Integrated Anode Flow Channel Module for Compact Dual-Stack Fuel Cells
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Solution Overview
Problem
The existing anode subsystems in dual-stack fuel cell systems are bulky and complex due to the use of multiple groups of dispersed three-way rigid pipes and brackets, leading to cramped spatial conditions and complicating manufacturing and mounting processes.
Innovation Solution
An integrated flow channel module that facilitates fluidic connections between functional components through an integrated structure, providing mounting fixing points and allowing for compact assembly, reducing the use of accessories like brackets and ferrule connectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple groups of dispersed three-way rigid pipes and brackets are used for flow diversion and confluence, then fluid distribution can be achieved, but the anode subsystem becomes bulky and complex
Solution Approach 1:
The patent integrates multiple flow channel functions (flow diversion, confluence, distribution) into a single integrated flow channel structure. This merging of previously separate rigid pipes and brackets into one unified component reduces the number of parts, simplifies the overall structure, and eliminates the need for multiple brackets and ferrule connectors while maintaining effective fluid distribution between the first and second stacks.
2Reliability
If multiple groups of dispersed three-way rigid pipes and brackets are used, then fluid flow paths can be established, but the mounting process becomes complicated
Solution Approach 1:
By combining multiple flow paths and connection functions into a single integrated flow channel structure, the patent reduces the number of assembly steps required. The integrated structure comes as one pre-formed component that can be mounted in a single operation, eliminating the need to separately install multiple rigid pipes, brackets, and ferrule connectors, thereby simplifying the mounting process while ensuring reliable fluid flow paths.
3Ease of operation
If multiple groups of dispersed three-way rigid pipes and brackets are used, then flow diversion and confluence can be achieved, but spatial conditions become cramped
Solution Approach 1:
The integration of multiple flow channel functions into a single compact structure significantly reduces the overall volume occupied by the anode subsystem. By eliminating the need for separate rigid pipes, brackets, and connectors that would be dispersed throughout the space, the integrated flow channel consolidates all flow diversion and confluence operations into one space-efficient component, thereby freeing up spatial conditions.
4Reliability
If multiple groups of dispersed three-way rigid pipes and brackets are used, then fluid connections can be established, but production costs increase
Solution Approach 1:
The patent reduces production costs by integrating multiple flow channel functions into a single component that can be manufactured as one piece or pre-assembled unit. This eliminates the need to produce and inventory multiple separate rigid pipes, brackets, and ferrule connectors, reducing manufacturing complexity, material costs, and assembly labor costs while maintaining reliable fluid connections between all necessary components.
Data Source
AI summary
An integrated flow channel module of an anode subsystem for a dual-stack fuel cell system includes (i) a first side surface configured to be sealed and connected to an end cover of a stack, (ii) multiple groups of channels recessed from the first side surface along the thickness direction of the integrated flow channel module, the multiple groups of channels being configured to be fluidically connected to a first and second ejector of the anode subsystem and a water separation recycling pump to form a first flow path for recycling the fuel discharged from anode outlets of a first and second stack back to anode inlets of the first and second stacks, and (iii) a group of distribution channels formed inside the integrated flow channel module, the group of distribution channels being configured to fluidically connect a fuel source of the anode subsystem to the first and second ejectors to form a second flow path for distributing the fuel from the fuel source between the first and second ejectors. An anode subsystem for a dual-stack fuel cell system including the integrated flow channel module is also disclosed.