| 摘要 |
The present invention relates to an underwater aeration device which discharges water via an expanded pipe connected to an inducing pipe and a discharging pipe by inducing water flow with a pump installed on the end of the inducing pipe; and which discharges water with air by connecting an air sucking pipe which sends external air to the discharging pipe. A compressive pipe of which the cross sectional area becomes narrow to a discharging end is formed on the end of the expanded pipe, and the underwater aeration device where the inducing pipe having a predetermined diameter is formed on the end of the compressive pipe so that the present invention enables the aeration in a wide range by increasing a discharging distance of the water discharged via the discharging pipe by increasing the speed of a water current and improves the efficiency of the aeration by increasing a sucked amount of air. |
