Air purification apparatus
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Solution Overview
Problem
Conventional air purification apparatuses face challenges in maintaining air purification performance due to the rapid accumulation of contaminants in filters, leading to decreased efficiency and increased maintenance costs.
Innovation Solution
The air purification apparatus incorporates a dual flow path system with a first filter positioned between the flow paths, allowing for operation in both filtering and cleaning modes. The cleaning mode involves a temperature change rate adjustment in specific areas to efficiently remove contaminants from the filter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter is used to collect contaminants in the air purification apparatus, then air purification performance is improved, but the filter efficiency rapidly decreases due to contaminant accumulation requiring periodic replacement and cleaning
Solution Approach 1:
The filter unit is designed to automatically regenerate by burning off accumulated contaminants through a heating element. The control unit activates the heater to raise the filter temperature to a range where organic contaminants combust, cleaning the filter without manual intervention and restoring its purification capacity.
Solution Approach 2:
The system changes the temperature parameter of the filter from normal operating conditions to combustion conditions. The control unit monitors and adjusts the heating element to achieve and maintain the optimal temperature range for burning contaminants, transforming the filter from a contaminated state to a cleaned state.
2Reliability
If the filter is cleaned by burning contaminants, then filter efficiency is restored, but the temperature control must be precise to avoid incomplete combustion or excessive temperature
Solution Approach 1:
The control unit continuously monitors the filter temperature and adjusts the heating element activation accordingly. When the temperature reaches the optimal combustion range, the control unit maintains it within this range; when the cleaning is complete or temperature exceeds safety thresholds, the control unit deactivates the heater, preventing overheating and ensuring complete combustion.
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 solution enables selective purification of introduced air and effective cleaning of the filter, improving overall air purification efficiency and reducing maintenance costs.
Implementation Method 1
a heating unit which may emit heat, wherein the first filter unit is heated by the heating unit to a predetermined temperature or higher
Implementation Method 2
at least some of the collected contaminants may be combusted when the first filter unit is heated to a predetermined temperature or higher
Data Source
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AI summary
According to an embodiment of the present application, there may be provided an air purification apparatus for purifying polluted air and discharging the purified air, which comprises a main pipe including a first flow path, a second flow path, a first filter, a first main area, and a second main area. The air purification apparatus can operate in a filtering mode in which at least some contaminants contained in the air flowing into the main pipe are collected by the first filter, or a cleaning mode in which at least some of the contaminants collected by the first filter in the filtering mode are removed, wherein an operation section in the cleaning mode of the air purification apparatus includes a firs section and a second section, the first section and the second section are divided on the basis of a first division time point, and the rate of change of temperature in the first main area is varied before and after the first division time point.