摘要
为提高船舶在航行过程中的消防安全保障,对船舶消防系统关键部件雾化喷嘴,根据其结构型式和工作原理,建立压力旋流喷嘴的理论模型。采用试验和数值模拟相结合的方法对其外部液滴雾化特性进行分析,分析入口压力、喷嘴出口直径、旋流室长度对雾化粒径、雾化锥角的影响规律。研究结果表明,雾化粒径随着入口压力和旋流室长度的增大而减小,随出口直径增大而增大;雾化锥角随着入口压力和出口直径增大而变大,随旋流室长度增大而减小。设计Box-Behnken试验并进行CFD仿真模拟,通过响应面方法获得雾化锥角和雾化粒径的影响规律。
In order to improve the fire safety of ships during navigation,the theoretical model of pressure swirl nozzle was established according to its structural type and working principle.The external droplet atomization characteristics were analyzed by the combination of experiment and numerical simulation,and the effects of inlet pressure,nozzle outlet diameter and swirl chamber length on atomization particle size and atomization cone angle were analyzed.The results showed that the atomization particle size decreased with the increase of the inlet pressure and the length of the swirl chamber,and increased with the increase of the outlet diameter;the atomization cone angle became larger with the increase of the inlet pressure and the outlet diameter,and decreased with the increase of the swirl chamber length.Box-Behnken test was designed and CFD simulation was performed to obtain the influence law of atomization cone angle and atomization particle size by response surface method.
作者
胡亚辉
张现
胡旭财
李俊
Hu Yahui;Zhang Xian;Hu Xucai;Li Jun(Maritime College,Tianjin University of Technology,Tianjin 300384,China;Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechatronical System,Tianjin 300384,China;Tianjin Ruikelai Electrical Equipment Manufacturing Co.,Ltd.,Tianjin 300400,China)
出处
《消防科学与技术》
CAS
北大核心
2023年第4期536-540,共5页
Fire Science and Technology
基金
国家自然科学基金资助项目(61941305)
天津市科技特派员项目(22YDTPJC00400)
天津市研究生科研创新项目(2021YJSS089)
中国交通教育研究会课题(JTZD20-14)。
关键词
航行安全
压力旋流
雾化锥角
雾化粒径
navigation safety
pressure cyclone flow
atomisation cone angle
atomisation particle size
