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发明公开
CN105840250A 汽轮发电机组振动保护装置及方法 有权

汽轮发电机组振动保护装置及方法
摘要：
本发明涉及一种汽轮发电机组振动保护装置及方法，通过安装在汽轮发电机组中压转子轴承座上的互成90°的X、Y方向的两个涡流传感器，对中压转子的振动值进行测量，在诊断出中压转子的振动由摩擦故障引起后，在控制中压转子振动的方法可根据振动情况与机组当前的负荷进行综合判断，当机组中压转子X方向振动超过150μm时，机组执行减负荷；当中压转子X方向振动小于70μm时，机组可进行负荷调整。
摘要（英）：

The invention relates to a vibration protecting device and a vibration protecting method of a steam-turbine generator set. Through two eddy-current sensors which are mounted on a bearing block of an intermediate pressure rotor in the steam-turbine generator set, are mutually at an angle of 90 degrees and are located in a direction X and a direction Y, the vibration value of the intermediate pressure rotor is measured, after the vibration of the intermediate pressure rotor is diagnosed to be caused by a friction fault, the comprehensive judgment can be carried out by a method for controlling the vibration of the intermediate pressure rotor according to a vibration condition and the current load of the generator set, when the vibration of the intermediate pressure rotor in the generator set in the direction X exceeds 150 microns, load reduction is carried out by the generator set, when the vibration of the intermediate pressure rotor in the direction X is less than 70 microns, load adjustment can be carried out by the generator set.

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