Water guiding mechanism and using method thereof and water pump water turbine unit comprising water guiding mechanism

The invention discloses a water guiding mechanism and a using method thereof and a water pump water turbine unit comprising the water guiding mechanism. The water guiding mechanism is characterized by comprising a volute, a rotating wheel, a fixed guide vane set and a movable guide vane set, wherein the rotating wheel is positioned in the middle of the volute; the movable guide vane set is arranged in the volute and is distributed along the periphery of the rotating wheel; the fixed guide vane set is arranged in the volute and is distributed along the periphery of the movable guide vane set; a round column is arranged between every two adjacent movable guide vanes of the movable guide vane set, wherein a round column can perform synchronous lifting and falling movement between a top cover and a bottom ring so as to enable the movable guide vane set to have an initial angle during opening. According to the water guiding mechanism and the using method thereof and the water pump water turbine unit comprising the