摘要
利用FAM型衍射式激光测粒仪,对双流体石灰浆液雾化喷嘴的雾化特性进行了试验研究,得到了预测雾滴平均粒径的经验公式,分析了气耗率、石灰浆液浓度等参数对雾化粒径分布和雾化角的影响规律。结果表明,气液质量比增大,浆液液滴平均直径(SMD)减小;浆液浓度增加,液滴平均直径增加。气液质量比在0 05～0 3的范围内可获得良好的雾化效果,雾化粒径一般在20μm～100μm。喷嘴的雾化角较小,一般在20°～25°之间。气液质量比增加,雾化角减小;而石灰浆浓度对雾化角影响较小。
Experimental research has been done on a twinfluid nozzle using FAM laser particle distribution analyzer Factors affecting spray angle and distributions of Sauter mean diameter (SMD) have been analyzed It is found that the most important parameters are air liquid ratio and slurry concentration The SMD will be decreased when decreasing slurry concentration and increasing air liquid ratio Fine atomization can be obtained for air to liquid ratio in the range from 009 to 03 The SMD changes from 20 micron to 100 micron respectively The correlation of SMD has been obtained considering slurry concentration and air liquid ratio It is found that the spray angles are similar for three nozzles They are about 20 to 25 degree The spray angle will be decreased when increasing air to liquid ratio but almost unchanged when changing slurry concentration
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2003年第4期333-337,共5页
Journal of Fuel Chemistry and Technology
关键词
喷嘴
烟气脱硫
雾化特性
nozzle
atomization
characteristics
