小水电运行中,常遇到泥沙成灾,淤积渠道、降低出力,更主要是导致水轮机发生严重的磨损与气蚀,影响电站的经济效益。如信宜县石印、高州县马贵、良坪、大拜等电站,水轮机的转轮磨损气蚀严重,一个星期要处理一次,一年多就要更换转轮,三年就报废,需更换新机。 Small hydropower operation, often encountered silt disaster, siltation channels, reduce output, but mainly the main cause turbine abrasion and cavitation, affecting the economic benefits of power plants. Such as Shiyin Xinyi County, Gaozhou County, Ma expensive, Liang Ping, such as power station, wheel wear turbine cavitation serious, to be dealt with once a week, more than a year to replace the wheel, three years to scrap, need to be replaced New machines.