论文部分内容阅读
从技术及经济观点来看,正确选择法兰西斯水轮机的基本参数是极其重要的。水轮机比转速的选择直接与有效水头有关,水轮机转轮相对于尾水位的安装位置也同样重要,并对水电站安全运行有直接影响。技术的发展及机械制造能力,已能够生产更大型的水轮机组,并更有效地利用能量参数。在法兰西斯水轮机中,采用其他类型水轮机所用的临界比转速,对增大机组体积将有直接的影响。
From a technical and economic point of view, it is extremely important to properly select the basic parameters of the Francis turbine. The specific speed of the turbine is directly related to the effective head. The installation position of the turbine relative to the tail water level is also important, and it has a direct impact on the safe operation of the hydropower station. Technology development and machinery manufacturing capabilities have enabled the production of larger turbines and more efficient use of energy parameters. In Francis turbines, the use of critical speeds for other types of turbines has a direct impact on increasing unit size.