可燃气体 %VOL / ppm / %LEL 换算工具

v2.1.0 | 支持甲烷、乙烷、丙烷等常见可燃气体的浓度单位互转

浓度换算

常见可燃气体参数

气体名称 分子式 LEL (%VOL) UEL (%VOL) 100%LEL =
甲烷CH45.015.05.0%VOL = 50000 ppm
乙烷C2H63.015.53.0%VOL = 30000 ppm
丙烷C3H82.19.52.1%VOL = 21000 ppm
丁烷C4H101.88.41.8%VOL = 18000 ppm
氢气H24.075.04.0%VOL = 40000 ppm
乙烯C2H42.736.02.7%VOL = 27000 ppm
乙炔C2H22.581.02.5%VOL = 25000 ppm
一氧化碳CO12.574.212.5%VOL = 125000 ppm

计算公式

1 %VOL = 10000 ppm
%LEL = %VOL / LEL(%VOL) x 100

示例(甲烷,LEL = 5.0 %VOL):
  10%LEL = 5.0% x 10% = 0.5%VOL = 5000 ppm
  100%LEL = 5.0%VOL = 50000 ppm