Abstract:There are many types of reciprocating compressor faults,and gas valve faults account for 36% of the total faults.Three common faults of reciprocating compressor valves were studied:valve plate breakage,spring failure,and valve seal face failure.The simulation of the mesh suction valve on the 2D90 reciprocating compressor was carried out.An acceleration sensor was installed on the valve seat,and the time domain waveform and the spectrum energy distribution of the vibration acceleration signal of the valve seat were collected and analyzed,and the corresponding relationship between the fault characteristic signal and the working state of the gas valve was found.It provides reference for the reciprocating compressor valvefault diagnosis.