In response to the problem of high vibration in the reciprocating compressor piping system of the Sinopec-SK coker gasoline hydrogenation unit after its process modification,an investigation was carried out,after analyzing the pipe support arrangement and adding rigid fixed support,it was confirmed that the fundamental reason was that the gas frequency coincided with the natural frequency of the pipe.In order to avoid the resonance frequency,on the one hand,the gas frequency was adjusted by controlling the operating interval of the unit,on the other hand,the natural frequency of the piping system was changed by replacing the original rigid pipe support with a damper.After transformation,the vibration of the pipeline decreased to a reasonable range,and the transformation was successful.
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