| 摘要 |
<p>PURPOSE: To uniformly perform air supply/feeding by executing the air supply and feeding to a specified nozzle mounted on a buoy freely movably installed on a water tank for cultivation. CONSTITUTION: The water tank for cultivation is provided with a freely movable buoy 100 such as a boat, and a 1st nozzle 104 the opening part of which is positioned under the surface of water is mounted on the buoy 100, a 2nd nozzle 106 is positioned inside the 1st nozzle, and suction force is generated at the 2nd nozzle by negative pressure generated inside the 1st nozzle. Further, the buoy is provided with a pump 109 for feeding liquid-state material to the 1st nozzle with pressure and a feeding part 116 connected through a supply pipe 120 to the 2nd nozzle. Any suitable orbit is drawn on the buoy and a miniaturized driving source uniformly performs air supply and feeding.</p> |
