杜童水电站进水口水头损失试验研究

发布时间：2018-01-16 00:18

本文关键词：杜童水电站进水口水头损失试验研究　出处：《水电能源科学》2016年02期 　论文类型：期刊论文

【摘要】：针对杜童水电站进水口水头损失过大导致电站出力不足的问题,基于重力相似准则,建立了1∶50的试验模型,分别对不同墩头形状和不同前室长度进行了模型试验。结果表明,尖圆型墩头的水头损失较原矩形修圆墩头平均降低了8.63%,说明尖圆型墩头能更好地平稳水流,但水头损失依然过大;将水电站前室部分延长20m后,与未延长前相比,水头损失平均降低了47.57%,说明该水电站原设计为减小工程量,过分缩短了前室长度,导致水头损失过大,为类似工程提供了借鉴。
[Abstract]:Based on gravity similarity criterion , a 1 : 50 test model is established for the problem of insufficient power output due to excessive water head loss in Dutong Hydropower Station . The results show that the water head loss of the toe circular pier head is reduced by 8.63 % than that of the original rectangular pier head . The average loss of water head is reduced by 47.57 % compared with that of the original rectangular pier head . The original design of the hydropower station is reduced by 47.57 % , which indicates that the original design of the hydropower station is reduced , which leads to excessive water loss and provides reference for similar projects .

【作者单位】：河北农业大学城乡建设学院;河北省水利技术试验推广中心;河北省水利水电第二勘测设计研究院;
【分类号】：TV732.1;TV135
【正文快照】： 1工程概况杜童水电站位于鹿泉市境内,是一座季节性发电的径流式电站,电站总装机容量N为3×1 250kW,总设计流量Q总为75.33 m3/s,单机机组设计水头6.4m,设计流量Q设为25.11m3/s,采用轴伸贯流式水轮发电机组;设计年发电量为645×104kW·h,主要供给鹿泉市生产生活用电。该电站前池

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