| 摘要 |
PURPOSE:To eliminate the corrosion factor, form the coating by a cleaning water and prevent the welding boundary part of an erosion sealed material from the corrosion by injecting the cleaning water jet flowing to a turbine blade. CONSTITUTION:Nozzles 7a, 7b are provided, especially opposing to the welding boundary part of an erosion sealed material, on both sides of a blade 1 of the last stage of a steam turbine. The pure water having the same property as the supplying water for the turbine or the cleaning water including the annexed ammonia in the pure water is injected and poured as the jet flow from said nozzles 7a, 7b. |
