| 摘要 |
<p>PURPOSE:To provide an aeration water turbine opening toward an impeller and aerating efficiently without the supply of electric power by disposing the impeller on a flow path between two water areas with head and forming an air supply tube opening toward the impeller on the upstream side of the impeller. CONSTITUTION:In an aeration water turbine device 4, water in a high level area is flowed down to a low level area through a flow path 3a because of the head difference to affect a blade 10 of an impeller 5 interposed on the flow path 3a and rotate the impeller 5. On the other hand, pressure in the vicinity of downward stream side of an opening 12a of an air supply tube 12 positioned in the flow on the flow path 3a is negative, and air is sucked through the air supply tube 12. Also the pressure in the vicinity of a rotating shaft 6 is lowered by the rotation of an agitating impeller 11 to accelerate the self- supply of air. Sucked air is agitated, sheared and extruded on the outer peripheral side by the agitating impeller 11, and further air is agitated and sheared by an impeller 10 to form very fine foams, and the very fine foams are diffused in the swirl flow to aerate the water in the low level water area.</p> |
