Pipe Coupling Grip Member with Protrusions for High-Pressure Sealing
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Solution Overview
Problem
Existing pipe coupling seals fail to effectively seal leaks in high-pressure pipelines due to lack of internal space and inability to withstand radial and axial forces, leading to seal failure and fluid leakage.
Innovation Solution
A pipe coupling encapsulation assembly featuring a grip member with radially inner and outer bends, pipe interface members with protrusions, and apertures, which dig into the pipe surface to resist fluid forces, combined with elastomeric seals and clamp members for secure tightening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If prior art seals are used externally over existing couplings, then seal application is simplified, but the seals lack internal space and fail to withstand radial and axial forces
Solution Approach 1:
The grip member is divided into multiple pipe interface members with protrusions that can independently engage with the pipe surface, allowing the seal to adapt to the pipe geometry while maintaining structural integrity under radial and axial forces
Solution Approach 2:
The seal assembly combines elastomeric material for the grip member with protrusions that dig into the pipe surface, creating a composite structure that provides both flexibility for application and rigidity for withstanding high-pressure forces
2Stress or pressure
If seal lips are pushed outwards by high-pressure fluid, then seal deformation occurs, but complete seal failure results
Solution Approach 1:
The protrusions on the pipe interface members preliminarily engage with the pipe surface to create anchoring points that resist the outward push of high-pressure fluid, preventing seal lip deformation before it can lead to complete seal failure
Solution Approach 2:
The radially inner and outer bends of the grip member create a curved, flexible structure that can accommodate pressure-induced deformations while maintaining sealing contact, allowing the seal to flex rather than fail under high-pressure conditions
3Force
If clamp members are tightened to secure the seal, then sealing force increases, but the grip member requires embedding space within the elastomeric seal
Solution Approach 1:
The grip member is configured to extend in multiple dimensions within the elastomeric seal, with radially inner and outer bends that allow it to occupy三维 space efficiently, providing adequate embedding volume while maintaining the necessary sealing force through clamp member tightening
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 assembly provides a reliable seal that withstands radial and axial forces, preventing leakage in high-pressure pipelines without interrupting fluid flow, by embedding the grip member within the elastomeric seal and using protrusions to resist fluid forces.
Implementation Method 1
protrusions capable of digging into an outer surface of a pipe being sealed
Implementation Method 2
the pipe interface members and the protrusions are located at radially inward surfaces of the inner bends
Implementation Method 3
a repair coupling including an elastomeric seal
Data Source
AI summary
A pipe coupling encapsulation assembly includes a repair coupling including an elastomeric seal, clamp members and one or more tightening elements for tightening the clamp members towards each other, and a grip member assembled in the repair coupling. The grip member is formed into an at least partially circumferential band. The band includes a plurality of pipe interface members with protrusions capable of digging into an outer surface of a pipe being sealed. The grip member includes a plurality of radially inner and radially outer bends. The pipe interface members and the protrusions are located at radially inward surfaces of the inner bends.