Super-micro Bubble Generation Using Conductive Porous Medium

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Solution Overview

Problem

Conventional methods for generating super-micro bubbles face issues such as corrosion and durability problems due to cavitation, mesh membrane depletion, and instability in particle size, limiting installation flexibility and functional suitability.

Innovation Solution

A super-micro bubble generation device using a high-density, electrically conductive compound in a conical shape with a liquid jetting mechanism to produce negatively charged bubbles, preventing coalescence and allowing for flexible installation designs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a rotating wing or cutting tool is used to tear bubbles into super-micro bubbles, then large amounts of super-micro bubbles can be generated, but fast rotation causes corrosion due to cavitation or abrasion of devices

Engineering Contradiction:
Improveamount of super-micro bubbles generatedVSAvoiddurability of device
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The invention extracts the bubble generation function from mechanical tearing components (rotating wings, cutting tools) and relocates it to a gas injection system with porous structure. The gas is injected through porous materials to form super-micro bubbles directly, eliminating the need for mechanical tearing components that cause cavitation and abrasion.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention replaces the mechanical tearing system (rotating wings, cutting tools) with a gas injection system. Instead of mechanically tearing bubbles, compressed gas is injected through porous materials to generate super-micro bubbles, substituting mechanical action with gas pressure and porous structure.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If a mesh membrane is used to fine down bubbles to super-micro bubbles, then bubbles can be separated, but the mesh membrane becomes depleted in the long run since it is made of organic substance

Engineering Contradiction:
Improvebubble size controlVSAvoiddurability of mesh membrane
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The invention changes the material parameter from organic mesh membrane to inorganic porous material. The porous material maintains stable bubble size control through its pore structure while eliminating the depletion problem associated with organic materials through its chemical stability and resistance to degradation.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention uses composite porous materials that combine structural integrity with bubble separation functionality. The porous structure provides both the mesh-like separation function and the durability of inorganic materials, creating a composite solution that addresses both bubble size control and long-term durability.

Inventive Principle:
Principle #40Composite materials

3Manufacturing precision

If the mesh membrane is provided at right angle with liquid surface, then bubble separation is achieved, but the generated super-micro bubbles will overlap with other super-micro bubbles and will coalesce in a mass bubble

Engineering Contradiction:
Improvebubble separationVSAvoidbubble distribution uniformity
Core Design Contradiction:
Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The invention applies local quality by creating localized gas injection points through porous materials. Gas is injected at multiple localized positions, creating distributed bubble generation points that prevent bubble overlap and coalescence, while maintaining effective separation through the porous structure's local pore configurations.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The invention transitions from a single-plane mesh membrane arrangement to a three-dimensional porous structure. The porous material extends in multiple dimensions, allowing gas to be injected and bubbles to be formed throughout a volumetric space, which prevents bubble overlap and improves distribution uniformity while maintaining separation effectiveness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Productivity

If the liquid jetting nozzle is disposed around the air jetting nozzle, then bubbles can be torn into super-micro bubbles, but it is difficult to stabilize the particle size because there is limitation in pore size of the nozzle

Engineering Contradiction:
Improvebubble generation efficiencyVSAvoidparticle size stability
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The invention uses porous materials with controlled pore sizes to generate super-micro bubbles. The porous structure provides a large number of uniform pores that act as bubble formation sites, allowing for both high productivity and stable particle size control. The pore size distribution in the porous material can be precisely controlled to achieve uniform bubble sizes.

Inventive Principle:
Principle #31Porous materials

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 device generates stable, non-coalescing super-micro bubbles with improved durability and installation flexibility, utilizing a high-density compound that resists erosion and an electrically conductive material for negative charging, ensuring effective bubble separation and generation.

Implementation Method 1

a compressor for delivering gas under pressure

Methodology Applied
Scientific EffectPressure: Pressure Increase

Implementation Method 2

the said bubble generation medium consists of a high-density compound which is an electrically conductive substance

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Implementation Method 3

a liquid jetting device for jetting liquid in the direction substantially perpendicular to the direction in which the bubble generation medium discharges the super-micro bubbles

Methodology Applied
Scientific EffectLiquid flow: Jet

Data Source

PatentUS8919747B2Super-micro bubble generation device
Publication Date: 2014.12.30 NISHIKEN DEVISE
  • US8919747B2 patent drawing
  • US8919747B2 patent drawing
  • US8919747B2 patent drawing

AI summary

Provided is a super-micro bubble generation device providing super-micro bubbles using a simple method and having a higher degree of freedom of installation so as to be suitable for a place where the device is to meet functional requirements. A super-micro bubble generation device is provided with a compressor for delivering gas under pressure, and also with a bubble generation medium for discharging the gas, which has been delivered under pressure, as super-micro bubbles into liquid. The bubble generation medium consists of a high-density compound which is an electrically conductive substance. The super-micro bubble generation device is also provided with a liquid jetting device for jetting liquid in the direction substantially perpendicular to the direction in which the bubble generation medium discharges the super-micro bubbles, said liquid being the same kind of liquid as the liquid into which the super-micro bubbles are discharged.