Abstract: Aiming at the vibration problem of the outlet pipeline of super high pressure compressor, the application of damping technology in pipeline vibration reduction was studied. Combined with the vibration of the firstgrade outlet pipe of a super high pressure compressor in a chemical plant, the modal analysis was carried out by using ANSYS finite element software, and the main reason of pipeline vibration was determined by combining the vibration of the site pipeline. SAP2000 software was used to simulate the vibration reduction of the damping. The effect of the number and location of dampers on the vibration reduction of pipelines was discussed, and a feasible installation scheme was formulated. The results indicate that the vibration energy of the outlet pipeline of the super high pressure compressor can be absorbed mostly by installing two viscous dampers at the maximum vibration position of the pipeline without changing the original structure of the pipeline and shutting down the compressor. At the same time, the vibration speed and amplitude of pipelines are reduced by more than 70%, and the vibration of adjacent pipelines will not be caused.
Key words: super high pressure compressor; pulsating shock; pipe vibration; damper