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

消防科学与技术 ›› 2021, Vol. 40 ›› Issue (8): 1195-1198.

• • 上一篇    下一篇

含NH4Cl添加剂细水雾对油池火灭火效果的研究

徐越群1，王丽洁1，吴晋湘2   

  1. 1.石家庄铁路职业技术学院，河北 石家庄 050041；2.河北工业大学 能源与环境工程学院，天津 300401
  • 出版日期:2021-08-15 发布日期:2021-08-15
  • 作者简介:徐越群（1978-），男，河北廊坊人，石家庄铁路技术学院博士，副教授，主要从事燃气燃烧与消防安全研究，河北省石家庄市四水厂路18号，050041。
  • 基金资助:

    河北省应用基础研究计划重点基础研究项目（13964503D）；河北省高等学校科学技术研究重点项目（ZD2021097）


Study on extinguishing effect of water mist containing NH4Cl additive on pool fire

XU Yue-qun1, WANG Li-jie1, WU Jin-xiang2   

  1. 1. Shijiazhuang Institute of Railway Technology, Hebei Shijiazhuang 050041, China; 2. School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China

  • Online:2021-08-15 Published:2021-08-15

摘要：

受限空间内的火灾是消防救援与火场疏散的难题。细水雾灭火系统能最大限度保护设备，与其他灭火剂相比具有良好的环保性能。为了更好地发挥灭火效果，采用在水中加入添加剂的方式以探究其对灭火的影响，在受限空间内开展含NH4Cl添加剂的细水雾对雾化效果的影响和灭油池火的实验，研究火焰形状变化、受限空间内温度变化以及添加剂浓度不同时的灭火效果，对受限空间内氧含量的变化进行监测分析。研究表明：在水中加入NH4Cl添加剂后，改变了喷雾的分布，雾场中心雾滴较密集，且随着NH4Cl浓度的增加雾滴粒径增大，雾化锥角变小。采用不同浓度的NH4Cl添加剂细水雾灭火时，受限空间内氧含量及灭火时间呈不同的变化，当添加剂浓度为2%时，物理与化学灭火的耦合机制能更好地发挥，灭火效果最佳。

关键词: 消防, 添加剂, 细水雾, 油池火, 灭火效果

Abstract:

Abstract: Fire in the confined space is a problem of fire rescue and fire evacuation. The use of water mist fire extinguishing system can protect the equipment to the maximum extent, and has good environmental protection performance compared with other fire extinguishing agents. In order to give full play to the fire extinguishing effect, the influence of additives in water on fire suppression was studied. The influence of NH4Cl additive on the atomization effect of the precipitation atomization system was carried out in the confined space. The fire extinguishing effect of flame shape change, temperature change of each measuring point and the concentration of additives were studied, and the change of oxygen content in confined space was studied The monitoring and analysis were carried out. The results show that the addition of NH4Cl additive in water has an effect on the atomization effect. The fire extinguishing time is obviously affected by the concentration of additives. There is the concentration of additives which make the best extinguishing effect. The coupling mechanism of physical and chemical fire extinguishing can be better played at this concentration.


Key words: fire safety, additive, water mist, oil fire, fire extinguishing effect