Does anyone have experience in adjusting the compression ratio of a compressor?

The compression ratio of the compressor is basically determined after the compressor rotor stage is determined, and it is a non-adjustable parameter. Usually, the compressor outlet pressure is maintained within a certain range. Changes in inlet and outlet pressure will affect changes in the pressure ratio, but this does not affect the w adjustment parameter. This is the result. The normal adjustment of the compressor is only to adjust the speed or return flow, especially the speed, which is the most economical way to control costs.

This post was last edited by Lu Yin Wandering on 2010-5-17 09:54 When the compression ratio of the reciprocating compressor is high, it can be achieved by adjusting the clearance adjustment valve, adjusting one return to one, adjusting the oil discharge valve of each section, and adjusting three returns to one (final return to one section). If the compression ratio is low, it means that there is a problem with the valve or piston ring, and it should be stopped for maintenance when appropriate. If the compression ratio deviates too much from the index, the remaining clearance should be corrected during unit overhaul. The centrifugal compressor is only equipped with a return valve between each stage, and it is basically impossible to adjust between stages. Adjusting the speed will inevitably affect the shaft power, and whether it can meet the design requirements is questionable.