After comparison of the different methods, it is concluded that the dry air exsiccation is the most suitable for drying gas pipeline.
对各种方法进行了比较，干空气干燥法是干燥燃气管道最适合的方法。
2
The principle, process, influence factors, advantages and disadvantages of dry air exsiccation in flowing gas evaporation method and the preparation of dry air are introduced mainly.