Abstract
Axial vibration is the main accident that affects the normal function of the vertical hydro-generator unit and endangers the use of the unit. There are many reasons for the axial vibration of the unit. This article only analyzes the mechanism of the axial vibration of the thrust bracket of the vertical unit caused by the connection of the thrust head and the mirror plate, and gives a real machine measurement example and treatment measures.
Highlights
The lateral vibration of the guide bearing of the hydrogenerator unit has received enough attention, while the axial vibration of the thrust bracket has not attracted people’s attention
Since the excitation of axial vibration comes from many aspects such as water flow, machinery,elevtromagnetics,etc. [2][3][4][5], it is difficult to determine the excitation parameters quantitatively,and the problem of axial vibration has not yet been satisfactorily resolved.This paper takes a real machine test of a vertical hydro-generator unit as an example, analyzes the mechanism of the axial vibration of the thrust support of the unit caused by the deformation of the insulating backing plate and the mirror plate, and proposes treatment measures, which provide some experience for the fault diagnosis of the unit
3.4 Analysis of test results and inspection Experimental data and by waveform analysis, and exclude the pressure fluctuation generator axis adjusting unit caused by poor axial vibration
Summary
The lateral vibration of the guide bearing of the hydrogenerator unit has received enough attention, while the axial vibration of the thrust bracket has not attracted people’s attention. [2][3][4][5], it is difficult to determine the excitation parameters quantitatively,and the problem of axial vibration has not yet been satisfactorily resolved.This paper takes a real machine test of a vertical hydro-generator unit as an example, analyzes the mechanism of the axial vibration of the thrust support of the unit caused by the deformation of the insulating backing plate and the mirror plate, and proposes treatment measures, which provide some experience for the fault diagnosis of the unit.
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