Screw air compressor exhaust oil content in general how much
When the screw air compressor is working, the gas discharged will contain a small amount of oil. Generally speaking, the oil content of each cubic meter of compressed gas is about three to five milligrams. Although this value looks very small, if the gas consumption is very large and accumulates over time, a lot of oil will still be accumulated in the pipelines and gas-using equipment.
The traditional oil-lubricated screw air compressor relies on oil to help seal between the rotors, and also uses oil to take away the heat generated during operation. Therefore, the exhaust with oil is a feature of this type of machine. Although it will pass through the oil and gas separation and filtration device, it cannot be completely removed.
The practice of water lubricated screw air compressor is completely different. It uses water instead of oil and undertakes the two tasks of sealing and cooling. The water forms a thin film of water between the rotors, sealing the gap and taking away the heat generated by friction. Because there is no oil in the whole compression process, the gas discharged is basically free of oil and very clean. This method is particularly suitable for those who require high gas purity occasions, such as food processing, pharmaceutical, electronic manufacturing industries.
