html
