天然气泄漏和气站站址选择

Natural Gas Leakage and the Choice of Natural Gas Station

分析了天然气站站址选择考虑因素之一——天然气泄漏对下风向大气浓度的影响。通过建立数学模型,并运用基于统计学理论的高斯扩散模型,以某城市为例,进行了模拟计算。并分析了计算结果,表明,泄漏后的扩散浓度还不足以达到天然气爆炸的极限浓度,因此,该方面可作为站址选择的次要因素考虑,在特殊情况下,站址可不严格位于城市常年主导风向的下风向。

This article analysized one factor in choosing address of natural gas station-the influence on gas concentration of leakage natural gas. By establishing relevant mathematics model, a real example was calculated using Gauss fume model which is based on statistical theory. The results showed that the diffusing concentration of natural gas is far away from the range of explosion. So, the author pointed out that it should be the subordination factor in considering the position of natural gas station and in some cases, the station can not be strictly in the backward position of the city's main wind.