Air Diffuser With Slanted Holes For Oxygen Solubility
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Solution Overview
Problem
Existing air diffusers in wastewater treatment facilities and similar settings are inefficient in supplying oxygen and other gases to water with minimal energy consumption, leading to suboptimal oxygen solubility and gas distribution.
Innovation Solution
The air diffuser design includes a bottom panel and an air diffusion body with air diffusion holes arranged in a specific width range (10 mm to 120 mm) to efficiently discharge gas into water, enhancing oxygen solubility and gas distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If gas is fed into water through conventional air diffusion holes, then oxygen is supplied to water, but energy consumption increases and oxygen solubility efficiency decreases
Solution Approach 1:
The patent changes the physical parameters of the air diffusion system by controlling the width of the air diffusion region to be 10 mm to 120 mm, and by adjusting the inclination angle of the slanted portions to between 10 to 70 degrees. These parameter optimizations create conditions for efficient bubble formation and distribution, achieving high oxygen solubility while reducing energy consumption of the blower.
Solution Approach 2:
The patent introduces a three-dimensional bubble formation mechanism by creating slanted portions that guide air to form bubbles at inclined surfaces rather than simple horizontal holes. This dimensional change in bubble formation geometry improves oxygen transfer efficiency and reduces energy requirements.
2Productivity
If air diffusion holes are arranged with specific width constraints, then gas distribution efficiency improves, but device design complexity increases
Solution Approach 1:
The patent establishes specific parameter ranges for the air diffusion region width (10-120 mm) and slant inclination angles (10-70 degrees). These defined parameters optimize gas distribution efficiency while providing clear manufacturing guidelines, balancing performance improvement with design simplicity.
3Productivity
If air bubbles are discharged with optimized flow speed, then oxygen transfer efficiency increases, but control difficulty increases
Solution Approach 1:
The patent incorporates slanted portions in the air diffusion body that pre-condition the air flow before bubble formation. This preliminary structural arrangement naturally guides air to form bubbles at optimal angles and velocities, achieving efficient oxygen transfer without requiring complex real-time flow control mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design achieves improved oxygen solubility and efficient gas distribution by reducing air bubble diameter, increasing the distribution range of air bubbles, and optimizing the flow speed of water and air bubbles, thereby reducing energy consumption.
Implementation Method 1
The air A is made contact with the water W to dissolve oxygen into the water W
Implementation Method 2
The air A fed into the main body 2a through the air guiding pipe 3 is discharged as air bubbles to the water W through the air diffusion holes 2b
Implementation Method 3
the water W filled in the tank 1 is agitated by motion of the air bubbles so that the dissolved oxygen is globally supplied in the tank 1
Data Source
AI summary
An air diffuser includes: a bottom panel provided in a horizontal direction in a tank in which water is filled; an air diffusion body installed to cover the bottom panel from above; and air diffusion holes arranged to penetrate through the air diffusion body, gas fed to a gap between the bottom panel and the air diffusion body is discharged into water through the air diffusion holes, and an air diffusion region of the air diffusion body where the air diffusion holes are arranged has a width equal to or larger than 10 mm and smaller than 120 mm. A method of treating water using the air diffuser includes supplying air to the air diffuser at a volume of equal to or smaller than 60 [Nm3/(m2·hr)].