摘要
针对离心分离型碟式分离机,利用ICEM CFD软件完成转鼓内部流场三维几何模型的建立和六面体网格的划分。选择Fluent软件中的Mixture多相流模型、Realizable k-ε湍流模型和SRF动区域计算模型进行数值模拟。结果表明:离心分离型碟式分离机油水两相分离效果明显,油相出口含油率达99. 96%;油相体积分数分布、压力分布和切向速度沿径向分布符合碟式分离机转鼓内部流场基本理论规律;提升转鼓转速能够显著提高分离机的分离效率,增大水相粒径在一定程度上可以提高分离效率。
Considering the disc-stack centrifuge, making use of ICEM CFD software to build a three-dimensional geometry model for the drum of disc-stack centrifuge and to complete the hexahedral mesh was implemented, including having Mixture multi-phase flow model, Realizable k-ε turbulence model, and SRF dynamic area model in Fluent selected for the numerical simulation. The results show that, the disc-stack centrifuge has obvious effect in oil-water separation and at the oil outlet, the oil content can reach 99.96% and the distribution of oil volume fraction and pressure and the radial distribution of tangential velocity comply with theoretical analysis of the flow field in the drum of disc-stack centrifuge; and raising the drum＇ s rotate speed can improve separation efficiency significantly and magnifying the water-droplet size phase can promote separation efficiency to some extent
作者
耿乐天
邹玉
GENG Le-tian;ZOU Yu(College of Mechanical Engineering,Beijing Institute of Petrochemical Technolog)
出处
《化工机械》
CAS
2018年第5期648-651,共4页
Chemical Engineering & Machinery
基金
北京市教委科研项目(km201610017001)
关键词
离心分离型碟式分离机
转鼓内部全流场
油水分离效率
切向速度
转速
水相粒径
disc-stack centrifuge
all flow fields in drum
oil-water separation efficiency
tangential velocity
rotate speed
water-droplet size
