摘要
对天然气泄漏事故展开原理分析,将其按时间线拆解为泄漏、扩散及疏散三部分。对泄漏模型进行了分析研究,介绍了Gaussian扩散模型、一维模型和CFD方法等扩散模型,并对人员疏散时间的计算机模型和经验公式进行了比较分析。结合天然气泄漏事故现场的应用特点以及快速计算需求,设计开发天然气泄漏事故现场人员紧急疏散系统,为应急预案的制定及应急现场的管理提供帮助。
The natural gas leakage accidents are theoretically analyzed, and the process is summarized into 3 parts chronologically： leakage, diffusion and evacuation. The leakage models are analyzed, and the diffusion models such as Gaussian diffusion model, one-dimensional model and CFD are introduced. The computer model and empirical formulas for evacuation are compared. Considering the application characters and fast-cal culation requirements at natural gas leakage accident spots, an evacuation system in natural gas leakage accidents is developed to help with the emergency plan design and emergency management.
出处
《消防科学与技术》
CAS
北大核心
2010年第4期318-321,共4页
Fire Science and Technology
基金
上海市科学技术委员会资助项目(08251202802)
关键词
天然气
泄漏
扩散
疏散
应急救援
natural gas
leakage
diffusion
evacuation
emergency rescue
