船用细水雾灭火喷头结构优化与分析

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (9): 1253-1256.

船用细水雾灭火喷头结构优化与分析

王震，王杰，陈超，路书虎，尹群

江苏科技大学机械工程学院，江苏镇江212003

出版日期:2020-09-15 发布日期:2020-09-15
作者简介:王震（1995-）,男，湖北黄冈人，江苏科技大学机械工业学院硕士研究生，主要从事机器人、增材制造方面的研究，江苏省镇江市梦溪路2 号，212003。
基金资助:
江苏科技大学海洋装备研究院基金项目（HZY2019A05）

Structure optimization and analysis of marine water mist fire extinguishing nozzle

WANG Zhen，WANG Jie，CHEN Chao，LU Shu-hu，YIN Qun

School of Mechanical Engineering, Jiangsu University of Science and Technology, Jiangsu Zhenjiang 212003，China

Online:2020-09-15 Published:2020-09-15

摘要/Abstract

摘要： 根据液体的雾化和灭火机理，对细水雾的液滴形成和破碎过程、影响液体雾化的因素、多种船用细水雾喷头结构的优劣进行分析，得到细水雾雾化对喷头的基本要求。设计船用喷头采用螺旋内流道，使液体在室内进行强烈的旋转，以提高水雾动能，加强离心雾化效果，增强灭火能力。运用STAR-CCM+对直射式喷头和改进的离心喷头进行对比分析，得到流场以及流场内有关面上的压力、速度、流动迹线以及液相水的体积分数。结果表明，螺旋流道的离心结构喷头可以增大喷雾半径、扩大保护范围、提升灭火效果。

关键词: 船用细水雾喷头, 雾化灭火, 离心结构, STARCCM+仿真

Abstract: According to the atomization and fire extinguishing mechanism of the liquid, analyze the droplet formation and breaking process of the water mist, the factors that affect the atomization of the liquid, and the advantages and disadvantages of various marine water mist nozzle structures to obtain the basic requirements of water mist atomization for nozzles. The design of marine sprinklers uses spiral internal flow channels to make the liquid rotate strongly at indoors to increase the kinetic energy of the water mist, enhance the centrifugal atomization effect, and enhance the fire extinguishing capability. Using STARCCM+to compare and analyze the direct jet nozzle and the improved centrifugal nozzle, the flow field and the pressure, velocity, flow trace and the volume fraction of liquid water on the relevant surface in the flow field are obtained. The results show that the nozzles with a centrifugal structure with spiral flow channel can increase the spray radius, expand the protection
range, and enhance the fire extinguishing effect.

Key words: marine water mist nozzle, atomized fire extinguishing, centrifugal structure, STAR-CCM+ simulation

王震, 王杰, 陈超, 路书虎, 尹群. 船用细水雾灭火喷头结构优化与分析[J]. 消防科学与技术, 2020, 39(9): 1253-1256.

WANG Zhen, WANG Jie, CHEN Chao, LU Shu-hu, YIN Qun. Structure optimization and analysis of marine water mist fire extinguishing nozzle[J]. Fire Science and Technology, 2020, 39(9): 1253-1256.