中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (4): 105-110.doi: 10.16265/j.cnki.issn1003-3033.2021.04.014

• 安全工程技术 • 上一篇    下一篇

低压环境下不同直径油池火特征参量研究

刘全义1 副教授, 朱博1, 邓力1, 吕志豪1, 胡林1, 梁光华**2 研究员   

  1. 1 中国民用航空飞行学院 民航安全工程学院,四川 广汉 618307;
    2 清华大学 合肥公共安全研究院,安徽 合肥 230601
  • 收稿日期:2021-01-02 修回日期:2021-03-01 出版日期:2021-04-28 发布日期:2021-12-20
  • 通讯作者: **梁光华(1974—),安徽肥东人,硕士,研究员,主要从事公共安全监测预警、应急装备、智慧消防、安全文化等方面的研究。E-mail: ghliang@tsinghua.edu.cn。
  • 作者简介:刘全义 (1987—),男,河南郸城人,博士,副教授,硕士生导师,主要从事公共安全、航空消防与安全、新一代机载灭火技术等方面的研究。E-mail:quanyiliu2005@126.com。
  • 基金资助:
    国家自然科学基金资助(U1633203,U1733126);四川省科技计划项目(2018GZYZF0069);中国民用航空飞行学院基金资助(J2020-110, X2019-022);中国民用航空飞行学院大学生双创建设项目(S202010624137)。

Study on characteristic parameters of oil pool fire of different diameters in low pressure environment

LIU Quanyi1, ZHU Bo1, DENG Li1, LYU Zhihao1, HU Lin1, LIANG Guanghua2   

  1. 1 College of Civil Aviation Safety Engineering, Civil Aviation Flight University of China, Guanghan Sichuan 618307, China;
    2 Hefei Institute for Public Safety Research, Tsinghua University, Hefei Anhui 230601, China
  • Received:2021-01-02 Revised:2021-03-01 Online:2021-04-28 Published:2021-12-20

摘要: 为探究低压环境下油池火的发展特征、热释放速率(HRR)及火灾危害,在全尺寸低压HRR测试平台进行正庚烷与航空煤油不同油池直径的燃烧试验,测量低压环境不同直径下油池火热流密度、HRR及气体体积分数等特征参数,分析油池火热流密度、HRR、燃烧热量与气体体积分数等特征参数随油池直径变化的特征。结果表明:在热流计与油池距离一定时,热流密度随油池直径增大而增大;在油池直径一定时,热流密度随距离增大而减小;油池直径为10~20 cm时,正庚烷燃烧热量大于航空煤油;油池直径大于30 cm后,航空煤油燃烧热量更大;相同时间内正庚烷燃烧比航空煤油产生更多的CO2,燃烧更充分。

关键词: 低压环境, 油池火, 热流密度, 热释放速率(HRR), 气体体积分数

Abstract: In order to explore development characteristics, HRR and fire hazard of oil pool fire in low pressure environment, n-heptane and aviation kerosene combustion experiments for oil pool of different diameters were carried out based on full-scale low-pressure HRR test platform. Characteristic parameters of oil pool fire were measured, including heat flux density, HRR and gas concentration. Then, effects of pool diameter on these parameters were analyzed. The results show that when distance between heat flow meter and oil pool is constant, heat flux density increases with increasing diameter, but decreases with increase of distance when the diameter is constant. Combustion heat of n-heptane is greater than aviation kerosene as the diameter is 10-20 cm while that of the latter is greater when it is more than 30 cm. Moreover, combustion of n-heptane produces more CO2 than the other and burns more fully at the same time.

Key words: low pressure environment, oil pool fire, heat flux density, heat release rate(HRR), gas concentration

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