| 摘要 |
<p>PURPOSE:To enhance a dissolving rate of air by providing a stirring blade so that the leading end thereof protrudes from the opening of a stirring shaft while providing a distribution plate to the stirring blade. CONSTITUTION:The revolution of a submerged motor is directly transmitted to a stirring blade 5 by driving an aeration device and the flow velocity in the vicinity of the stirring blade is increased by the revolution of the stirring blade 5 and, by this mechanism, velocity energy is increased. With the increase of the velocity energy, pressure energy is reduced because potential energy is almost constant to become negative pressure. By this negative pressure, the air supplied to an air passing pipe 7 through a hollow stirring shaft and a submerged motor shaft is sucked and finely divided by the blade to be discharged into water under stirring. The water is also stirred by the blade to perform aeration. By this method, return water flow is prevented and aeration effect can be enhanced.</p> |
