Analysis and Treatment of Gas Pulsation in the Pipeline of a Hydrogen Diaphragm Compressor

Based on the plane wave theory and the transfer matrix method, the modeling, calculation and analysis of gas pulsation in a complex pipeline system of a hydrogen diaphragm compressor were carried out. The calculations show that the gas pulsations of the intake and exhaust pipelines of the cylinder gradually attenuate along the pipeline upstream and downstream, and the gas pulsation of the exhaust pipeline of the second stage cylinder is larger. The gas pulsations of the exhaust pipelines of the first and second stage cylinders are significantly higher than the limit values of API 618. From the perspective of pulsation control, an attempt was made to add orifice plates at appropriate positions of the pipeline to reduce the pulsation amplitude. The trial calculations show that the added orifice plate can effectively reduce the maximum gas pulsation of the pipeline, and can provide a useful reference for the treatment of gas pulsation.