High Pressure Gas Container Ventilation Design
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Solution Overview
Problem
High-pressure gas containers face strength reduction issues due to openings for gas discharge, particularly when the reinforcing layer is formed by impregnating fiber materials with resin, leading to delamination and reduced strength.
Innovation Solution
A high-pressure gas container design featuring a gas ventilation part between the inner and outer layers, with gas discharge ports between the boss parts and outer layer, allowing gas permeation through the inner layer to be discharged without permeating through the outer layer, which has a higher gas barrier property, thus maintaining the strength of the outer layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If openings are provided over the entire reinforcing layer to discharge remaining gas, then gas discharge function is improved, but the strength of the reinforcing layer is reduced
Solution Approach 1:
The gas discharge function is segmented to specific locations (boss parts) rather than distributed across the entire reinforcing layer. This allows gas discharge at targeted points while preserving the integrity and strength of the rest of the reinforcing layer.
Solution Approach 2:
The reinforcing layer is designed with local quality variations: areas around boss parts have gas discharge ports, while other areas maintain full reinforcement strength. This localized approach allows gas discharge functionality where needed without compromising overall structural integrity.
2Stability of the object's composition
If the reinforcing layer is formed by impregnating fiber material with resin, then structural integrity is improved, but delamination is induced by providing openings
Solution Approach 1:
The resin impregnation and opening provision are applied locally around boss parts rather than uniformly across the entire reinforcing layer. This localized treatment maintains strong resin-fiber bonding in critical areas while providing gas discharge functionality where openings are needed.
Solution Approach 2:
The reinforcing layer is segmented into areas with different properties: regions around boss parts contain gas discharge ports with modified resin-fiber structure, while other regions maintain uniform high-strength resin impregnation without openings.
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
Effectively discharges permeated gas to the outside without reducing the strength of the outer layer, ensuring the gas container's integrity and functionality.
Implementation Method 1
The stored gas may permeate through the inner layer liner according to permeation ability determined by factors such as the size of molecules of stored gas components
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
A high-pressure gas container (100) includes an inner layer (11) configured such that high-pressure gas is filled inside, a boss part (13-1, 13-2) provided at least at one position of the inner layer and configured to cause the gas to flow in and out, and an outer layer (12) configured to cover an outer periphery of the inner layer to reinforce the inner layer and having a higher gas barrier property than the inner layer. A gas discharge port (15-1, 15-2) is provided between the boss part and the outer layer, and a gas ventilation part (14) is formed between the inner layer and the outer layer such that the gas having permeated through the inner layer is discharged into atmosphere through the gas discharge port.