摘要
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。
This paper briefly introduced the experiment study on power generation of Sanmenxia Hydroelectric Station in flood seasons from 1989 to 1994,and pointed out that the main reasons for non-generation in flood seasons before 1989 are the follows: too high sediment content in flood seasons,un-perfect facilities of the station for flood and sediment discharge,inexperienced in reservior operation management,and poor anti-corrosion character of power generating apparatus,and so on. After 6 years flood season power generation experiment and study,the law of water turbine flow passing parts' destroy by corrosion in flood operation has been obtained clearly, the corroded location, characteristics and degrees of different parts have been acknowledged; four anticorrosion materials of the SPHG1 alloy powder sprinkling welding material,GBI Boron rustless steel welding rod, metal ceramics and electroplating anti-corrosion material have been selected from the experiments of 38 materials,and the application has shown perfect results,besides,the best protection plan has been decided,and the most suitable power generation periods and the plan o f regulation of stream flow and sediment regimen have been determined in the reservior optimization operation. Presently Sanmenxia Hydroelectric Station has come up to the demand of three years repairring cycle,not only created great economic benefits,and also provided valuable experience for other stations.
出处
《人民黄河》
北大核心
1995年第12期3-5,共3页
Yellow River
关键词
水电站
水轮发电机组
汛期
发电试验
磨蚀
调度
Anti-corrosion protection
regulation of streamflow and sediment regimen
the best generation period
power generation in flood seasons
Sanmenxia Hydroelectric Station