连通容器泄爆过程的影响因素

发布时间：2018-04-08 19:17

本文选题：爆炸力学　切入点：管道长度　出处：《爆炸与冲击》2016年04期

【摘要】：以甲烷/空气混合物为研究对象,开展了连通容器气体泄爆影响因素的实验研究。结果表明:连通容器泄爆片泄爆时,随着破膜压力和量纲一泄压比的减小,大、小球容器的最大泄爆压力均增大;在等量纲一泄压比条件下,随着连接管道长度的增加,传爆容器的最大泄爆压力增大。连通容器无膜泄爆时,大球点火条件下,无论管长如何,起爆容器和传爆容器均比单个容器最大泄爆压力大。小球点火条件下,当管道长度为0.45 m时,起爆容器和传爆容器的最大泄爆压力均小于单个容器。连通容器无膜泄爆且量纲一泄压比相同时,当管道长度为0.45 m时,大、小容器内的最大泄爆压力基本相等;当管道长度为2.45 m时,大容器点火时,传爆容器最大爆炸压力大于起爆容器,但小容器点火时,起爆容器最大泄爆压力大于传爆容器;当管道长度为4.45和6.45 m时,传爆容器最大泄爆压力均大于起爆容器。
[Abstract]:Taking methane / air mixture as the research object, the experimental study on the influence factors of gas explosion in connected vessel was carried out.The results show that the maximum venting pressure increases with the decrease of film breaking pressure and dimensionality pressure ratio, and increases with the increase of the length of the connection pipe under the condition of equal dimension and one discharge pressure ratio.The maximum venting pressure of detonation vessel is increased.Under the condition of large ball ignition, the maximum venting pressure of detonation vessel and detonation transmission vessel is higher than that of single vessel, regardless of the length of pipe.When the length of pipe is 0.45 m, the maximum venting pressure of detonation vessel and transmission vessel is smaller than that of a single vessel.The maximum venting pressure in a large and small vessel is basically equal when the length of the pipe is 0.45 m, and when the length of the pipe is 2.45 m, the maximum venting pressure of the large vessel is almost the same, and when the length of the pipe is 2.45 m, the maximum venting pressure in the small vessel is basically the same.The maximum explosion pressure of the detonation vessel is greater than that of the priming vessel, but the maximum venting pressure of the detonation vessel is greater than that of the detonation vessel when the small vessel is ignited, and when the length of the pipeline is 4.45 and 6.45 m, the maximum venting pressure of the detonating vessel is higher than that of the priming vessel.
【作者单位】：南京工业大学安全科学与工程学院江苏省危险化学品本质安全与控制技术重点实验室;
【基金】：国家自然科学基金项目(50904037,51376088) 江苏省高校自然科学基金项目(11KJA620001,10KJB620001) 江苏省“六大人才高峰”高层次人才计划资助项目(2014-XNY-007) 江苏省高校“青蓝工程”中青年学术带头人计划资助项目(SJ201216) 南京工业大学爆炸科学与技术国家重点实验室开放课题资助项目(KFJJ16-03M)
【分类号】：O643.22

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