For hydraulic,electrical and mechanical reasons,pump units will be damaged at run time. Traditional repair methods include maintenance,after the accumulation of damage into the failure of the unit emergency shutdown maintenance. In order to solve the defects of the methods,this paper introduces a set of on-line monitoring system of large pump units based on LabWindows/CVI. This paper briefly introduces the components of this system,the design scheme,the basic function and the theoretical basis. We validate the system in the test rig of the pump rotor system. The system collects signals from normal and parallel misalignment. Then the system analyzes the signal by time domain analysis,frequency domain analysis and rotor orbit analysis. Lastly,we have proved the feasibility of the system.
Key words
LabWindows/CVI /
real-time monitoring /
pump unit
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References
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