Foldable Underwater Pipeline Support System
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Solution Overview
Problem
The existing methods for laying underwater pipelines are costly and complex due to the need for preoperative preparations like flattening ridges and filling depressions, and require arranging supports which complicate the process and increase stress on the pipeline.
Innovation Solution
A foldable support system for underwater pipelines that can be easily launched and deployed, featuring adjustable legs with a gripping mechanism, sensors for load distribution, and a stop device to prevent accidental bending, allowing the pipeline to be elevated and supported efficiently across varying seabed profiles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional support systems are used for underwater pipelines, then the pipeline can be supported on the seabed, but the support arrangement complicates the laying operations and increases costs
Solution Approach 1:
The support system is divided into multiple independent legs that can be selectively deployed. Each leg can be independently positioned and adjusted, allowing the pipeline to be supported at multiple points along its length without requiring a complex continuous support structure.
Solution Approach 2:
The support system transitions from a static pre-installed structure to a dynamic deployable system. The legs can be folded during pipeline laying operations and then extended to provide support after the pipeline is in position, reducing complexity during the critical laying phase.
2Productivity
If preoperative seabed modifications are performed to flatten ridges and fill depressions, then the pipeline path can be optimized, but the operations become costly and time-consuming
Solution Approach 1:
Instead of modifying the seabed in advance, the support system is designed to adapt to the existing seabed topography. The adjustable legs can be positioned to compensate for ridges and depressions without requiring preoperative modification work.
Solution Approach 2:
The support system uses adjustable leg lengths and positioning to change its geometric parameters, allowing it to accommodate varying seabed conditions. This flexibility eliminates the need for standardized seabed preparation while maintaining optimal pipeline support.
3Strength
If multiple supports are arranged along the pipeline path, then the span length is reduced and stress on the pipeline is decreased, but the laying operations are significantly complicated
Solution Approach 1:
The support system employs legs that can be rapidly deployed and adjusted after pipeline placement. This dynamic capability allows multiple support points to be established without complicate the laying process, as the supports are installed after rather than during pipeline placement.
Solution Approach 2:
The support system is designed to be self-installing through a launching mechanism that deploys the legs automatically or with minimal intervention after the pipeline is in position. This self-service capability reduces the need for complex manual assembly operations.
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 system reduces the complexity and cost of pipeline laying by allowing simultaneous pipeline and support deployment, optimizing stress distribution and reducing the need for preoperative seabed modifications, thereby saving time and enhancing operational efficiency.
Implementation Method 1
at least two legs, which are hinged to the connecting frame about second axes, and movable between a contracted configuration and an extended configuration in which they extend crosswise to the pipeline to rest on the bed of the body of water
Data Source
AI summary
A support for an underwater pipeline, in particular configured to elevate an underwater pipeline on a bed of a body of water, with a connecting frame configured to fit to a portion of underwater pipeline extending along a longitudinal axis; and at least two legs, which are hinged to the connecting frame, and movable between a contracted configuration and an extended configuration in which they extend crosswise to the underwater pipeline to rest on the bed of the body of water.