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hydropower station unit
相关语句
  水电站机组
     Methods of Small Hydropower Station Unit Capacity Enlargement and Reform in Rural Areas
     农村小水电站机组增容改造的方法
短句来源
     THE STUDY OF STOCHASTIC CAULATING MODEL IN FATIGUE FAILURE OF METAL MATEIAL OF HYDROPOWER STATION UNIT
     水电站机组系统金属构件疲劳破坏随机预测模型
短句来源
  “hydropower station unit”译为未确定词的双语例句
     Research on Operation Stability and Runner Dynamic Stress of Dachaoshan Hydropower Station Unit 6
     大朝山水电站6号机组运行稳定性与转轮动应力研究
短句来源
     At Xiluodu hydropower station , unit rated power is 700MW , maximum power is 770MW, 18 units are arranged in two underground powerhouses in left and right banks , each includes 9 units , maximum head is 230m with variation 75m .
     溪洛渡水电站单机额定功率700 MW,最大功率770 MW,机组共18台(左右岸地下厂房各9台),水轮机最大水头230 m,水头变幅75 m。
短句来源
     The hydrogenerator vibrated greatly in the early stage of commissioning at Daxia Hydropower Station, Unit 1, 2, especially the serious over-standard upper throw threatened the safe and stable operation of unit.
     大峡水电站 1号机组和 2号机组投产初期发电机振动很大 ,特别是上导摆度严重超标 ,威胁着机组的安全稳定运行。
短句来源
  相似匹配句对
     The Station
     人生的车站
短句来源
     The Station
     车站
短句来源
     General Arrangement of Gongboxia Hydropower Station
     公伯峡水电站工程枢纽总布置
短句来源
     Electric Design of Xiaowan Hydropower Station
     小湾水电站电气设计
短句来源
     Selection of Unit for for Azhu Hydropower Station
     阿珠水电站机组机型选择
短句来源
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The thesis applies the studied result that the fatigue failure of metal material of hydropower station unit is stochastic, to make the probabilistic and grey caculating models of fatigue failure of metal material. Moreover, it proves experimentally that both of these models have good precision and have a certain theoretic significance and value of application.

在分析水电站机组系统金属构件疲劳破坏具有随机性的基础上,建立了金属材料疲劳破坏的概率预测模型和灰色预测模型,并通过实例验证,两种预测模型都有较好的精度.

In the article,the author introduced the transform work to improve the capacity of Dongjin Hydropower Station units,and analyzed the feasibility in technology,the transform item and economic benefits,it solved the difficult problem that the units cannot operate normally with normal rated power at high head.

介绍了东津电站机组增容改造工作 ,分析了机组增容改造的技术可行性、改造项目、经济效益 ,从而也可解决机组在高水头下带额定负荷时无法正常运行的难题。

The paper presents how to solve the caviation problem of Mantingxing Hydropower Station.Firstly,the cavitation position and area in the former runner is determined by 3 D flow field simulation based on CFD,and is found to match exactly with observed erosion area on damaged runner;Then the influence of main geometry parameters(such as blade lean,blade outlet angle and closing angle)on runner's cavitation property is examined in detail.Based on above analysis,A new runner with uniform pressure distribution...

The paper presents how to solve the caviation problem of Mantingxing Hydropower Station.Firstly,the cavitation position and area in the former runner is determined by 3 D flow field simulation based on CFD,and is found to match exactly with observed erosion area on damaged runner;Then the influence of main geometry parameters(such as blade lean,blade outlet angle and closing angle)on runner's cavitation property is examined in detail.Based on above analysis,A new runner with uniform pressure distribution and small low pressure area is optimized,which gets higher efficiency and better anit cavitation properties but keeps output unchanged.The two new designed runners(with same size and shape)were assembled in Mantingxing Hydropower Station(unit No.1 and No.2) in December 1999,after 4000 hours running,no cavitation appears in No.1,3 blades in No.2 appears very small cavitation area.hentheinfluenceofmainge

本文从改善满天星电站转轮严重空蚀破坏出发 ,以转轮内部三维粘性流动分析为基础 ,首先分析了满天星电站原转轮 (HLD46)内部的压力分布规律 ,分析计算显示的空蚀发生部位及其强度与转轮实际运行中的破坏情况非常吻合。在此基础上 ,分析了转轮主要的几何参数 (叶片倾角、叶片包角及型线等 )对水轮机翼型空蚀的影响 ,通过多方案的设计和流动分析的多次比较优化 ,获得改善满天星电站空蚀性能为目的的新型抗空蚀转轮。优化设计后的新型转轮压力最低部位非常靠近叶片出水边 ,低压区面积大大减少 ,并且基本上没有改变原转轮的出力性能 ,从而获得制造厂和满天星电站的认可。新转轮于 1 999年底投入运行 ,经过40 0 0多小时运行后 1 #转轮没有发生空蚀现象 ,2 #转轮仅在几个叶片发现有轻微空蚀 ,表明改型优化设计是非常成功的

 
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