Rotatable Platform Pipe-Laying Ship for Deep Water Adaptability
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Solution Overview
Problem
Current S-lay pipe-laying ships are limited in their ability to efficiently lay pipelines in deep waters due to structural rigidity and stability issues, and are not adaptable for varying water depths.
Innovation Solution
A pipe-laying ship with a rotatable platform and integrally connected stinger, equipped with a lift actuator to adjust the platform's inclination, allowing for both horizontal and inclined pipe-laying paths, enabling pipeline laying in shallow and deep waters without plastic deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the stinger length is increased to support pipeline weight in deep waters, then the pipeline can be laid in deep waters, but structural rigidity and stability deteriorate
Solution Approach 1:
The platform is made rotatable around one end, allowing dynamic adjustment of the pipe-laying path inclination angle. This enables the system to adapt to different water depths without requiring a longer stinger, maintaining structural stability while achieving deep water capability.
Solution Approach 2:
The inclination angle of the pipe-laying path is changed by rotating the platform. By adjusting this geometric parameter, the system can lay pipelines in both shallow and deep waters using the same stinger length, resolving the contradiction between water depth adaptability and structural stability.
2Adaptability or versatility
If the platform inclination is adjusted for deep water laying, then deep water pipeline laying is enabled, but the pipe-laying path geometry changes
Solution Approach 1:
The platform's rotatable design allows it to dynamically change inclination angle based on water depth requirements. This single dynamic mechanism replaces the need for multiple fixed configuration platforms, reducing overall system complexity while maintaining versatility.
Data Source
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AI summary
Provided are a pipe-laying ship and a method of laying a pipeline using the same. The pipe-laying ship includes: a platform which is installed along a pipe-laying path of a pipeline and on which one or more work stations for assembling the pipeline are placed, a stinger that is connected adjacent to one end of the platform and guides the pipeline to a seabed, and a lift actuator that adjusts an inclination of the platform.