Multi-Stage Gas Dissolution With Microbubble Size Control
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Solution Overview
Problem
Conventional systems face challenges in controlling the rise speed of gas in water, leading to insufficient contact time for gas dissolution, limited solubility improvement, and increased operational costs when generating microbubbles.
Innovation Solution
A multi-stage gas solution generation system that includes a gas supply unit, gas solution generation unit, bubble gas solution generation unit, and recovery unit, utilizing venturi devices and arc discharge devices to control gas concentration and generate microbubbles efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If gas is mixed with water under predetermined pressure to generate microbubbles, then gas solubility in water is improved, but it is difficult to control the particle size of gas and the rising speed of bubbles
Solution Approach 1:
The system segments the gas dissolution process into multiple stages using a multi-stage venturi device. Each stage further divides the gas-liquid mixture into smaller bubbles, progressively reducing particle size from macro-bubbles to microbubbles to nanobubbles. This segmentation approach enables precise control over final bubble particle size that cannot be achieved through single-stage mixing.
Solution Approach 2:
The invention transitions from conventional single-dimension mixing to multi-dimensional processing by incorporating sequential stages arranged in series. Each stage adds another dimension of refinement, progressively reducing bubble size through multiple pressure and flow condition changes, thereby achieving precise particle size control.
2Quantity of substance
If microbubbles are generated to improve gas solubility, then contact time between water and gas is increased, but operational costs increase due to large amount of gas required
Solution Approach 1:
The system changes physical parameters progressively through multiple stages: pressure is reduced incrementally from stage to stage, while bubble size decreases and surface area increases. This parameter transformation approach maximizes gas dissolution efficiency at each stage, reducing the total gas quantity needed compared to single-stage systems.
Solution Approach 2:
The multi-stage venturi device maintains continuous gas-liquid contact throughout multiple stages, with each stage building upon the previous stage's output. This continuous multi-stage process ensures complete utilization of gas input, maximizing dissolution efficiency and minimizing waste.
3Quantity of substance
If conventional single-stage gas dissolution is used, then device complexity is low, but gas solubility improvement is limited due to insufficient contact time
Solution Approach 1:
The dissolution process is segmented into multiple sequential stages within a single integrated device. Each stage contains a venturi element that performs specific function (mixing, separating, refining), allowing complex multi-stage processing without requiring multiple separate equipment units.
Solution Approach 2:
The multi-stage venturi device performs multiple functions within a single apparatus: gas-liquid mixing, bubble size reduction, separation, and refinement. This multi-functional integration achieves high gas solubility improvement while maintaining relatively simple device structure compared to using multiple separate equipment units.
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
Improves gas solubility in water through multiple stages, ensuring efficient microbubble generation while maintaining economic feasibility.
Implementation Method 1
a first venturi device connected to a rear end of the first gas discharge device to receive the discharge gas from the first gas discharge device and configured to dissolve at least a portion of the discharge gas in the water supplied from the water supply unit to generate the first gas solution
Data Source
Figure 1
Figure 2~3
AI summary
The present invention relates to a system for dissolving gas. Specifically, an embodiment of the present invention provides a system for dissolving gas, the system including a water supply unit (10) configured to supply water, a gas supply unit (20) configured to supply gas, a gas solution generation unit (30) connected to the water supply unit and the gas supply unit, and a bubble gas solution generation unit (40) connected to a rear end of the gas solution generation unit, wherein the gas solution generation unit includes a first gas solution generator connected in parallel to the gas supply unit and configured to generate a first gas solution and at least one second gas solution generator connected in parallel to the gas supply unit, connected in series to the first gas solution generator to receive the first gas solution from the first gas solution generator, and configured to generate a second gas solution having a gas concentration higher than a gas concentration of the first gas solution, and the bubble gas solution generation unit is connected to the second gas solution generator to receive the second gas solution from the second gas solution generator and generates a third gas solution containing a gas whose particles are smaller than particles of the gas contained in the second gas solution.