Erosion damage evaluation device and method for vertical water-turbine generator set

The invention relates to an abrasion damage evaluation device and method for a vertical water-turbine generator set, the device comprises a thrust bearing, a strain gauge used for detecting the abrasion degree of a water turbine is installed on the thrust bearing, in a use state, the thrust bearing is annularly installed on a base, and the strain gauge is electrically connected with a dependent variable measurement system. The whole water turbine is weighed through the strain gauges and the dependent variable measuring system, and the abrasion damage degree is judged online in advance, so that the overhaul period can be reasonably arranged, the available coefficient of power equipment is improved, the maintenance cost is reduced, and the maintenance risk is reduced. 一种立式水轮发电机组磨蚀破坏评估装置及方法，包括推力轴承，推力轴承上安装有用于检测水轮机磨蚀程度的应变片，使用状态下，推力轴承环形安装在底座上，应变片与应变量测量系统电性连接。通过应变片和应变量测量系统对水轮机整体进行称重，在线提前判断磨蚀破坏程度，从而能够合理安排检修周期，提高电力设备可用系数，降低维修成本，减少维修风险。