| 摘要 |
<p>PURPOSE:To make the structure of an oxygen supplying apparatus simple and suppress maintenance cost low by whirling a rotary shaft on which a stainless steel is coiled spirally in water at high speed so as to cause a rotating whirl and send air. CONSTITUTION:Water is stirred with a spring stirrer so as to cause a whirl and at the same time to allow air to invade into a low pressure part in the center part together with water movement, and air is evolved into water as a large number of fine bubbles through the tip of the spring as well as from parts and oxygen is dissolved in water by the contact of air with water. The contact surface area is considered to be quantitatively high because of fine bubbles. Further, advantageously organic miscellaneous matters in water are concentrated in one spot. The apparatus is of great advantage to transportation of live fish, fish cultivation ponds, water tanks on the roof tops of buildings, living fish tanks, wastewater purification ponds, etc., for water purification and activation.</p> |
