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| 高炉鼓风脱湿系统除雾器挡板结构两相流场数值模拟 |
| Numerical simulation on the two-phase flow in the baffle structure of a demister of blast furnace blower dehumidification system |
| 投稿时间：2014-06-13 |
| DOI：10.13259/j.cnki.eri.2016.01.008 |
| 中文关键词: 除雾器 鼓风脱湿 两相流 压降 流场 |
| 英文关键词:demister blast dehumidification two phase flow pressure drop flow field |
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| 中文摘要: |
| 对高炉鼓风脱湿系统除雾器的除雾机理进行了详细分析,在此基础上参考实际运行参数,采用计算流体力学(CFD)方法对除雾器挡板结构内的气液两相流动进行了数值模拟,得到了液滴的运动轨迹以及液滴质量浓度、压力、速度和旋涡分布情况,并对除雾器挡板结构内部两相流场进行了深入分析.结果表明:鼓风脱湿系统除雾器能够对携雾气流中的液滴进行有效的分离,从而保证鼓风脱湿系统连续可靠地运行.研究对除雾器的优化设计和运行具有指导意义. |
| 英文摘要: |
| Based on the analysis of the demisting mechanism of the demister in the blower dehumidification system of a blast furnace,the computational fluid dynamics(CFD) method was used to simulate numerically the two-phase flow of the gas and liquid in the baffle structure of a demister with the actual operation conditions as a reference.The detailed distributions of the pressure,velocity,vortex,and droplet concentration were provided.The simulation also showed the tracks of the droplets.In addition,an in-depth analysis and research on the two-phase flow were conducted.The results showed that the demister could separate the droplets from the airflow effectively,so as to ensure that the blower dehumidification system could run continuously and reliably.This study is helpful to the optimization and operation of the demister. |
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