Stabilizing Ring Joint Flange Assembly for High-Pressure Sealing
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Solution Overview
Problem
Conventional flanges fail to maintain a seal in harsh environments, such as high-temperature molten salt reactor systems, due to gaps created by softer materials compressing unevenly under bending moments, leading to leaks and structural failures.
Innovation Solution
A stabilizing flange assembly with a ring groove and gasket configuration that uniformly distributes compressive load, preventing deformation and maintaining a fluid-tight connection even under rotational and lateral loads, using materials like stainless steel and incorporating features like trapezoidal ring grooves for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional flanges compress softer material between flanges to establish connection, then fluid connection is established, but gaps remain between flange faces causing leakage under bending moments
Solution Approach 1:
The flange face is segmented into multiple contact regions through protrusions and corresponding recesses. This segmentation allows the sealing function to be distributed across multiple discrete contact points rather than relying on a continuous face contact, thereby maintaining seal integrity while accommodating the softer material compression without creating harmful gaps.
Solution Approach 2:
The protrusions and recesses act as intermediary structures that mediate between the flange faces and the softer sealing material. These features provide dedicated contact zones that transfer compressive loads directly to the sealing material without creating gaps between the flange faces themselves, thus improving reliability without significantly increasing overall structural complexity.
2Reliability
If softer material is used for sealing between flanges, then sealing capability is improved, but nonuniform compression under bending moment causes cracking and leaks
Solution Approach 1:
The flange design incorporates local quality variations through strategically positioned protrusions and recesses. These features concentrate the compressive load at specific localized regions where the softer sealing material contacts the flange face, ensuring uniform compression distribution. This prevents stress concentration and cracking that would otherwise occur under bending moments, thereby maintaining both sealing capability and structural strength.
Solution Approach 2:
The protrusions and recesses are pre-configured to establish optimal contact geometry before the flanges are subjected to operational loads including bending moments. This preliminary structural arrangement ensures that when compression is applied, the softer sealing material is uniformly compressed from the outset, preventing nonuniform deformation and cracking that would compromise both sealing and structural integrity.
3Temperature
If flanges are designed for high temperature environments like molten salt reactors, then temperature resistance is improved, but conventional flange structures fail to maintain seal under thermal and mechanical loads
Solution Approach 1:
The flange design incorporates specific geometric parameters including protrusion height, recess depth, and contact surface area ratios that are optimized for high temperature environments. These parameter changes ensure that under thermal expansion and contraction conditions typical of molten salt reactor operations, the protrusions and recesses maintain adequate contact pressure on the sealing material, preventing seal failure while withstanding the combined thermal and mechanical loads.
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 stabilizing flange assembly ensures a reliable, leak-proof connection at high temperatures and pressures, resisting deformation and maintaining seal integrity despite external forces, suitable for applications like molten salt reactor systems.
Implementation Method 1
The gasket and the mating surface of the first flange cooperate to define a fluid tight connection between the fluid opening and the second flange
Data Source
AI summary
In various embodiments, the stabilizing face ring joint flange and assemblies thereof can be adapted to include a ring joint gasket and resist leaks when a fluid flowing through a pipe at high temperatures and pressures. The stabilizing face ring joint flange assembly with the ring grooves in each flange can be situated in such a way that once full compression is achieved on the ring groove by the gasket, raised faces of the two flanges can meet to ensure that the rotation of the pump or any potential perpendicular loading do not provide a stress on the gasket that would cause the gasket to deform or cause a seal to be lost.