细水雾抑制受限空间油池火的实验研究
时间:2020-11-26 20:39 来源:毕业论文 作者:毕业论文 点击:次
摘要为了研究细水雾与受限空间油池火火焰相互作用的基本特性, 掌握细水雾抑制受限空间火焰的实验方法,采用汽油为火焰燃料,在 3m×3m×3m(长×宽×高)的受限空间内,采用同一种细水雾喷头分别对不同的喷射压力、不同的油池尺寸、不同的预燃时间三种条件下的油池火进行了灭火实验, 实验过程中采用热电偶对火焰的温度进行测量,用录像记录灭火时间,得到了不同喷水压力、不用油池尺寸、不同预燃时间条件下的细水雾灭火的影响规律, 为细水雾抑制受限空间火焰提供了实验方法。实验表明,喷射压力越大灭火速度越快,相同条件下油池增大灭火速度加快,预燃时间越短灭火速度越快,效果越好。 59966 毕业论文关键词 细水雾 受限空间 油池火 喷射压力 火焰功率 预燃时间 Title Experimental Study of Water Mist Suppression Pool_______ Fire in Confined Spaces___________________ Abstract In order to study the basic characteristics of the interaction of water mist confined space pool fire flame,and the experimental methods of master water mist confined space flame.We use gasoline as fuel,and experiment in a confined spaces of 3m×3m×3m(length×width×height) with a certain type of water mist nozzle. A series of experiments were performed under various injection pressure, different size of oil pool and preignition time. Thermocouples and camera were used to measure the temperature and extinguishing time in the flame. The effect of injection pressure, size of oil pool and preignition time on the affectivity of water mist suppressing pan fire was gained.The study provides an experimental method for water mist confined space flame. Experiments show that the greater the injection pressure fire extinguishing faster, under the same conditions the greater the oil pool fire extinguishing faster,and the shorter the preignition timefire extinguishing faster. Keywords Water Mist Confined Space Pool Fire Injection Pressure Size of Oil Pool Preignition Time 目录 1绪论.1 1.1课题背景与意义1 1.1.1细水雾灭火技术1 1.1.2受限空间油池火3 1.1.3灭火的定义及方式3 1.1.4细水雾灭火技术的研究现状4 2实验平台与实验内容.5 2.1实验平台.5 2.2主要工作与研究内容.6 2.2.1研究内容6 2.2.2研究参数6 3细水雾抑制受限空间油池火的影响因素研究.7 3.1细水雾喷射压力对灭火特性的影响.7 3.1.10.6MPa压力实验7 3.1.20.7MPa压力实验9 3.1.30.8MPa压力实验.10 3.1.40.9MPa压力实验.11 3.1.51.0MPa压力实验.12 3.1.61.1MPa压力实验.14 3.1.7研究小结.15 3.2油池尺寸对灭火特性的影响.16 3.2.120×20cm方形油池实验.16 3.2.2直径10cm圆形油池的实验18 3.2.3直径20cm圆形油池的实验19 3.2.4研究小结.19 3.3预燃时间对灭火特性的影响.20 3.3.160s预燃时间的实验20 3.3.270s预燃时间的实验21 3.3.3研究小结.22 结论.24 致谢.26
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