Replaceable Hydrogen Cartridge Tapered Connecting Line
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Solution Overview
Problem
The widespread adoption of hydrogen as an energy carrier is hindered by the lack of a practical infrastructure for mobile hydrogen storage, particularly due to safety concerns and the need for high-pressure or low-temperature storage solutions, which complicate the handling and refueling of hydrogen fuel cell vehicles.
Innovation Solution
A replaceable cartridge system with a pressure vessel and valve control unit, featuring a taper in the connecting line to manage pressure safely and efficiently, allowing for modular and scalable hydrogen storage with a compact design and secure, quick connection mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If hydrogen is stored in pressure vessels at high pressures (200 to 700 bar), then energy density is improved, but safety risks worsen due to hydrogen's high flammability and explosive potential
Solution Approach 1:
The system divides hydrogen storage into modular cartridges that can be individually handled and replaced. Each cartridge contains a pressure vessel with a limited amount of hydrogen, segmenting the total storage system into manageable units that reduce the hazard associated with handling large quantities of high-pressure hydrogen at once.
Solution Approach 2:
The cartridge system acts as an intermediary between the hydrogen supply infrastructure and the fuel cell vehicle. The cartridges pre-contained high-pressure hydrogen, transferring the complexity and safety risks of high-pressure storage to replaceable units rather than requiring the vehicle itself to handle extreme pressures during refueling operations.
2Productivity
If a refueling infrastructure is developed for hydrogen vehicles, then productivity is improved, but device complexity worsens due to the need for specialized high-pressure handling equipment and trained personnel
Solution Approach 1:
The refueling infrastructure is segmented into standardized cartridge handling stations rather than requiring complex high-pressure piping and dispensing systems. Each cartridge is a self-contained unit that can be mechanically inserted and secured, simplifying the refueling station design to basic mechanical handling and locking mechanisms.
Solution Approach 2:
The system employs disposable or refillable cartridges that can be mass-produced at low cost. Rather than investing in expensive, complex permanent storage infrastructure, the system uses inexpensive, replaceable cartridges that can be manufactured and distributed through conventional supply chains, reducing the complexity and cost of the overall infrastructure.
3Ease of operation
If the connecting line cross-sectional area is reduced to limit force transmission during cartridge handling, then ease of operation is improved, but fluid flow capability worsens
Solution Approach 1:
The connecting line is segmented into two distinct sections: a narrow section near the connection surface that limits force transmission during handling, and a wider section in the bulk of the line that maintains adequate fluid flow capacity. This segmentation allows the system to simultaneously satisfy both the safety requirement for easy handling and the performance requirement for sufficient hydrogen flow rate.
Data Source
Figure 1
Figure 2a~2b
Figure 3a~3c
AI summary
The present invention relates to a replaceable cartridge (10) for storing a fluid. The cartridge comprises a pressure reservoir (11) for receiving the fluid, a connecting line (12) extending from the pressure reservoir (11) to a first connecting face (10a) on an outer face of the cartridge (10), and a valve system (14), which comprises a first shut-off member (14a) arranged in the connecting line (12). According to the invention, the connecting line (12) narrows (12a) towards the first connecting face (10a). The replaceable cartridge (10) can therefore be used safely and easily. The invention further relates to a cartridge system consisting of at least one cartridge (10) according to the invention and a valve control unit (30), and a method for connecting a cartridge (10) according to the invention to a further cartridge (10').