Experiment Study on Water Mist to Extinguishing Gas Combustion Flame
Experimental platform for fine water mist extinguishing gas combustion flame was built, and water mist field was surveyed by Phase Laser Doppler Particle Analyzer. The best mist field parameter nozzle was picked up and series of experiments were carried out in the experimental platform. The action process between fine water mist and gas was studied and fine water mist extinguishing gas combustion mechanism was analyzed. The experiment indicated that under the case of 1.6MPa system stress and saunter diameter D32 of 67μm particle size, the fine water mist can extinguish burning gas within 7.4s. The mechanism of fine water mist extinguishing gas fire was endothermic cooling and vaporization of suffocation. Entrainment area formed in front of the mist-fire enlarged specific surface area, the strong disturbance and tensile function were generated by the fire, then, the burning intensity of fire was gradually decreased from conflagration to small fire, and at last, the instability led to the extinguishing of fire.
Water mist Gas combustion Flame nozzles Foggy field parameters
PAN Rongkun YU Minggao LIU Zhichao CHU Tingxiang
Department of Safety & Science Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, Chi School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, Chi
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
824-828
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）