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对三门峡水电站1989~1994年汛期浑水发电试验研究情况作了概括性介绍。文章指出,1989年以前三门峡水电站汛期不能发电主要是由于汛期含沙量高、电站泄流排沙设施还不完善、水库管理运用经验不足以及发电设备抗磨蚀性能差等原因造成的。通过6年汛期浑水发电试验研究,摸清了水轮机过流部件在汛期运用条件下的磨蚀破坏规律,掌握了各部位的破坏面积、特征和强度;在38种试验材料中筛选出了SPHG_1合金粉末喷焊材料、GB_1焊条、金属陶瓷和电镀材料等4种抗磨蚀材料,同时还优选出了最佳防护方案;在水库优化调度和调水调沙运用中,选择出了最佳发电时段和调水调沙方案、目前,三门峡水电站机组已初步达到三年大修周期的基本要求,不仅创造了巨大的经济效益.而且还为其它电站提供了宝贵经验。
The paper summarizes the experimental research on turbid water power generation of Sanmenxia Hydropower Station from 1989 to 1994 in flood season. The article points out that before 1989 Sanmenxia Hydropower Station can not generate electricity in flood season is mainly due to high sediment concentration in flood season, power station discharge sediment discharge facilities are not perfect, lack of experience in reservoir management and power generation equipment, abrasion resistance caused by poor performance. Through six years of floodwater turbines power generation test study, find out the rules of abrasion and failure under the condition of flood season and find out the destruction area, characteristics and strength of each part; SPHG_1 alloy was screened from 38 kinds of test materials Powder spray welding material, GB_1 welding rod, cermet and electroplating materials, and other four kinds of anti-erosion materials, and also optimized the best protection scheme; in the reservoir optimal scheduling and water and sediment use, choose the best power generation period and Water and sediment regimen, at present, Sanmenxia hydropower units have initially reached the basic requirements of three years overhaul cycle, not only created a huge economic benefits. But also provided valuable experience for other power stations.