Microbubble Generator Slit Structure for Stronger Vacuum Zones
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing bubble generators face inefficiencies in generating microbubbles in water flows, particularly in creating sufficient vacuum areas to maximize microbubble production.
Innovation Solution
A bubble generator design featuring a tubular main body with radially extending slits and protruding columns, where the columns' protrusion gradually reduces towards the upstream side and include recesses on their downstream surfaces, creating multiple vacuum areas for enhanced microbubble generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If columns are added to restrict water flow and create vacuum areas, then microbubble generation efficiency improves, but device complexity increases
Solution Approach 1:
The bubble generating part is segmented into multiple functional elements: columns with varying protrusion heights, slits for flow restriction, and recesses for vacuum creation. Each segment performs a specific function in the microbubble generation process, allowing optimized performance without requiring a completely complex new design
Solution Approach 2:
Different regions of the columns have different protrusion heights, creating localized variations in flow restriction. The columns gradually reduce protrusion from periphery toward upstream, and recesses are strategically positioned on downstream surfaces. This local differentiation optimizes vacuum area creation and microbubble generation at specific locations without complicating the entire device structure
2Productivity
If columns with recesses are used to create multiple vacuum areas, then microbubble production increases, but manufacturing difficulty increases
Solution Approach 1:
The columns and main body are integrally molded as a single piece, combining multiple functions (flow restriction, structural support, vacuum area creation) into one manufactured component. This reduces assembly steps and manufacturing complexity despite the sophisticated geometry required for effective microbubble generation
3Productivity
If slits are defined by protruding columns, then microbubble generation efficiency improves, but ease of manufacture decreases
Solution Approach 1:
Instead of creating slits by removing material or adding separate components, the invention forms slits by having columns protrude from the main body. The columns are molded as positive features that naturally define the slit spaces between them, inverting the conventional approach of defining flow paths by negative space
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 significantly increases the flow velocity of water, leading to the creation of numerous vacuum areas and thus a substantial increase in microbubble production, even without the use of pumps, making it efficient and cost-effective.
Implementation Method 1
a vacuum area is created downstream from the restrictor according to Bernoulli's principle, and gases dissolved in the water are released due to a cavitation effect
Implementation Method 2
gases dissolved in the water are released due to a cavitation effect (effect of reduced pressure) so that microbubbles are generated
Data Source
AI summary
The purpose of the present disclosure is, in a bubble generating device provided with a bubble generating unit for generating minute bubbles in water flowing through the inside of the cylindrical main body unit, to improve the bubble generating efficiency of the bubble generating unit. Provided is a bubble generating device provided with a cylindrical main body unit and a bubble generating unit disposed within the main body, wherein: the bubble generating unit is provided with slits extending radially centered on one point within the main body unit in a cross-sectional plane of the main body unit, and a column part protruding from the inner peripheral surface of main body unit and formed on the peripheral edge of the slits; and the amount of protrusion of the column part is gradually reduced toward the upstream side from the peripheral edges of the slits, and the column part has a recessed part formed on the downstream surface.