Pipe Coupling Hub and Clamping Ring for Seal Alignment
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Solution Overview
Problem
Conventional pipe coupling methods face challenges in achieving a strong, leak-proof seal due to difficulties in locating and securing seals within clamping rings, which can lead to seal misalignment and damage, especially when using designs with internal cavities or radial compression.
Innovation Solution
A system comprising tubular hubs with radially extending mounting blocks and a clamping ring with positioning lips that guide into annular grooves, ensuring proper seal placement and compression, using a seal that fits snugly between the hubs and is compressed by the clamping ring to form a fluid-tight connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamping ring with internal cavity is used to contain the seal, then the seal is protected from external damage, but the seal can move longitudinally out of position and may be damaged when compressed between the clamping segments and the pipe
Solution Approach 1:
The seal groove is pre-formed on the pipe end surface before the clamping ring is installed. This preliminary preparation ensures that when the seal is placed in the groove and the clamping ring is secured, the seal is automatically positioned correctly without risk of longitudinal movement or misalignment during compression
Solution Approach 2:
The seal is extracted from the internal cavity of the clamping ring and placed directly into a groove on the pipe end surface. This removes the seal from the problematic internal cavity environment where it could move or be damaged, while still providing protection through the clamping ring structure
2Strength
If rings are used to hold pipe ends together within the coupling interior, then the pipes are securely connected, but the surfaces to be mated for coupling are hidden within the interior rendering connection difficult
Solution Approach 1:
Instead of placing the sealing and connection surfaces inside the coupling interior where they are hidden, the seal groove is formed on the external end surface of the pipe. This inversion makes the critical coupling surfaces visible and accessible during assembly, while the clamping ring provides the secure connection from the outside
3Reliability
If welding is used to connect pipe segments, then a strong liquid impervious seal is achieved, but a significant level of welder skill is required
Solution Approach 1:
The complex welding process is replaced with a mechanical connection system consisting of a clamping ring that compresses a seal against a groove on the pipe end. This mechanical system achieves liquid-tight sealing without requiring welder skill, specialized equipment, or complex procedures
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 system ensures a reliable, leak-proof connection by maintaining seal integrity and preventing damage, facilitating easy assembly with visual guidance for proper spacing, thus enhancing the durability and efficiency of pipeline construction.
Implementation Method 1
a clamping ring sized to extend around the tubular hub, said clamping ring having a radially extending positioning lip at each end of wherein the positioning lips surround the mounting blocks
Implementation Method 2
a clamping ring with positioning lips that guide into annular grooves, ensuring proper seal placement and compression
Implementation Method 3
a seal that fits snugly between the hubs and is compressed by the clamping ring to form a fluid-tight connection
Data Source
AI summary
A system for coupling pipe segments endwise to each other comprise a tubular hub secured proximate to an end face of each pipe segment, each hub having a radially extending mounting block therearound, a seal extending around the hubs between the mounting blocks and a clamping ring sized to extend around the tubular hub, said clamping ring having a radially extending positioning lip at each end of wherein the positioning lips surround the mounting blocks.