Structured Electrode Arrangement for Turbulent Flow Mixing
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Solution Overview
Problem
Existing electrode arrangements for electrochemical ozone production face inefficiencies due to inhomogeneous ion distribution and mass transport limitations, particularly when secondary reactions or ion mixing are required, as they often result in slow diffusion and uneven reaction product conversion.
Innovation Solution
The electrode arrangement features a structured surface with varying distances between the electrode and the chamber side, promoting turbulent flow and increasing the electrode surface area, allowing for homogeneous ion distribution and overcoming mass transport limitations by integrating a static mixer into the electrode surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If structured electrodes are used to increase surface area, then electrode surface area is improved, but ion distribution homogeneity deteriorates
Solution Approach 1:
The electrode surface is segmented into multiple protrusions distributed across the surface. Each protrusion acts as an independent electrochemical reaction site, creating multiple localized zones that collectively improve ion distribution throughout the liquid volume while maintaining high total surface area.
Solution Approach 2:
The electrode surface is transformed from a flat two-dimensional plane to a three-dimensional structure with protrusions extending into the liquid. This dimensional change increases the effective surface area while the spatial distribution of protrusions promotes more uniform ion generation throughout the chamber volume.
2Ease of manufacture
If conventional electrodes are used, then manufacturing simplicity is maintained, but electrochemical efficiency deteriorates due to mass transport limitations
Solution Approach 1:
The electrode structure creates dynamic flow patterns through its protrusions. The liquid flow interacts with the three-dimensional surface features, generating turbulence and enhanced mixing that actively improves mass transport to the electrode surface, thereby increasing electrochemical efficiency without complicating manufacturing.
Solution Approach 2:
The invention utilizes hydraulic principles by designing the electrode protrusions to interact with liquid flow. The flow dynamics around the protrusions create regions of varying velocity and pressure that enhance mass transport, leveraging fluid mechanical effects to improve electrochemical performance.
3Device complexity
If diffusion is relied upon for ion distribution, then system complexity is minimized, but ion distribution speed deteriorates
Solution Approach 1:
The electrode protrusions induce mechanical disturbances in the liquid flow, creating turbulence and eddies that actively mix the ions. This mechanical mixing action dramatically accelerates ion distribution compared to passive diffusion, achieving rapid homogenization without adding complex active mixing devices.
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 configuration enhances electrochemical efficiency by ensuring rapid and uniform ion distribution, reducing the reliance on diffusion and improving the production of ozonated water, while maintaining effective electrical insulation.
Implementation Method 1
the structure is configured such that the distance between the electrode surface and the second side increases and decreases multiple times along at least one direction, and the liquid flowing through the through-flow chamber is mixed by means of the structure and is caused in particular to flow in a turbulent manner
Implementation Method 2
water is fed through the at least one through-flow chamber, flowing in through the inlet in the through-flow chamber and out through the outlet of the through-flow chamber. In the through-flow chamber, it comes into contact or at least into spatial proximity with electrodes to which an electrical voltage is applied so that water molecules between the individual electrodes are split into ions
Implementation Method 3
The water molecules are decomposed by hydrolysis, and ozone can be obtained from the oxygen ions to be generated in the water
Data Source
AI summary
The invention relates to an electrode arrangement (10) for electrochemically treating a liquid. The electrode arrangement (10) has two electrodes (2), each of which has at least one electrode surface (4) and at least one through-flow chamber (34) with at least one inlet (22) and at least one outlet (24). The at least one through-flow chamber (34) is delimited on at least one first face by at least one electrode (2) which has a structure (8) on its electrode surface (4) such that a distance between the electrode surface (4) and a second through-flow chamber (34) face lying opposite the first face is varied. The invention is characterized in that the structure (8) forms at least 30% of the electrode surface (4) and is designed such that the distance between the electrode surface (4) and the second face increases and decreases multiple times along at least one direction, and the liquid flowing through the through-flow chamber (34) is mixed by means of the structure (8) and is set into a turbulent flow in particular.