含有阻燃组元的可燃制冷剂爆炸极限的研究

The explosion limit of the flammable refrigerants containing nonflammable components

通过实验研究了R134a、R227ea、R125分别与6种可燃工质混合后,不同混合比时的爆炸极限的变化规律。在此基础上采用分组法建立了对含有阻燃组元的混合工质爆炸极限的估算模型,与文中得到的18组混合工质的爆炸极限实验曲线结合,可计算9种工质组成的多元混合工质的爆炸极限,研究结果可作为评价混合工质爆炸极限的依据。

The 18 sets of explosion limit of binary mixtures consist of one of the nonflammable refrigerants R134a, R227ea or R125 and one of the flammable refrigerants R290, R600, R600a, R32, R143a or R152a were measured. The explosion limit estimating method for the mixtures containing nonflammable and flammable components was established. The result can be used as the basis for the evaluation of the explosion limits of various mixtures.