Cooling Path Ion Cleaning to Cut Conductivity Without Losing Rust Protection
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Solution Overview
Problem
Existing cooling systems fail to sufficiently adsorb thermally deteriorated product ions and eluted ions from pipes, leading to increased conductivity and potential corrosion, especially in battery electric vehicles where space and installation constraints hinder effective ion exchange resin use.
Innovation Solution
A maintenance method involving the introduction of ion exchange resin into the cooling path, followed by ion cleaning using batch or column methods, and subsequent addition of additives to maintain rust-preventive ability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ion exchange resin is used to adsorb ions from cooling liquid, then conductivity reduction and ion removal ability is improved, but rust-preventive ability of cooling liquid deteriorates due to additive saturation
Solution Approach 1:
The patent applies preliminary action by performing ion cleaning with ion exchange resin before adding rust preventive additives to the cooling liquid. This sequence ensures that ions are removed first, creating a clean base, and then rust preventive additives are added to establish protection without being saturated by pre-existing ions, thereby resolving the contradiction between ion removal and rust prevention
Solution Approach 2:
The patent extracts the ion cleaning function from the continuous cooling system by using removable ion exchange resin cartridges that can be introduced into the cooling path, perform ion adsorption, and then removed. This separation allows independent optimization of ion removal and rust prevention functions without interference
2Reliability
If ion exchange resin is permanently mounted in cooling path, then ion cleaning effectiveness is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent employs disposable ion exchange resin cartridges that are introduced into the cooling path for ion cleaning and then removed and discarded after use. This approach eliminates the need for complex permanent mounting systems, regeneration equipment, and monitoring mechanisms, significantly reducing system complexity while maintaining effective ion cleaning during the operational period
Solution Approach 2:
The ion exchange resin is extracted as a separate, removable component rather than being permanently integrated into the cooling system. This allows the resin to be introduced only when needed for ion cleaning and removed afterward, avoiding the complexity of permanent mounting structures, flow distribution systems, and regeneration infrastructure
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
Effectively adsorbs thermally deteriorated product ions and eluted ions, reducing conductivity and preventing corrosion while maintaining the cooling liquid's rust-preventive properties.
Implementation Method 1
performing ion cleaning of cooling liquid in the cooling path by the ion exchange resin
Implementation Method 2
sufficiently adsorb the thermally deteriorated product ions and the eluted ions from the pipes
Data Source
AI summary
A method of maintaining a cooling system includes the steps of introducing an ion exchange resin into a cooling path, performing ion cleaning of a coolant in the cooling path with the ion exchange resin, and adding an additive to the cooling path after removing the ion exchange resin from the cooling path.