Hydraulic Mounting Device for Electrolysis Stack Assembly
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Solution Overview
Problem
Current mounting devices for electrolysis cells in electrolyzers are complex, costly, and lack flexibility, making them inefficient for assembly and maintenance, especially at high operating pressures, requiring improved methods for mechanical tensioning and fluid sealing while ensuring electrical connectivity.
Innovation Solution
A flexible, separate mounting device applies axial force using hydraulic assembly, allowing for precise and reproducible surface pressure application, with a releasable connection that can be reused across multiple electrolysis stacks, reducing complexity and cost, and facilitating easier assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex pressing and tensioning devices are used to apply and maintain axial force, then reliable fluid sealing and electrical contacting are achieved, but device complexity and cost increase significantly
Solution Approach 1:
The mounting device is extracted as a separate, removable tool rather than an integrated permanent component. It can be detached after applying the necessary axial force, eliminating the need for complex permanent pressing devices while maintaining reliable sealing and electrical contact during the critical assembly phase
Solution Approach 2:
The mounting device acts as an intermediary tool between the assembler and the electrolysis cells. It provides the necessary axial force temporarily during assembly, then can be removed without affecting the permanent sealing and electrical contact structures of the electrolyzer
2Reliability
If permanent pressing devices are integrated into the electrolyzer housing, then surface pressure is permanently maintained, but flexibility for servicing and maintenance is reduced
Solution Approach 1:
The mounting device transitions from a static permanent structure to a dynamic removable tool. It can be applied when needed during assembly or maintenance, then removed to allow flexible servicing, combining the benefits of permanent pressure maintenance with operational flexibility
Solution Approach 2:
The mounting device is discarded after its temporary function is completed and can be recovered for reuse. This eliminates the need for permanent integrated pressing devices while ensuring reliable assembly, and enables flexible maintenance operations
3Manufacturing precision
If specialized assembly aids and monitoring devices are used to apply axial force, then desired mechanical tensioning is achieved, but assembly cost increases
Solution Approach 1:
The mounting device is designed as a relatively simple, inexpensive tool that can be easily replaced. It provides sufficient mechanical tensioning precision during assembly without requiring expensive specialized equipment, and can be discarded or reused after its temporary function is completed
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 solution enables cost-effective and reliable assembly of electrolysis stacks, reduces installation space, and allows for flexible adaptation to different geometries, ensuring efficient fluid sealing and electrical connectivity at high pressures, thus improving operational reliability and reducing maintenance costs.
Implementation Method 1
A hydraulic assembly (9) is provided, which serves for applying an axial force (F) to the electrolysis stack (5)
Data Source
AI summary
The invention relates to a mounting device for use in an electrolyser for mechanically pressing a plurality of electrolysis cells, which are centered in relation to each other in the axial direction by means of a centering linkage to form an electrolysis stack, by applying an axial force (F), said mounting device comprising a hydraulic assembly having a pressure plate, an actuator, and a receptacle, the receptacle having a number of connecting elements located on the periphery of the pressure plate for detachable connection to the electrolysis stack in such a way that, when the hydraulic assembly is activated by the axial force (F), the mechanical pressing can be carried out. The invention also relates to the use of a mounting device for mounting electrolysis cells of an electrolyser.