防火间距是防止火灾蔓延扩大和减少火灾损失的有效措施, 防火间距设置不足起不到应有的防火作用, 设置过大则造成不必要的资源浪费, 合理设置防火间距的大小具有重要的现实意义。介绍了防火间距的成本-效益分析方法以及效益和成本的量化方法, 在此基础上, 以某液化石油气站为例, 通过成本－效益分析和具体的量化计算, 得出了净效益最大时的防火间距, 为防火间距的合理设置、降低成本提供了依据。
Fire separation distance is an effective measure to prevent fire spreading and reduce fire loss.The small fire separation distance is less effective and the large one is unnecessarily redundant.Setting rational fire separation distance is of practical significance.Cost-benefit analysis of fire separation distance and quantitative method on cost and benefit are introduced in the paper, based on which, and taking a liquefied petroleum gas station as an example, the best fire separation distance with maximum net contribution is obtained through the cost-benefit analysis and specific quantitative calculation.This paper offers guidance for setting reasonable fire separation distance and reducing its costs.
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