Externally-Reinforced Electrolyser Structural Plates
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electrolyser modules and stacks face challenges in operating at elevated pressures due to mechanical integrity issues with plastic structural plates, requiring reinforcement without increasing weight, cost, or complexity.
Innovation Solution
The use of external reinforcing means contacting structural plates, with interlocking features for multi-directional contact, enhances the internal fluid pressure holding capability while reducing plastic material requirements and improving creep resistance and structural plate lifetime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If external reinforcing means are added to structural plates, then pressure holding capability and creep resistance are improved, but device complexity increases
Solution Approach 1:
The structural plate is segmented into a plate body portion and a flange portion, with the flange providing external contact surfaces for reinforcing means. This segmentation allows the reinforcement to be applied externally to specific regions without redesigning the entire plate structure, thus improving strength while limiting complexity increase to localized features.
Solution Approach 2:
The structural plate uses composite construction combining the plate body made of pressure-resistant material with flange portions made of structurally supportive material. This composite approach allows each portion to be optimized for its specific function while working together to achieve overall structural integrity under pressure.
2Reliability
If more plastic material is used to reinforce structural plates, then mechanical integrity at elevated pressures is improved, but weight increases
Solution Approach 1:
By segmenting the structural plate into plate body and flange portions, the design allows reinforcement to be concentrated at strategic locations (flanges for external support attachment) rather than uniformly throughout. This targeted approach improves mechanical integrity where needed while minimizing unnecessary material and weight.
Solution Approach 2:
The flange portions are provided with external contact surfaces specifically at locations requiring reinforcement. This local quality approach ensures that additional material and structural support are applied only where mechanical integrity is critical for pressure containment, rather than adding weight uniformly across the entire structural plate.
3Duration of action of stationary object
If external reinforcing means are added to structural plates, then creep resistance is improved, but manufacturing complexity increases
Solution Approach 1:
The structural plate is divided into plate body and flange portions that can be manufactured separately and then assembled. The flanges with external contact surfaces can be produced as standardized components and attached to the plate body, allowing each part to be optimized for its manufacturing process and simplifying quality control.
Solution Approach 2:
The flange portions with external contact surfaces are designed to be pre-formed or pre-assembled before the final assembly with reinforcing means. This preliminary preparation of contact surfaces and flange structures simplifies the overall manufacturing process by breaking down complex operations into manageable stages.
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 approach allows for higher pressure operation without significant increases in weight, cost, or complexity, ensuring long-term mechanical integrity and efficient assembly of electrolyser modules and stacks.
Implementation Method 1
The structural plates and half cell components define an array of series connected electrolytic cells. The structural plates define, at least when in face to face juxtaposition, passages for fluid flow inside the electrolyser module.
Implementation Method 2
At least some of the structural plates further define contacting means on the side walls of said at least one of said structural plates for achieving contact with the at least one external reinforcing means at points of contact on said side walls of said at least one of said structural plates; wherein said at least one external reinforcing means further comprise at least one contacting means that interlocks with said at least one contacting means on the sidewalls of said at least one of said structural plates.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A structural plate with external reinforcing means is provided for an electrolyser module. The structural plate defines at least one degassing chamber and a half cell chamber opening. The external reinforcing means contact the structural plate for mitigating outward displacement of the structural plate in response to fluid pressure within the structural plate. The structural plate and the external reinforcing means define interlocking features for achieving contact and corresponding mechanical reinforcement.