Hydrophilic Filter Tubes with Offset Apertures for Particulate Removal
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Solution Overview
Problem
Existing filter systems for removing particulates from airflow are costly to manufacture and maintain, require frequent fluid refilling, and are laborious to replace due to individually attached filter rods, and woven filter materials are difficult to clean and clog quickly.
Innovation Solution
A filter system comprising parallel filter units with hydrophilic filter tubes that are offset and coated with a liquid attractant, allowing for efficient particulate capture without the need for woven materials or fluid containers, and can be easily cleaned and reused, with features like apertures for increased surface area and magnetic elements for ferrous metal capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If filter rods are individually attached in a filter housing, then the filter can be assembled with multiple filter elements, but the filter rods become difficult and expensive to manufacture and laborious to replace
Solution Approach 1:
The filter system divides the filtration function into multiple parallel filter rods, each independently structured but collectively providing enhanced filtration capacity. This segmentation allows the system to achieve higher productivity while maintaining manageable individual component complexity.
Solution Approach 2:
Multiple filter rods are combined within a single filter housing structure, integrating several filtration elements into one unified assembly. This merging approach increases overall filtration capacity while simplifying replacement, as the entire array can be replaced as a single unit rather than individual rods.
2Reliability
If filter rods are used with fluid containers for wetting, then particulate removal effectiveness is improved, but the fluid container must be regularly refilled and maintenance becomes more complex
Solution Approach 1:
The filter rods are designed to self-wet through their hydrophilic surface properties, eliminating the need for external fluid containers and refilling systems. The material inherently attracts and retains liquid attractant, providing continuous particulate removal effectiveness without additional complex components.
Solution Approach 2:
The filter rods utilize hydrophilic materials that change their surface properties to actively attract and retain liquid attractant. This parameter change in surface characteristics enables the rods to maintain effectiveness without external fluid supply systems, reducing device complexity.
3Reliability
If woven filter materials are used, then filtration can be achieved, but the materials become clogged quickly and are difficult or impossible to clean and reuse
Solution Approach 1:
The filter rods employ porous solid structures instead of woven materials. These porous structures provide effective filtration while allowing easier cleaning and reuse, as the porous geometry does not become permanently clogged like woven fibers.
Solution Approach 2:
The filter rods are designed as replaceable, cost-effective components that can be easily discarded and replaced rather than cleaned and reused. This approach prioritizes simplicity and cost-effectiveness over long-term durability, allowing frequent replacement without significant expense or effort.
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 provides effective and cost-efficient particulate removal with reduced maintenance needs, as the hydrophilic filter tubes can be easily cleaned and reused, and the attractant resists drying out, eliminating the need for fluid refills and simplifying replacement.
Implementation Method 1
The filter tubes may be formed of a hydrophilic material capable of retaining a liquid attractant
Implementation Method 2
the attractant formulated to entrain particulates
Data Source
Figure 1
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AI summary
A filter system and method of making same is disclosed. The system includes one or more of filter units, each having a plurality of spaced apart hydrophilic filter tubes coated with an attractant that entrains particulates without the need for woven filter material. The filter tubes may have a plurality of apertures therethrough to increase the surface area of the filter tubes. The filter units may be placed adjacent to each other but with their filter tubes laterally offset to increase the likelihood that particles will engage at least one coated tube.