中小型水电站引水隧洞(管道)直径初选的探讨

Discussion on Diameter Scheme Choice of Diversion Tunnel or Pipelines in Middle and Small Scale Hydropower Stations

在进行中、小型水电站设计时,估算引水隧洞(管道)直径是设计者必做的工作,根据引水隧道直径与水头损失的函数关系和工程实践,推导出引水式水电站引水隧洞或管道直径的计算公式,采用本文的公式计算隧洞(管道)直径可减少通过技术经济比较的工作量。

It is a necessary work for designers to estimate the size of diversion tunnel or pipelines quickly when designing middle and small scale hydropower stations. The calculation fomula of diversion tunnel or pipelines in diversion-type hy- dropower stations were derived according to the engineering practices and the function relationship between diameter of diversion tunnel and head loss. We can get the results of tunnel or pipelines diameter by one calculation with the formu- lae derived in this thesis, thereby the techno-economic comparison workload will be reduced.