Conductive Solution Cooling and Retitration Plant
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Solution Overview
Problem
Current methods for cooling and re-titration of conductive solutions in lead-acid battery charging are inefficient, leading to long charging times, unsafe handling environments, and the need for manual concentration adjustments, with existing systems being complex and costly, and lacking full automation.
Innovation Solution
A plant that continuously circulates conductive solutions through a dual circuit system, incorporating a static continuous mixer-adding device for automatic concentration adjustment and cooling, allowing for simultaneous charging of multiple batteries while maintaining desired temperature and acid concentration levels without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If batteries are charged in air without cooling systems, then charging periods are extended to approximately 120 hours, but the system complexity and cost are reduced
Solution Approach 1:
The cooling system is divided into multiple independent cooling circuits, each serving specific batteries or groups of batteries. This segmentation allows the system to scale appropriately and maintain manageable complexity while providing effective cooling across multiple charging stations simultaneously
Solution Approach 2:
The cooling circuits are designed to serve multiple batteries through a shared cooling infrastructure. The system can cool multiple batteries simultaneously using a common cooling medium circulation system, reducing overall system complexity compared to individual cooling systems for each battery
2Productivity
If batteries are placed in cooling vessels containing cooling liquid, then charging periods are reduced to approximately 80 hours, but the system becomes more complex and creates unsafe handling environments
Solution Approach 1:
A heat exchanger acts as an intermediary between the battery and the cooling medium. Instead of direct contact between cooling liquid and battery, the heat exchanger transfers heat from the battery to the cooling medium, eliminating the safety hazards of handling cooling liquid while maintaining effective cooling
Solution Approach 2:
The harmful cooling liquid is extracted from the charging environment entirely. The cooling function is separated from the charging process by using a closed-loop cooling system with heat exchangers, removing the source of safety hazards while preserving the temperature control benefit
3Temperature
If conductive solutions are circulated through cooling circuits with filtration and concentration adjustment, then temperature control is improved, but the system complexity and cost increase
Solution Approach 1:
The cooling and concentration adjustment functions are merged into a single integrated circuit. The conductive solution is cooled and re-titrated in one continuous process without requiring separate filtration and concentration adjustment systems, reducing overall system complexity while maintaining temperature control
Solution Approach 2:
The cooling and concentration adjustment operate continuously in an integrated manner. The conductive solution flows continuously through the cooling circuit while concentration is adjusted in-line, eliminating the need for batch processing and separate operational steps
4Extent of automation
If manual intervention is used for concentration adjustment, then system cost is reduced, but automation level and operational efficiency decrease
Solution Approach 1:
Conductivity sensors provide real-time feedback on the conductive solution concentration, and this feedback automatically controls the concentration adjustment process. The system continuously monitors and adjusts concentration based on measured values, achieving full automation through closed-loop control without complex manual intervention systems
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 solution enables rapid and efficient charging of lead-acid batteries while maintaining safe operating conditions, reducing charging time, eliminating the need for extensive storage vessels, and achieving full automation, resulting in a more compact and cost-effective system.
Implementation Method 1
a cooling unit (120) fitted downstream of the mixer-adding device (113), for cooling the total conductive solutions when they leave the mixer-adding device (113)
Implementation Method 2
a device for continuous density adjustment, known as a static continuous mixer-adding device (113)
Data Source
Figure 1
Figure 2
AI summary
Described is a method and plant (100) for the cooling and the re-titration of conductive solutions, in particular conductive solutions for lead-acid batteries (101) comprising an acid solution in a solvent; the method comprises: introducing in the batteries (101) quantities of conductive solutions with a first concentration (C1) of acid, extracting from the batteries (101) first quantities of conductive solutions at a temperature (T2) and at a second concentration (C2) different from the first temperature and the first concentration, filtering the conductive solutions, after the filtering step, correcting the second concentration acting on a constant flow of conductive solutions in order to obtain conductive solutions with a first concentration, cooling, if necessary, the conductive solutions, and introducing again the cooled and corrected quantities of conductive solutions in the batteries (101).