由于燃气自身易爆炸、易扩散等特性,以及燃气设施设备的损坏老化问题,导致燃气泄漏事故时有发生。本文以高斯烟羽扩散模型为理论基础,研究与设计了城市燃气管网应急系统,实现了燃气设施设备管理、燃气泄漏应急、辅助救援决策等功能,为突发燃气泄漏事件的应急指挥、泄漏影响范围分析提供了数据基础。 Due to the gas itself easy to explode, easy to spread and other characteristics, as well as gas equipment damage aging equipment, resulting in gas leak accidents have occurred. In this paper, based on the Gaussian plume model, this paper studies and designs the urban gas pipeline emergency system, realizes the functions of gas facility equipment management, gas leakage emergency and auxiliary rescue decision, and provides emergency command and leakage for sudden gas leakage events Impact area analysis provides the data foundation.