China has the most outstanding and serious problem of silt abrasion on hydraulic turbine, especially in the power station on mainstream of Yellow River and the upriver anabranch of Yangtze River. For many years, in order to find the destruction rules of silt to hydraulic turbine, and study how to slow down the destruction speed of sandiness stream to surface on flow parts of hydraulic turbine, various kinds of new technology, new material, new craftwork have been verified in lab and on spot. It is proved that using high velocity oxygen fuel to strengthen the surface on flow parts of hydraulic turbine can effectively prolong the service life of hydroelectric generating set.
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