air circulation pump

It has no compressor, need not freon, rely on the built-in pump let water in the machines, and will continuously circulation around the air cooling.

它没有压缩机，不用氟利昂，靠内置的水泵让水在机内不断循环，并将周围的空气冷却。

The air drying and final absorption towers are installed in series as an integral and share a circulation acid tank and pump with intermediate absorption tower.

干燥塔、二吸塔串接共塔，且与一吸塔共用循环槽、循环泵，即干燥塔的下塔酸直接引入二吸塔。

In petrochemical production, such methods as air compressing, pump circulation, mechanical blending and pipeline mixing are usually used in product mixing.

石油化工生产中常用的油品调合方法有压缩空气、泵循环、机械搅拌和管道调合。