Abstract: TNO multi-energy method suitable for explosion calculation in petrochemical enterprise is introduced, and the easy-using formula between explosion impact and distance is deduced. Based on the analysis of the explosion safe distance of building in standards and codes, the corresponding typical vapor cloud volume range is calculated by using the TNO multi-energy method. The methods of determining the blast resistant requirement of a building in the early stage of engineering by estimating the impact of a specific vapor cloud volume explosion are developed, and the examples are given.

Key words: TNO multi-energy method, petrochemical enterprise, building, blast resistant, vapor cloud, explosion strength

摘要： 对适用于石油化工企业爆炸计算的TNO多能法进行了介绍,推导了便于使用的爆炸影响与距离的关系式。结合对相关标准规范中爆炸的建筑安全距离的分析,利用TNO多能法计算相应的典型的爆炸蒸气云体积范围。给出了适用于工程前期阶段的估算爆炸蒸气云体积爆炸影响及建筑物抗爆需求的方法和实例。

关键词: TNO多能法, 石油化工企业, 建筑物, 抗爆, 蒸气云, 爆炸强度