NG喷射硝化过程中雾化特性模拟试验研究  

Experiment Study on Spray Characteristics in the Nitration Process of Nitroglycerin Production

作　　者：景青[1] 刘晶[1] 周致富[2] 康超[1] 马宁[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065 [2]西安交通大学动力工程多相流国家重点实验室,陕西西安710049

出　　处：《火炸药学报》2015年第4期95-98,共4页Chinese Journal of Explosives & Propellants

基　　金：国防科工委基础产品创新计划火炸药科研专项

摘　　要：为研究硝化甘油喷雾法中喷雾压力、甘油流量等工艺参数对硝化效果的影响,使用相位多普勒技术(PDA)检测了不同工艺参数下喷雾颗粒的粒径及速度分布,并通过高速摄影对雾化效果进行了验证。结果表明,喷雾压力为0.12MPa时液滴粒径分布最稳定,甘油流量为5kg/h时液滴粒径最小可达20μm;喷雾液滴粒径随轴向距离的增加总体呈递减趋势,而随着喷雾径向距离的增加而增大;喷雾径向速度服从高斯分布。高速摄像仪(CCD)验证结果表明,喷雾压力0.12MPa时,甘油流量5和6kg/h时,喷雾效果较好。In order to analyze the influence of different technological parameters,such as spray pressure and glycerin flow,on the nitration effect,the distribution of spray grain size and speed under different technological parameters were tested by using Phase Doppler Particle Analyzer（PDPA）and the spray effect was verified by Charge Coupled Device（CCD）.The results show that when spray pressure is 0.12 MPa,the distribution of spray grain with particle size of 20 um can be obtained.The spray grain size decreased with the increase of axial distance and increased with the increase of radial distance.The speed of radial direction obey the Gaussian distribution.The results verified by CCD show that the spray effect is better under the spray pressure of 0.12 MPa and glycerin flow rate of 5 and 6 kg/h.

关 键 词：物理化学 硝化甘油 喷射硝化 PDA检测技术 高斯分布 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]