Weld-Free Pipe Connector for Preserving Internal Diameter
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Solution Overview
Problem
In oil and gas production, refining, and distribution, the existing methods of connecting pipe ends, such as welding or butt fusion, pose challenges due to varying pipe specifications, corrosion issues, and potential damage to protective linings. Additionally, these methods can alter the internal diameter of pipes, affecting fluid flow properties.
Innovation Solution
A pipe connector system that includes a tubular conduit with a seal element designed to securely engage and seal pipe ends without the need for welding or fusion. This system is adaptable to various pipe specifications, including ASME and EN standards, and is suitable for both metal and plastic pipes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding or fusion methods are used to connect pipe ends, then strong joint strength is achieved, but the internal diameter of pipes is altered and protective linings are damaged
Solution Approach 1:
The patent introduces a connector as an intermediary component that couples two pipe ends together without direct welding or fusion. The connector includes a body with first and second coupling mechanisms that receive pipe ends, allowing mechanical connection while preserving the original pipe internal diameters and protecting corrosive-resistant linings from thermal damage.
2Reliability
If welding operations are performed from the outside with full penetration, then reliable pipe connection is achieved, but complex pipe edge preparation is required
Solution Approach 1:
The connector serves as a mediator that eliminates the need for complex edge preparation. The coupling mechanisms within the connector body can accommodate various pipe end configurations without requiring beveling, facing, or grooving, thereby simplifying manufacturing while maintaining connection reliability through the mechanical coupling design.
3Strength
If butt fusion is used to join pipe ends, then strong connection is achieved, but the annular protuberance distorts the internal pipe surface and decreases inner diameter
Solution Approach 1:
The connector acts as an intermediary that avoids the butt fusion process entirely. By using separate coupling mechanisms that receive pipe ends individually, the connector eliminates the formation of annular protrusions that would otherwise distort the internal pipe surface and reduce the effective flow area, thereby maintaining optimal fluid flow capacity.
Data Source
AI summary
Pipe connectors and methods of making and using pipe connectors to connect oil or gas pipe in oil and gas production, refining and distribution.