Abstract: The invention relates to a runner for a direct-connected low-speed small mixed flow type water turbine applied in a hydrodynamic energy-saving cooling tower, which comprises an upper crown (1), a lower ring (3) and curved surface blades (2) mounted between the upper crown (1) and the lower ring (3), and is characterized in that the ratio of the height h of water inlet edge (4) of each blade (2) to the diameter D1 corresponding to the water inlet edge (4) is 0.18-0.22, the ratio of the overall height H of the blades (2) to the diameter D1 is 0.35-0.42, the ratio of the diameter D2 corresponding to the intersection point A of each water outlet edge (4) and the lower ring (3) to the diameter D1 is 0.4-0.6, the ratio of the diameter D3 corresponding to the intersection point B of each water outlet edge (4) and the upper crown to the diameter D1 is 0.3-0.45, the ratio of the diameter D4 in the position of a water drain round platform on the upper crown (1) to the diameter D1 is 0.1-0.

Abstract: The invention relates to a direct-connected low-speed small mixed flow type water turbine applied in a hydrodynamic energy-saving cooling tower, which comprises a water inlet scroll case (1), a seat ring (2) provided with single column of guide vanes annularly, a runner (12), a straight tapered water outlet pipe (9) and a side water outlet box (10), wherein the seat ring (2) is mounted on the inner side of the scroll case (1), a water outlet among the guide vanes in the seat ring (2) is communicated with a water inlet formed among curved surface blades (4), the water outlet formed among the curved surface blades (4) is communicated with the water inlet of the straight tapered water outlet pipe (9), the water outlet of the straight tapered water outlet pipe (9) is communicated with the water inlet of the side water outlet box (10), and the direct-connected low-speed small mixed flow type water turbine is characterized in that a bearing seat (6) is mounted on the runner (12), a shaft (7) is mounted in the beari

Abstract: The invention relates to a runner for a direct-connected low-speed small mixed flow type water turbine applied in a hydrodynamic energy-saving cooling tower, which comprises an upper crown (1), a lower ring (3) and curved surface blades (2) mounted between the upper crown (1) and the lower ring (3), and is characterized in that the ratio of the height h of water inlet edge (4) of each blade (2) to the diameter D1 corresponding to the water inlet edge (4) is 0.18-0.22, the ratio of the overall height H of the blades (2) to the diameter D1 is 0.35-0.42, the ratio of the diameter D2 corresponding to the intersection point A of each water outlet edge (4) and the lower ring (3) to the diameter D1 is 0.4-0.6, the ratio of the diameter D3 corresponding to the intersection point B of each water outlet edge (4) and the upper crown to the diameter D1 is 0.3-0.45, the ratio of the diameter D4 in the position of a water drain round platform on the upper crown (1) to the diameter D1 is 0.1-0.

Abstract: The invention relates to a direct-connected low-speed small mixed flow type water turbine applied in a hydrodynamic energy-saving cooling tower, which comprises a water inlet scroll case (1), a seat ring (2) provided with single column of guide vanes annularly, a runner (12), a straight tapered water outlet pipe (9) and a side water outlet box (10), wherein the seat ring (2) is mounted on the inner side of the scroll case (1), a water outlet among the guide vanes in the seat ring (2) is communicated with a water inlet formed among curved surface blades (4), the water outlet formed among the curved surface blades (4) is communicated with the water inlet of the straight tapered water outlet pipe (9), the water outlet of the straight tapered water outlet pipe (9) is communicated with the water inlet of the side water outlet box (10), and the direct-connected low-speed small mixed flow type water turbine is characterized in that a bearing seat (6) is mounted on the runner (12), a shaft (7) is mounted in the beari