When the pump ran at high rotational speed, a large hydraulic loss occurred in the volute. 在高速工況下,蝸殼產生較大的水力損失,表明蝸殼尺寸偏小,不能適應高速運行工況,應設計較大尺寸的蝸殼。
It is suggested that the location of the hump section should be close to the intake as much as possible in order to reduce the hydraulic loss. 說明在設計虹吸式出水流道時,在泵站結構布置允許的條件下,駝峰的位置應儘可能向流道進口方向靠近,以減小出水流道的水力損失,提高泵裝置效率。