Liner Coupling Assembly With Elastomeric Barrier Ring
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Solution Overview
Problem
Existing coupling systems for lined pipes in corrosive environments require custom modifications and are ineffective at preventing liner movement and grout exposure, leading to corrosion issues at high pressures and temperatures.
Innovation Solution
A liner coupling assembly featuring ring members with flanges and a corrosion barrier ring, made of glass-reinforced epoxy and elastomeric materials, which secures liners within pipes without special thread modifications, preventing liner movement and grout exposure through a compressible seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If custom modifications and special threading are used to accommodate internal lining systems, then the liner can be installed in proprietary pipe ends, but the manufacturing time and cost increase significantly
Solution Approach 1:
The coupling assembly is designed with a universal interface that can accommodate multiple pipe end constructions and thread types without requiring custom modifications. The internal lining system uses a standardized coupling design that works with various pipe manufacturers' proprietary ends, eliminating the need for special threading or custom-built components for each pipe type.
2Reliability
If rigid plastic liners are used in high pressure environments, then corrosion protection is provided, but the liners move or shift causing grout exposure and eventual corrosion
Solution Approach 1:
The coupling assembly incorporates a flexible elastomeric barrier ring that compresses against the liner to secure it in position. This flexible element prevents liner movement or shifting under high pressure while maintaining the corrosion barrier integrity, eliminating grout exposure issues.
Solution Approach 2:
The system uses a compressible elastomeric material that changes its physical state from uncompressed to compressed, allowing it to adapt to the liner and secure it firmly. The compression of the elastomeric barrier ring creates a stable connection that prevents liner movement while maintaining corrosion protection.
3Reliability
If flared ends with compression barrier rings are used to terminate liners, then a sealing surface is provided, but the assembly requires special machining and threading provisions
Solution Approach 1:
The coupling assembly provides a universal sealing mechanism that works with various pipe end constructions without requiring special flared ends or custom threading. The elastomeric barrier ring creates a reliable seal through compression, eliminating the need for complex flaring operations while maintaining sealing capability.
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 provides a standardized coupling system that prevents corrosion and maintains the integrity of the grout or mortar, accommodating various pipe end constructions and withstanding high pressures and temperatures without the need for custom machining.
Implementation Method 1
a compressible seal
Data Source
AI summary
A liner assembly including a first ring member, a second ring member, a corrosion barrier ring, a first liner and a second liner. The first ring member has a body member with a first end and a second end. The first end has a first flange and a second flange extending therefrom. The first flange and the second flange define a space therebetween. The second ring member has an extended body member having a first end and a second end. The second end has a first flange and a second flange extending therefrom. The first flange and the second flange define a space therebetween. The corrosion barrier ring is disposed between and cooperates with the first end of the first ring member and the second end of the second ring member. The first liner is configured to be secured in the space formed between the first flange and the second flange of the first ring member. The second liner is configured to be secured in the space formed between the first flange and the second flange of the second ring member.