Electrolysis Cell Series-Parallel Configuration for High Chlorine
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Solution Overview
Problem
Existing systems for producing electrochemically activated salt solutions by electrolysis are limited in achieving high free chlorine content and long shelf life, which are crucial for effective disinfection and medical applications.
Innovation Solution
The system connects the first electrode spaces of electrolysis cells in parallel and the second electrode spaces in series, allowing for a cascaded treatment of the electrolyte, which results in a high concentration of chloride ions and extended shelf life, with the cathode compartments connected to the anode compartment of the first electrolytic cell for optimal ion enrichment and minimal waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electrolysis cells are connected in parallel on the media side, then the productivity and throughput are improved, but the free chlorine content and shelf life are reduced
Solution Approach 1:
The electrolysis system is segmented into multiple cells with differentiated connection configurations. First electrode spaces are connected in parallel for high throughput, while second electrode spaces are connected in series to accumulate and concentrate chloride ions, achieving both high productivity and high free chlorine content simultaneously
Solution Approach 2:
Different electrode spaces within the same system are assigned different connection configurations based on their specific functions. The first electrode spaces use parallel connection for high flow rate, while the second electrode spaces use series connection for ion accumulation, optimizing each local region for its specific purpose
2Reliability
If electrolysis cells are connected in series on the media side, then the free chlorine content is improved, but the productivity and throughput are reduced
Solution Approach 1:
The electrolysis cells are segmented into two functional groups with different connection types. First electrode spaces are connected in parallel to maintain high throughput, while second electrode spaces are connected in series to achieve high free chlorine content through cumulative ion enrichment
Solution Approach 2:
The system merges parallel and series connection configurations within the same electrolysis unit. Parallel connection of first electrode spaces ensures high media throughput, while series connection of second electrode spaces ensures high free chlorine content, combining both advantages in a single integrated system
3Device complexity
If the electrolyte is treated in a single stage, then the device complexity is reduced, but the free chlorine content and shelf life are limited
Solution Approach 1:
The electrolyte treatment process is segmented into two sequential stages: first electrode spaces handle bulk electrolysis with parallel connection for high throughput, while second electrode spaces perform ion accumulation and concentration with series connection. This multi-stage approach achieves high free chlorine content without excessive complexity
Solution Approach 2:
The first electrode spaces perform preliminary electrolysis to generate initial free chlorine and chloride ions, which are then fed to the second electrode spaces for further concentration and enrichment. This preliminary action enables the final high free chlorine content while keeping the overall system manageable
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 achieves a free chlorine content of up to 2,000 mg/L with a long shelf life, producing a highly effective disinfectant with improved bactericidal properties and extended usability.
Implementation Method 1
a medium is electrolytically decomposed by applying a supply voltage between an anode and a cathode
Implementation Method 2
Through the electrolytic decomposition of this brine-containing water flow, an electrochemically activated aqueous salt solution can be obtained that has a comparatively high content of 'free chlorine'
Data Source
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AI summary
The device comprises an electrolytic module (2) having electrolytic cells (40). Each electrolytic cell comprises a first electrode space and a second electrode space that is separated from the first electrode space by a membrane. The first electrode spaces of the electrolytic cells are: electrically associated with a common first polarity and connected in series on the media side; are configured as anode spaces; and connected downstream with the second electrode space in the flow direction of the electrolyte in the first electrolysis cell. The device comprises an electrolytic module (2) having electrolytic cells (40). Each electrolytic cell comprises a first electrode space and a second electrode space that is separated from the first electrode space by a membrane. The first electrode spaces of the electrolytic cells are: electrically associated with a common first polarity and connected in series on the media side; are configured as anode spaces; and connected downstream with the second electrode space in the flow direction of the electrolyte in the first electrolysis cell. The second electrode spaces of the electrolytic cell are: electrically associated with a common second polarity and are connected in parallel on the media side; and configured as cathode spaces. A discharge line branches off in the space of the first electrodes of the electrolytic cell with the second electrode space in the flow direction. An input side is connected to a brine tank (10) associated with venturi nozzle (8) in the first electrode spaces upstream inflow. The first electrode spaces upstream inflow in the input side is connected with water softening unit station. A degassing module is connected at the cathode spaces provided for each electrode spaces. An independent claim is included for a method of generating an electrochemically activated solution by electrolysis of water.