| 摘要 |
<p>Device for introducing gas or a gaseous mixture in a liquid, usable particularly for the diffusion of oxygen or a gas mixture containing oxygen in a housing wherein water is subjected to an aerobic treatment. The device is comprised of a perforated tube surrounded by a flexible deformable sleeve which is also perforated, is characterized in that the perforations present an inlet orifice (3) of which the passage cross-section (D) is important and such that it reduces to a minimum the charge loss caused by the gas or gas mixture passage through the orifice, the latter being connected to an outlet orifice (4) of which the passage cross-section (d) is reduced so as to achieve the diffusion of gas or gas mixture in the form of fine bubbles.</p> |
