摘要
应用欧拉—拉格朗日方法,对双锥型液—液分离旋流器的不同粒径的油滴运移轨迹及分离性能进行数值模拟,采用高速摄像技术记录旋流场不同粒径的离散相分离过程。结果表明:在一定范围内,随离散相粒径的逐渐增大,旋流器分离效率逐渐升高。对粒径小于50μm的油滴,分离效率较低,随粒径的逐渐增大,分离效率变化较小。对粒径为100μm的油滴,在旋流场内完成分离时间为2.30s,随粒径的逐渐增大,分离时间逐渐减小。当油滴粒径为100~900μm时,随粒径的逐渐增大,旋流器分离性能逐渐升高。数值模拟结果与高速摄像实验所得规律一致,验证数值模拟结果的准确性。
Eulerian-Lagarange method is used to simulate hydro-cyclone separation performance under different oil droplets sizes,within a certain range with the increasing of oil droplets size,the separation efficiency improved.In order to explore affecting factors on separation performance under different oil droplets sizes,an organic glass hydro-cyclone was designed and an experimental system was developed to measure the separation progress of oil droplets sizes by high speed camera.The results show that when discrete particle diameter is less than 50μm,the effect of particle sizes on separation efficiency of hydrocyclone is not obvious,and separation efficiency is low.With the increasing of oil droplets sizes the separation time decreased,and 100μm particles separated from the hydrocyclone take 2.30 s.The separation efficiency improved with the increasing of oil droplet sizes,when discrete particle diameter is at the range of 100～900μm.
出处
《东北石油大学学报》
CAS
北大核心
2018年第2期109-116,共8页
Journal of Northeast Petroleum University
基金
国家高技术研究发展计划(863计划)项目(2012AA061303)
国家教育部高等学校博士学科点专项科研基金资助课题(博导类)(20132322110002)
东北石油大学研究生创新科研项目(YJSCX2017-019NEPU)
东北石油大学培育基金项目(NEPUPY-1-15)
关键词
粒径
运移轨迹
分离性能
高速摄像技术
离散相
旋流器
particle size
migration path
separation performance
high speed camera
discrete phase
hydrocyclone
