Air purification device and air purification system, and method for cleaning an air purification device and air purification system
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Solution Overview
Problem
Conventional air filtration systems are inefficient due to non-removable and non-replaceable air filters, inadequate sealing, and noise issues, as well as contamination from motors, which reduces their effectiveness in removing indoor pollutants.
Innovation Solution
A portable air filtration system with a removably engaged primary filter module and ionization module, where contaminated air is 'pushed' through the filter and ionization process, reducing noise and enhancing particle removal efficiency, and allowing easy filter replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional air filtration systems use fixed, non-removable air filters, then the system structure is simple, but the filter cannot be easily replaced and operating efficiency deteriorates over time
Solution Approach 1:
The air filter is segmented from the main system as a separate, removable module. The filter assembly includes the filter element housed in a removable frame with sealing members, allowing it to be independently removed and replaced without disassembling the entire air filtration system. This segmentation enables easy maintenance while keeping the overall system relatively simple.
2Productivity
If conventional systems use pull-through air flow, then the system structure is simple, but motor contamination increases and filtration efficiency decreases
Solution Approach 1:
The air flow direction is inverted from the conventional pull-through method to a push-through method. The motor is positioned to push air through the filter element rather than pulling air through it. This reversal prevents motor-generated contaminants from mixing with the filtered air stream and ensures all air passes through the filter, significantly improving filtration efficiency while reducing motor contamination.
3Productivity
If conventional systems allow air to bypass the filter, then air flow resistance is reduced, but filtration completeness deteriorates
Solution Approach 1:
Flexible sealing members (gaskets) are used between the removable filter assembly and the housing to create an airtight seal. These flexible seals conform to the mating surfaces, preventing air bypass while maintaining reasonable air flow resistance. The sealing ensures that all air is forced through the filter element, achieving complete filtration without excessive pressure loss.
4Object-affected harmful factors
If straight air flow is used, then the system structure is simple, but noise levels increase
Solution Approach 1:
The air flow path is designed with curved transitions instead of straight lines. The housing and internal passages incorporate smooth curves to guide air flow, reducing turbulence and noise generation. This curved path design maintains relatively simple system structure while effectively lowering noise levels compared to straight air flow configurations.
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 system achieves higher operating efficiency by ensuring all contaminated air is filtered, reducing noise, and allowing users to easily maintain the filter, thereby improving indoor air quality.
Implementation Method 1
Activation of the air filtration system creates a first ionization field between the high voltage grid and the first control grid and a second ionization field between the high voltage grid and the second control grid
Data Source
AI summary
An air purification device for purifying air, the air purification device including at least one electrostatic filter unit; at least one air filter module; at least one raw air inlet for the air to be purified; at least one clean air outlet for purified air; and at least one air conveying device for conveying the air drawn in through the at least one raw air inlet for the air to be purified in a main flow direction through the at least one electrostatic filter unit and through the at least one air filter module to at least one clean air outlet for the purified air, wherein the air purification device is switchable between an air purification operation, in which the air flows in a main flow direction.