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 ›› 2024, Vol. 43 ›› Issue (2): 161-167.

• • 上一篇    下一篇

高高原受限空间内小尺度油池火燃烧特性试验研究

代尚沛1,2, 贾旭宏1,2, 丁思婕1,2, 朱新华1,2   

  1. (1. 中国民用航空飞行学院 民机火灾科学与安全工程四川省重点实验室,四川 广汉 618307;2. 康定机场高高原航空安全实验室,四川 康定 626000)
  • 出版日期:2024-02-15 发布日期:2024-02-15
  • 作者简介:代尚沛(1999- ),男,重庆垫江人,中国民用航空飞行学院研究生,主要从事低压环境下液体燃料蒸发与燃烧行为的研究,四川省德阳市广汉市南昌路四段46号,618307。
  • 基金资助:
    四川省自然科学基金项目(2022NSFSC0302)

Experimental study on the combustion characteristics of small size oil pool fires in confined spaces in high plateaus

Dai Shangpei1,2, Jia Xuhong1,2, Ding Sijie1,2, Zhu Xinhua1,2   

  1. (1. Sichuan Key Laboratory of Civil Aircraft Fire Science and Safety Engineering, Civil Aviation Flight College of China, Sichuan Guanghan 618307, China;2. High Plateau Aviation Safety Laboratory, Kangding Airport, Sichuan Kangding 626000, China)
  • Online:2024-02-15 Published:2024-02-15

摘要: 为研究我国高高原地区的受限空间内液体燃料小尺度油池火燃烧特性,在高高原康定机场自主搭建受限空间内油池火的试验平台。共选取3类典型液体燃料(航空煤油、航空汽油、正庚烷)进行燃烧试验,测量火焰高度、火焰温度和烟气成分等变化规律,研究了高高原受限空间内小尺度油池火行为。研究发现:在高高原地区,正庚烷稳定燃烧阶段的平均火焰高度可以通过模型 L/D=k+0.254Q(2/5)/D 表示,其中,火焰高度与压力之间的关系式为 /D~p(-2/9)。3种燃料的火焰最高温度均超过600 ℃,而羽流轴线温升与火焰高度呈现-5/3的指数关系。产烟速率则表现出对环境压力的依赖性,其关系可表示为:v~p(-1/3)

关键词: 高高原受限空间, 油池火, 火焰高度, 火焰温度, 烟气成分

Abstract: To study the combustion characteristics of small?scale oil pool fires of liquid fuels in confined spaces in high plateau areas of China, a test platform for oil pool fires in confined spaces was built under high plateau conditions at Kangding Airport. Three types of typical liquid fuels (aviation paraffin, aviation gasoline and n-heptane) were selected for combustion tests, and the changes in flame height, flame temperature and smoke composition were measured to study the behaviour of small?scale oil pool fires in confined spaces on high plateaus. The results show that: the average flame height model for the stable stage of n-heptane in the plateau region is derived: L/D=k+0.254Q(2/5)/D , the relationship between flame height and pressure is L/D~p(-2/9); the maximum flame temperature of all three fuels exceeds 600 ℃, the plume axis temperature rise and flame height is -5/3 exponential relationship; the ambient pressure dependence of smoke production rate is:v~p(-1/3).

Key words: confined space in high plateau, oil pool fire, flame height, flame temperature, gas components