The operation stability of hydroturbine generator is related to the efficiency and economic benefit of hydropower station. When the runner of Francis turbine runs normally, fatigue fracture or crack will occur on the runner blade due to water conservancy factors, which makes maintenance difficult, and the maintenance period is long and the process is tedious. Therefore, the failure of turbine runner blade has a very profound impact on the operation of generator set.
The operation stability of hydroturbine generator is related to the efficiency and economic benefit of hydropower station. When the runner of Francis turbine runs normally, fatigue fracture or crack will occur on the runner blade due to water conservancy factors, which makes maintenance difficult, and the maintenance period is long and the process is tedious. Therefore, the failure of turbine runner blade has a very profound impact on the operation of generator set.
At present, there are two main problems in the use of turbine runner, one is the erosion of sediment, the other is the cavitation of water flow, resulting in the runner parts after a cycle of use, there is a large erosion, defect, if the surface does not do wear-resistant corrosion coating, the service life of turbine runner is greatly reduced.
Our company in the water turbine runner surface protection, with professional coating technology and construction scheme. Our company adopts the latest generation of HVOF equipment and special tungsten carbide ceramic material to spray and protect the flow parts of the hydropower station, which can not only improve the wear resistance of the flow parts of the turbine, but also resist the cavitation of the runner by the water flow.
