Since the pre coolingairtemperature of nitrogen unit is too high, the measure and process design scheme for using the refrigerant water to reduce the pre-coolingairtemperature are recommended.
It works by drawing air through filters to remove dust and particles, then cooling it to just below the temperature at which dew forms.
该产品的原理是：通过过滤器抽取空气，除掉其中的灰尘和小颗粒，接着将空气冷却至水的凝点。
3
After cooler work principle is that use of the cooling medium (such as water or air) and after cooler the exit of compressed air temperature difference.