OPERATING WHEEL FOR DIRECTLY CONNECTED SILENT UNIT OF DIAGONAL TYPE HYDROTURBINE TYPE APPLICABLE IN THE HYDRODYNAMIC ENERGY-SAVING COOLING TOWER

摘要

1. An impeller for a directly connected low-speed small diagonal-type hydraulic turbine used in a hydrodynamic energy-saving cooling tower, containing an upper rim (1), a lower ring (3) and blades (2) with a curved surface installed between the upper rim (1) and the lower ring (3), and the edge (4) of the water inlet is located at one end of each blade (2) with a curved surface, and each edge (4) of the water inlet is the high pressure side of the impeller and also the side of the radial inflow of the water flow, and the edge ( 5) the water outlet is located at the other end of each blade (2) with a curved surface, and each edge of the water outlet is the low pressure side of the impeller and also the side of the axial outflow of the water flow; wherein the connection points between the water outlet edges (5) and the lower ring (2) are A, the connection points between the water outlet edges (5) and the upper crown are B, characterized in that the ratio of the height h of the water inlet edge (4) of each blade ( 2) to the diameter D1 corresponding to the edge (4) of the water inlet is 0.18-0.22, the ratio of the total height H of the blades (2) to the diameter D1 is 0.35-0.42, the ratio of the diameter D2 corresponding to point A the intersection of each edge (5) of the water outlet and the lower ring (3) to the diameter D1 is 0.4-0.6, the ratio of the diameter D3 corresponding to point B of intersection of each edge (5) of the water outlet and the upper rim to the diameter D1 is 0.3-0.45, the ratio of the diameter D4 in the position of draining the water of the circular platform on the upper rim (1) to the diameter D1 is 0.1-0.2 and the ratio between the diameter D1 and the rotational speed of the cooling fan blades is where D1 is d�