The optimal hydraulic design can effectively improve the outlet flow pattern of suction box to ensure better flow conditions for pump and raise the efficiency of pumping system substantially.

进水流道水力设计优化可有效地改善进水流道出口流态，确保水泵有良好的进水条件，大幅度提高水泵装置效率。

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A throttle valve must be installed along outlet pipeline when the conditions of work are not clear or stable, this can guarantee operation at the design point.

当工作条件不明或不稳定时，出口管路中必须安装节流阀，以保证泵在设计点运行。

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When the QUICK scheme is applied, however, the difference between the results under the two kinds of outlet boundary conditions depends on the outlet boundary position.

对采用QUICK格式的计算，两种出口边界条件的差别与出口界面位置有关。

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