Research on Common Faults of Chemical Centrifugal Pump Based on Fault Tree Analysis Method
The structure of chemical centrifugal pumps is complex,and the working environment is harsh.When there are weak faults or faults are not detected,predicted,and diagnosed in a timely manner,it will seriously affect equipment and production safety.For common faults of chemical centrifugal pump,based on fault types summarized from maintenance records of Changqing Petrochemical Company,the fault tree analysis principle was used to establish a fault tree for centrifugal pumps.The probability of fault occurrence and the importance ranking of each bottom event were obtained through qualitative and quantitative analysis,and the reliability of components and systems was estimated.Based on the calculated reliability,fault prediagnosis of centrifugal pumps can be carried out,and daily maintenance plans can be clarified.