西南石油大学学报(自然科学版) ›› 2016, Vol. 38 ›› Issue (6): 147-151.DOI: 10.11885/j.issn.1674-5086.2015.06.10.01

• 石油与天然气工程 • 上一篇    下一篇

预润湿对管道润湿性的影响

许道振1,2, 张劲军2, 王彬1, 张国忠3   

  1. 1. 中国石油规划总院, 北京 海淀 100083;
    2. 中国石油大学(北京)机械与储运工程学院, 北京 昌平 1022493;
    3. 中国石油大学(华东)储运与建筑工程学院, 山东 青岛 266580
  • 收稿日期:2015-06-10 出版日期:2016-12-01 发布日期:2016-12-01
  • 通讯作者: 许道振,E-mail:daozhenxu@petrochina.com.cn
  • 作者简介:许道振,1985年生,男,汉族,山东聊城人,工程师,主要从事油气长输管道方面的工作。E-mail:daozhenxu@petrochina.com.cn;张劲军,1962年生,男,汉族,广东南海人,教授,博士生导师,主要从事重油及含蜡原油长距离管输方面的工作。E-mail:zhangjinjun@cup.edu.cn;王彬,1989年生,女,汉族,黑龙江大庆人,工程师,主要从事油气长输管道运营方面的工作。E-mail:wangbin-gd@petrochina.com.cn;张国忠,1953年生,男,汉族,山东聊城人,教授,博士生导师,主要从事含蜡原油停输再启动方面的工作。E-mail:gzzhang@upc.edu.cn

Effect of Pre-Wetting on Pipeline Wettability

XU Daozhen1,2, ZHANG Jinjun2, WANG Bin1, ZHANG Guozhong3   

  1. 1. Petrochina Planning and Engineering Institute, Haidian, Beijing 100083, China;
    2. College of Mechanical and Transportation Engineering, China University of Petroleum(Beijing), Changping, Beijing 102249, China;
    3. College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao, Shandong 266580, China
  • Received:2015-06-10 Online:2016-12-01 Published:2016-12-01

摘要: 针对成品油管道的内腐蚀问题,通过测量有机玻璃和钢材表面的接触角,对无机盐离子、表面粗糙度及润湿历史在油水固三相体系中的作用进行了研究。实验结果显示:碳钢具有憎油性,有机玻璃具有憎水性。在两种材料表面,预润湿的一相均表现出阻碍另一相润湿固体表面的倾向;离子浓度的增加提高了固体表面的憎油性,以上两种现象在碳钢表面表现的更为明显。此外,固体材料既影响最终的润湿接触角,也影响液体在固体表面的润湿进程,碳钢表面润湿稳定所需的时间远远大于有机玻璃表面润湿所需的时间,该现象会对含水输油管道中腐蚀位置的分布产生影响。

关键词: 润湿性, 预润湿, 界面材质, 离子浓度, 接触角

Abstract: In view of the problem of oil pipeline inner wall corrosion, by the measurement of the contact angle of acrylic and steel surface, we carried out to study the effect of inorganic salt icon, solid surface roughness and pre-wetting history on oil-water-solid system. The results indicate that the carbon steel mainly appears hydrophilic, while the acrylic mainly appears hydrophobic. On the surface of both materials, the pre-wetting phase always inclines to prevent the solid surface wetted by another phase, and the increasing icon concentration enhances the hydrophilic of the solid surface. Both of the phenomena are more obvious on the carbon steel surface. What is more, pipeline material affects not only the final contact angle, but also the wetting process, which shows that wetting requires much longer time to reach balance on the carbon steel than on the acrylic surface, which may exert an effect on the distribution of corrosion in the pipeline.

Key words: wettability, pre-wetting, surface material, icon concentration, contact angle

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