| 摘要: |
| NS混合聚结器是一种新型高效反应分离设备,对聚结器在汽油碱洗过程中的应用进行流体力学计算,考查各 因素对油水两相在聚结器中聚结过程的影响,并对其内部流场进行模拟，以进一步优化聚结器结构。建立一个具有 一根纤维丝的三维空间,选用A湍流流动模瑠、离散相模型、混合物模铟以及V0F模型对三维空间进行数值模 拟,研究表面张力对聚结过程的影响和两相流之间的相互作用。结果表明，对NS混合聚结器采用液体或气体分布 喷头初步分布，经过一段细分填料的再次分布，达到流通截面均匀分布，可以大大提高分离效率。 |
| 关键词: 聚结器 Fluent软件 混合物模型 润湿角 流场分布 |
| DOI： |
| 分类号: |
| 基金项目:中国石油天然气集团公司科学研究与技术开发项目(W-06-03D-01 -01 -01 -02) |
|
| CFD simulation of mixed coalescer on gasoline washing process with alkaline |
|
YANG Xiang-ping, QIN Hai-liang
|
|
(College of Chemistry and Chemical Engineering in China University of Petroleum, Dongying 257061，China)
|
| Abstract: |
| The NS mixed coalescer is a new type and high-effective separator used in reaction-seperation processes. A CFD about the device was done on the process of gasoline washing with alkaline by the Fluent software. The effects of every factors on the coalescence process of oil and water were studied. And its internal flow field was also simulated in order to optimize and improve the coalescer's design. The three-dimensional model with one fiber consists oi k - s turbulent model, discrete phase model, mixture model and volume of fluid ( VOF) model. The effects of surface tension on coalescence process and interaction of two phase fluid were studied. The results show that using another gas-liquid distribution by a layer of refine packing ,the separation efficiency could be increased greatly after a preliminary distribution to liquid or gas using sprinkle-nozzle. |
| Key words: coalescer Fluent software mixture model wetting angle flow field distribution |
