Electrolyzed Water Device Dynamic Polarity Switching
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Solution Overview
Problem
Existing electrolyzed water generation devices face issues with scale adhesion on power feeders, leading to decreased dissolved hydrogen concentration and increased discarded water due to inefficient polarity switching and water discharge processes.
Innovation Solution
The device incorporates a switching control unit that adjusts the polarity and flow passage switching based on detected current or voltage ratios, optimizing the switching interval to reflect actual use states and environments, thereby reducing scale adhesion and discarded water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the polarities of power feeders are switched to suppress scale adhesion, then scale adhesion is reduced, but waiting time increases and discarded water increases
Solution Approach 1:
The patent applies dynamics by making the switching interval adjustable rather than fixed. The switching control unit dynamically modifies the polarity switching timing based on detected scale adhesion levels, allowing the system to adapt the switching frequency to actual conditions. This resolves the contradiction by enabling scale suppression when needed while reducing unnecessary switching that causes waiting time.
Solution Approach 2:
The patent implements feedback through scale adhesion detection units that monitor the actual scale deposition on power feeders. The switching control unit uses this feedback information to intelligently adjust the polarity switching interval, switching more frequently when scale adhesion is high and less frequently when scale adhesion is low. This feedback mechanism eliminates the need for fixed conservative switching intervals, thereby reducing waiting time while maintaining scale suppression effectiveness.
2Object-affected harmful factors
If the polarity switching interval is shortened to reduce scale adhesion, then scale adhesion is suppressed, but discarded water increases and usability decreases
Solution Approach 1:
The system uses scale adhesion detection feedback to determine the optimal polarity switching interval. Instead of using a fixed short interval that causes excessive discarded water, the system adjusts the switching timing based on actual scale deposition levels. When scale adhesion is low, the switching interval is extended, reducing discarded water. When scale adhesion increases, the interval is shortened to prevent scale buildup, thus optimizing the balance between scale suppression and water utilization.
Solution Approach 2:
The patent changes the parameter of switching interval from a fixed value to a dynamically adjustable parameter based on scale adhesion conditions. By modifying the switching interval parameter according to detected scale levels, the system achieves effective scale suppression while minimizing discarded water, resolving the contradiction between scale control and water efficiency.
3Device complexity
If a fixed switching interval is used for polarity switching, then the control is simple, but it cannot adapt to different use states and environments
Solution Approach 1:
The patent introduces feedback-based adaptive control where scale adhesion detection units provide real-time information about scale deposition conditions. The switching control unit processes this feedback and automatically adjusts the polarity switching interval accordingly. This maintains relative control simplicity while achieving high adaptability to different use states and environments, resolving the contradiction between control simplicity and adaptability.
Solution Approach 2:
The system performs self-adjustment of the switching interval based on its own operational conditions detected through scale adhesion monitoring. The switching control unit autonomously modifies the polarity switching timing without requiring external intervention or complex user settings, enabling the system to adapt to different use states while maintaining simple operation. This self-service capability resolves the contradiction between control simplicity and environmental adaptability.
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 approach enhances usability by optimizing the switching interval according to user states and environments, reducing scale adhesion and discarded water, and ensuring consistent electrolysis quality.
Implementation Method 1
an electrolytic cell having an anode chamber and a cathode chamber which are divided with a membrane and which electrolyzes raw water
Implementation Method 2
a membrane arranged between the first power feeder and the second power feeder and dividing the electrolytic chamber into a first polar chamber on a side of the first power feeder and a second polar chamber on a side of the second power feeder
Data Source
AI summary
An electrolyzed water generation device is provided with a first flow passage delivering electrolyzed water generated in one of a first polar chamber and a second polar chamber of an electrolytic chamber, a second flow passage delivering electrolyzed water generated in the other one of the first polar chamber and the second polar chamber, a double autochange crossline valve in which a flow rate regulating valve 74 and a flow passage switching valve 85 are interlocked, a polarity switching unit 51 switching the polarities of a first power feeder 41 and a second power feeder 42, a current detection unit 44 detecting a current to be supplied to the first power feeder 41 and the second power feeder 42, a storage unit 55 storing a switching interval for the polarity switching unit 51 and the flow passage switching valve 85, and a switching control unit 52 switching the polarity and the flow passage switching valve 85 based on the switching timing. The switching control unit 52 changes the switching interval stored in the storage portion 55 based on an integrated value of currents after switching the polarity.