Underwater Pipe Coupling Alignment for Diverless Flange Joining
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Solution Overview
Problem
Current methods for joining underwater pipeline sections are time-consuming, costly, and lack precision, often requiring divers and being unsuitable for use with unmanned underwater vehicles due to flange configurations designed for diver operations.
Innovation Solution
An apparatus comprising a frame, alignment device, and locking device connectable to an unmanned underwater vehicle, allowing for precise alignment and locking of pipe sections without the need for a bearing base, enabling automated junctions in narrow spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If divers are used to carry out junction operations, then the operation can be performed with existing pipeline flanges, but the operation becomes extremely time and cost consuming and puts diver health at risk
Solution Approach 1:
The patent introduces an intermediary device (the coupling apparatus with adapter) that mediates between the existing diver-operated flange configuration and the unmanned vehicle operation requirements. The adapter allows the unmanned vehicle to interface with and manipulate flanges designed for diver operations, resolving the incompatibility while enabling automated, time-efficient junctions.
Solution Approach 2:
The patent replaces the manual mechanical system of diver operations with an automated mechanical system operated by unmanned underwater vehicles. The coupling apparatus provides automated alignment, positioning, and flange manipulation, eliminating the need for divers to physically handle the heavy flange components and perform manual alignment procedures.
2Adaptability or versatility
If flanges are designed for diver operations, then the existing pipeline infrastructure can be used, but the flanges are not suitable to be operated by unmanned underwater vehicles
Solution Approach 1:
The adapter serves as an intermediary component that bridges the gap between diver-designed flanges and unmanned vehicle operational capabilities. It provides the necessary interface mechanisms (such as gripping surfaces, alignment features, and actuation points) that enable unmanned vehicles to operate flanges originally designed for manual diver manipulation.
Solution Approach 2:
The coupling apparatus is designed with universal functionality to handle various flange configurations. The adapter can accommodate different flange types and sizes while providing standardized interfaces for unmanned vehicle operations, making the system versatile enough to work with existing pipeline infrastructure regardless of the specific flange design.
3Manufacturing precision
If the apparatus requires considerable spaces around the flanges, then the alignment and locking operations can be performed with wide tolerances, but the apparatus cannot operate in narrow spaces
Solution Approach 1:
The patent transitions from a two-dimensional alignment approach (requiring lateral space for adjustment) to a three-dimensional approach where the alignment device inserts through the pipe axis. This allows precise alignment to be achieved along the longitudinal axis while minimizing requirements for lateral clearance, enabling operation in narrow spaces.
Solution Approach 2:
The alignment device is designed to be inserted within the pipe structure itself, nesting the alignment mechanism inside the pipe rather than requiring external space. The device passes through the pipe wall and engages with internal features, allowing alignment operations to be performed from within the confined space of the pipe interior.
4Ease of manufacture
If the apparatus uses a bearing base and operates with wide tolerances, then the flanges can be joined through deformation, but the operation lacks precision and repeatability
Solution Approach 1:
The patent replaces the deformation-based mechanical joining system with a precision positioning and controlled fastening system. The alignment device provides precise positioning through mechanical constraints and guided movement, while the locking mechanism applies controlled forces to secure the joint without relying on plastic deformation, thereby achieving both precision and repeatability.
Solution Approach 2:
The apparatus incorporates feedback mechanisms through its alignment and locking systems. Sensors and mechanical feedback elements monitor the alignment status and joint formation process, allowing real-time adjustments to be made. This feedback ensures that the joining operation achieves the desired precision and repeatability by detecting and correcting deviations from the target configuration.
Data Source
AI summary
An apparatus for coupling pipe sections into a body of water has a frame comprising an elongated portion, which extends along a longitudinal axis and is configured to be arranged within a first pipe section; an alignment device, which is supported by the elongated portion of the frame and is configured to be at least partially inserted inside a second pipe section so as to align the first pipe section with the second pipe section; and a locking device, which is supported by the elongated portion of the frame and is configured to lock the position of the first pipe section with respect to the second pipe section when the first pipe section is aligned with the second pipe section.