【作者】 张文成；

【导师】 黄寅生；

【作者基本信息】 南京理工大学 ， 安全技术及工程， 2013， 硕士

【摘要】 本文通过正交试验法研究了水基灭火剂的配方,以灭火时间为衡量尺度找到了A：十二烷基硫酸钠、B：尿素、C：EDTA二钠、D：聚乙二醇(2000)、E：乙二醇、F：十二烷基苯磺酸钠、G：熟胶粉七种添加剂的最佳配方为80：0：4：20：5：20：16。根据配方研究实验中出现的灭易挥发有机溶剂火较难的不足又对水基灭火剂的成份进行了进一步的改进,着重研究了叔丁醇、MnCl2溶液、受热产生惰性气体物质、氟碳表面活性剂等添加剂对灭火效率的影响,在此基础上完善了水基灭火剂各添加剂的比例。依照国家标准对配制的水基灭火剂进行了各方面的技术性能测试和灭火实验,结果表明所配制的水基灭火剂完全符合国家规定的各方面技术要求和灭火性能。为了更好地发挥水基灭火剂的灭火性能,提高灭火效率,作者通过爆炸抛撒来施加灭火剂,对爆炸抛撒装置的研究主要在长径比、中心抛撒药与约束管壳的匹配、中心抛撒药量、上下两端结构强度等因素,通过高速摄影找到了各条件的最佳参数为长径比1.5、铝制8#工业雷管壳做中心药容器、500N压药压力、0.1%-0.5%的比药量、上下两端结构加强、中部爆炸抛撒。依据该参数制作了一个1000mL的爆炸抛撒灭火装置成功的将1m2的油池火迅速控制并扑灭,其灭火剂用量和灭火时间较传统灭火方式有了质的飞跃。紧接着就对该爆炸抛撒装置的安全性进行了研究,结果显示该装置安全可靠不会对人员和物体造成不必要的损害。最后,用模拟软件ANSYS/LS-DYNA对爆炸抛撒过程的压力进行了模拟计算,从一定程度上佐证了该爆炸抛撒过程的安全可靠性。更多还原

【Abstract】 This article uses the orthogonal experiment method to study the formulation of water-based fire extinguishing agent, extinguishing time as the measure to find the best recipe of A:sodium dodecyl sulfate, B:urea, C:EDTA disodium, D:polyethylene glycol (2000), E:ethylene glycol, F:twelve benzene sulfonate andG:cooked powder. The ratio is80:0:4:20:5:20:16. A further improvement of the ingredients of the water-based fire extinguishing agent according to the shortfall in the formulation research experiments of extinguishing volatile organic solvents, focuses on the tertiary butanol, MnCl2solution, the heat generating inert gas substances, fluorocarbon surface and other additives on the fire extinguishing efficiency, on this basis to improve the proportion of each additive in a water-based fire extinguishing agent. Formulated water-based fire extinguishing agent in accordance with the national standards for all aspects of technical performance test and extinguishing experiment, the results showed that the preparation of water-based fire extinguishing agent fully comply with all aspects of the technical requirements prescribed by the State and extinguishing performance. In order to better play water-based extinguishing performance, improve the efficiency of extinguishing the author uses explosion tossed the extinguishing agent. The study of the explosion tossed device mainly in the aspect ratio, the center shed medicine constraint shell and tube the match, center shed dose, the upper and lower ends of the structural strength and other factors, by the high-speed photography the best parameters of the various conditions was the ratio1.5,8#aluminum industrial detonator shell do center drug container,500N pressure, than the dose of0.1%to0.5%, the upper and lower ends of the structure to strengthen, Central explosive dispersal. Based on the parameters produced an1000mL explosive shed fire extinguishing device was made and it successfully control and extinguishing1m2oil pool fire. The fire extinguishing agent dosage and fire extinguishing time has been a qualitative leap compare with traditional extinguishing. Followed the explosion tossed device security study results show that the device is safe and reliable without damage to persons and objects. Finally, simulation the pressure of the explosion tossed process use ANSYS/LS-DYNA, the simulated shows that the the explosion tossed process security and reliability in some extent explains.更多还原