基于FLACS模拟研究压缩天然气加气站泄漏事故后果  

Research on leakage of CNG filling station based on FLACS

作　　者：宋滋润 李晋[1] 闫世旭 王京昊 Song Zirun;Li Jin;Yan Shixu;Wang Jinghao(Liaoning Shihua University,Liaoning Fushun 113000)

机构地区：[1]辽宁石油化工大学,辽宁抚顺113000

出　　处：《石化技术》2022年第10期22-24,共3页Petrochemical Industry Technology

基　　金：大学生创新创业训练基金项目(项目编号:S2020101480040)。

摘　　要：随着世界经济的发展以及对环保的要求,越来越多的燃油汽车被天然气汽车所取代,压缩天然气加气站的数量也随之增加,由于天然气易燃、易爆的特殊性,由此带来的安全隐患和突发性的安全事故也越来越引起关注和重视。本文利用FLACS软件CASD模块对某压缩天然气(CNG)加气站进行建模,在此基础上对加气站天然气泄漏进行了模拟计算。研究结果表明,风场对于天然气泄漏后的气云分布影响显著,无风条件下,天然气发生泄漏后浓度相对集中,且沿泄漏口喷射方向逐渐降低。当天然气逆风泄漏时,气云沿风场方向扩散。当天然气顺风泄漏时,由于风场的影响,扩散气云的浓度较低。With the development of the world economy and the requirements for environmental protection,more and more fuel vehicles are replaced by natural gas vehicles,and the number of compressed natural gas filling stations has also increased.Due to the flammability and the particularity of explosiveness,the potential safety hazards and unexpected safety accidents brought about by this,have also attracted more and more attention and attention.This paper uses the FLACS software CASD module to model a CNG filling station,and on this basis,simulates the natural gas leakage of the filling station.The research results show that the wind field has a significant impact on the gas cloud distribution after the natural gas leak.Under no wind conditions,the concentration of natural gas after the leak is relatively concentrated,and it gradually decreases along the direction of the leak.When natural gas leaks against the wind,the gas cloud spreads in the direction of the wind field.When natural gas leaks downwind,the concentration of diffuse gas cloud is lower due to the influence of the wind field.

关 键 词：CNG加气站 天然气 泄漏 FLACS 风向 

分 类 号：TE88[石油与天然气工程—油气储运工程]