摘要
基于三维石灰浆池Eulerian多相流模型,结合标准k-ε湍流模型和滑移网格技术,通过Fluent软件研究了旋转射流搅拌系统(RJM)作用下湿法脱硫(FGD)石灰浆池中的气液两相流特性。模拟结果表明随着旋转射流器自转角速度的增加,浆池内部射流长度和氧化空气横向速度呈现出先增大后减小的趋势,氧化空气分布同样呈现先趋于良好后趋于恶化趋势;当射流出口速度增大时,射流长度、氧化空气横向速度以及Z向速度也随之增大,氧化空气分布逐步改善。
Based on the Eulerian multi-phase model,this paper researched the gas-liquid flow characteristics in the wet flue gas desulfurization（FGD） lime slurry pond with rotary jet mixing（RJM）.The simulation adopted standard k-ε turbulence model and sliding grid technique by Fluent.The simulation result showed that the jet length and the transverse distributed velocity of oxidation air in the lime slurry pool increased first,and then decreased with the increase of the rotation angular velocity of RJM.Meanwhile oxidation air distribution also tended to fine first,and then tended to deteriorated.When the jet velocity increased,the jet length,the transverse distributed velocity of oxidation air and Z-velocity increased and oxidation air distribution gradually improved.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2016年第9期1875-1883,共9页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.51176102)
浙江省工业锅炉炉窑烟气污染控制工程技术研究中心开放基金(No.2011B02)
关键词
湿法脱硫
旋转射流搅拌
射流出口速度
自转角速度
氧化空气
wet flue gas desulfurization
rotary jet mixing
jet velocity
rotation angular velocity
oxidation air distribution
