| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an air diffuser which can structurally suppress a choke of a piping system, clean the piping system by a simple operation and uniformly diffuse the air as dispersion of small diametrical air bubbles. SOLUTION: There are provided a main piping 6 which basic end is connected to a blower 8 and which is dipped in a trough and arranged in the horizontal direction, a plurality of branch pipings 7 which ends have each an opening located at the under-part of the main piping 6 and being connected to the main piping 6, an air diffusing drain pipe 9 which one end is connected to the tip part of the main piping 6 and which another end has an opening at the position of the upper part of the main piping 6 as an exhaust port 11, and there are provided a drain valve 12 equipped with the air diffusing drain pipe 9, an opening port 10a at the end part of each branch piping 7 and a plurality of air blowing outlets 10b at the upper surface each having smaller diameter than those of the opening ports 10a provided at the end part of the branch piping.</p> |
