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卢氏县火炎电站为径流式电站,位于黄河一级支流洛河上游,装机容量4,100千瓦,向独立电网供电。由于长期低负荷运行和水流中泥沙含量大等因素,使水轮机的前、后盖板和转轮等部位汽蚀磨损比较严重,特别是前盖板的破坏更为严重。通过在前盖板盆形腔内加肋筋和加装导流环以及采用环氧金刚砂涂层等综合处理措施后,取得了较好的效果。现将其破坏情况、原因分析和处理措施介绍如下。
Lushi County Fire Power Station is a run-of-river power station located in the upper reaches of the Luo River, a tributary of the Yellow River, with an installed capacity of 4,100 kilowatts, supplying power to an independent power grid. Due to the long-term low-load operation and large sediment content in the water flow, the cavitation erosion of the front and rear covers and the runner of the turbine is serious, especially the damage of the front cover is more serious. Through the front cover plate cavity with ribs and the installation of diversion ring and the use of epoxy diamond coating and other comprehensive treatment measures, and achieved good results. Now its destruction, the reasons for analysis and treatment are described below.