Analysis and Treatment of Compressor Dry Gas Seal Leakage
During the operation of a chemical plant,a leakage alarm occurred in the dry gas seal system of the compressor,resulting in the decrease of the main seal pressure difference.The failure required urgent treatment,but the unit did not have the conditions for shutdown and maintenance.By analyzing the dry gas seal structure and sealing process,combined with the characteristics of the compressor operating curve,the failure prediction was made,and a plan was formulated to install leakage detection equipment and add a sealing gas to ensure the supply of main sealing gas for the dry gas seal.After the implementation of the improvement measures,the compressor was able to continue to run smoothly for more than 600 days,and eventually operated safely until the planned shutdown for maintenance,avoiding the compressor stop and ensuring the overall smooth operation of the plant.