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Oblique turbine
Oblique turbine
  

    属于冲击式的一种,适用水头:40~300 米,它的射流中心线与转轮的回转平面成22.5°夹角,来自压力管的水,经喷咀转换为高速射流斜向冲击转轮,水流从叶片一侧进入,从另一侧流出而推动转轮旋转做功。斜击式结构简单,运行可靠,检修维护方便。 斜击式水轮机的结构与水斗式水轮机基本相同,只是射流方向有一个倾角,只用于小型机组。理论分析证明,当水斗节圆处的圆周速度约为射流速度的一半时,效率较高。这种水轮机在负荷发生变化时,转轮的进水速度方向不变,加之这类水轮机都用于高水头电站,水头变化相对较小,速度变化不大,因而效率受负荷变化的影响较小,效率曲线比较平缓,上限效率超过91%

 
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