Electrolyzed Water Production Using Turbulent Flow and Ion-Selective Membrane

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Solution Overview

Problem

Conventional methods for producing electrolyzed water are inefficient due to separation of deionized water from the electrochemical reaction zone by mesh electrodes, leading to slow mixing and ion distribution, and result in significant wastewater disposal and energy consumption.

Innovation Solution

An electrode arrangement with an anode and cathode chamber separated by an ion-selective membrane, where water is passed through both chambers and mixed into a turbulent flow, enhancing ion distribution and reducing wastewater volume, with optional ozonized water production in the anode chamber.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If mesh electrodes are used to separate deionized water from the electrochemical reaction zone, then the structure allows liquid passage, but the mixing efficiency decreases and production speed slows

Engineering Contradiction:
Improveliquid passage through electrodeVSAvoidelectrolyzed water production speed
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The invention extracts and removes the mesh electrode structure from the system entirely. Instead of using mesh electrodes to separate and allow liquid passage, the patent employs solid planar electrodes that fully border the chambers, eliminating the mesh structure that caused poor mixing while maintaining the necessary ion and liquid transport functions through the chamber design itself.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention inverts the conventional approach by placing solid electrodes directly in contact with the water to be electrolyzed, rather than separating the water from the reaction zone. The electrodes border the chambers directly, allowing the electrochemical reaction to occur throughout the entire chamber volume, which dramatically improves mixing and production efficiency.

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If deionized water is separated from the electrochemical reaction zone by mesh electrodes, then the electrode structure is maintained, but ion distribution and mixing become slow

Engineering Contradiction:
Improveelectrode structure stabilityVSAvoidion distribution speed
Core Design Contradiction:
ReliabilityVSSpeed

Solution Approach 1:

The mesh electrode structure is completely removed from the system. The invention uses solid planar electrodes that border the chambers directly, eliminating the mesh structure that created barriers to ion distribution while maintaining structural stability through the solid electrode and chamber design.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention transitions from a two-dimensional mesh electrode structure to a three-dimensional chamber configuration where solid electrodes border the entire chamber. This dimensional change allows ions to distribute throughout the full volume of the chamber rather than being constrained by mesh planes, dramatically speeding up ion distribution.

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

3Reliability

If three separate chambers with mesh electrodes are used, then the electrochemical reaction can proceed, but the system complexity and wastewater volume increase

Engineering Contradiction:
Improveelectrochemical reaction functionalityVSAvoidnumber of chambers and electrodes
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention merges the three separate chambers (anode chamber, cathode chamber, and middle chamber) into a simplified two-chamber configuration. The solid anode and cathode directly border their respective chambers, eliminating the need for a separate middle chamber and mesh electrodes, thereby reducing system complexity while maintaining electrochemical reaction functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The solid electrodes serve multiple functions simultaneously: they provide the electrochemical reaction surface, border and contain the water chambers, and enable direct contact between the water and reaction zone. This multi-functionality eliminates the need for separate mesh electrodes and middle chambers, reducing overall system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Ease of operation

If mesh electrodes are used for liquid passage, then the electrode allows flow, but the redox potential remains insufficiently low

Engineering Contradiction:
Improveliquid flow through electrodeVSAvoidredox potential control
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The mesh electrode structure is completely removed. The invention uses solid planar electrodes that provide stable, controlled surfaces for electrochemical reactions, enabling precise redox potential control while liquid flows freely through the chamber without passing through a mesh structure.

Inventive Principle:
Principle #2Taking out (Extraction)

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 method increases the efficiency of electrolyzed water production, reduces wastewater, and achieves energy savings by eliminating the need for three separate chambers and mesh electrodes, allowing for faster production and improved redox potential.

Implementation Method 1

an anode chamber (36) and a cathode chamber (34) which are separated from one another by at least one ion-selective membrane (30)

Methodology Applied
Scientific EffectIon-selective membrane transport: Semipermeable Membrane

Implementation Method 2

an electrical voltage is applied to anode and cathode in such a manner that electrolyzed water is formed in the cathode chamber

Methodology Applied
Scientific EffectElectrolysis: Electrolysis

Implementation Method 3

the water, in particular the distilled water or the ultrapure water, is mixed in the anode chamber and/or cathode chamber, and in particular is put into a turbulent flow

Methodology Applied
Scientific EffectTurbulent flow: Turbulence

Data Source

PatentUS10807887B2Method for electrochemically producing electrolyzed water
Publication Date: 2020.10.20 CONDIAS
  • US10807887B2 patent drawing
  • US10807887B2 patent drawing
  • US10807887B2 patent drawing

AI summary

The invention relates to a method for electrochemically producing electrolyzed water in an electrode arrangement (10) which has an anode chamber and a cathode chamber that are separated by an ion-selective membrane (30). The anode chamber is delimited on at least one side by at least one anode (2), and the cathode chamber is delimited on at least one side by at least one cathode (2). In the method: a) water, in particular distilled water or ultra purified water, in which an electrolyte is located, is conducted through the anode chamber, b) water, in particular distilled water or ultra purified water, is conducted through the cathode chamber, c) the water, in particular the distilled water or the ultra-purified water, is mixed and in particular set into a turbulent flow in the anode chamber and/or cathode chamber, and d) an electric voltage is applied to the anode and the cathode such that electrolyzed water is produced in the cathode chamber.