LNG接收站气化器安全阀放空火灾后果模拟分析

Simulation Analysis of Fire Consequences Caused by Venting of Safety Valve of Vaporizer in LNG Receiving Terminal

近年来,LNG接收站数量逐渐增多,LNG的安全问题也愈发受到重视。LNG接收站中安全阀可以防止在故障情况下设备和管道的损坏,但是,大量的低温天然气通过安全阀泄放,可能会发生严重的火灾事故。本文以LNG接收站中较为常见的气化器安全阀排放为例,对气化器安全阀放空后火灾对周围储罐和工艺设备的影响进行研究,以指导LNG接收站的安全设计和运营。

In recent years,the number of LNG receiving terminals has gradually increased in China,and the safety of LNG has been paid more and more attention.The safety valve in the LNG receiving terminal can prevent the damage of equipment and pipelines in case of failure.However,a large amount of low-temperature natural gas may be discharged through the safety valve,which may cause serious fire accidents.Taking the discharge of vaporizer safety valve,which is common in LNG terminal,as an example,this paper studies the impact of fire on surrounding storage tanks and process equipment after venting of vaporizer safety valve,so as to guide the safety design and operation of LNG terminal.