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根据轴系状态参数监测动态汽封间隙 ,根据监测的内效率诊断隔板汽封间隙变化 ,从而决定最佳汽封间隙。合理减少汽封间隙 ,既可以提高汽轮机效率 ,又可增加阻尼比 ,减小过临界转速时的振幅
The dynamic gland clearance is monitored according to the shaft condition parameters, and the change of the diaphragm gland clearance is diagnosed based on the monitored internal efficiency to determine the optimum gland clearance. Reasonably reduce the gland gap, both to improve turbine efficiency, but also increase the damping ratio, reducing the amplitude of the critical speed