超高压压缩机管线系统的振动控制仿真

Simulation of Superhigh Pressure Compressor Pipeline System Vibration Control

研究石化企业中普遍存在着压缩机及其管线系统振动问题,强烈的振动会使管线及其部件产生疲劳破坏,甚至还会引起泄漏、停机、爆炸等严重事故。为了解决振动故障,提出了现场管线剧烈振动的原因和振动区域,设计了改变系统刚度进行振动控制的方案;同时为解决传统手工建模繁琐的问题,采用ANSYS软件的参数化设计语言(APDL)建立了管线系统的全参数振动分析模型,并依据现场测试数据修正模型,复原振动现场。经测试数据显示系统的振动位移大幅度降低,最大降幅达50%,所有位移值均满足了压缩机振动规范。结果证明,用APDL的振动控制方法解决了建模繁琐的问题,提高了仿真建模效率,并成为解决超高压压缩机管线系统振动控制的一种有效方法。

In petrochemical factory,there was the problem that strong vibration of compressor and pipeline,may cause fatigue damage of pipeline and accessories,even caused leak,shut down,explosions and other serious accidents.In order to solve the problem,a super-high pressure compressor pipeline system of a petrochemical company was analyzed for vibration in this paper,the vibration reason was found and a vibration control program was designed by changing system inflexibility.The ANSYS parametric design language（APDL）was used to build pipeline system vibration analysis models which can be revised by test data and improve the efficiency of simulation modeling.After the implementation of the program,test data showed that the vibration displacement dropped greatly,the biggest up to 50%,and all displacement values meet compressor vibration norms.The result proved that the APDL-based finite element analysis approach was an effective way to control superhigh pressure compressor pipeline system vibration,which solved the problem of hand-modeling inefficiency and improved the efficiency of the simulation modeling.