What is the principle of action of the DEAR Liquid air separation unit (section-2 or section-3 valve) and how does it work?

Changes in entropy and enthalpy after throttling and expansion

Centrifugal compressor, sometimes suddenly produce strong vibration in the production process, gas medium flow and pressure also appear substantial pulsation, and accompanied by periodic dull "call" sound, as well as airflow fluctuations in the network caused by "huffing" "huffing" strong noise, this phenomenon is known as the centrifugal compressor wheezing conditions in small air separation unit. According to the prod...