Ventilation Apparatus Filter Sterilization to Minimize Flow Resistance
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Solution Overview
Problem
Existing ventilation apparatuses face challenges in minimizing flow resistance and ensuring uniform sterilization of filters, which can lead to reduced airflow efficiency and inconsistent filtration performance.
Innovation Solution
The integration of a sterilizing lamp and a reflector within the ventilation apparatus, strategically positioned to minimize flow resistance and ensure uniform light distribution across the filter, which includes crests and troughs for enhanced sterilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sterilizing lamp is installed to sterilize the filter, then sterilization effectiveness is improved, but flow resistance in the air path increases
Solution Approach 1:
The sterilizing lamp is positioned laterally adjacent to the filter rather than in the direct airflow path, utilizing a different spatial dimension (side placement vs. inline placement). This allows the lamp to irradiate the filter surface effectively while avoiding obstruction of the air passage, thus resolving the contradiction between sterilization effectiveness and airflow efficiency
Solution Approach 2:
The reflector acts as an intermediary component that redirects UV light from the sterilizing lamp onto the filter surface. This mediator enables effective sterilization by directing light around the airflow path, allowing the lamp to be positioned outside the direct air stream while still achieving comprehensive filter sterilization
2Reliability
If the sterilizing lamp is positioned to sterilize the filter, then sterilization coverage is improved, but light distribution uniformity deteriorates
Solution Approach 1:
The reflector is divided into multiple segments (first reflector, second reflector, third reflector) that collectively surround the sterilizing lamp. Each reflector segment directs light to different portions of the filter, ensuring comprehensive and uniform coverage across the entire filter surface while maintaining sterilization effectiveness
Solution Approach 2:
Different reflector segments are positioned to direct light to specific local areas of the filter, with each reflector tailored to illuminate particular zones. This local optimization ensures that light distribution is uniform across the entire filter surface, addressing variations in distance and angle from the lamp to different filter regions
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 configuration effectively minimizes flow resistance while providing uniform sterilization of the filter, ensuring efficient airflow and consistent filtration performance.
Implementation Method 1
a sterilizing lamp configured to sterilize the filter
Implementation Method 2
a reflector configured to reflect light emitted from the sterilizing lamp to the filter
Data Source
AI summary
A ventilation apparatus is provided. The ventilation apparatus includes a housing, an inlet formed on one side of the housing so outside air is introduced into the housing, an outlet formed on another side of the housing so the air introduced into the housing through the inlet is discharged indoors, a total heat exchanger arranged between the inlet and the outlet, and including an intake inlet end into which air introduced through the inlet and flowing toward the outlet is introduced, a filter arranged inside the housing and arranged between the inlet and the total heat exchanger, and a sterilizing lamp configured to sterilize the filter, wherein the filter includes a first side extending in a vertical direction and a second side extending in a direction perpendicular to the first side, and wherein the sterilizing lamp is arranged between one end of the filter and the intake inlet end.