爆炸气体或蒸气混合物的类别判定

CLASSIFICATION OF EXPLOSIVE GAS OR VAPOR MIXTURES

石油化工企业的生产装置在生产过程中会产生大量爆炸危险气体,需要选择合理的防爆电气及其他设备以保证工艺的装置安全生产。根据现行国内、外标准规范的要求,结合工程示例,研究分析了可燃性爆炸危险介质混合物的分类方法,给出对于含有氢气的爆炸危险气体的计算公式,并得出不是含有氢气的可燃性爆炸危险介质混合物都应为ⅡC的分类。

According to the requirements of the current domestic and foreign standards,this paper studies the classification method of combustible substance (gas or vapor) in mixtures with air combined with engineering examples.It is concluded that not all of the combustible substance (gas or vapor) in mixtures with air containing hydrogen shall be classified as IIC.