Connector Assembly Fluid-Driven Wedging Lock Ring
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Solution Overview
Problem
The installation, repair, and replacement of components in mineral extraction systems, such as conduits and pipes, are inefficient due to the use of multiple threaded fasteners or bolts in locking mechanisms.
Innovation Solution
A connector assembly with a lock ring and sliding outer sleeve is used to efficiently join tubular components in mineral extraction systems, utilizing a fluid-driven wedging action to secure the components and maintain a sealed connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple threaded fasteners or bolts are used in locking mechanisms, then the connection strength and reliability are improved, but the installation, repair, and replacement processes become tedious and inefficient
Solution Approach 1:
The locking mechanism is divided into distinct functional segments: the connector body, the lock ring with internal threads, and the sealing elements. This segmentation allows the lock ring to be independently manipulated to secure the conduit, eliminating the need for multiple separate fasteners while maintaining connection strength.
Solution Approach 2:
The patent replaces the traditional mechanical fastening system (multiple bolts and threaded fasteners) with a streamlined threading mechanism where the lock ring engages internal threads directly within the connector body. This substitution reduces the number of mechanical components needed while preserving the structural integrity and reliability of the connection.
2Reliability
If multiple threaded fasteners or bolts are used in locking mechanisms, then the connection reliability is improved, but the number of parts and complexity of the system increases
Solution Approach 1:
The lock ring and sealing mechanism are merged into a single integrated component assembly. The lock ring itself incorporates the sealing function through its interaction with the connector body, eliminating the need for separate sealing elements and fasteners. This merging reduces the total number of parts while maintaining both connection reliability and sealing effectiveness.
Solution Approach 2:
The lock ring serves multiple functions simultaneously: it provides the locking mechanism through internal threading, maintains sealing through its engagement with the connector body, and structurally secures the conduit. This multi-functionality reduces the number of separate components needed while ensuring reliable and sealed connections.
3Productivity
If a simple locking mechanism with fewer parts is used, then the installation and repair efficiency is improved, but the ability to maintain sealed connection in high-pressure environments may be compromised
Solution Approach 1:
The lock ring acts as an intermediary element that mediates between the connector body and the conduit. Through its threaded engagement with the connector body and its positioning relative to the conduit, it ensures both mechanical security and sealing integrity. This intermediary structure allows for simple operation while maintaining reliable sealed connections in high-pressure environments.
Solution Approach 2:
The sealing capability is maintained through precise dimensional parameters and geometric relationships between the lock ring, connector body, and conduit. The threading geometry, engagement depth, and contact surfaces are designed with specific parameters that ensure sealing effectiveness. These parameter optimizations allow the simplified mechanism to achieve the same sealing reliability as more complex systems.
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
This solution simplifies the joining and disjoining of components, reducing the need for multiple fasteners and enhancing operational efficiency by providing a secure, fluid-tight connection in high-pressure environments.
Implementation Method 1
utilizing a fluid-driven wedging action to secure the components and maintain a sealed connection
Data Source
AI summary
A connector assembly configured to join a first tubular member to a second tubular member of a mineral extraction system includes a first annular body, a second annular body, and at least one fastener extending through the first annular body and threadably coupled to the second annular body. A sealed space is defined between the at least one fastener and the first annular body. The connector assembly also includes a lock ring configured to contact the first annular body and the second annular body. A fluid pressure within the sealed space is configured to drive the first annular body and the second annular body toward one another, thereby driving the lock ring radially inwardly to engage the second tubular member.