主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (8): 1222-1225.

• • 上一篇    下一篇

一种旋流式喷嘴的雾化实验研究

王文远,朱性哲   

  1. 河南工业职业技术学院,河南 南阳 473000
  • 出版日期:2021-08-15 发布日期:2021-03-15
  • 作者简介:王文远(1988-),女,河南南阳人,河南工业职业技术学院建筑工程学院讲师,硕士,主要从事建筑消防方面的研究工作,河南省南阳市孔明路666号,473001。

Atomization experimental research of a swirl nozzle

WANG Wen-yuan, ZHU Xing-zhe   

  1. Henan Polytechnic Institute, Henan Nanyang 473000, China
  • Online:2021-08-15 Published:2021-03-15

摘要:

细水雾喷嘴是细水雾灭火系统的关键部件。本文主要采用激光多普勒测试仪(LDV)和相位多普勒粒子测量仪(PDPA)对一种旋流式喷嘴进行雾化实验研究。通过实验得到了不同测试压力下,喷嘴的流量、流量特性系数K、雾化锥角θ、水平射程、索特尔平均粒径(SMD)和粒子轴向速度的分布情况,最后得到了这几个参数随测试压力的变化关系。所测试的细水雾灭火喷头具有较大的轴向动量和径向动量,有利于扑灭深位火灾和扩大灭火范围。

关键词: 细水雾灭火系统, 旋流式, 喷嘴, 雾化

Abstract:

Water mist nozzle is the key component of water mist fire extinguishing system. In this paper, laser Doppler tester (LDV) and phase Doppler particle tester (PDPA) are used to study the atomization experiment of a swirling nozzle. The distribution of nozzle flow rate, flow characteristic coefficient K, atomization cone angle θ, horizontal range, average particle size (SMD) and axial velocity of particles under different test pressures were obtained by experiments. Finally, the relationship of these parameters with test pressure was obtained. The water mist sprinkler in this work has large axial and radial momentum, which is beneficial to extinguishing deep fire and expanding the fire extinguishing range.

Key words: water mist system, swirling type, nozzle, atomization