动态变压货舱火行为及烧穿防火内衬层能力研究*

doi:10.16265/j.cnki.issn1003-3033.2021.09.014

中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (9): 99-105.doi: 10.16265/j.cnki.issn1003-3033.2021.09.014

动态变压货舱火行为及烧穿防火内衬层能力研究^*

王伟^1,2 助理研究员, 王坚³, 王丽斌⁴, 杨君涛¹ 副研究员, 张永丰¹ 研究员

1 应急管理部上海消防研究所灭火理论研究室,上海 200032;
2 上海倍安实业有限公司,上海 200032;
3 清华大学公共安全研究院,北京海淀 100084;
4 山东省交通运输监测与应急处置中心,山东济南 250002

收稿日期:2021-06-14 修回日期:2021-08-11 出版日期:2021-09-28 发布日期:2022-03-28
作者简介:王伟 (1987—),男,山东滨州人,博士,助理研究员,主要从事航空火灾防控、低压低氧燃烧、火灾动力学、灭火基础理论等方面的研究。E-mail: wangw8799@163.com。
基金资助:
国家自然科学基金青年项目资助(51706122); 上海市青年科技启明星计划项目(20QB1401000);上海市自然科学基金面上项目资助(19ZR1411500);贵州省科技计划项目(黔科合支撑[2020]4Y055号)。

Study on fire behavior characteristics and it's burn-through capability to cargo liner in dynamic pressure cargo compartment

WANG Wei^1,2, WANG Jian³, WANG Libin⁴, YANG Juntao¹, ZHANG Yongfeng¹

1 Firefighting Theory Laboratory, Shanghai Fire Science and Technology Research Institute of MEM, Shanghai 200032, China;
2 Shanghai Beian Industry Co.Ltd, Shanghai 200032, China;
3 Institute of Public Safety Research, Tsinghua University, Beijing 100084, China;
4 Transport Mintoring and Response Center of Shandong, Jinan Shandong 250002, China

Received:2021-06-14 Revised:2021-08-11 Online:2021-09-28 Published:2022-03-28

摘要/Abstract

摘要： 为探究飞机货舱由降压抑灭火带来的动态变压环境对火行为的控制作用和火灾烧穿能力的影响机制,提升火灾防控能力,模拟近真实的货舱应急动态变压环境,开展一系列油池火灾和防火内衬层耐烧穿试验。研究结果表明:降压会增加油类火灾的火焰高度并抬升火焰高温区,导致火焰与货舱天花板直接接触。防火内衬层限制火焰高度、空气卷吸和热气流逸出,在内衬层下方形成射流燃烧,增大火焰与内衬层的接触面积,而且增强对火灾的热反馈作用。由降压引起质量燃烧速率的降低导致燃烧时间更长,火焰高温区与内衬层的接触时间增长,烧损膨胀区域和炭化区域均较大,火灾损伤更为严重。

关键词: 动态变压, 飞机货舱, 火行为, 防火内衬层, 烧穿能力

Abstract: In order to explore control effect of dynamic pressure caused by depressurization on fire behavior and mechanism on the burn-through ability and enhance fire prevention capability, nearly real emergency dynamic variable pressure environment was constructed, a series of fire resistance tests of oil pools and fire lining were carried out. The results show that depressurization could increase flame height and raise high temperature area, resulting direct contact between flames and cargo compartment ceiling. Cargo liner limited flame height, air entrainment and hot air escape. Raised flame forms jet fire below cargo liner, increased contact area between flame and cargo liners, and enhanced thermal feedback. The decreased mass burning rate led to longer burning time and contact time between flame high temperature area and cargo liner, burned expansion area and carbonized area of cargo liner are larger, and more serious burning damage.

Key words: dynamic pressure, aircraft cargo, fire behavior, fireproof lining, burn-through capability

中图分类号:

X932

王伟, 王坚, 王丽斌, 杨君涛, 张永丰. 动态变压货舱火行为及烧穿防火内衬层能力研究^*[J]. 中国安全科学学报, 2021, 31(9): 99-105.

WANG Wei, WANG Jian, WANG Libin, YANG Juntao, ZHANG Yongfeng. Study on fire behavior characteristics and it's burn-through capability to cargo liner in dynamic pressure cargo compartment[J]. China Safety Science Journal, 2021, 31(9): 99-105.

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动态变压货舱火行为及烧穿防火内衬层能力研究^*

Study on fire behavior characteristics and it's burn-through capability to cargo liner in dynamic pressure cargo compartment

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