: the influence of moisture on air compressor system itself contains a large amount of moisture in the air humidity is bigger, especially in jiangsu and zhejiang area, air compressor room temperature humidity air inhaled with plenty of water, caused by the compressed air temperature, normal screw air compressor air outlet temperature also want to 40 ℃ - 50 ℃, the piston type air compressor outlet temperature is higher, to 80 ℃, 100 ℃, the process, a lot of water is vaporized in the air, but in the process of compressed air in the pipe will not cool, and in the temperature of the compressed air using occasions (gas) is far lower than the temperature of the compressed air, we know from physical principle, the cooling process or temperature difference will have water precipitation. Without forced drying process of wet compress air in the factory is generally not used directly, because water will use gas equipment corrosion, increase equipment failure rate, shorten the service life, affect the user normal production plan. Impurities in the water in contact with the product will affect the quality of our products and even lead to mass product is scrapped. At present, the commonly used dry processing way is using freeze dryer, is both mandatory frozen method is used to make hot compressed air cold to - 20 ℃, in the process of frozen precipitation water completely, even to use occasions - 20 ℃, there will be no water.