金属丝状材料对预混气体爆炸影响规律研究
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摘要
在自主设计加工的气体爆炸瞬态压力实验装置中,填充Cu、Al、Ni、Fe金属丝状材料后分别进行甲烷-空气(体积比为12%)和丙烷-空气(体积比为8%)预混气体的密闭爆炸实验,测定爆炸瞬态压力变化情况并进行对比分析。研究结果表明:填充金属丝状材料后爆炸压力峰值明显减小,说明能够有效地抑制可燃气体的爆炸;不同金属丝状材料的抑爆效果有明显的差异,其中Ni、Fe金属丝状材料抑爆性能明显优于Cu、Al金属丝状材料;随着可燃气体的分子质量的增加,Ni、Fe金属丝状材料抑爆性能优于Al、Cu金属丝状材料抑爆性能的现象更加明显。
The closed explosion experiments were carried out with an independently designed gas explosion transient pressure test device,filled with Cu,Al,Ni,and Fe metal filamentary materials,and performed respectively under different premixed gases conditions including methane-air(12%)and propane-air(8%,V/V).The changes of the transient pressure in the explosion were tested and the comparative analysis was conducted accordingly.The experimental results show that the explosion pressure peak was significantly reduced after being filled with metal filamentary materials,Which proves that the metal filamentary materials can effectively suppress the explosion of combustible gas.It also can be also seen that Ni,Fe metal filamentary materials have better suppression performance than the Al,Cu metal filamentary materials in the explosion;It is evident that the explosion-suppress performance of Ni,Fe metal filamentary materials is better than that of Al,Cu metal filamentary materials with the increase of the molecular mass of combustible gas.
The closed explosion experiments were carried out with an independently designed gas explosion transient pressure test device,filled with Cu,Al,Ni,and Fe metal filamentary materials,and performed respectively under different premixed gases conditions including methane-air(12%)and propane-air(8%,V/V).The changes of the transient pressure in the explosion were tested and the comparative analysis was conducted accordingly.The experimental results show that the explosion pressure peak was significantly reduced after being filled with metal filamentary materials,Which proves that the metal filamentary materials can effectively suppress the explosion of combustible gas.It also can be also seen that Ni,Fe metal filamentary materials have better suppression performance than the Al,Cu metal filamentary materials in the explosion;It is evident that the explosion-suppress performance of Ni,Fe metal filamentary materials is better than that of Al,Cu metal filamentary materials with the increase of the molecular mass of combustible gas.
引文
[1]汤舟,谢宏.两起城市燃气管道事故案例分析[J].华北科技学院学报,2016,13(3):102-106.
[2]陈晶.“世界级”机械厂的气体爆炸惨剧[J].湖南安全与防灾,2015(8):36-37.
[3]王敏娟,何冷,徐亦飞.级联式天然气液化过程的分析[J].北京石油化工学院学报,2016,24(3):23-27.
[4]Holm J M.On the initiation of gaseous explosions by small flames[J].Philosophical Magazine Series 7,1932,14(89):18-56.
[5]Nie Baisheng,He Xueqiu,Zhang Ruming,et al.The roles of foam ceramics in suppression of gas explosion overpressure and quenching of flame propagation[J].Journal of Hazardous Materials,2011,192(2):741-747.
[6]Sun J H,Zhao Y,Wei C R,et al.The comparative experimental study of the porous materials suppressing the gas explosion[J].Procedia Engineering,2011,26(18):954-960.
[7]南子江,宋爱英,曹法和,等.铝合金抑爆材料抑爆性能研究[J].兵器材料科学与工程,2001,24(4):19-22.
[8]王凯全,乐林.可燃气体爆炸破坏效应的试验研究[J].中国安全科学学报,2012,22(3):61-66.
[9]高建村,庞磊,孟倩倩.HAN阻隔防爆技术研究进展[J].中国安全科学学报,2013,23(8):41-47.
[10]Shilpi Agarwal,Manoj Kumar,Chandra Shakher.Experimental investigation of the effect of magnetic field on temperature and temperature profile of diffusion flame using circular grating Talbot interferometer[J].Optics and Lasers in Engineering,2015,68:214-221.
[11]Masahisa Shinoda,Eisuke Yamada,Tsuyoshi Kajimoto,et al.Mechanism of magnetic field effect on OHdensity distribution in a methane-air premixed jet flame[J].Proceedings of the Combustion Institute,2005,30:277-284.
[2]陈晶.“世界级”机械厂的气体爆炸惨剧[J].湖南安全与防灾,2015(8):36-37.
[3]王敏娟,何冷,徐亦飞.级联式天然气液化过程的分析[J].北京石油化工学院学报,2016,24(3):23-27.
[4]Holm J M.On the initiation of gaseous explosions by small flames[J].Philosophical Magazine Series 7,1932,14(89):18-56.
[5]Nie Baisheng,He Xueqiu,Zhang Ruming,et al.The roles of foam ceramics in suppression of gas explosion overpressure and quenching of flame propagation[J].Journal of Hazardous Materials,2011,192(2):741-747.
[6]Sun J H,Zhao Y,Wei C R,et al.The comparative experimental study of the porous materials suppressing the gas explosion[J].Procedia Engineering,2011,26(18):954-960.
[7]南子江,宋爱英,曹法和,等.铝合金抑爆材料抑爆性能研究[J].兵器材料科学与工程,2001,24(4):19-22.
[8]王凯全,乐林.可燃气体爆炸破坏效应的试验研究[J].中国安全科学学报,2012,22(3):61-66.
[9]高建村,庞磊,孟倩倩.HAN阻隔防爆技术研究进展[J].中国安全科学学报,2013,23(8):41-47.
[10]Shilpi Agarwal,Manoj Kumar,Chandra Shakher.Experimental investigation of the effect of magnetic field on temperature and temperature profile of diffusion flame using circular grating Talbot interferometer[J].Optics and Lasers in Engineering,2015,68:214-221.
[11]Masahisa Shinoda,Eisuke Yamada,Tsuyoshi Kajimoto,et al.Mechanism of magnetic field effect on OHdensity distribution in a methane-air premixed jet flame[J].Proceedings of the Combustion Institute,2005,30:277-284.