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一、前言 抽水蓄能电站的水道设计,除在发电工况下应具备常规水电站水道的功能外,还应在抽水工况下—一即水流方向与发电工况相反时,也能满足对水道的要求。也就是说抽水蓄能电站的水道应具有双向水流的功能。 作为发电工况下压力水道的组成部分——进水口和出水口,在抽水工况时就分别成为出水口和进水口,因此可统称为进/出水口。为了讨论方便,宜区分为上池进/出水口和下池进/出水口。也有就按发电工况定名,简称为进水口和出水口的。 抽水蓄能电站的进/出水口在进流时要防止吸气旋涡,在出流时要使水流充分扩散,并使两种工况下的水头损失最小。对同一个建筑物要满足上述要求,在布置上较为复杂。
First, the foreword Pumped-storage power station watercourse design, in addition to power generation conditions should have the conventional hydropower station waterway functions, but also in the pumping conditions - that is, when the water flow direction and power generation conditions opposite, but also to meet the waterway Request. In other words, the pumped-storage power station should have the function of bidirectional flow. As a part of the pressure waterway under power generation conditions, the water inlet and the water outlet are respectively a water outlet and a water inlet when in a pumping working condition, and therefore may be collectively referred to as inlet / outlet. For the convenience of discussion, should be divided into the upper pool into / outlet and lower pool into / out. There are also named by the power generation conditions, referred to as the inlet and outlet. The inlet / outlet of the pumped storage power station should prevent aspiration whirlpool when it enters the inflow, and should fully diffuse the water flow in the outflow and minimize the head loss in both conditions. For the same building to meet the above requirements, the layout is more complicated.