Study on Vibration Tracing and Vibration Reduction Technology of Reciprocating Compressor Pipeline

摘要

Reciprocating compressor is the core equipment for storing natural gas in gas storage. The abnormal vibration of pipeline will lead to fatigue fracture of pipeline, loose and broken connecting parts, and even lead to leakage of high temperature and high pressure, flammable and explosive gas, causing fire in gas storage, and major accidents such as explosions. In this paper, the first-level outlet safety valve pipe with abnormal vibration of a gas storage reciprocating compressor is taken as an example. Through theoretical and experimental exploration, the vibration source tracing and vibration reduction technology of reciprocating compressor are studied. Based on the finite element analysis of the cause of vibration anomaly, the double-dynamic vibration absorber with vibration reduction is designed based on the fixed-point theory. After installing the vibration absorber, the finite element analysis results reduce the pipe vibration from 16.9 μm to 11.7 μm. Finally, the vibration reduction effect of the vibration absorber is verified by finite element analysis and field test, which provides certain guidance for pipeline vibration reduction.