Reusable Paint Mist Filter Unit With Curved Multi-Turn Flow Path
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Solution Overview
Problem
Existing paint mist removal devices using corrugated box paper filters face issues with filter unit reuse due to adhesion of paint, leading to partial detachment and disposal, which is undesirable.
Innovation Solution
The filter unit is made of metal or resin with a flow path design that changes air direction multiple times, allowing paint mist to adhere inside, enabling reuse by minimizing damage during cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter unit is made of corrugated box paper, then the initial filtration performance is achieved, but the filter unit cannot be reused due to paint adhesion and detachment
Solution Approach 1:
The patent changes the material parameter of the filter unit from corrugated box paper to metal or resin. This material substitution fundamentally alters the interaction between the filter surface and paint mist, preventing adhesion and enabling reuse. The metal or resin surface provides smooth, non-porous characteristics that reduce paint attachment, allowing the filter to be cleaned and reused multiple times without degradation.
2Reliability
If the filter unit is made of metal or resin, then reusability is improved, but manufacturing cost increases
Solution Approach 1:
The patent moves away from the disposable corrugated paper model to durable metal or resin filters that can be reused. While the initial manufacturing cost is higher, the long-term cost is reduced through multiple reuse cycles. The filters can be cleaned and reinstalled repeatedly, eliminating the need for continuous replacement and reducing operational costs over time.
3Quantity of substance
If the flow path changes direction at plural locations, then paint mist adhesion is enhanced, but pressure loss increases
Solution Approach 1:
The patent employs curved flow path designs instead of sharp angular bends. The curved surfaces guide air flow smoothly through multiple direction changes, reducing turbulence and pressure loss. The curvature allows paint mist particles to follow the flow path and adhere to the filter surfaces effectively, while maintaining lower resistance to air flow compared to sharp directional changes.
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 metal or resin filter units can be reused effectively, reducing damage and maintaining functionality, unlike corrugated box paper units, by employing a flow path design that centrifugally separates and adheres paint mist.
Implementation Method 1
a flow path through which the air that has flowed in from the inflow port flows, and that changes a direction of flow of the air at plural locations
Data Source
AI summary
A paint mist removal device including a filter unit configured from a metal or resin. The filter unit includes an inflow port for inflow of air containing a paint mist, a flow path that lets the air that has inflowed from the inflow port flow through and that changes a direction of flow of the air at plural locations, and an outflow port for outflow of the air that has passed through the flow path.