焊管2023，Vol.46Issue(12)：20-27,8.DOI:10.19291/j.cnki.1001-3938.2023.12.004
基于PHAST的天然气管道泄漏后果危害范围模拟研究
PHAST-based Simulation of Hazard Range of Consequences of Natural Gas Pipeline Leakage
摘要
Abstract
In order to solve the problems of accidents caused by natural gas pipeline leak,based on relevant calculation theories and injury criteria,PHAST software was used to analyze factors such as different transmission pressures,leak aperture,ambient wind speed,and leak direction,and determine the range of casualties for indoor and outdoor personnel under different working conditions.Research has shown that the most serious factor affecting fire and explosion accidents is the leakage bore diameter,and the impact size on the radius of casualties is fireball>jet fire>vapor cloud explosion,and the distance of casualties caused by accidents is greater outdoors than indoors.According to the national relevant calculation formulas,the potential impact radius of a certain pipeline under operating conditions is slightly lower than the simulated value.Therefore,the setting of the potential impact radius in the national standard is slightly conservative.The research results can provide reference for the study of the influencing factors and hazard range of natural gas dispersion.关键词
天然气管道/喷射火/火球/蒸气云爆炸/PHASTKey words
natural gas pipeline/jet fire/fireball/vapour cloud explosion/PHAST分类
能源科技引用本文复制引用
詹文文,牛辉,韦奉,刘斌,王磊,赵红波,席敏敏,许铎..基于PHAST的天然气管道泄漏后果危害范围模拟研究[J].焊管,2023,46(12):20-27,8.基金项目
中国石油天然气集团有限公司前瞻性基础性及战略性技术攻关课题"中长距离管道纯氢/掺氢输送关键技术研究"(项目编号2021DJ5002(JT)). （项目编号2021DJ5002(JT）
