摘要
针对高压天然气管道泄漏后产生的喷射火事故,建立气体泄漏速率模型,计算分析喷射火危害半径并对其进行定量评价。结果表明,管道破裂时,管道压力达到0.7 MPa后,对气体泄漏速率影响很小;不同泄漏孔径下,喷射火的危害半径随管道压力增强而不断增加;当管道破裂孔径为1.0 m、管道压力为1.0 MPa时,喷射火热辐射对人员的伤害半径为152 m。该研究结果可为天然气管道泄漏喷射火事故的预防与应急救援提供参考。
According to jet fire accident caused by leakage of high-pressure natural gas pipeline,the gas release rate model was established,the hazardous radius of jet fire was quantitative evaluated and analyzed.The results show that when the ruptured pipeline pressure is beyond 0.7 MPa,pipeline pressure has a little effect on gas release rate.With pipeline pressure increasing,hazard radius of jet fire increase under different leakage apertures.When rupture aperture of pipeline is 1.0m and pipeline pressure is 1.0MPa,hazard radius of thermal radiation on humans harm is152 m.The conclusion of this study provides a reference for prevention and emergency of jet fire accidents.
出处
《武汉理工大学学报（信息与管理工程版）》
CAS
2016年第4期410-414,共5页
Journal of Wuhan University of Technology：Information & Management Engineering
基金
中国石油科技创新基金项目(2015D-5006-0605)
中国博士后科学基金项目(2014M560246)
关键词
天然气泄漏
喷射火
气体泄漏速率
热辐射
危害半径
natural gas leakage
jet fire
gas release rate
thermal radiation
hazardous radius
