| 1. | Technological guide for assembly and welding of metal spiral case of turbine
水轮机金属蜗壳安装焊接.工艺导则 |
| 2. | Three - dimensional nonlinear analysis of complete bearing spiral case without cushion
完全联合承载蜗壳三维非线性分析 |
| 3. | Influence of changing temperature on reinforcing bars of spiral casing structure in a hydropower station
温度变化对水电站蜗壳结构配筋的影响 |
| 4. | According to the results of analysis , the shape of the spiral case and stay vanes were improved to reduce the hydraulic losses
根据解析结果，对涡壳和固定导叶进行了改进以减少水力损失。 |
| 5. | This paper deals with a lump - sum flow analysis of a spiral case , stay ring and vaneless annular walls for a small francis turbine by the latest cfd code
本文对常用的小型混流式水轮机涡壳、座环和无导叶环壁面内流动状况用最新的cfd技术进行了整体数值解析。 |
| 6. | The cutting method , installation and welding technique of the expansion joint of spiral case of no . 5 generating unit of long - tan hydropower station have gained good effectiveness , which can be used for reference for the similar generating unit
龙滩水电站安装完毕的5号机蜗壳凑合节的下料方法、安装与焊接工艺都取得了良好的效果，对同类机组会有一定的借鉴作用。 |
| 7. | In order to ensure the material quality and welding quality of expansion joint of spiral case , and the safety and reliability of hoisting equipment , the practical , scientific and reasonable installation technique is key and essential
摘要为了保证蜗壳凑合节瓦片的下料质量、吊装设备安全可靠和焊接质量，切实可行和科学合理的安装工艺将是极其关键的一项工作内容。 |
| 8. | The optimized model , in which water turbine is decomposed and placed along the spiral case ( placed at the nozzles for pelton turbine ) , is proposed in this paper . transient calculation for two projects showed that the proposed optimized model are reasonable and effective
本文从理论分析入手，根据轴流式机组和冲击式机组的特点，提出把水轮机分解成多个水轮机，并把它们放置在蜗壳沿线(喷嘴处?对于冲击式机组)的优化方案，以减少用现有模型计算带来的偏差。 |
| 9. | The transient cfd simulation including the spiral case , stay vane , guide vane , runner vane and draft tube at different operation points is studied fitly , then the result of the pressure distribution on runner blade is provided for the runner transient structural simulation by fluid - structure interaction ( fsi ) method
文中首先对高水头小负荷的涡带工况下混流式水轮机内流场进行非定常cfd计算，得到涡带工况下叶片表面不同时刻的水压力载荷，并利用流固耦合方法对转轮进行结构场瞬态特性计算，分析转轮叶片的动应力特性。 |
| 10. | During past year , 28 times of measurements for two units of b plant of zhelin hydropower station were made , the states of pressure pulsation in the draft cone tube , head cover and spiral case of units were acquired under different water heads , and the influences of that on safety and stability of units operations were also acquired
摘要在长达一年多的时间里，对柘林水电厂b厂两台机组进行了28台次试验，全面掌握了机组各水头下尾水锥管、顶盖和涡壳中的压力脉动情况，以及对机组安全稳定运行的影响。 |
