Rupture Valve Discontinuous Break Line Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As energy storage device capacities increase, conventional rupture valves face challenges in maintaining sufficient gas release area while minimizing material fatigue due to pressure fluctuations and temperature changes, leading to reduced lifespan.
Innovation Solution
A rupture valve design featuring a break line with discontinuous outer edge lines and support portion forming lines, which reduces deformation and fatigue by maintaining strength and durability, allowing for an increased opening area without compromising material integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the rupture valve is made large in size to increase the opening area for gas release, then the gas release area is increased, but the lifetime of the rupture valve becomes shortened due to increased deformation and material fatigue
Solution Approach 1:
The outer edge line is segmented into multiple sections: a first base line and a second base line that are formed discontinuously and extend in a first direction while being spaced apart in a second direction. This segmentation reduces the continuous deformation path and distributes stress, thereby reducing material fatigue while maintaining a large opening area.
Solution Approach 2:
Support portion forming lines are introduced at specific locations (breaking portions of the base lines) to locally reinforce the structure. These support portions extend from one base line toward the other, creating localized strength exactly where needed to reduce deformation during normal pressure fluctuations, while the overall opening area remains large.
2Quantity of substance
If the rupture valve is made large in size to accommodate higher capacity energy storage devices, then the gas release capacity is increased, but the amount of deformation during normal pressure fluctuations is increased leading to increased material fatigue
Solution Approach 1:
By dividing the outer edge line into discontinuous base lines with support portions, the structure allows for larger overall size and opening area while the segmented configuration limits the propagation of deformation, reducing cumulative fatigue damage from repeated pressure cycles.
Solution Approach 2:
Support portion forming lines are pre-configured at strategic locations along the break line. These support portions are formed in advance to provide reinforcement before normal operation begins, preventing excessive deformation during routine pressure fluctuations and extending the rupture valve's service life.
Data Source
AI summary
A rupture valve is formed on a wall of a container and has a break line along which a wall thickness of the rupture valve is decreased. The break line has an outer edge line which defines an outer edge of an opening region and a plurality of division lines which divide the opening region. The outer edge line has: a first base line and a second base line formed discontinuously such that the first base line and the second base line extend in a first direction, and are formed in a spaced-apart manner in a second direction orthogonal to the first direction; a first support portion forming line formed on a breaking portion of the first base line and extending from the first base line toward the second base line; and a second support portion forming line formed on a breaking portion of the second base line.