Plasma Air Purifier Serpentine Reaction Channel
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Solution Overview
Problem
Conventional plasma air purifying devices using plasma, positive/negative ions, or ozone for pollutant removal provide insufficient reaction time, leading to incomplete purification and potential air pollution.
Innovation Solution
A plasma air purifying device with a container featuring repetitive bending reaction channels created by partition plates, which extends the air's pathway through a plasma zone, ensuring harmful substances are adequately broken down before discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If air passes through a limited plasma space in conventional devices, then device complexity is reduced, but reaction time is insufficient leading to incomplete pollutant removal
Solution Approach 1:
The reaction zone is segmented into multiple reaction chambers by partition plates with through channels, creating a serpentine flow path that extends reaction time without significantly increasing overall device volume or complexity
Solution Approach 2:
The partition plates with through channels create a three-dimensional serpentine flow path within the reaction zone, transforming a simple linear path into a multi-dimensional winding path that increases reaction time while maintaining compact device dimensions
2Productivity
If filter filtration is used to remove harmful substances, then initial purification efficiency is improved, but filter accumulation of harmful substances reduces efficiency and creates new pollution sources
Solution Approach 1:
The mechanical filter filtration system is replaced with a plasma-based chemical reaction system. Plasma-generating elements create plasma that chemically decomposes harmful substances through oxidation reactions, eliminating the need for physical filters that accumulate pollutants
Solution Approach 2:
Plasma generates highly reactive oxygen species including ozone and free radicals that act as strong oxidants to rapidly decompose harmful substances such as formaldehyde, benzene, and other volatile organic compounds through accelerated oxidation reactions
3Device complexity
If exhaust emissions are discharged directly after treatment, then device complexity is minimized, but harmful substances spread to the neighborhood causing health risks
Solution Approach 1:
The extended serpentine reaction channel ensures continuous exposure of exhaust emissions to plasma throughout the entire path from inlet to outlet, maintaining continuous purification action until harmful substances are fully decomposed before discharge
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
Significantly reduces the amount of harmful substances in the discharged air by elongating the reaction time within the plasma zone, enhancing air purification efficiency.
Implementation Method 1
The at least one plasma-generating element is disposed in the plasma zone, and used for generating a plasma
Data Source
AI summary
A plasma air purifying device includes a container and at least one plasma-generating element. The container includes a container body, a plurality of first partition plates and a plurality of second partition plates. The container body has an air inlet, an air outlet, and an accommodating space between the air inlet and the air outlet, and the accommodating space includes a plasma zone and a reaction zone. The first partition plates and the second partition plates are staggered in the reaction zone to separate a plurality of reaction chambers. The reaction chambers integrate spatially first through channels of the corresponding first partition plates and second through channels of the corresponding second partition plates so as to form a repetitive bending reaction channel, such that the plasma can purify the air flowing through the air inlet, the plasma zone, the repetitive bending reaction channel and the air outlet.