| 摘要 |
<p>PURPOSE:To raise the dissolution effect of air by providing an air dissolution mechanism and by supplying automatically a fixed proportion of air by a liquid pump with an automatic air intake valve. CONSTITUTION:Polluted water is circulated by the liquid pump 1 with the intake 2 and the discharge port 3. The pump 1 is fitted with a path leading to a discharge pressure inlet, a gas inlet and a gas outlet and automatic air intake valve 4 with a piston valve to open or close the path with the aid of the liquid inlet pressure of the intake 2. The discharge pressure inlet of the valve 4 is connected to the discharge port 3 of the pump 1, and also the outlet of the valve 4 is connected to the intake 2 side of the pump 1 to form the automatic air mixing mechanism A. Then, the inside bottom of the aeration tank is provided with the circular liquid path 23 connected to the discharge port of the liquid pump, the exhaust nozzle 25 provided in the wall of the path 23, and air dissolution mechanism B with the through hole 22 for suction, cnnected to the intake of the pump. And, vapor and liquid are mixed under a pressure by a water suction pipe air intake method.</p> |
