Membrane Filter Material With Bonded Layers for Compact Air Filtration
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Solution Overview
Problem
Existing air filtration systems require additional installation space due to the use of multiple layers, such as prefilter layers, which compromises the compactness of the filter element.
Innovation Solution
A filter material comprising a prefilter layer, an activated carbon layer, and a composite layer with a membrane, all materially bonded together, which maintains compactness while enhancing filtration efficiency and dust storage capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a prefilter layer is added to protect the adsorption layer and fine filter layer from dust loading, then the filtration function is maintained for longer, but the installation space requirement increases and compactness is compromised
Solution Approach 1:
The patent combines the prefilter layer, activated carbon layer, and fine filter layer into a single integrated filter material structure. The prefilter layer is directly bonded to the activated carbon layer, which is in turn bonded to the fine filter layer, eliminating the need for separate protective structures and reducing overall installation space while maintaining the protective function for longer filtration duration
Solution Approach 2:
The patent uses a composite structure where different filter layers with distinct functions (prefilter for coarse particles, activated carbon for adsorption, fine filter for aerosols) are materially bonded together. This composite approach allows multiple functions to be integrated in a compact configuration, achieving both extended filtration function maintenance and reduced installation space
2Reliability
If multiple separate filter layers are used, then comprehensive filtration is achieved, but the filter element structure becomes complex and less compact
Solution Approach 1:
The patent merges multiple separate filter layers into a single integrated filter material where the prefilter layer, activated carbon layer, and fine filter layer are materially bonded together. This integration maintains comprehensive filtration capabilities while simplifying the overall structure and reducing complexity of the filter element assembly
Solution Approach 2:
The integrated filter material is segmented into distinct functional layers (prefilter, activated carbon, fine filter) that are materially bonded together. This segmentation allows each layer to perform its specific filtration function while the material bonding maintains structural simplicity and compactness, avoiding the complexity of separate assemblies
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 integrated filter material achieves stable filtration efficiency over time, maintains compact size, and reduces pressure loss, thereby improving the overall performance of air filtration systems.
Implementation Method 1
The filter material has a prefilter layer on the inflow side, which is configured as a coarse dust filter layer
Implementation Method 2
an activated carbon layer as an adsorption layer
Implementation Method 3
The composite layer has at least one membrane on a carrier layer... particles in the micron and sub-micron range can be filtered
Data Source
AI summary
A filter material for air filtration in a filter element. The filter material includes a prefilter layer on an inflow side, an activated carbon layer, and a composite layer. The composite layer is formed with at least one membrane layer. The prefilter layer, the activated carbon layer and the composite layer are materially bonded to each other.