Passive Air Filtering Panel With Composite Active Carbon Layer
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Solution Overview
Problem
Existing air filtration solutions, particularly passive systems, face challenges in efficiently removing fine dusts, micro dusts, and molecules from air in both closed and open environments, often requiring complex setups and high maintenance, and lack versatility for additional functions like commercial communication and design.
Innovation Solution
A filtering panel with a sandwich structure using active carbon with pore sizes greater than 300 microns, where the active carbon layer is combined with outer layers for macro particle filtration, and the active carbon weight is 50% of the support structure's weight, allowing for prolonged efficiency and easy assembly, and also suitable for use in commercial and urban design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional active carbon filtering is used, then fine dusts and molecules are removed from air, but the filtering period is short and maintenance is frequent
Solution Approach 1:
The filtering system is segmented into three distinct layers: a first outer layer for macro particle filtration, an intermediate layer with active carbon for micro particle and molecule absorption, and a second outer layer for additional macro particle filtration. This segmentation allows each layer to specialize in specific pollutant types, extending the overall filtering period by preventing rapid saturation of the active carbon layer with large particles.
Solution Approach 2:
The patent employs a composite structure combining different filtering materials in layers. The outer layers use materials optimized for macro particle capture, while the intermediate layer uses active carbon impregnated on a support structure for micro particle and molecule absorption. This composite approach maximizes the duration of action by ensuring that each material works within its optimal performance range.
2Reliability
If complex active filtering systems with fans and pipes are used, then air purification is achieved, but device complexity and installation costs increase
Solution Approach 1:
The patent extracts and eliminates the complex forced conveying components (fans, pipes, valves) from the filtering system. By removing these active elements, the system transitions to a passive filtering approach where air naturally contacts the filtering panel through diffusion and convection, achieving purification without mechanical assistance and significantly reducing device complexity.
Solution Approach 2:
The filtering panel is designed to function autonomously without external power sources or control systems. The passive filtering mechanism allows air to naturally interact with the filtering layers through environmental convection currents, enabling the system to serve itself without complex infrastructure and reducing both device complexity and installation costs.
3Reliability
If filtering panels are designed for specialized use only, then filtering performance is optimized, but versatility for commercial and design applications is limited
Solution Approach 1:
The filtering panel is designed with universal applicability, serving both air purification functions and commercial communication/design functions. The panel's structure and materials are selected to allow integration into diverse environments such as urban spaces, commercial areas, and domestic settings, enabling a single device to fulfill multiple roles and enhancing versatility without compromising filtering performance.
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 panel effectively removes micro and macro pollutants from air, prolongs the filtration period, reduces maintenance, and allows for dual functionality in filtration and commercial use, improving air quality in various environments.
Implementation Method 1
a filtering panel for the passive adsorption of micro particles such as atmospheric pollutants or the like
Implementation Method 2
the layer of active carbons is combined with one or more layers (for example superimposed on a layer or arranged between two layers) where the 'outer' layers are intended for the filtration of the macro particles, macro dusts or macro molecules contained in the air
Implementation Method 3
in passive filtering systems, the air comes into contact with the filtering systems, for example in the form of panels, by means of natural convection
Data Source
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AI summary
Filtering panel (100) configured for the passive adsorption, by natural non-forced convection, of micro particles such as atmospheric pollutants or the like, said panel comprising a first outer layer (10), a second outer layer (30) and an intermediate filtering layer (20) arranged between said first and second outer layers, said intermediate filtering layer (20) comprising a support structure impregnated with porous active carbons, characterized in that said support structure of said intermediate filtering layer is composed of heat-welded polyester fibres, and in that a weight per square metre of said active carbons is equal to about 50% of a weight per square metre of said support structure.