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。
2
Theoretical and practical circulation of air—compressor is researched in this paper in the theory of thermodynamics.
本文用热力学理论研究压气机的理论与实际循环。
3
The reasons of the scale depositing in the air compressor cooling water circulation system were analysed. And some treatment measures to the scale were given.