初始压力对连通容器甲烷-空气混合物爆炸压力的影响

发布时间：2018-02-05 23:52

本文关键词： 初始压力连通容器点火位置爆炸压力线性关系　出处：《南京工业大学学报(自然科学版)》2017年02期 　论文类型：期刊论文

【摘要】：建立小球形容器与两段管道连接、2个球形容器与3段管道连接的2种形式的爆炸实验装置,通过实验分析和理论分析研究初始压力对连通容器甲烷-空气混合物爆炸压力的影响。研究发现:相同条件下,球形容器接管后甲烷最大爆炸压力与初始压力呈近似的线性关系。连通容器甲烷爆炸时起爆容器压力始终低于传爆容器压力,起爆容器不同,两个容器内最大爆炸压力差均随着初始压力的增加逐渐增大。初始压力对不同结构和尺寸的球形容器、容器接管和连通容器甲烷最大爆炸压力的影响程度不同,可以用最大爆炸压力随初始压力的变化速率表示,最大爆炸压力变化速率越高,初始压力影响越大。
[Abstract]:Two kinds of explosion experimental devices are established, which connect small spherical vessel with two sections of pipe, two spherical vessel with 3 sections of pipe. The effect of the initial pressure on the explosion pressure of the methane-air mixture in the connected vessel was studied by experimental and theoretical analysis. There is an approximate linear relationship between the maximum explosion pressure of methane and the initial pressure after the nozzle of a spherical vessel. The pressure of the initiation vessel is always lower than that of the detonation vessel when the connected vessel methane explodes, and the initiation vessel is different. The maximum explosion pressure difference between the two vessels increases with the increase of the initial pressure, and the influence of the initial pressure on the maximum explosion pressure of methane in different structures and sizes of spherical vessels, vessel nozzle and connected vessel is different. The maximum explosion pressure can be expressed as the change rate of the maximum explosion pressure with the initial pressure. The higher the change rate of the maximum explosion pressure is, the greater the influence of the initial pressure is.
【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(51376088) 江苏省高校自然科学基金(11KJA620001,10KJB620001) 江苏省高校“青蓝工程”学术带头人培养计划江苏省“六大人才高峰”高层次人才计划
【分类号】：X932

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