Universal Cell Frame for High-Pressure Water Electrolyzer
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Solution Overview
Problem
Conventional cell frames for water electrolyzers are not universally applicable and require different designs for anode and cathode configurations, leading to increased design complexity, manufacturing costs, and sensitivity to assembly tolerances.
Innovation Solution
A universal cell frame that can function as both an anode and cathode frame, with a unitary annular member featuring specific transverse openings and radial passageways, allowing for operation in either configuration without internal modifications, simplifying design and assembly processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different cell frame designs are used for anode and cathode configurations, then the electrolyzer can be optimized for specific feed conditions, but the design complexity and manufacturing costs increase
Solution Approach 1:
The patent applies universality by designing a single cell frame structure that can function for both anode and cathode configurations. The frame includes symmetric opening arrangements and interchangeable component interfaces, allowing the same frame design to be used regardless of whether feed enters through the anode or cathode side, thereby eliminating the need for separate optimized designs while maintaining versatility
2Adaptability or versatility
If different cell frame designs are used for anode and cathode configurations, then specific feed conditions can be optimized, but manufacturing costs increase
Solution Approach 1:
The universal frame design reduces manufacturing costs by enabling production of a single standardized frame type rather than multiple configuration-specific frames. This standardization allows for economies of scale in manufacturing, simplified inventory management, and reduced assembly variations, while still supporting both anode and cathode feed configurations through the frame's symmetric design
3Adaptability or versatility
If different cell frame designs are used for anode and cathode configurations, then performance can be optimized for each configuration, but assembly complexity increases
Solution Approach 1:
The universal frame simplifies assembly by providing consistent mounting interfaces, opening locations, and component attachment points regardless of feed configuration. Assemblers work with the same frame design and procedures for both anode and cathode configurations, reducing training requirements and minimizing assembly errors, while the frame maintains the ability to support optimized performance for either configuration
4Manufacturing precision
If conventional cell frames are used, then assembly tolerances can be loose, but sensitivity to tolerance variations increases
Solution Approach 1:
The frame design incorporates asymmetric tolerance compensation features in its symmetric overall structure. Specific elements such as sealed openings and mounting surfaces include built-in compliance features and tolerance buffers that absorb dimensional variations, allowing the frame to maintain reliable sealing and component alignment even when assembly tolerances vary, thereby reducing sensitivity to tolerance variations
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
The universal cell frame reduces design time, manufacturing costs, and assembly complexity, while maintaining consistent performance in both anode and cathode feed conditions, and is less sensitive to tolerance variations, resulting in a more uniform and efficient electrolysis process.
Implementation Method 1
each of the four matching sets of transverse openings being spaced apart by about 90 degrees, two of the four matching sets of transverse openings being spaced apart from one another by about 180 degrees and each being fluidly interconnected with the central opening by at least one internal radial passageway
Data Source
AI summary
Universal cell frame generic for use as an anode frame and as a cathode frame in a water electrolyzer. According to one embodiment, the universal cell frame includes a unitary annular member having a central opening. Four trios of transverse openings are provided in the annular member, each trio being spaced apart by about 90 degrees. A plurality of internal radial passageways fluidly interconnect the central opening and each of the transverse openings of two diametrically-opposed trios of openings, the other two trios of openings lacking corresponding radial passageways. Sealing ribs are provided on the top and bottom surfaces of the annular member. The present invention is also directed at a water electrolyzer that includes two such cell frames, one being used as the anode frame and the other being used as the cathode frame, the cathode frame being rotated 90 degrees relative to the anode frame.