基于含油污泥的搅拌反应器内气液两相流的数值模拟

宋健斐; 贾智凯; 李思源; 仝坤; 聂凡

doi:10.13205/j.hjgc.202304014

基于含油污泥的搅拌反应器内气液两相流的数值模拟

doi: 10.13205/j.hjgc.202304014

宋健斐^1,2, ,,
贾智凯²,
李思源²,
仝坤¹,
聂凡¹

1. 石油石化污染物控制与处理国家重点实验室, 北京 102246;
2. 中国石油大学(北京)机械与储运工程学院, 北京 102249

基金项目:

石油石化污染物控制与处理国家重点实验室开放课题(PPC2020009)

详细信息

作者简介:
宋健斐(1979-),女,副教授,主要从事多相流动理论与分离技术方面的研究工作。songjf@cup.edu.cn

通讯作者:
宋健斐(1979-),女,副教授,主要从事多相流动理论与分离技术方面的研究工作。songjf@cup.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2022-10-28
- 网络出版日期: 2023-05-26
- 刊出日期: 2023-04-01

NUMERICAL SIMULATION OF GAS-LIQUID PHASE FLOW FIELD IN STIRRED REACTOR BASED ON OILY SLUDGE

1. State Key Laboratory of Petroleum Pollution Control, Beijing 102246, China;
2. College of Mechanical and Transportation Engineering, China University of Petroleum, Beijing 102249, China

摘要

摘要: 采用安东帕流变仪对不同温度下含油污泥的流变性质进行测量,并通过拟合幂律方程得到相关流变参数。基于其流变特性,以空气-含油污泥为介质采用数值模拟方法研究了含油污泥温度以及反应器结构对气液两相流场、局部气含率分布以及通气搅拌功率的影响。结果表明:随着含油污泥温度升高,搅拌桨对液相扰动范围趋广,气含率分布趋于分散,气液两相混合程度愈加均匀,通气搅拌功率下降明显;对比4种不同反应器结构,双层桨分散性能最佳,液相平均流速最高,速度均匀度指数最低,在通气搅拌功率适宜的情况下其混合性能最佳。
- 含油污泥 /
- 流变 /
- CFD模拟 /
- 搅拌
Abstract: The rheological properties of oily sludge at different temperatures were measured by Anton Paar rheometer, and the relevant rheological parameters were obtained by fitting the power-law equation. Based on the rheological characteristics of oily sludge, the effects of oily sludge temperature and reactor structure on gas-liquid phase flow field, local gas holdup distribution and stirring power were studied by numerical simulation with air-oily sludge as the medium. The results showed that with the increase of the temperature of oily sludge, the disturbance range of the stirring paddle to the liquid phase tended to be wider, the distribution of gas holdup tended to be dispersed, the mixing degree of gas and liquid two phases became more uniform, and the aeration stirring power decreased significantly; among the four different reactor structures, the double-layer impeller had the best dispersion performance, the highest average liquid flow rate and lowest velocity uniformity index. Its mixing performance was the best with an appropriate aeration stirring power.
- oily sludge /
- rheology /
- CFD simulation /
- stir

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