Compressed air production process flow

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This post was last edited by Ameba on 2016-7-28 at 12:14. Air, after being compressed by a compressor, gains increased pressure and thus acquires the ability to do work; this is what is known as compressed air. Compressed air compressors can be classified into piston-type, rotary-type, centrifugal-type, and axial-flow-type based on their operating principles. The processes involved in compressing air as well as the auxiliary equipment used are generally similar across these types. Air passes through an air filter to remove dust and impurities from the atmosphere. It is then drawn into a compressor where it undergoes the first stage of compression, resulting in an increase in both pressure and temperature. The air is subsequently cooled by an intermediate cooler, which reduces its temperature and allows condensate water to be removed. After entering the next stage of compression, the air pressure increases further and the temperature rises as well. In the case of a two-stage compressor, the compressed air reaches the rated pressure required by the equipment. It is then cooled by a final cooler, which lowers the temperature of the compressed air and helps to remove more condensate water and impurities. Solid particles, dust, microparticles, and other contaminants are filtered out using a filter, after which the air flows into a dryer for drying. Finally, the clean and dry gas is sent to the devices that require it, via a gas storage tank. In reciprocating piston air compressors, the air storage tank serves to stabilize pressure, ensuring that the equipment that uses air is not affected by the pulsating output of the air compressor. In centrifugal compressors, it helps to reduce the impact of fluctuations in the air consumption by various users on the compressor’s operating conditions, thereby preventing the risk of surge.