Influential Factors of Gas Explosion Venting in Linked Vessels

摘要：

　　In this work, a series of experiments are conducted to study the influential factors of gas explosion venting for a methane-air mixture explosion in linked vessels.(1)For the linked vessels, the maximum explosion venting pressure in both the large and small vessels increases with decreasing rupture disk bursting pressure and the dimensionless ratio of the vent area to the vessel volume.For the case wherein the vent area to vessel volume is characterized by the same dimensionless ratio, the maximum venting pressures in both the primary and secondary vessels are higher than those in a single vessel regardless of the pipeline length when ignition occurs in the large vessel.(2)Comparatively, when explosion occurs without a disk and ignition occurs in the small vessel, the result is similar when the length of the pipeline is greater than 2.45 m.However, the maximum venting pressures in both the primary and secondary vessels are lower than those in a single vessel when the pipeline is 0.45 m in length.(3)When the dimensionless ratio of the vent area to the vessel volume is constant and venting without a rupture, the results are as follows.(a)The maximum explosion venting pressures in the large and small vessels are similar to each other when the pipe length is 0.45 m for explosion venting in linked vessels without a rupture disk.(b)When the pipe length is 2.45 m, the maximum explosion venting pressure in the primary vessel is higher than that in the secondary vessel when ignition occurs in the small vessel.This phenomenon is reversed when ignition occurs in the large vessel.(c)When the pipe length is 4.45 m or 6.45 m, the maximum explosion venting pressure in the secondary vessel is higher than that in the primary vessel.

关键词： linked vessels gas venting explosion pipe length ignition position dimensionless ratio of vent area to vessel volume

作者: CUI Yangyang WANG Zhirong MA Longsheng ZHEN Yaya SUN Wei

作者单位: Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, College of Safety and Engineering, Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, College of Safety and Engineering,

会议类型: 国际会议

会议名称: The 2016 International Symposium on Safety Science and Technology(2016安全科学与技术国际会议)

会议地点: 昆明

会议语种:英文

页码: 351-360

在线出版日期: 2016-10-17（万方平台首次上网日期，不代表论文的发表时间）