Neutralization Cell pH Control in Electrochemical Chlorine Generation
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Solution Overview
Problem
The challenge lies in maintaining effective on-site generation of chlorine and alkaline solutions for washing machines, as existing methods face difficulties such as pH level reduction during electro-chemical activation, which can lead to safety issues and inefficient cleaning solutions.
Innovation Solution
A neutralization cell system is introduced, comprising a neutralization anode and cathode, which increases the pH level of chlorine solutions by directing the chlorine solution flow through the cell in a specific manner, ensuring efficient neutralization and maintaining a safe pH range, thereby preventing the formation of harmful chlorine gas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If chlorine solution is generated through electro-chemical activation, then on-site generation of cleaning solutions is achieved, but pH level reduction occurs during the process
Solution Approach 1:
The electrochemical system is divided into separate anode and cathode chambers with distinct functions. The anode chamber generates chlorine solution while the cathode chamber handles neutralization, allowing independent optimization of each process and preventing pH collapse in the chlorine generation zone
Solution Approach 2:
A neutralization chamber acts as an intermediary between the anode and cathode chambers. This intermediate zone allows controlled mixing and pH adjustment of the chlorine solution before it reaches the cathode, preventing direct contact between highly acidic anode effluent and alkaline cathode effluent that would cause rapid pH fluctuation
2Productivity
If pH level is reduced during electro-chemical activation, then electro-chemical reaction proceeds, but harmful chlorine gas formation increases
Solution Approach 1:
The system converts the potentially harmful low-pH acidic environment into a beneficial controlled reaction condition. By maintaining specific pH ranges through the multi-chamber design and neutralization process, the system promotes desired electrochemical reactions while suppressing harmful chlorine gas evolution, turning a risk factor into a controllable parameter
3Ease of operation
If chlorine and alkaline solutions are stocked for washing machines, then cleaning solutions are readily available, but inventory space and resources are consumed
Solution Approach 1:
The washing machine system incorporates on-site electrochemical generation capabilities, allowing it to produce its own cleaning solutions from basic salts and water. This self-service approach eliminates the need for external storage and delivery of large volumes of pre-made chlorine and alkaline solutions, reducing inventory space requirements while maintaining solution availability
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 system effectively raises the pH level of chlorine solutions, preventing the formation of chlorine gas and enhancing the concentration of active chlorine, ensuring safer and more effective cleaning solutions for washing machines.
Implementation Method 1
the system is configured to generate the incoming flow of the chlorine solution in a chamber cell via electrolysis
Implementation Method 2
neutralization cell for increasing a pH level of a chlorine solution
Data Source
AI summary
A neutralization cell is provided which may be used to increase a pH level of a chlorine solution. The neutralization cell includes a neutralization anode, a neutralization cathode, an inlet, and an outlet. The neutralization anode and the neutralization cathode are positioned to divide the neutralization cell into a middle area between the neutralization anode and the neutralization cathode, an anode area on a side of the neutralization anode furthest from the neutralization cathode, and a cathode area on a side of the neutralization cathode furthest from the neutralization anode. The inlet directs the chlorine solution into the neutralization cell by directing an incoming flow of the chlorine solution into the anode area. The outlet directs the chlorine solution out of the neutralization cell by directing an outgoing flow of the chlorine solution from the cathode area.