Dual Diffuser Aerator for Aquaculture Water Mixing and Oxygenation
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Solution Overview
Problem
Existing aerators for water bodies in aquaculture and shallow ponds are energy-intensive, ineffective in mixing and destratifying water, leading to oxygen deficiency and waste buildup, and fail to achieve maximum oxygenation solubility due to their design.
Innovation Solution
A dual diffuser system aerator with coarse and fine porous diffusers, adjustable air sources, and a baffle plate to generate both large and small bubbles, enhancing mixing and aeration while reducing energy consumption by eliminating the need for high-energy rotators/propellers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electric motor driven rotators/propellers are used for aeration, then aeration function is provided, but energy consumption increases
Solution Approach 1:
The patent replaces the mechanical system (electric motor driven rotators/propellers) with a pneumatic system (compressed air sources). The air sources deliver air through diffusers that create bubbles to aerate water, eliminating the need for high-energy mechanical components while maintaining effective aeration function.
Solution Approach 2:
The patent employs pneumatic principles by using compressed air sources to deliver air through diffusers. The air is forced through porous diffusers at controlled pressures (P1 for coarse-porous, P2 for fine-porous) to generate bubbles of different sizes, creating effective aeration without mechanical moving parts.
2Reliability
If conventional aerators are used, then aeration is provided, but water mixing and destratification effectiveness is insufficient
Solution Approach 1:
The patent segments the aeration system into two distinct diffuser types: coarse-porous diffusers and fine-porous diffusers. The coarse-porous diffusers generate larger bubbles for bulk water movement and destratification, while fine-porous diffusers generate smaller bubbles for fine-aeration and oxygen transfer. This segmentation allows each component to specialize in specific functions, improving overall productivity.
Solution Approach 2:
The patent applies local quality by positioning different diffuser types in specific locations within the water body. Coarse-porous diffusers are placed to target deeper water layers for destratification, while fine-porous diffusers are positioned for surface and mid-water aeration. The baffle plate is strategically positioned to direct water flow patterns, creating localized zones of enhanced mixing and oxygenation where needed.
3Reliability
If prior art aerators are used, then aeration is provided, but dissolved oxygen levels remain inadequate
Solution Approach 1:
The patent changes key parameters of the aeration system: using dual pressure control (P1 for coarse-porous, P2 for fine-porous) to optimize bubble size distribution, adjusting air flow rates to achieve optimal oxygen transfer efficiency, and modifying diffuser pore sizes to create a spectrum of bubble sizes that maximize oxygen dissolution while maintaining effective mixing.
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
The dual diffuser system achieves efficient mixing and aeration, preventing water stagnation, increasing dissolved oxygen levels, and reducing operating costs, thereby supporting aquatic life and improving water quality.
Implementation Method 1
a plurality of coarse-porous diffusers and a plurality of fine-porous diffusers situated between the water inlet section and the water outlet section
Implementation Method 2
The dual diffuser system achieves efficient mixing and aeration, preventing water stagnation, increasing dissolved oxygen levels
Implementation Method 3
efficient mixing, as well as an effective aeration of the water body
Implementation Method 4
a flotation support frame and anchoring members
Data Source
AI summary
An improved aerator for creating gas-enriched water in aquaculture bodies of water, as well as other shallow ponds and lagoons, comprising a dual diffuser system providing for a large bubble water-mixing phase coupled with a small bubble water-aeration phase.