台山电厂水平布置除雾器性能优化的试验研究  

Experimental Study on Performance Optimization of Horizontal Mist Eliminator in Taishan Power Plant

作　　者：孙志春[1] 肖海平[2] 孙保民[2] 杨勇平[2] 

机构地区：[1]中国神华能源股份有限公司国华电力分公司,北京100025 [2]华北电力大学电站设备状态监测与控制教育部重点试验室,北京102206

出　　处：《动力工程学报》2010年第11期889-894,共6页Journal of Chinese Society of Power Engineering

基　　金：长江学者和创新团队发展计划资助项目(IRT0720)

摘　　要：为提高除雾器对液滴的脱除效果,减轻脱硫系统气-气换热器的堵塞,在冷态试验台上采用水平衡法研究了除雾器的性能.结果表明：随着板间距的减小,单级除雾器的最佳流速增大;折形板和弧形带倒钩板均在板间距为26 mm时获得最高除雾效率;弧形带倒钩板除雾器的除雾效率略高于折形板除雾器.两级除雾器性能试验表明：第2级除雾器效率较高,而第2级除雾器在低速下基本没有除雾效果.钩26-折20组合在3~10 m/s烟气流速内的平均除雾效率约为84.2%,在4~8 m/s的高效除雾流速内的除雾效率高达91%,其整体除雾效果最佳.In order to improve the efficiency of mist eliminator and reduce the blockage of gas-gas heat-exanger（GGH） in desulfurization system,the water equilibrium method was used to analyze the performance of a mist eliminator in a cold-state test-bed.Results show that the optimal mist velocity increases with reducing space between the plates of single-stage mist eliminator.For eliminators with fold line shaped or curved barbed plates,the highest demisting efficiency is achieved for a plate space of 26 mm,between which the latter one has a slightly higher efficiency.Performance test results of two-stage mist eliminator indicate that the first stage has a far higher efficiency than the second stage.The average efficiency of the combination of ＂curved 26 fold line 20＂ can reach 84.2% within a flue velocity range of 3-10 m/s,and the best demisting efficiency（91%） is to be obtained in a velocity range of 4-8 m/s.The combination of ＂curved 26 fold line 20＂ has the best demisting efficiency.

关 键 词：除雾器 脱硫系统 气-气换热器 除雾效率 性能试验 

分 类 号：X701.3[环境科学与工程—环境工程]