细水雾-惰性气体协同灭火性能试验研究

doi:10.16265/j.cnki.issn1003-3033.2022.10.2237

中国安全科学学报 ›› 2022, Vol. 32 ›› Issue (10): 63-68.doi: 10.16265/j.cnki.issn1003-3033.2022.10.2237

细水雾-惰性气体协同灭火性能试验研究

罗振敏¹^,²^,³(), 王欣¹^,², 王涛¹^,²^,³, 孟子骐¹^,², 王子谨¹^,²

¹ 西安科技大学安全科学与工程学院,陕西西安 710054
² 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
³ 陕西省煤火灾害防治重点实验室,陕西西安 710054

收稿日期:2022-04-22 修回日期:2022-08-18 出版日期:2022-10-28 发布日期:2023-04-28
作者简介:
罗振敏 (1976—),女,山东济宁人,博士,教授,博士生导师,主要从事可燃性气体粉尘爆炸防控理论及技术研究。E-mail:zmluo@xust.edu.cn。
基金资助:
陕西省创新能力支撑计划(2020TD-021)

Experimental study on synergetic fire extinguishing performance of water mist and inert gas

LUO Zhenmin¹^,²^,³(), WANG Xin¹^,², WANG Tao¹^,²^,³, MENG Ziqi¹^,², WANG Zijin¹^,²

¹ School of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an Shaanxi 710054, China
² Shaanxi Engineering Research Center for Industrial Process Safety & Emergency Rescue, Xi'an Shaanxi 710054, China
³ Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi'an Shaanxi 710054, China

Received:2022-04-22 Revised:2022-08-18 Online:2022-10-28 Published:2023-04-28

摘要/Abstract

摘要：

为提高细水雾灭火效率,利用试验研究和数学模型分析,研究细水雾和惰性气体氮气(N₂)和二氧化碳(CO₂)的灭火性能及协同灭火效应。通过自主设计搭建的杯式燃烧器试验装置测试细水雾和惰性气体的单一及复合灭火效果,建立适用于细水雾和惰性气体的协同因子数学模型。结果表明:N₂灭乙醇火和庚烷火的最小体积分数分别为34.92%和31.97%,CO₂灭乙醇火和正庚烷火的最小体积分数分别为24.37%和 22.15%;从协同效应来看,细水雾与N₂存在正协同灭火效应,而与CO₂协同灭火效应不明显,N₂与CO₂之间没有表现出协同灭火效应。

关键词: 细水雾, 惰性气体, 协同灭火, 灭火性能, 杯式燃烧器

Abstract:

In order to improve the fire extinguishing efficiency of water mist, the fire extinguishing performance and synergistic fire extinguishing effect of water mist, inert gas nitrogen (N₂) and carbon dioxide (CO₂) were studied by experimental study and mathematical model analysis. The single and compound fire extinguishing effects of water mist and inert gas were tested by a self-designed cup burner test device, and a mathematical model of synergy factor suitable for water mist and inert gas was established. The results show that the minimum volume fractions of N₂ ethanol-extinguishing fire and heptane-extinguishing fire were 34.92% and 31.97%, respectively, and that of CO₂ ethanol-extinguishing fire and heptane-extinguishing fire were 24.37% and 22.15%, respectively. From the perspective of synergistic effect, there is a positive synergistic fire extinguishing effect between water mist and N₂, but the synergistic fire extinguishing effect with CO₂ is not obvious, and there is no synergistic fire extinguishing effect between N₂ and CO₂.

Key words: water mist, inert gas, collaborative fire extinguishing, fire extinguishing performance, cup burner

罗振敏, 王欣, 王涛, 孟子骐, 王子谨. 细水雾-惰性气体协同灭火性能试验研究[J]. 中国安全科学学报, 2022, 32(10): 63-68.

LUO Zhenmin, WANG Xin, WANG Tao, MENG Ziqi, WANG Zijin. Experimental study on synergetic fire extinguishing performance of water mist and inert gas[J]. China Safety Science Journal, 2022, 32(10): 63-68.

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燃料	U/(g·L^-1)
正庚烷	0.251
乙醇	0.263

细水雾-惰性气体协同灭火性能试验研究

Experimental study on synergetic fire extinguishing performance of water mist and inert gas

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燃料	惰性气体种类	C/%
正庚烷	N₂	31.91
正庚烷	CO₂	22.15
乙醇	N₂	34.92
乙醇	CO₂	24.37

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