摘要
针对于煤矿井下狭小空间内设备腐蚀严重、喷涂困难问题,优化设计了一种用于狭小空间内的空气雾化喷枪。主要研究了喷嘴口直径对喷射速度、液面沉积膜成形、喷射流量及喷射角的影响。采用SolidWorks软件对喷嘴进行建模,并利用Fluent对其进行仿真模拟,同时应用MATLAB软件进行了灰度处理。为了验证模拟结果的可靠性,搭建了喷枪试验系统并与模拟结果进行了比对。模拟和试验研究均表明,随着喷嘴直径的不断增大,喷涂速度、液膜沉积面积和厚度均呈现增大趋势,且喷枪的喷涂流量和雾化锥角也在增大。对比发现,喷嘴口直径为φ1.5 mm时喷涂效果最好。
Aiming at the problem of serious corrosion and spraying difficult of equipment in the narrow space of underground coal mine, optimized and designed an air atomizing spray gun used in the narrow space. The effects of nozzle diameter on injection velocity, deposition film formation, injection flow rate and injection angle were studied. SolidWorks software was used to model the nozzle, and Fluent was used to simulate the nozzle. Meanwhile, MATLAB software was used for gray processing. In order to verify the reliability of the simulation results, a spray gun test system was built and compared with the simulation results. The simulation and experimental studies show that with the increase of the nozzle diameter, the spraying speed, the deposition area and the thickness of the liquid film all show an increasing trend, and the spraying flow rate and the atomization cone angle of the spray gun also increase. The comparison shows that when the nozzle diameter is φ1.5 mm, the spraying effect is the best.
作者
刘培坤
伏文秀
霍行
刘培礼
胥聪聪
Liu Peikun;Fu Wenxiu;Huo Xing;Liu Peili;Xu Congcong(College of Mechanical and Electrical Engineering,Shandong University of Science and Technology,Qingdao 266590,China;Qingdao Advanced Marine Material Technology Co.,Ltd.,Qingdao 266590,China)
出处
《煤矿机械》
2021年第11期34-37,共4页
Coal Mine Machinery
基金
山东省自然科学基金项目(ZR2020ME105)
青岛市科技计划项目(21-1-4-sf-10-nsh)。
关键词
设备腐蚀
喷枪喷嘴
雾化特性
仿真模拟
试验研究
equipment corrosion
spray gun nozzle
atomization characteristic
simulation
experimental research
