Marine Raw Water Flushing with a Hydrostatic Lock
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing marine vessel raw water systems suffer from corrosion and mineral scale deposits due to the use of salt water, which are difficult to flush effectively, especially in complex inboard systems, leading to frequent component replacements and maintenance challenges.
Innovation Solution
A system and method that controllably connects a marine vessel's native fresh water network to its raw water network using a hydrostatic lock, ensuring water flows only from fresh to raw, utilizing a system controller to automate the flushing process, and includes a swing gate valve and check valve to manage flow direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If salt water is used in the raw water system for marine vessel cooling, then the system can operate in marine environments, but corrosion and mineral scale deposits occur leading to frequent maintenance
Solution Approach 1:
The system performs preliminary flushing action by introducing fresh water into the raw water system before salt water causes extensive corrosion and scale buildup. The hydrostatic lock enables automatic flushing when fresh water becomes available, preventing harmful effects rather than addressing them after they occur.
Solution Approach 2:
The hydrostatic lock acts as an intermediary device between the fresh water and salt water systems. It selectively allows fresh water to enter the salt water system for flushing while preventing salt water from contaminating the fresh water system, thus mediating the interaction between two incompatible fluids.
2Reliability
If fresh water is introduced into the raw water system to flush corrosion and deposits, then component longevity improves, but risk of contaminating the fresh water network increases
Solution Approach 1:
The hydrostatic lock serves as a protective intermediary that allows controlled interaction between fresh and salt water systems. It permits fresh water to flow into the salt water system for flushing while maintaining a physical barrier that prevents salt water from entering the fresh water system, thus eliminating contamination risk.
Solution Approach 2:
The system is segmented into separate fresh water and salt water networks connected only through the hydrostatic lock interface. This segmentation allows independent operation and protection of each system while enabling controlled interaction when needed for flushing.
3Ease of manufacture
If manual flushing systems are used in complex inboard systems, then some corrosion relief is achieved, but effective flushing of all system portions is difficult
Solution Approach 1:
The system performs self-service flushing by utilizing the vessel's existing fresh water network and hydrostatic lock mechanism to automatically flush the salt water system. The system configures itself to route fresh water through the salt water system when fresh water becomes available, eliminating the need for manual intervention or external flushing equipment.
Solution Approach 2:
The hydrostatic lock serves multiple functions: it acts as a one-way valve, a flow controller, and a system connector. It enables the fresh water system to serve dual purposes of both potable water supply and salt water system flushing, maximizing the utility of existing system components.
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
Effectively flushes the raw water system with fresh water, reducing corrosion and scale deposits, minimizing maintenance, and ensuring safe operation without risking contamination of the fresh water network.
Implementation Method 1
A hydrostatic lock—which ensures that water can only flow in the direction from the fresh water network to the raw water network and never in the opposite direction
Implementation Method 2
A system controller directs the fresh water flush cycle and other operations
Data Source
AI summary
A system and method for controllably connecting a marine vessel's native fresh water network to its raw water network in order to flush the raw water network. The controllable connection is provided by a hydrostatic lock—which ensures that water can only flow in the direction from the fresh water network to the raw water network and never in the opposite direction. A system controller directs the fresh water flush cycle and other operations.