Ship Cooling Device Cartridge Filtration Bypass
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Solution Overview
Problem
Existing cooling devices for ship propulsion systems fail to effectively collect and remove microplastics and other fine environmental contaminants from cooling water, leading to environmental pollution and potential clogging issues, which can degrade power performance and require complex maintenance.
Innovation Solution
A cooling device with a cartridge-type filtration system is integrated into the cooling water route, featuring a two-layer filter structure and a bypass conduit line with a valve unit, allowing for efficient capture of microplastics and other contaminants without sacrificing power performance, and enabling easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a strainer with finer mesh is provided to capture fine foreign matters, then the filtration performance is improved, but the device complexity and clogging risk increase
Solution Approach 1:
The filtration system is segmented into two distinct stages: a strainer for large foreign matters and a filter for fine foreign matters. This segmentation allows each component to be optimized for its specific function, with the strainer handling coarse debris and the filter capturing fine particles like microplastics, thereby achieving high filtration performance without excessive complexity in a single component.
Solution Approach 2:
The patent introduces an intermediary bypass passage that connects the strainer outlet to the filter inlet. This intermediary pathway allows fine foreign matters to be directed to the filter after passing through the strainer, enabling the system to capture fine particles without requiring the strainer itself to have an excessively fine mesh that would cause clogging.
2Object-affected harmful factors
If a filter is provided in the cooling water passage to remove foreign matters, then the environmental contamination is reduced, but the cooling performance deteriorates due to clogging
Solution Approach 1:
The bypass passage acts as an intermediary pathway that provides an alternative route for cooling water when the filter becomes clogged. This ensures that the cooling function is maintained through the bypass while the filter continues to capture fine foreign matters from the cooling water, thus reducing environmental contamination without permanently sacrificing cooling performance.
Solution Approach 2:
The system allows for the discarding of filtered foreign matters through the bypass passage while maintaining the filter's ability to recover and capture fine particles. The bypass enables the system to discard clogged filter material without compromising the overall cooling function, ensuring continuous operation.
3Ease of repair
If the filter is made detachable for easy maintenance, then the ease of repair is improved, but the device complexity increases
Solution Approach 1:
The filter is designed as a detachable, segmented component that can be independently removed from the cooling water passage. This segmentation allows for easy maintenance and replacement of the filter without requiring disassembly of the entire cooling system, thereby improving ease of repair while adding minimal complexity through a simple detachable connection mechanism.
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 effectively removes microplastics and other contaminants from the cooling water, maintaining power performance and reducing maintenance complexity, while allowing for environmental cleanup without additional costly measures.
Implementation Method 1
a cartridge-type filtration device that is provided at a midpoint of a first water passage in the cooling water route and incorporates a filter for filtrating foreign matters remaining in the cooling water
Implementation Method 2
a cooling water route that supplies water pumped up from underwater to a cooling water passage to cool a power source
Implementation Method 3
use the water as cooling water, and discharge the cooling water after cooling heat generating parts of the power sources
Data Source
AI summary
The cooling device for a power source for a ship propulsion device that pumps up cooling water, from which foreign matters with sizes that cause clogging of a cooling water route have been removed, supplies the cooling water to a cooling water passage (30), and discharges the cooling water to outside after cooling a power source (10) includes: a cartridge-type filtration device (40, 73) that is provided at a midpoint of a first water passage (36, 71) in the cooling water route and incorporates a filter (45, 46) for filtrating foreign matters remaining in the cooling water; and a second water passage (38, 72) that is branched from the first water passage and adapted such that a valve member (53) is opened to cause the cooling water to flow in a case in which clogging occurs in the filter.