Segmented Cyclonic-Lattice Filtration for Submicron Particles
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Solution Overview
Problem
Existing filtration systems, such as respiratory masks, are inefficient in removing particles smaller than 1 micron and require disposable, single-use filters, which are costly and difficult to maintain.
Innovation Solution
A filter system with cyclonic passageways and a lattice component that utilizes additive manufacturing to control the size of openings, allowing for the removal of at least 95% of particles, including those smaller than 1 micron, through inertial filtration and lattice separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If inertial filtration systems are used to remove particles, then particles greater than 1 micron can be removed effectively, but particles less than 1 micron cannot be removed effectively
Solution Approach 1:
The filter system is divided into multiple functional zones: a first filter media for initial particle removal, a cyclonic separation zone for intermediate particles, and a second filter media for fine particle removal. This segmentation allows each zone to target specific particle size ranges, solving the problem of ineffective removal for particles under 1 micron while maintaining effectiveness for larger particles.
Solution Approach 2:
The system combines different filtration mechanisms and materials: inertial filtration media, cyclonic separation structures, and fine-pore filter media. This composite approach integrates multiple particle removal mechanisms to achieve broad-spectrum particle removal across different size ranges, from large particles down to sub-micron particles.
2Reliability
If disposable single-use filters are used to remove sufficient particles, then particle removal efficiency is improved, but cost and maintenance difficulty increase
Solution Approach 1:
The filter system is divided into multiple functional zones: a first filter media for initial particle removal, a cyclonic separation zone for intermediate particles, and a second filter media for fine particle removal. This segmentation allows each zone to target specific particle size ranges, solving the problem of ineffective removal for particles under 1 micron while maintaining effectiveness for larger particles.
Solution Approach 2:
The system design allows the first filter media to be removed and replaced while retaining the cyclonic separation zone and second filter media. This partial replacement strategy enables recovery and reuse of durable components, reducing overall disposal costs and maintenance complexity compared to complete single-use filter replacement.
3Reliability
If filter openings are made smaller to remove more particles, then particle removal efficiency is improved, but fluid flow resistance increases
Solution Approach 1:
The filter system is divided into multiple functional zones: a first filter media for initial particle removal, a cyclonic separation zone for intermediate particles, and a second filter media for fine particle removal. This segmentation allows each zone to target specific particle size ranges, solving the problem of ineffective removal for particles under 1 micron while maintaining effectiveness for larger particles.
Solution Approach 2:
Different regions of the filter system have different opening sizes and filtration characteristics tailored to their specific functions. The first filter media has larger openings for coarse filtration, the cyclonic zone has moderate openings for intermediate particles, and the second filter media has smaller openings for fine particle removal. This local optimization of opening sizes achieves high particle removal efficiency while managing pressure drop across the system.
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 at least 95% of particles, including those smaller than 1 micron, by using cyclonic passageways and a lattice component, making it efficient and potentially reusable.
Implementation Method 1
The one or more passageways may rotate the fluid in one or more cyclonic directions between the inlet and the outlet
Implementation Method 2
inertial filtration systems are successful with removing particles have a size greater than 1 micron from a fluid, such as air
Implementation Method 3
the lattice component is shaped to remove a second portion of the particles from the fluid
Data Source
AI summary
A filter system includes a body having an inlet and an outlet fluidly coupled with the inlet by one or more passageways. The one or more passageways are shaped to direct a fluid having particles through the body from the inlet toward the outlet. The one or more passageways may rotate the fluid in one or more cyclonic directions. A lattice component is disposed within the passageways and includes one or more openings through which the fluid passes as the fluid moves in the one or more cyclonic directions. The passageways are shaped to remove a first portion of the particles from the fluid, and the lattice component is shaped to remove a second portion of the particles from the fluid such that the fluid exiting from the body via the outlet has fewer of the particles than when the fluid entered the body via the inlet.