泄漏天然气燃爆对邻近管道的影响研究
Study on the influence of leaking natural gas explosion on adjacent pipelines
刘愿琴 1刘海波 1朱红卫 2李文超 2张功晨鸣2
作者信息
- 1. 陕西延长石油(集团)有限责任公司油气勘探公司,陕西延安 716000
- 2. 中国石油大学(华东)海洋油气装备与安全技术研究中心,山东青岛 266580
- 折叠
摘要
并行敷设管道若出现泄漏燃爆会影响周围其他油气管道的安全运行.运用AUTODYN仿真软件研究泄漏天然气燃爆对管廊带内其他管道的影响,提出针对性的控制措施.结果表明,随着时间延长,不同爆心距条件下,管道受到的压力和振速均是先升高后降低,爆心距的大小与压力峰值、振速峰值等动力响应峰负相关.不同TNT当量条件下,随时间延长,管道受到的压力和振速均是先升高后波动减小,TNT当量大小与压力峰值、振速峰值正相关;并提出了增大并行间距、在并行管道间设置隔板等安全控制措施,通过定量计算事故发生的可能性以及后果可以合理准确地进行风险预测与安全评估.
Abstract
Once the leakage and explosion of parallel pipelines occurs,it will affect the safe operation of other surrounding oil and gas pipelines.The AUTODYN simulation software is used to study the impact of combustion and explosion of leaked natural gas on other pipelines in the pipe gallery,and the control measures are put forward.The results show that with the passage of time,the pressure and vibration velocity of the pipeline increase first and then decrease under different explosion center distance,and the explosion center distance is negatively correlated with the dynamic response peaks such as pressure peak and peak vibration velocity.Under different equivalent TNT,with the passage of time,the pressure and vibration velocity of the pipeline increase first and then decrease.The equivalent TNT is positively correlated with the peak pressure and peak vibration velocity.The safety control measures such as increasing parallel spacing and installing partitions between parallel pipelines are proposed.By quantitatively calculating the likelihood and consequences of accidents,it is possible to make reasonable and accurate risk predictions and safety assessments.
关键词
天然气/临近管道/泄漏/燃爆/超压Key words
natural gas/adjacent pipelines/leakage/combustion and explosion/overpressure引用本文复制引用
出版年
2024
NETL
NSTL
万方数据