Ultra-Miniature Cyclonic Array Filtration for Fine Particle Separation
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Solution Overview
Problem
Conventional air filtration systems, including dry cyclonic separators and water-based wet cyclonic scrubbers, are ineffective in removing fine particles from air due to limitations in particle size range and require frequent maintenance or extensive infrastructure for water supply and drainage, making them unsuitable for indoor ventilation systems.
Innovation Solution
The development of ultra-miniature cyclone devices configured in large arrays to form sheets or cartridges, which utilize centrifugal forces to separate particles as small as 0.01 μm to 5 μm, and a self-contained, passive wet cyclonic scrubber with a non-water liquid reservoir that recycles and maintains the cleaning liquid, eliminating the need for continuous water supply and drainage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dry cyclonic separators are used to separate particles from air, then the capacity to separate and capture solid particles is improved, but the effectiveness in separating very fine particles deteriorates
Solution Approach 1:
The invention divides the air stream into multiple parallel flow paths, each containing a cyclonic separator element. By segmenting the overall separation task across numerous individual elements working in parallel, the system achieves both high throughput capacity and effective fine particle separation, as each element can be optimized for fine particle capture while the collective array handles large air volumes
2Reliability
If conventional air filters are used to capture suspended particles, then particle removal is achieved, but the filter efficiency rapidly deteriorates as captured dust builds up in the media
Solution Approach 1:
The invention extracts particles from the air stream using cyclonic separation forces that throw particles outward against the walls of the separator elements. This extraction mechanism prevents particles from accumulating within the separation media itself, as particles are continuously removed and collected in external receptacles, thereby maintaining consistent separation efficiency over extended operation periods
Solution Approach 2:
The system continuously discards captured particles from the air stream into collection receptacles, preventing buildup that would clog or saturate the separation media. This discarding mechanism allows the separation elements to maintain their efficiency over time, as the particle capture surfaces remain clear and functional
3Reliability
If cyclonic scrubbers with water spray are used to improve fine particle capture, then particle separation effectiveness is improved, but the requirement for constant water supply and drainage infrastructure increases
Solution Approach 1:
The invention uses pneumatic principles by employing pressurized air streams to drive the cyclonic separation process. The pressurized air creates the rotational flow patterns necessary for particle separation without requiring liquid sprays, pumps, or drainage systems. This pneumatic approach maintains fine particle separation effectiveness while eliminating complex water supply and drainage infrastructure
4Reliability
If ultra-miniature cyclone devices are configured in large arrays to handle ventilation air flows, then the ability to remove fine particles is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The invention segments the overall filter assembly into multiple identical, modular cyclonic separator elements that can be manufactured separately and then assembled into large arrays. Each element is a simple, standardized component that can be produced using conventional manufacturing techniques, and the modular nature allows for scalable assembly to handle different air flow requirements without proportionally increasing manufacturing complexity
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 solution enables efficient removal of fine particles from air flows with reduced maintenance needs and infrastructure requirements, providing a cost-effective and long-lasting air filtration solution for indoor ventilation systems.
Implementation Method 1
configured with a design, size and shape which under ordinary flow and pressure effect vastly greater centrifugal forces
Implementation Method 2
apparatus and systems including large arrays of ultra-miniature cyclones and/or self-contained cyclone or vortex scrubbers
Data Source
AI summary
Some embodiments of the disclosure are directed to an air/fluid filter device comprising a sheet of material initially configured in one or more planar sections, a plurality of organized air/fluid outlets arranged on the sheet and configured to allow the air/fluid to flow through the sheet, and a plurality of cyclonic compartments coupled to the sheet, each compartment comprising a cyclonic structure comprising at least one of a cone or a cylinder, including a tangential inlet, and a cyclonic outlet at the end of the cyclonic structure that is coupled to the sheet. In some embodiments, each tangential opening is in air/fluid communication with a respective incoming air/fluid side of the sheet, and each cyclonic outlet is coupled to a respective outlet of the sheet.