Reverse-Buckling Rupture Disk With Integral Ring and Laser-Set Weakness
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Solution Overview
Problem
Existing rupture disks for pressurized systems often require multiple components and potential leak paths, which can reduce reliability and increase complexity, and traditional methods for creating lines of weakness are limited in flexibility and effectiveness.
Innovation Solution
A reverse-acting rupture disk with an integral support ring and lines of weakness that can be angled and strategically placed to enhance sealing and rupture performance, potentially eliminating separate components and improving force transmission, using manufacturing techniques like laser ablation for precise weakening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional rupture disks use multiple separate components (disk, support ring, sealing elements), then the device can provide structural support and sealing functions, but the number of potential leak paths increases and reliability decreases
Solution Approach 1:
The patent combines the support ring and rupture disk into a single integral structure, eliminating the need for separate sealing elements and reducing the number of potential leak paths. The support ring is formed as one piece with the rupture disk, creating a unified component that provides both structural support and rupture functionality while minimizing sealing interfaces.
2Manufacturing precision
If traditional lines of weakness are created using mechanical displacement or thinning processes, then material can be removed to create rupture paths, but the precision and flexibility in controlling rupture characteristics are limited
Solution Approach 1:
The patent replaces traditional mechanical displacement or thinning processes with laser ablation technology. The laser ablation process uses focused light energy to precisely remove material and create lines of weakness with controlled depth, width, and orientation. This substitution enables greater precision in defining rupture characteristics while maintaining manufacturing feasibility through automated laser processing.
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 enhances the reliability and efficiency of pressure relief by minimizing components, reducing leak paths, and allowing for more precise control over the rupture mechanism, improving the system's ability to manage overpressure conditions effectively.
Implementation Method 1
using manufacturing techniques like laser ablation for precise weakening
Implementation Method 2
pressure inside the sealed container acts on the safety device to create an opening to release fluid from the system
Data Source
AI summary
This disclosure relates to a rupture disk (400), which may include a flange portion (401), a reverse-buckling dome portion (403), and a transition portion (402) joining the flange portion to the reverse-buckling dome portion. The dome portion may define an apex. The dome portion may further define an indentation (404) at the apex and/or a line of weakness (405), which may be proximate to the transition portion and/or may include a relatively weak segment configured to initiate rupture. An integral stress concentrating feature may be provided. A line of weakness and/or a base of a domed portion may be non-circular. The disclosure also relates to a rupture disk crimped into a holder (410). The disclosure also relates to a container having a wall that defines a rupturable portion.