Diffuser Aerator
Price:Negotiable
Contact Info
- Add:江蘇宜興和橋創(chuàng)業(yè)園, Zip: 214211
- Contact: 吳建剛
- Tel:0510-87876970
- Email:87876970@163.com
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Description
Additional Information
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II. Structure and Oxygenation Principle 1. Structure 1. Serrated air distribution head, similar in structure to Jinshan Type I. Its function is to cut and disperse air. Diameter D = 100 mm, height H = 120 mm, with 18 serrations. 2. Diffuser cover with serrations, designed in an inverted umbrella shape. At the center of the umbrella, there are 12 Φ12 aeration holes, which supplement air and further evenly distribute it across the entire diffuser cover, reducing energy consumption, evenly mixing water and air, and lowering the requirement for installation levelness. The diffuser cover diameter D = 600 mm, with 60 downward-tilted serrations around the perimeter to further cut air bubbles. 2. Oxygenation Principle As mentioned above, the main factors affecting the oxygen transfer rate are: turbulence in the aerated water body, mixing, bubble diameter, air volume, and the partial pressure of oxygen in the liquid phase, etc. The Φ600 diffuser aerator primarily achieves oxygenation through the following mechanisms: 1. Intense mixing of liquids: Gas is delivered through pipes to the aerator, passes through a Φ25 inner hole and the serrated air distribution head, resulting in the first cut of water and gas. After being dispersed by the diffuser cover and cut again by the surrounding serrations, it drives the surrounding static water upward, causing intense gas-liquid mixing due to the energy difference. Additionally, since the aerators are distributed at the bottom of the tank, the rising bubbles and descending water flow create countercurrents, further enhancing gas-liquid mixing and accelerating the renewal of the water film at the gas-liquid interface. 2. After two rounds of serrated cutting and gas-liquid mixing, the bubble diameter decreases, increasing the gas-liquid contact area and facilitating oxygen transfer. 3. Diffusion effect of the diffuser cover: The diffuser cover spreads the concentrated gas stream into a cylindrical shape, altering the air distribution pattern at the bottom of the tank, expanding the distribution area, and intensifying bubble diffusion and gas-liquid mixing at the bottom, which further promotes aeration and oxygenation. The difference between the diffuser aerator and the Jinshan Type I lies in the secondary cutting and dispersion of the airflow, which expands the air distribution range and changes the flow pattern in the tank. Unlike fixed spiral aerators, the device height is significantly reduced, the air distribution range is larger, and the mixing effect at the bottom of the tank is stronger, resulting in better oxygenation performance. |
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