| 摘要 |
<p>PURPOSE: An underwater nano bubble generating apparatus and an automatic water-feeding apparatus are provided to increase underwater dissolved oxygen by generating nano bubbles with a plurality of pores in a nano size. CONSTITUTION: A nano film(10), a compressed air generating part(20), a filter(30), a static pressure air controlling part(40), and a compressed air introducing part(50) are prepared. A plurality of pores in a nano size is arranged in the nano film, and the nano film is arranged in a water tank. The compressed air generating part generates nano bubbles by passing compressed air through the nano film. The filter filters foreign materials from the compressed air generating part. The static pressure air controlling part controls the pressure of the compressed air.</p> |
