Agitation Device With Openings for Fine Bubble Generation
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Solution Overview
Problem
Existing agitation devices struggle to efficiently generate fine bubbles for gas-liquid reactions, particularly at low fuel flow rates, using plate-shaped agitation blades.
Innovation Solution
The agitation device features a disk-shaped agitation member with multiple openings to shear liquid and gas, driven by a motor to generate fine bubbles efficiently, even at low flow rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a plate-shaped agitation blade is used to reduce bubble size, then bubbles can be reduced in size, but fine bubbles cannot be generated efficiently
Solution Approach 1:
The agitation blade is segmented into multiple plate-shaped blades arranged at different radial positions and angles. This segmentation creates multiple shear zones and interaction points between gas-liquid interfaces, significantly enhancing the efficiency of fine bubble generation while maintaining the bubble size reduction function
Solution Approach 2:
The invention transitions from a single flat plate configuration to a three-dimensional arrangement of multiple plates extending in radial and axial directions. This dimensional expansion creates complex flow patterns and multiple agitation zones, enabling efficient fine bubble generation throughout the liquid volume
2Device complexity
If conventional agitation blades are used, then simple structure is maintained, but sufficient bubble formation cannot be achieved at low fuel flow rates
Solution Approach 1:
The multi-plate agitation blade structure serves multiple functions simultaneously: it agitates the liquid, shears gas-liquid interfaces, generates fine bubbles, and maintains effective mixing at various flow rates. This multi-functionality allows sufficient bubble formation across different operating conditions without requiring separate systems
Solution Approach 2:
The agitation blades are designed to create dynamic flow patterns that adapt to different fuel flow rates. The rotational motion generates varying shear forces and turbulence levels, enabling the system to maintain effective bubble formation whether the fuel flow rate is high or low
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 configuration allows for the effective generation of fine bubbles, ensuring sufficient bubble formation regardless of the fuel flow rate, thereby enhancing the efficiency of gas-liquid reactions.
Implementation Method 1
The disk is provided with a plurality of openings to shear the liquid and the gas
Data Source
AI summary
An agitation device includes: an agitation member including a disk of substantially plate shape provided rotatably about a vertical axis in a passage through which liquid and gas flow; and a motor configured to rotationally drive the agitation member. The disk is provided with a plurality of openings to shear the liquid and the gas.