供水压强对气水喷雾雾化粒度的影响  

Influence of water supply pressure over atomization particle size by air-water spray

作　　者：桂哲[1] 刘荣华[1] 王鹏飞[1] 张文[1] 苟尚旭 舒威[1] 

机构地区：[1]湖南科技大学能源与安全工程学院,湖南湘潭411201

出　　处：《矿业工程研究》2016年第3期21-25,共5页Mineral Engineering Research

基　　金：国家自然科学基金资助项目(51574123);湖南省研究生科研创新基金资助项目(CX2015B539)

摘　　要：为了研究供水压强对气水喷雾雾化粒度的影响,基于自行设计的气水混合喷雾试验系统,在供气压强一定的情况下,利用Spraytec马尔文粒径分析仪在不同供水压强下对雾场雾化粒径进行测量,用电磁流量计和转子流量计对水流量和气流量进行测定.结果表明:当供气压强一定的情况下,随着供水压强增大,水流量逐渐增加,气流量缓慢减小;气液比随供水压强的增大而减小,且减小的幅度变缓,最后几乎保持不变;雾滴粒径随供水压强的减小而减小,当供水压强较小时,气液比大,雾化效果好,雾滴粒径可达20μm左右.In order to study atomization particle size of air-water spray,this paper,based on the self-designed experiment system of air-water spraying dust suppression,uses the Malvern Spraytec particle size analyzer to measure the atomization particle size at different water supply pressures under the condition of constant air supply pressure. The experimental results show that,with the increase of water supply pressure,the water flow of air blast atomizer increases,while the gas flow decreases,gas liquid ratio decreases,and the rate of decrease slows down; atomization particle size decreases with the decrease of water supply pressure,gas liquid ratio increases at a lower water supply pressure when the air blast atomizer has a good atomization performance.

关 键 词：气水喷雾 雾化粒度 供水压强 实验 

分 类 号：TD714.4[矿业工程—矿井通风与安全]