摘要
为了明确含砂工况下油滴粒径变化对水力旋流器分离性能的影响,基于CFD-DEM耦合方法,针对轴入倒锥式水力旋流器,开展了不同油滴粒径下水力旋流器内部流场特性和分离性能的研究。结果表明,随着油滴粒径的增大,螺旋流道外侧流体的油相浓度下降,流体黏度减小,流体流动性增加。边壁侧流体速度的增大导致砂相颗粒动能增加,颗粒在旋流器内平均停留时间逐渐增加。当油滴粒径增大至0.3 mm时,分离器分离效率提高至98.53%,在此基础上,进一步增大油滴粒径时,分离效率的提升趋于平缓。
With a view to clarifying the influence of the variation of oil droplet size on the separation performance of the hydrocyclone under sand-containing conditions,having the CFD-DEM coupling method based to investigate the internal flow field characteristics and separation performance of the hydrocyclone under different oil droplet sizes was implemented for the shaft-in inverted cone hydrocyclone.The results show that,as the oil droplet size increases,the oil concentration of the fluid on the outside of the spiral flow channel decreases,the fluid viscosity reduces and the fluid fluidity increases.The increase in fluid velocity on the side wall leads to an increase in the kinetic energy of sand particles,and the average residence time of the particles in the cyclone gradually increases.When increasing the oil droplet size to 0.3 mm,the separation efficiency of the separator would rise to 98.53%.On this basis,when the oil droplet size is further increased,improvement in the separation efficiency would tend to level off.
作者
蒋明虎
张瑞
邢雷
赵立新
李新亚
关帅
JIANG Ming-hu;ZHANG Rui;XING Lei;ZHAO Li-xin;LI Xin-ya;GUAN Shuai(College of Mechanical Science and Engineering,Northeast Petroleum University;Heilongjiang Provincial Key Laboratory of Petroleum and Petrochemical Multiphase Media Treatment and Pollution Prevention;Daqing Oilfield Postdoctoral Research Workstation)
出处
《化工机械》
2025年第6期953-960,共8页
Chemical Engineering & Machinery
基金
国家自然科学基金区域创新发展联合基金重点支持项目(批准号:U21A20104)资助的课题
国家自然科学基金(批准号:52304064)资助的课题
中国博士后科学基金项目(批准号:2023M730481)资助的课题
黑龙江省自然科学基金(批准号:LH2022E017)资助的课题。
