Interlocking Air Filter Flaps Prevent Bypass
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In filter banks, air flow bypasses between adjacent air filters, leading to unfiltered air circulation, which compromises air quality and ventilation system efficiency, especially in large commercial and industrial settings, where traditional solutions are cumbersome, expensive, or ineffective in preventing air flow around filters.
Innovation Solution
An air filter design with inversely disposed, angularly adjustable flaps that interlock with adjacent filters to prevent air flow between them, allowing for flexible installation in various environments and ensuring air passes through the filters, rather than around them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple air filters are installed side-by-side in a filter bank, then the filtration capacity is increased, but air flow bypasses through gaps between adjacent filters reducing air quality
Solution Approach 1:
The patent combines multiple air filters into a single integrated filter bank assembly with interconnecting side walls and sealed joints. This merging approach eliminates gaps between individual filters while maintaining high filtration capacity, preventing air flow bypass through the use of interconnected sealed structures.
Solution Approach 2:
The patent introduces intermediary sealing elements including gaskets, seals, and flexible sealing members positioned at the joints between filter sections and side walls. These intermediary components fill and seal the gaps between adjacent filters, preventing air bypass while allowing for thermal expansion and contraction.
2Ease of operation
If traditional air filters are used in large ventilation ducts, then installation is simple, but gaps between filters allow unfiltered air to circulate
Solution Approach 1:
The patent segments the filter bank into multiple modular filter sections that can be independently installed and removed. Each section includes integrated sealing flanges and connection interfaces that simplify assembly while ensuring tight seals between sections, preventing unfiltered air circulation.
Solution Approach 2:
The patent incorporates flexible sealing members and expandable sealing elements that can dynamically adapt to dimensional changes in the filter bank due to thermal expansion, contraction, or installation variations. This dynamic sealing capability maintains tight seals without requiring complex rigid sealing structures.
3Object-affected harmful factors
If expensive HEPA filters are used to achieve 99.9% filtration efficiency, then air quality improves, but cost increases significantly
Solution Approach 1:
The patent implements preliminary filtration through pre-filters positioned upstream of the main HEPA filters. These pre-filters capture larger particles and reduce the load on expensive HEPA filters, extending their service life and reducing replacement frequency, thereby lowering overall operational costs while maintaining high air quality.
Solution Approach 2:
The patent employs a multi-stage filtration system where different filter types are used in sequence, with less expensive filters handling the bulk of particulate removal and expensive HEPA filters focusing on fine particle capture. This staged approach optimizes the use of expensive filtration media and reduces overall system cost.
Data Source
AI summary
A filtration device adapted for adjustably interlocking with adjacent filtration devices in a filter bank, wherein inversely disposed flaps on opposing sidewalls, such us an upper flap disposed along a first sidewall and a lower flap disposed along an opposing sidewall, overlap to interlock and prevent air flow between adjacent filters. Each flap may comprise a single member, or may include multiple folded sections, and may be color coded or provided with installation instructions, may be manufactured integrally with an air filter frame, or may be formed separately and adhered to the frame prior to filter installation, and a flap may also include an adhesive for adhering interlocking flaps together.