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[1]宋方智,刘长春,艾国栋,等.基于撞击法的喷雾射流粒径研究*[J].中国安全生产科学技术,2022,18(11):85-90.[doi:10.11731/j.issn.1673-193x.2022.11.012]
　SONG Fangzhi,LIU Changchun,AI Guodong,et al.Study on particle size of spray jet based on impingement method[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(11):85-90.[doi:10.11731/j.issn.1673-193x.2022.11.012]
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基于撞击法的喷雾射流粒径研究*()
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年11期
页码:
85-90
栏目:
职业安全卫生管理与技术
出版日期:
2022-11-30

文章信息/Info

Title:
Study on particle size of spray jet based on impingement method
文章编号:
1673-193X(2022)-11-0085-06
作者:
宋方智; 刘长春; 艾国栋; 刘思奇; 李存英; 段啸天; 张翌祥
(1.西安科技大学 安全科学与工程学院，陕西 西安 710054；
2.西安市西科城市安全与消防救援研究中心，陕西 西安 710054；
3.西安市城市公共安全与消防救援重点实验室，陕西 西安 710054；
4.陕西省工业过程安全与应急救援工程技术研究中心，陕西 西安 710054；
5.三一汽车制造有限公司，湖南 长沙 410100）
Author(s):
SONG Fangzhi;  LIU Changchun;  AI Guodong;  LIU Siqi;  LI Cunying;  DUAN Xiaotian;  ZHANG Yixiang
(1.School of Safety Science and Engineering,Xi’an University of Science and Technology;
2.Xi’an Xike Urban Safety and Fire Rescue Research Cente;
3.Xi’an Key Laboratory of Urban Public Safety and Fire Rescue;
4.Shaanxi Provincial Industrial Process Safety and Emergency Rescue Engineering Technology Research Center;
5.Sany Automobile Manufacturing Co.，Ltd.)
关键词:
撞击法; 喷雾射流; 雾滴测试; 粒径分布
Keywords:
impingement method;  spray jet;  droplet testing;  particle size distribution
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2022.11.012
文献标志码:
A
摘要:
为解决我国光学法仪器价格昂贵，操作复杂，在消防领域未能大范围应用的问题。基于撞击法的采样原理，提出新测试方法，并将其应用于消防领域喷雾射流现场测试。在不同的喷孔数量条件下，通过改变喷雾射流出口压力，观察并统计水雾携带的雾滴在载玻片上留下的印记，根据其直径和数量得出雾滴粒径的分布。研究结果表明：喷雾射流雾滴粒径值与平均直径预测模型的预测值和马尔文粒度仪测得的粒径值相近，水雾粒径随着出口压力的增大而减小，研究结果可为喷雾水枪性能测试和优化改造提供技术支持。
Abstract:
In order to solve the problem that the optical method recommended by the domestic fire protection standard cannot be widely used in the field of fire protection due to the expensive price and complex operation of the instruments,a new test method was proposed and applied in the field test of spray jet in the fire fighting field based pm the sampling principle of impingement method.Under different conditions of the number of spray holes,the distribution of droplet particle size was obtained by changing the outlet pressure of spray jet,observing and counting the imprints left on the slides by the droplets carried by water mist according to their diameters and numbers.The experimental results showed that the droplet size values of the spray jet were similar to those predicted by the mean diameter prediction model and those measured by the Malvern particle size analyzer,and the droplet size decreased with the increase of outlet pressure.The results can provide technical support for the performance testing and optimization of the spray gun.

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备注/Memo

备注/Memo:
收稿日期： 2022-03-19
* 基金项目： 2021年度应急管理部消防救援局科技计划重点研发项目（2021XFZD01）；陕西省自然科学基础研究计划项目（2022JM-281）；榆林市2020年科技计划项目（CXY-2020-032）
作者简介： 宋方智，硕士研究生，主要研究方向为火灾动力学、建筑防排烟以及清洁灭火技术。
通信作者： 刘长春，博士，副教授，主要研究方向为火灾动力学、建筑防排烟以及清洁灭火技术。
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