Parallel Ion Exchanger Filter Assembly for Uniform Flow Paths
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Solution Overview
Problem
Existing ion exchanger filter assemblies for fuel cell systems face challenges in ensuring uniform flow distribution and efficient deionization, particularly when using mixed cooling liquids, which can lead to short circuits due to electrical conductivity.
Innovation Solution
The design includes at least two ion exchanger units with identical housings and fluid connections arranged in parallel, ensuring uniform flow paths and resistance, allowing for interchangeable cartridges with different resins and easy connection to a cooling circuit using connection pipes with seal elements and clamping elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple ion exchanger units are connected in parallel, then the deionization capacity is improved, but the uniformity of flow distribution deteriorates
Solution Approach 1:
The system divides the deionization function into multiple independent ion exchanger units (first ion exchanger unit, second ion exchanger unit, etc.), each capable of independent operation. This segmentation allows parallel connection to increase overall deionization capacity while maintaining individual unit performance characteristics.
Solution Approach 2:
The patent implements different flow path designs for different units based on their specific characteristics. The first flow path includes a first flow path length and the second flow path includes a second flow path length, allowing local optimization of flow distribution to ensure uniformity across parallel units.
2Adaptability or versatility
If flow paths have different lengths, then the connection flexibility is improved, but the flow resistance uniformity deteriorates
Solution Approach 1:
The patent explicitly allows different flow path lengths (first flow path length, second flow path length) while compensating through other parameter adjustments. This enables flexible connection configurations while maintaining uniform flow resistance through balanced design of other flow path components.
Solution Approach 2:
Different flow paths are designed with locally optimized characteristics. The first flow path and second flow path can have different lengths and configurations, but each is optimized locally to contribute to overall flow resistance uniformity, allowing connection flexibility without sacrificing performance.
3Ease of manufacture
If ion exchanger units use identical housings, then the ease of manufacture is improved, but the adaptability to different resin types deteriorates
Solution Approach 1:
The ion exchanger system is segmented into replaceable units with standardized housings. Each housing contains ion exchanger media, and the modular design allows different resin types to be installed in different units while maintaining the same external interface and housing structure.
Solution Approach 2:
The identical housings serve multiple functions: they provide structural support, contain different types of ion exchanger media, enable parallel connection configurations, and maintain uniform external dimensions for easy installation and replacement. This universal design allows the same housing to accommodate various resin types.
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
Ensures uniform flow distribution and efficient deionization, facilitating easy assembly and reliable connection to the cooling circuit while allowing for customizable resin ratios and improved ion exchanger efficiency.
Implementation Method 1
deionization by means of an ion exchanger is required
Data Source
AI summary
An ion exchanger filter assembly to be flowed through by liquid to be filtered has at least two ion exchanger units, each provided with a housing with an inlet socket and an outlet socket. An inlet-side fluid connection and an outlet-side fluid connection connect the ion exchanger units to each other. The inlet sockets are connected in fluid communication to the inlet-side fluid connection and the outlet sockets to the outlet-side fluid connection. The ion exchanger units are arranged to provide parallel flow along a flow path. Each flow path has a section through the inlet-side fluid connection, a section through the ion exchanger unit, and a section through the outlet-side fluid connection for uniform flow therethrough. Either all flow paths have a same length or have a same flow resistance. A connection pipe for such a filter assembly.