Fluid Nozzle Gas Dissolution with Bubble Recycling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gas dissolution apparatuses face inefficiencies due to unrecycled bubbles, limited space requirements for effective contact, and restricted gas dissolution rates, leading to reduced gas-liquid contact area and prolonged dissolution times.
Innovation Solution
A sealed dissolving tank with a fluid nozzle utilizing a Venturi tube structure for multi-iteration bubble miniaturization, incorporating a gas and liquid bubble inlet system that increases contact surface area and prolongs bubble residence time through shear forces and centrifugal pressurization, allowing for efficient gas recycling and dissolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a diffuser is used to generate tiny bubbles, then the contact area between gas and liquid is increased, but the bubbles cannot be recycled and the dissolving tank must be sufficiently deep to keep bubbles in liquid long enough
Solution Approach 1:
The patent recovers bubbles that would otherwise be wasted by installing a gas collection device at the liquid surface to collect un-dissolved bubbles, and a gas recycling device to return collected bubbles back into the liquid for further dissolution attempts. This transforms the conventional one-way dissolving process into a cyclic process that recovers and reuses gas resources.
Solution Approach 2:
The dissolving process is segmented into multiple stages: initial bubble generation by the diffuser, surface collection by the gas collection device, and recycling back into the liquid by the gas recycling device. This segmentation allows different functions to be performed at different locations and times, improving overall efficiency.
2Duration of action of moving object
If the dissolving tank is made sufficiently deep to keep bubbles in liquid long enough for improving dissolving efficiency, then contact time is increased, but much space is taken up
Solution Approach 1:
The gas recycling device creates a continuous circulation system where un-dissolved bubbles are continuously collected from the surface and returned to the liquid. This continuous action extends the effective residence time of bubbles in the liquid without requiring increased tank depth, as bubbles undergo multiple dissolution attempts in a compact space.
Solution Approach 2:
The recycling process creates periodic circulation of bubbles through the liquid, with bubbles being repeatedly introduced, attempting dissolution, being collected, and returned. This periodic action achieves extended contact time through multiple cycles rather than requiring a single long residence period in a large volume.
3Productivity
If a Venturi tube is used to mix gas and liquid, then gas dissolution occurs, but the amount of gas is restricted by liquid flowing speed and the range for adjustment is limited
Solution Approach 1:
The system combines multiple dissolving mechanisms (diffuser and Venturi tube) and a recycling system into a single versatile apparatus that can handle various gas-liquid dissolution requirements. The modular design allows adjustment of operating parameters to suit different applications and gas types.
Solution Approach 2:
The system dynamically adjusts the balance between diffuser-based dissolution and Venturi tube-based dissolution based on operating conditions. The recycling rate and flow rates can be varied to optimize performance for different gas dissolution rates and liquid flow speeds, providing adaptability across a wide range of conditions.
4Speed
If the liquid flowing speed is increased in a Venturi tube to improve gas dissolution, then contact area increases, but the amount of gas is restricted and efficiency decreases
Solution Approach 1:
The gas recycling device ensures continuous dissolution attempts by returning un-dissolved bubbles to the liquid. This continuity compensates for the reduced contact time caused by high liquid flow speeds, maintaining high dissolution efficiency even when liquid flows quickly through the system.
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
Enhances gas dissolution efficiency by increasing contact surface area and prolonging bubble residence time, reducing gas waste and achieving higher density gas-liquid solutions in a unit time.
Implementation Method 1
using the high speed jet current generated by the high-pressure liquid entering the throat of the tube with a smaller diameter to cause negative pressure to suck the gas into the tube throat for mixing
Implementation Method 2
using the high speed jet current generated by the high-pressure liquid entering the throat of the tube
Implementation Method 3
The act of liquid sucking generates a shear force, which breaks down the bubble into smaller bubbles for dissolving easily
Implementation Method 4
the pump operates by vane centrifugal pressurization, the vane can further break down the bubble into smaller bubbles during the centrifugal pressurization
Data Source
AI summary
A generation apparatus for dissolving gas in liquid includes a sealed dissolving tank, a gas supply tube, a liquid supply set, and a fluid nozzle, wherein the sealed dissolving tank having a liquid inlet tube and a liquid outlet tube; a gas chamber formed inside the tank above liquid level; the gas supply tube supplying gas into gas chamber; the fluid nozzle disposed inside the tank; the liquid supply set supplying liquid to the fluid nozzle; the fluid nozzle disposed with at least a gas inlet and at least a liquid bubble inlet at different locations on shell wall; the gas inlet connected to a gas tube to the gas chamber, and the liquid bubble inlet located below the liquid level inside the tank. As such, the fluid nozzle performs at least two dissolving operations to miniaturize the bubbles to increase contact surface and improve dissolving efficiency.