三通道气力式喷嘴加压环境雾化特性试验研究  

Experimental study on atomization performance of airblast three-channel nozzle under high ambient pressure

作　　者：李波[1] 黄镇宇[1] 杜聪[1] 刘建忠[1] 周俊虎[1] 岑可法[1] 

机构地区：[1]浙江大学能源清洁利用国家重点实验室,浙江杭州310027

出　　处：《能源工程》2010年第2期15-19,共5页Energy Engineering

基　　金：国家重点基础研究发展规划项目(973项目)资助(2010CB227001)

摘　　要：对三通道气力式喷嘴进行了雾化室加压环境下的雾化试验研究,分析了雾化室环境压力与其他喷嘴运行参数对喷嘴雾化性能的影响。研究发现,雾化室环境压力的提高有利于气液两相的相互作用,可以有效降低雾化粒度平均直径,且当气耗率不变时,雾化粒径SMD与雾化室环境压力呈负指数的幂函数关系。The atomization property of airblast three-channel nozzle under high ambient pressure was investigated.It was found that continuous increase in air pressure caused the decrease of the mean drop size to a minimum value and then varied not too much.An explanation for this characteristics was provided in terms of the various contributing factors in different process of atomization.The results showed that SMD was proportional to Pn at a constant air/liquid ratio.

关 键 词：三通道喷嘴 气力式 雾化 环境压力 气耗率 

分 类 号：TK223.25[动力工程及工程热物理—动力机械及工程]