工业水泵振动异常分析和处理

Analysis and treatment of abnormal vibration of industrial water pump

某燃机电站工业水系统经过多次检修均无法彻底解决水泵振动问题,在对设备本身进行逐步排查后,从系统方面考虑水泵振动原因,通过分析,工频泵流量、扬程裕量过大,不适应目前流量瞬时变化大的工况,是导致振动的主要原因。提出了对工频泵叶轮进行切削以降低出口压力和流量的措施,改造后水泵振动符合标准要求且工频泵电流减小,达到了节能的目的。

The vibration of an industrial water system pump in a power station within gas turbines can not be completely solved after repeated maintenance.After malfunction elimination step by step,the cause of the pump vibration is considered to be the system.Through analysis,the power frequency pump flow and the abundance for the head is oversize,which is not suitable for the soaring of instantaneous flow.It is the main cause of the vibration.The measure of cutting blade disks of power frequency pumps is taken to reduce the outlet pressure and flow.After the transformation,the pump vibration meets the standard requirements and the power frequency pump current decreases,which achieves the purpose of energy saving.