Smart IoT energy saving sound wave air filter system and use for air purifiers and a method of air filtration thereof
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Solution Overview
Problem
Conventional air filters face high energy consumption due to pressure drops when maintaining high filtration efficiency, especially in high-efficiency air purifiers used in residential, commercial, and medical settings, as they require densely packed filter media to capture small particulate matter.
Innovation Solution
The Energy Saving Sound Wave air filtering device incorporates sound wave generating means to propagate sound waves into the filter media, enhancing turbulent diffusion and electrostatic charges, which increases the capture efficiency of impurities without increasing pressure drop, and is controlled by IoT to optimize energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If densely packed filter media is used to improve filtration efficiency for small particles, then filtration efficiency is improved, but pressure drop increases resulting in higher energy consumption
Solution Approach 1:
The patent applies acoustic vibration to particles in the air stream, causing them to oscillate and collide with filter media fibers more frequently. This vibrational mechanism enhances particle capture efficiency without requiring densely packed filter media, thereby maintaining lower pressure drop and reduced energy consumption while achieving high filtration efficiency for small particles
Solution Approach 2:
The patent replaces the traditional mechanical approach of using dense physical barriers (densely packed filter media) with an acoustic field-based mechanism. By substituting the mechanical filtration structure with acoustic wave-induced particle motion, the system achieves high filtration efficiency without the associated high pressure drop and energy consumption of dense mechanical filters
2Manufacturing precision
If high efficiency particulate air (HEPA) filters with densely packed fiber material are used in medical facilities, then filtration efficiency for small particulate matter is improved, but cost and energy consumption increase
Solution Approach 1:
The patent uses acoustic vibration to enhance particle capture in medical-grade air filtration, allowing the use of less complex and costly filter media structures compared to traditional HEPA filters. The acoustic field provides the additional particle-media interaction needed for high efficiency without requiring expensive densely packed fiber materials
Solution Approach 2:
The patent changes the physical parameters of the air stream by introducing acoustic waves, transforming the filtration mechanism from purely passive mechanical interception to an active acoustic-enhanced process. This parameter change allows achieving medical-grade filtration efficiency with simpler and more cost-effective filter media
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
This approach significantly improves filtration efficiency from 57.87% to 93.64% (MERV rating up to 13-14) while reducing energy consumption by 30-50% compared to conventional filters, maintaining low power consumption and cost-effectiveness.
Implementation Method 1
one or more sound wave generating means attached at one or more sides of the filter media, wherein the one or more sound wave generating means generate sound waves to be propagated into the filter media
Implementation Method 2
The propagation of the sound waves into the filter media may further facilitate in generating turbulence in the filter media thereby enabling the filter media to enhance the capturing of the one or more impurities based on enhanced turbulent diffusion effect
Implementation Method 3
The propagation of the sound waves into the filter media may further facilitate in generating frictional electrostatic charges on the filter media thereby enabling the filter media to attract the one or more impurities
Data Source
AI summary
An air filter and a method of air filtration using the air filter are described. The air filter may comprise a filter media adapted to capture and filter one or more impurities from air. Further, one or more sound wave generators are attached at one or more sides of the filter media. The one or more sound wave generators generate acoustic waves to be propagated into the filter media. The air filter may further comprise a plurality of sensors positioned before the filter media and after the filter media. Further at least one fan is positioned before or after the filter media. Further an IoT is configured to control frequency of the acoustic waves generated by the one or more sound waves generators, and interconnected with power signal control panel parallel, AHU to control rotational speed of the at least one fan based on value provided by the plurality of sensors.