Ventilation assembly
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Solution Overview
Problem
Existing ventilation systems face challenges in efficiently filtering air streams due to filtering sections acting as significant obstacles, leading to increased energy consumption and production costs, while also compromising filtering quality and being cumbersome, especially in the biomedical sector.
Innovation Solution
A ventilation assembly with a filtering section comprising air-tight bulkheads and a containment body that forces the air stream to collide with the bulkheads, trapping particulates and bacteria, allowing for reduced pressure drop and increased filtering efficiency without being cumbersome or expensive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional filtering barriers with narrow and thick lattice are used to retain small particles, then filtering efficiency is improved, but pressure drop of the air stream increases significantly
Solution Approach 1:
The patent replaces the traditional mechanical filtering barrier (lattice structure) with an electrostatic field-based filtration system. The electrostatic precipitator uses charged electrodes to create an electric field that captures particles through electrostatic attraction, eliminating the need for physical lattice barriers and significantly reducing pressure drop while maintaining high filtering efficiency.
Solution Approach 2:
The invention changes the fundamental parameter of filtration from mechanical physical blocking to electrostatic field-based particle capture. By introducing electrical charge as the filtering mechanism, the system achieves high particle retention without the pressure losses associated with dense physical filters.
2Stress or pressure
If larger filters are provided to reduce pressure drop, then air stream obstruction is reduced, but the filters become cumbersome and expensive
Solution Approach 1:
The electrostatic precipitator replaces bulky mechanical filters with a compact electric field-based system. This substitution allows for effective particle filtration without requiring large physical filter media, thereby reducing device complexity, size, and cost while maintaining low pressure drop characteristics.
3Stress or pressure
If more powerful air stream generation devices are used to overcome filtering obstruction, then air stream pressure is maintained, but production costs and energy consumption increase
Solution Approach 1:
By replacing mechanical filters with an electrostatic field-based system, the patent eliminates the need for high-power air stream generation devices. The electrostatic precipitator creates minimal resistance to air flow, allowing standard, lower-power fans or blowers to maintain adequate air stream pressure, thereby significantly reducing energy consumption and production costs.
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 achieves equal or higher filtering efficiency with reduced air stream obstruction, lower production and energy costs, and improved usability in the biomedical sector by using smaller, more efficient filters arranged in series or parallel configurations.
Implementation Method 1
a cyclonic filter is often used. The latter is based on the generation of a cyclonic air stream so that the particulate slams against the filter walls and is collected by falling
Implementation Method 2
the particulate slams against the filter walls and is collected by falling
Data Source
AI summary
A ventilation assembly includes an air intake channel; a delivery channel; a generating device of an air stream between the intake channel and the delivery channel; a filtering section of the air stream to decrease, if not eliminate, the presence of particulate in the air stream. The filtering section includes a filter having a containment body provided with an intake opening and a delivery opening for the air stream passing therethrough, and air-tight bulkheads, arranged inside the containment body and shaped to force the air stream to collide therewith and with the inner walls of the containment body, the bulkheads and the containment body having a section portion suitable for being penetrated by the particulate in the air stream so as to retain it therein.