Variable-Draught Barge Flood Valve for Precise Load Transfer
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Solution Overview
Problem
Current methods for transferring platform modules from barges to supporting structures in water are hindered by uncontrollable vertical movement of the barge, leading to connection issues, potential damage, and slow emergency response, especially in unpredictable water conditions.
Innovation Solution
A variable-draught barge system with selectively floodable chambers and a control device to rapidly alter draught by opening a large-diameter flood valve below the water line, combined with a pump system to transfer water between chambers, allowing for quick and precise load transfer while maintaining stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a known mooring system is used to limit horizontal movement of the barge, then horizontal stability is improved, but vertical movement remains uncontrollable leading to connection difficulties and potential damage
Solution Approach 1:
The ballast system is divided into multiple independent chambers (first chamber and second chamber) that can be controlled separately. The first chamber handles rapid flooding for emergency responses, while the second chamber provides controlled ballast adjustment, enabling both fast reaction and precise positioning during connection operations
Solution Approach 2:
The barge is equipped with pre-positioned floodable chambers and ballast systems that can be activated immediately when needed. The chambers are designed with flood valves and pumps ready for rapid operation, allowing the barge to respond preemptively to unexpected movements or emergencies before connection operations are affected
2Manufacturing precision
If the barge draught is adjusted slowly using conventional ballast systems, then precision is improved, but the time taken to connect the load increases leading to higher collision risk
Solution Approach 1:
The ballast system transitions from static, slow-adjustment conventional systems to a dynamic dual-chamber system. The first chamber enables rapid draught changes for emergency responses, while the second chamber provides controlled adjustment for precise positioning, allowing the system to adapt its response speed to the operational requirements
Solution Approach 2:
The system changes the operational parameters of ballast adjustment by introducing two distinct chambers with different functions. The first chamber allows rapid parameter change (draught adjustment) for emergencies, while the second chamber enables fine-tuned parameter control for precise connection operations, effectively decoupling speed and precision requirements
3Reliability
If a pump system alone is used to alter draught, then reliability is improved, but the system becomes slower and more complex
Solution Approach 1:
The system merges two different ballast mechanisms into one integrated system: flood valves for rapid water intake and pumps for controlled water transfer. This combination allows the barge to achieve both fast emergency responses and reliable controlled adjustment, leveraging the strengths of each mechanism while compensating for their individual limitations
Solution Approach 2:
The second chamber acts as an intermediary between the rapid flooding system and the final draught adjustment requirement. Water is first rapidly introduced into the first chamber, then gradually transferred to the second chamber via pumps, providing a buffer that smooths out the rapid change while maintaining the ability to respond quickly when needed
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
The system enables fast and precise connection of loads to supporting structures, reducing the risk of collision and damage, while being cheaper and simpler than existing solutions, with the ability to rapidly adjust draught for emergency situations.
Implementation Method 1
at least one flood valve located below the water line to flood the first chamber
Implementation Method 2
at least one pump to transfer water from the first chamber to the second chamber
Implementation Method 3
at least one first chamber located in the hull and selectively floodable to alter the draught of the barge
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
A variable-draught barge for transferring loads in a body of water, and having a water line (L) which is a function of the draught; the barge (2) having : - a hull (18a); - an underbody (18b); - at least one first chamber (33) located in the hull and floodable selectively to alter the draught of the barge (2); - at least one flood valve (36) located below the water line (L) to flood the first chamber (33); and - a control device designed to selectively open the flood valve (36) to flood the first chamber (33).