The effect of the secondary air swirl number on the number of particle impacts which affects slagging was studied to reduce slagging in utility boilers.
为了解决电站锅炉炉膛结渣的问题，研究了对结渣有重要影响的颗粒碰撞数受二次风旋流强度影响的规律。
The swirl number of secondary air has a great influence on the combustion. When swirl number is small(S<0.8), the fire is long, and may rush the back wall.
二次风旋流强度的变化对炉内燃烧影响较大，旋流数过小时（S<0.8），火焰将冲刷后墙；
The simulation result shows that the stronger swirl intensity becomes, the stronger influences on atomization droplets has, and the more uniformly secondary air and atomization droplets mix.
模拟结果表明：二次空气的旋流强度越大，对液滴的作用越强烈，二次空气与雾化液滴的混合越充分。
The simulation result shows that the stronger swirl intensity becomes, the stronger influences on atomization droplets has, and the more uniformly secondary air and atomization droplets mix.
模拟结果表明：二次空气的旋流强度越大，对液滴的作用越强烈，二次空气与雾化液滴的混合越充分。
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