关键词: 撬装往复压缩机, 管线振动, 固有频率, CAESAR Ⅱ

Abstract: The main reason for the vibration of the pipeline of the reciprocating compressor is the pressure pulsation, especially when the natural frequency of the pipeline equal to frequency of stimulate vibration, sympathetic vibration will occur and that will affect the normal operation.The pipeline of skidded reciprocating compressor belong to NO.1 Gas Production Plant of XinJiang Oilfield Company have been vibrated since it was installed.The experimental tests is done to get the vibration data and vibration frequency for the pipe system of the skidded reciprocating compressor.Then the Caesar II model is established to caculate the natural frequency of the piping system and to analyse the reason for the piping vibration.Through change the location and rigidity of the piping support to adjust the natural frequency of piping system, the piping sympathetic vibration is eliminated.After the adjusting, good vibration attenuation effect was achived and hidden troubles to smooth running or the unit eliminated and what presented herein could be referenced in reduceing the pipeline vibration of skidded reciprocating compressor.

Key words: skidded reciprocating compressor, pipeline vibration, natural frequency, CAESAR II