Abstract: Compared with traditional passive vibration reduction, damping vibration control has high stability and superior controllability. It can convert mechanical vibration energy into other energy dissipation which can achieve the purpose of vibration reduction. In order to solve the vibration problem of outlet pipelines of Rich Gas Compressor in a petrochemical company in Shandong. The finite element analysis software ANSYS combined with on-site vibration situation was used to find out the cause of the pipeline vibration. The feasibility of damping vibration control was analyzed by reduction principle. And the SAP2000 was used to simulate the damping vibration control effect in which the further optimize solution was proposed. By using damping vibration control technology, combined with on-site arrangement of pipeline, without stopping the compressor and changing the pipeline structure, the dampers were installed. After the installation, the outlet pipeline vibration was reduced by more than 60% which made the whole system in a safe range of Purdue vibration standard, and the maximum drop is 94.2%. Furthermore the security risk was eliminated and the pipeline system was able to operate safety. Besides, the vibration reduction of the whole platform is over 60% which proved the damping vibration control is beneficial to the stability of chemical equipment platform.

Key words: rich gas compressor, pipeline vibration, damping vibration reduction, simulation analysis

摘要： 和传统被动减振技术相比，阻尼减振具有高稳定性、优越的可控性，机械设备运行过程中的振动能量可转换为其他形式能量耗散，达到减振的目的。本文针对山东某石化公司富气压缩机出口管线振动过大问题，运用ANSYS模态分析并结合现场振动情况分析得到管线振动原因，通过阻尼减振原理分析阻尼减振的可实施性，并利用SAP2000阻尼减振仿真计算提出解决管线振动的最优方案。运用阻尼减振技术，结合现场管线走向情况，在不改变原有框架结构以及不停机的基础上，安装作者专利产品蜂窝型阻尼器。现场安装阻尼器后，富气压缩机出口管线振动幅值符合美国普渡振动标准，阻尼减振降幅达到60%以上，最大降幅达到94.2%，消除了疲劳振动等安全隐患，实现了整个机组的安全运行。此外，框架平台振动降幅达到60%以上，说明阻尼减振有利于化工设备平台的稳定性。

关键词: 富气压缩机, 管道振动, 阻尼减振, 仿真分析