鼓泡脱硫塔除雾器除雾特性数值研究及实验验证  

Numerical Simulation and Experimental Validation on Demisting Characteristic of the Mist Eliminator for Jet Bubble Reactor Dusulfurization System

作　　者：孙志春[1] 郭永红[1] 肖海平[1] 王政允[1] 孙保民[1] 杨勇平[1] 许建华[2] 

机构地区：[1]电站设备状态监测与控制教育部重点实验室(华北电力大学),北京市昌平区102206 [2]中国神华能源股份有限公司国华电力分公司,北京市朝阳区100025

出　　处：《中国电机工程学报》2010年第8期68-75,共8页Proceedings of the CSEE

基　　金：长江学者和创新团队发展计划项目(IRT0720);中央高校基本科研业务费专项资金项目(09ZG02)~~

摘　　要：为提高除雾器对不同粒径小液滴的脱除效果,减轻脱硫系统气气换热器的堵塞程度,对鼓泡脱硫塔除雾器性能进行了数值分析和实验研究。数值分析表明:除雾效率随液滴直径的增大而增大,随进气速度的增大而增大,随除雾器叶片间距的增大而降低;带倒钩的弧形板除雾器比折形板除雾器的除雾效率高;粒径小于20μm的小液滴脱除效率较低。冷态实验台上的除雾器性能实验验证了数值分析的结果。为除雾器的设计和优化提供参考。In order to improve demisting efficiency of mist eliminator in terms of different droplet diameter and reduce blockage of gas gas heater （GGH） in desulfurization system, numerical simulation and experimental study were carried out on the mist eliminator in bubble desulfurizer. The results of numerical simulation suggest that the demisting efficiency increases as droplet diameter and gas velocity increasing and decreases as the mist eliminator plate spacing reducing, and the efficiency of arc-shaped plate with barb mist eliminator is higher than that of polyline-shaped plate mist eliminator. Droplet with a diameter under 20 μm is of low demisting efficiency. The cold stage performance test on mist eliminator verified the result of numerical simulation. Through numerical simulation and experimental study, the basis of design and optimization of mist eliminator were provided.

关 键 词：除雾器 除雾效率 两相流动 液滴粒径 数值模拟 实验研究 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程]