Steam supplementing system for preventing water erosion of turbine blades under deep peak regulation and application

The invention discloses a steam supplementing system for preventing water erosion of turbine blades under deep peak regulation, and belongs to the technical field of turbines. A final-stage stationary blade is changed into a hollow steam supplementing blade, a set of system for supplementing steam to the blade is added, related parameters are combined, steam with specific temperature, pressure and flow is supplemented to a steam turbine through the final-stage stationary blade, the steam is used for heating the steam flowing through the final-stage stationary blade, the humidity of the steam entering a final-stage movable blade is reduced, and meanwhile the steam flow of the final-stage blade is increased; therefore, the aim of preventing water erosion of the steam inlet side blade top and the steam outlet side blade root of the last-stage moving blade of the steam turbine is achieved. 本发明公开了一种深度调峰下防止汽轮机叶片水蚀的补汽系统，属于汽轮机技术领域。将末级静叶改为空心补汽叶片，并增加一套向该叶片补汽的系统，结合相关参数，将特定温度、压力和流量的蒸汽通过末级静叶向汽轮机补汽，用于加热流经末级静叶的蒸汽，降低蒸汽进入末级动叶