水轮机转轮立式静平衡方法的研究进展

Research Progress of Vertical Static Equilibrium Method of Hydro-turbine Runner

水轮机转轮质量不平衡是水轮机组产生振动的主要原因之一,通过静平衡试验获得转轮不平衡重量和不平衡角度,完成对不平衡点的检测和配重,降低转轮振动幅值和摆动幅值至容许范围。综述了水轮机转轮立式静平衡方法的研究进展,介绍了该静平衡方法的原理及5种不同的静平衡试验方法,分析了这几种静平衡方法的优缺点,并对今后水轮机转轮立式静平衡方法的研究方向给出了一些建议。

The imbalance of the quality of the hydraulic turbine runner is one of the main reasons for the vibration of hydraulic turbine. The static equilibrium experiment is taken to obtain the wheel imbalance weight and angle. Then the detection and the counterweight balance work are completed to achieve the aim of reducing the amplitude of the vibration and the swing to the allowable range. In this paper, the recent efforts in developments of static balance technology of the turbine runner is summarized, the static equilibrium princi- ple and 5 kinds of test techniques are presented. Besides, the advantages and disadvantages of these methods are analyzed. And the fu- ture research direction of the turbine runner static equilibrium experimental methods is prospected.