Bubble Generating Mechanism with Segmented Restrictor
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Solution Overview
Problem
Conventional shower systems fail to generate sufficient quantities of micro-nano bubbles with longer retention times and are inefficient due to complex mechanisms and insufficient cavitation effects, leading to poor bubble generation and increased fluid resistance.
Innovation Solution
A bubble generating mechanism with a flow channel and a restrictor that divides the cross-sectional area into multiple segments, enhancing the cavitation effect by creating high-speed flow gaps and reducing fluid resistance, allowing for increased flow rates and efficient bubble formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single restriction hole with closed periphery (Venturi tube or orifice) is used, then the structure is simple, but fluid resistance increases and flow rate does not increase to expected levels
Solution Approach 1:
The restrictor is divided into multiple collision parts (three or more) that segment the flow channel into multiple passage regions. This segmentation reduces fluid resistance by distributing the flow across multiple paths while maintaining restriction functionality, enabling the flow rate to increase to expected levels without compromising structural simplicity.
2Device complexity
If a single restriction hole with closed periphery is used, then the structure is simple, but the restriction hole is subject to back pressure from internal wall surface and cavitation effect becomes insufficient
Solution Approach 1:
The single restriction hole is segmented into multiple passage regions by collision parts. This segmentation eliminates the back pressure problem from a single large internal wall surface by creating multiple smaller passage regions, thereby enhancing the cavitation effect while maintaining structural simplicity through the integration of collision parts into the existing restrictor.
3Device complexity
If conventional bubble generating mechanisms are used, then the mechanism is established, but the size of fine bubbles is insufficient and quantity of micro-nano bubbles is insufficient
Solution Approach 1:
The flow channel is segmented into multiple passage regions by collision parts, creating numerous flow paths that generate finer bubbles. This segmentation increases the surface area for gas-liquid interaction and enhances cavitation, producing micro-nano bubbles with sufficient small sizes and quantities without requiring complex additional mechanisms.
Solution Approach 2:
The invention changes the flow dynamics parameters by introducing collision parts that create turbulent flow and pressure variations. These parameter changes in flow velocity, pressure, and turbulence intensity enable the generation of fine micro-nano bubbles with improved size distribution and quantity, achieving manufacturing precision in bubble characteristics.
4Ease of operation
If service water pressure for general use is used, then the system is practical for bathing, but rotational speed is insufficient for changing suctioned external air into sufficiently small bubbles
Solution Approach 1:
The collision parts segment the flow into multiple passage regions, which amplifies the cavitation effect at service water pressures. This segmentation creates sufficient local velocity and pressure variations to generate fine bubbles even without high rotational speed, making the system practical for general bathing use while achieving fine bubble production.
Solution Approach 2:
The invention optimizes flow parameters (velocity, pressure, turbulence) through the collision part geometry and arrangement, enabling fine bubble generation at standard service water pressures. This parameter optimization eliminates the need for high rotational speed while maintaining bubble size precision suitable for bathing applications.
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 mechanism effectively generates a large amount of fine bubbles, including nano-bubbles, by enhancing the cavitation effect and flow rates, improving bubble concentration and retention time without the need for complex gas-liquid mixture mechanisms.
Implementation Method 1
When water passes through the restriction mechanism at an increased flow rate, a pressure reduction effect generated based on Bernoulli's principle causes the air dissolved in the water to deposit as fine bubbles
Implementation Method 2
enhancing the cavitation effect by creating high-speed flow gaps and reducing fluid resistance, allowing for increased flow rates and efficient bubble formation
Data Source
AI summary
Provided is a bubble generating mechanism that does not use a complicated air mixing mechanism and generates micro-bubbles in a sufficient quantity. A flow path (2) that connects an inflow opening (2n) that opens on an inflow end and an outflow opening (2x) that opens on an outflow end is formed in a state passing completely through a member main body (6), and a constricted part (2c) the flow-through cross-sectional area of which is smaller than the inflow opening (2n) is formed in a position within that flow path (2). Colliding parts (3) that further reduce the cross-sectional area of the flow path in the constricted part (2c) are disposed in the constricted part (2c) in a state that divides the axial plane of the flow path (2) into three or more segment areas (2e).