How is compressed air for instruments produced?
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This post was last edited by muqian*a on 2012-9-28 at 15:58. As the title suggests, what is the manufacturing process for compressed air used in instruments? What processes have been carried out, and what equipment has been used? If there are flowcharts or block diagrams, they can also be sent to the email yanqing7020@163.com. Thank you very much!
That stuff is also called instrument air; it is purified compressed air obtained by compressing air and then removing water, oil, dust, as well as corrosive components. The requirements regarding water content are generally determined with reference to the local extreme minimum temperature, ensuring that the dew point of the compressed air is below this lowest extreme temperature; of course, these requirements can be relaxed somewhat during summer.
Thank you. Is there any more detailed information? How are processes such as compression, water removal, oil removal, dust removal, and removal of corrosive components actually carried out?
It is instrument air; the purified air obtained after passing through the molecular sieve in air separation can be used as instrument air. It is dry air obtained by purifying and compressing air, with moisture, carbon dioxide, and other substances removed using molecular sieves. An air compression station generally compresses the air, cools it, removes the condensed water, then sends the air to a drying device for further drying, and finally filters out dust as well as oil and water from the air. The required pressure dew point for instrument air is -20°.
It’s just air compression, simple pre-cooling and purification, followed by concentration
It’s the air compressor: air enters from the air compressor, is compressed, then goes into the gas-liquid separator, followed by the pre-filter. The gas that emerges then enters the dryer, and after passing through the post-filter, it reaches the instruments…… I have carried out simple design work for air compressor station layouts, and I hope this can be of some help to the original poster
Instrument compressors generally use screw compressors, followed by filters, dryers, buffer tanks, etc