| 高压细水雾喷头流量系数与雾场特性的关系 |
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| 引用本文： | 伍 毅,陆 林,凤四海,贺元骅.高压细水雾喷头流量系数与雾场特性的关系[J].科学技术与工程,2018,18(1). |
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| 作者姓名： | 伍 毅 陆 林 凤四海 贺元骅 |
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| 作者单位： | 中国民用航空飞行学院,中国民用航空飞行学院,中国民用航空飞行学院,中国民用航空飞行学院 |
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| 基金项目： | 2015年民航安全能力建设资金项目—《飞机库高压细水雾灭火系统适用规范研究》 |
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| 摘 要： | 喷头流量系数是细水雾系统设计喷头选型的关键设计参数之一,其决定细水雾的雾场特性从而直接影响细水雾系统的灭火性能。为了研究高压细水雾喷头流量系数与雾场特性的关系,构建了喷头及喷嘴雾场特性冷态实验平台,实验测量了两种流量系数的喷头(K=1.0,2.5)及其喷嘴的雾滴粒径分布、雾化锥角、雾场强度等雾场特性参数。实验结果表明系数K从1.0增大至2.5,喷嘴及喷头的雾化锥角、雾滴粒径分布及雾场强度都显著增大。
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| 关 键 词： | 高压细水雾 流量系数 雾滴粒径 雾化锥角 雾场强度 |
| 收稿时间： | 2017/6/5 0:00:00 |
| 修稿时间： | 2017/7/29 0:00:00 |
Relationship between Flow Coefficient of Nozzle and Water Mist Characteristics under High Pressure |
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| WUYI,LULIN,FENG and.Relationship between Flow Coefficient of Nozzle and Water Mist Characteristics under High Pressure[J].Science Technology and Engineering,2018,18(1). |
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| Authors: | WUYI LULIN FENG and |
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| Institution: | Civil Aviation Flight University of China,Civil Aviation Flight University of China,Civil Aviation Flight University of China, |
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| Abstract: | Flow coefficient of nozzle is one of key parameters of water mist nozzle for design and type selection. It also determines water mist characteristics and accordingly influence the fire-extinguishing ability of water mist directly. In order to investigate the relationship between flow coefficient of nozzle and water mist characteristics, a series of experiments were performed by using multi-nozzle and single nozzle water mist with different flow coefficients(K=1.0, 2.5). The spray angle, flux distribution, particle size distribution were measured and compared. The experimental results showed that, with increasing of flow coefficient, the characteristics of multi-nozzle and single nozzle water mist were all changed. |
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| Keywords: | high pressure water mist particle size spray angle flux distribution |
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