摘要
为进一步提高电破乳的效率,通过分析油中水滴在电场力作用下的受力情况,得出影响水滴静电聚结的因素,并设计了绝缘型静电聚结器对油包水乳状液进行室内实验,结果表明,增加电场强度和延长电场停留时间可有效促进分散水滴聚并成大颗粒水滴,提高其在油相中的沉降速率,加快油水分层速度。含水量过高导致油水乳状液电导率激增,不利于乳状液的静电聚结。具有良好的稳定性和耐腐蚀性的绝缘材料可有效防止因局部电流过大导致的电场崩溃。在此基础上开发出的静电聚结器在现场生产中取得了较好效果,在保证分离效果的前提下,能显著降低静电聚结器能耗。
The factors influencing the water droplets electrostatic coalescence were deducted according to the aqueous drops behavior in oil phase subjected to an electric field. The insulated compact electrostatic coalescer was designed to perform the experiment on water-in-oil emulsion. The result indicate that increase in the electric field and the residence time can enhance the efficiency of water droplets coalescence,accelerate its settlement velocity in oil phase and delaminating speed. The high water contents rapidly increase the electric conductivity and are unfavorable for the electrostatic coalescence. The insulated material with high stability and corrosion resistance can be used for avoiding the electric field collapse caused by local current oversized. The compact electrostatic coalescer was designed and produced for field experiment. The results indicate the new coalsecer is fit for practical application,and can significantly decrease power consumption efficiency when water concentration is lower than traditional electric dehydrator.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2010年第7期1797-1802,共6页
High Voltage Engineering
基金
中海油国家科技重大专项(2008ZX05024-004)
国家建设高水平大学公派研究生项目(2008645001)~~
关键词
静电聚结
绝缘
电导率
能耗
电场强度
乳状液
electrostatic coalescence
insulated
electric conductivity
energy consumption
electric field strength
emulsion
