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The humidity of the air is reformed with the air state. When the air is compressed, its temperature rises and the relative humidity decreases. When the compressed air expands, the temperature of the air drops, the relative humidity increases, and usually there will be moisture. Precipitated from it. If the air contains too much moisture, the compressor has the following effects:

1. The moisture in the air narrows the compressed air passage and increases the resistance to air flow;

2, affect the gas volumetric efficiency;

3, is not conducive to the machine to compress, so that compression equipment and pneumatic machinery suffered hydraulic impact, if the cooler and the cylinder storage a lot of water, it will also cause damage to the machine;

4. The water in the air is very corrosive, which makes the compression equipment and pneumatic machinery easy to rust and shorten the service life;

5. The moisture in the gas is mixed with the lubricating oil during the compression process, which will reduce the lubricating efficiency and increase the abrasion of the machine parts. It will not only result in poor sealing but also cause deterioration of the lubricating oil in the rubber circulation lubricating filler.

6, a cubic meter of wet air (ie gas molecular density), is less than the same volume of dry air weight. At the same time, most of the water vapor is condensed when the compressed air passes through the cooler gas storage tank and the pipeline, so that the production capacity for the weight calculation will be reduced;

7. The purging system contains water. When the temperature is lower than 0 degrees, the water will freeze on the inner wall of the air duct. Similarly, the diameter of the pipe is reduced. The worse is that sometimes the individual pipes are completely frozen and hinder the individual sections. work. Therefore, the quality of compressed air depends not only on its pressure but also on its humidity.