Compressible Rupture Disk Flange for Tight Sealing
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Solution Overview
Problem
Existing rupture disks face challenges in forming a tight seal during installation without damaging the membrane, and often require lubricants to prevent leakage, which is not always effective.
Innovation Solution
A rupture disk design featuring a compressible flange with perimetrically extending voids allows for significant expansion parallel to the disk, increasing contact force and forming a tight seal, enabling easy installation with minimal lubricant use and reduced risk of membrane damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rupture disk is installed within a housing to form a tight seal, then sealing reliability is improved, but the risk of damaging the membrane during installation increases
Solution Approach 1:
The flange is pre-compressed before the rupture disk is fully installed in the housing, allowing the seal to be formed under controlled conditions before the disk is subjected to full operational pressure and potential damage risks
Solution Approach 2:
The compressibility of the flange material is utilized to change its dimensional parameters under compression, allowing it to expand radially and form a tight seal against the housing wall without requiring excessive installation force that could damage the membrane
2Ease of operation
If lubricant is applied to improve sealing and reduce damage risk, then ease of installation is improved, but the complexity of the installation process increases
Solution Approach 1:
The flange is designed to self-compress and self-seal through its inherent compressibility and the applied compression force, eliminating the need for external lubricants or additional sealing components and simplifying the installation process
3Reliability
If the flange is made compressible with voids to enable expansion, then sealing capability is improved, but the structural strength of the flange decreases
Solution Approach 1:
The flange is designed with voids in specific local regions to enable compression and expansion, while maintaining sufficient solid material in other areas to preserve overall structural strength and load-bearing capability
Solution Approach 2:
The flange combines void spaces with solid compressible material to create a composite structure that exhibits both compliance for sealing and sufficient strength for structural support
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 design facilitates quick and secure installation of the rupture disk within a housing, forming a reliable seal without the need for extensive lubrication, while allowing for efficient venting of pressurized fluid when the disk ruptures.
Implementation Method 1
such compression may increase the contact force between the flange and a housing for the rupture disk
Implementation Method 2
The provision of such a void within the flange of the rupture disk can allow significant expansion of the flange to be achieved parallel to the disk when the flange is compressed perpendicularly to the disk
Data Source
AI summary
A rupture disk for use in a fluid control system includes a membrane and a compressible flange, around a perimeter of the membrane. The flange defines at least one perimetrically extending void.