气体泄漏动态模拟与辅助决策技术研究

Research on dynamic simulation and decision-making technology of gas leakage

针对石化企业气体泄漏应急管理问题,分析气体泄漏扩散的经典高斯模型,并结合经典模型中的瞬时模型和连续扩散模型的优缺点,提出了改进的动态连续烟团积分气体扩散模型,基于GIS实现泄漏扩散的动态可视化展示。结合加权最短路径优先算法,构建多目标多任务的气体泄漏应急过程的动态研判模型,实现事故状态下的应急物资快速调度和应急疏散指引等辅助决策功能并与GIS界面结合。系统可为突发性气体泄漏事故下的应急指挥与管理提供有效的辅助决策依据。

According to the emergency management problems of gas leakage in petrochemical enterprises,the classical Gauss mod⁃el of gas leakage and diffusion is analyzed.Combined with the ad⁃vantages and disadvantages of the instantaneous model and the con⁃tinuous diffusion model in the classical model,an improved dynam⁃ic continuous puff integral gas diffusion model is proposed to real⁃ize the dynamic visualization display of leakage and diffusion based on GIS.Combined with the weighted shortest path priority algo⁃rithm,the dynamic evaluation model of multi-objective and multitask gas leakage emergency process is constructed,which realizes the assistant decision-making functions such as rapid dispatch of emergency materials and emergency evacuation guidance under ac⁃cident conditions.The system provides an effective assistant deci⁃sion-making basis for emergency command and management under sudden gas leakage accidents.