| 摘要 |
PURPOSE: An aerator for deep aeration is provided to prevent contamination of water collected in a marine farming area, dam, river or a sewage disposal plant etc by producing fresh air, and to minimize maintenance costs of the aerator. CONSTITUTION: An aerator for deep aeration includes an opening and closing valve opened and closed corresponding to a first and a second water tanks(10,20) and a buoy floating by the water amount supplied to the water tank. The opening and closing valve controls floating of the buoy and easily fills the tank with fresh air and water produced by correct operation and smooth operation. |
