Vibration Analysis Of Domestic 600MW Super-crititial Steam Turbo-set

In recent years,with the development of the power units toward high-capacity and high parameters,the danger of accidents is increasing,in which case more demand of technology of condition monitoring and fault diagnosis is needed.The result of diagnosis was asked for more accurate and reliable,and the prerequisite to ensure the result reliable is the study of the vibration characteristics in-depth.The paper adopted the advanced vibration monitoring and fault diagnosis system,and make the real-time acquisition and detailed analysis to the vibration signal in the entire process of trial operation according to the two new 600MW supercritical unit in trial operation in the process of vibration.The paper analyse the vibration signal with the use of several signal processing technology with the combination of unit operating parameters of the vibration and its influnce to the vibration,and also analyse the reason for the unstable vibration of the unit and the fault for the unit.In the end,the paper summed up the vibration characteristics of the various stages and make a brief assessment of installation crew and production technology.