The failure of the multi-stage centrifugal pump is mostly caused by the unreasonable design of the equipment structure.By analyzing and summarizing the operation faults of TDF type multi-stage centrifugal pump,the main reasons for frequent failures of TDF type multi-stage centrifugal pump equipment are analyzed,among them,the sensitivity and material of the balance disc and the common balance tube of three high pressure boiler feed water pumps are the main reasons that make the pressure control of the balance line difficult,the balance disc wear for a long time and the balance disc instant bite frequently when the high pressure boiler feed water pump starts.This paper puts forward the solution to the problem of transforming the external connection of the balance pipeline into the internal connection,renewing the material and improving the sensitivity of the balance disc,after the transformation,the problem that the balance disc of the TDF type multi-stage centrifugal pump frequently locked in the starting process is solved effectively,and the long-troubled defect is completely eliminated,the stability of high pressure boiler water supply system is ensured.It makes a positive contribution to the smooth operation of the device.
关键词
高压锅炉给水泵/故障分析/故障处理
Key words
high pressure boiler feed water pump/fault analysis/fault handling
维普
万方数据