Ulteriorly, considering the local head loss in inlet opening and pipes junction plays more important role in the calculative results of water hammer pressure calculation of the short pipeline system.

考虑进口及多管道连接处的局部水头损失对短管道系统水击压强的计算结果影响较大。

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In order to make optimal operation calculation of small hydroplant more accurate and rational, head loss of hydroelectric plant with complex diversion system is analyzed in this paper.

为了使小型水电站厂内优化运行计算的结果更趋准确、合理，对具有复杂引水系统的小型水电站引水损失情况进行了分析。

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And coefficient of local loss-of-head of the water valve is 2.08. This optimum method is suitable for optimization parameter design of other parts in waterway system.

室内样机试验测得的水阀局部水头损失系数为2.08。该方法适用于水路系统其他部件参数的优化设计。

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