Marine Raw Water Flushing With a Hydrostatic Backflow Lock
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Solution Overview
Problem
Existing marine vessels face challenges in effectively flushing their raw water systems with fresh water due to the corrosive nature of salt water, leading to frequent component replacement and maintenance issues, especially when dock access is limited or not feasible.
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 one-way flow from fresh water to raw water, facilitated by a hydrostatic lock and a swing gate valve, to flush the raw water system while the engines are running.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual dockside flushing is used, then fresh water can be supplied to flush the raw water system, but the vessel requires dock access which limits operational flexibility
Solution Approach 1:
The system enables the vessel to perform its own flushing operation using onboard fresh water tanks and pumping systems, eliminating the need for external dockside facilities. The self-contained nature allows flushing to be conducted anywhere the vessel can operate.
Solution Approach 2:
The flushing system is divided into separate functional components: fresh water tanks, pumping systems, distribution networks, and control mechanisms. This segmentation allows the system to operate independently without requiring external infrastructure.
2Productivity
If the fresh water network is directly connected to the raw water network, then flushing can be performed, but salt water can contaminate the fresh water system
Solution Approach 1:
A one-way valve system acts as an intermediary between the fresh water and raw water networks. This intermediary allows fresh water to flow into the raw water system for flushing while preventing any backflow that could contaminate the fresh water supply.
Solution Approach 2:
The system uses hydraulic pressure differentials and one-way valve mechanisms to control water flow direction. The pressure-based control ensures automatic prevention of reverse flow without requiring complex mechanical intervention.
3Ease of manufacture
If traditional manual flushing procedures are used, then the raw water system can be flushed, but extensive manual intervention and monitoring are required
Solution Approach 1:
The system incorporates sensors and control mechanisms that monitor flushing progress, water flow rates, and system pressure. This feedback enables automatic adjustment of flushing parameters and termination when flushing is complete, reducing manual intervention.
Solution Approach 2:
The system pre-configures flushing routes, activates necessary pumps and valves automatically, and prepares the flushing network before the actual flushing operation begins. This preliminary automation simplifies the user's task to simply initiating the process.
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 mineral deposits, minimizing maintenance, and ensuring safe operation without the need for dockside freshwater sources.
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
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.