摘要
液柱冲击塔内液柱雾化效果直接影响系统的脱硫效率,其中的影响因素主要有挡板类型、液体进口流量、气体流速以及喷嘴与挡板的间距。在一小型液柱冲击塔模拟试验台上,利用粒子图像测速技术(PIV),测量模拟试验塔内液柱雾化形成的气-液两相流场。试验结果表明,上述结构因素和操作参数对雾化流场内液滴的尺寸及其运动速率有显著影响,并且发现流场中的液滴粒径符合Rosin-Rammler分布规律。
The atomization effectiveness of a liquid column in a liquid-column impingement tower has a direct influence on the desulfurization efficiency of a whole system.The main influencing factors include:the type of damper plates,liquid inlet flow rate,gas velocity and the clearance between the nozzles and damper plates.On a simulation test rig of a small-sized liquid-column impingement tower,by using particle image velocimetry(PIV) measuring technology,measurements were taken of the gas-liquid two-phase flow field formed by the liquid column atomization inside a simulation test tower.The test results show that the above-mentioned structural factors and operational parameters have a significant effect on the size of liquid droplets in the atomization flow field and their kinematic speed. Moreover,it was found that the liquid droplet size in the flow field complies with Rosin-Rammler distribution law.
出处
《热能动力工程》
EI
CAS
CSCD
北大核心
2006年第3期275-278,282,共5页
Journal of Engineering for Thermal Energy and Power
基金
国家重点基础研究专项发展规划基金资助项目(G1999022201-05)
关键词
PIV技术
液柱冲击塔
粒径分布
PIV(Particle Image Velocimetry) technology,liquid-column impingement tower,particle size distribution
