由于往复式压缩机的固有特性,管路压力脉动客观存在,但不是一定会因此产生剧烈管道振动.以M型四级六列压缩机为例,从缓冲罐容积和系统共振两个方面进行振动分析.利用有限元分析软件ANSYS对管道系统进行结构模态分析,对比于现场振动测量值,确定管道振动原因.最后,通过支撑加固的方式,有效解决管路振动问题,同时提出油水分离器结构改进方案.%Because of the inherent characteristics of reciprocating compressors, pressure fluctuation in pipelines exists objectively. But it will not cause violent pipeline vibration necessarily. This study focused on the pipeline vibration in an M-type reciprocating compressor and analyzed the cause of vibration in the aspects of the buffer tank volume and resonance of the system. The structural modals of the pipeline system were calculated by finite element analysis software. Based on the comparison between field vibration measurement results and computation results, the pipeline vibration cause of the reciprocating compressor was found and the problem was solved by support reinforcement. Meanwhile, the improvement design of the water-oil separator structure was proposed.
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