Angled Top-Plate Filter Housing for Paint Overspray Separation
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Solution Overview
Problem
Conventional paint booth filters in automotive and industrial environments are inefficient in retaining large amounts of overspray paint, leading to significant waste and environmental impact, despite their capacity to capture substantial paint before replacement.
Innovation Solution
A filtering apparatus with a housing featuring an angled top plate that directs overspray-laden air to impact and adhere to the top plate, while lighter particles enter filter units for interception, minimizing paint entry into the filters and maximizing capture efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate filter units are used to filter different components (particles, droplets, molecules), then filtering effectiveness is improved, but device complexity and space requirements increase
Solution Approach 1:
The patent combines multiple filter units with different filtering mechanisms (particulate filter, condenser for droplets, molecular sieve for molecules) into a single integrated filter unit. The housing contains multiple filter elements arranged in sequence, allowing simultaneous filtration of particles, droplets, and molecules through one compact device rather than requiring separate units for each function.
Solution Approach 2:
The integrated filter unit is designed to perform multiple filtering functions simultaneously. A single filter unit houses diverse filter elements including hydrophobic membranes for particulate filtration, condensers for droplet removal, and molecular sieves for molecular separation, making the device universal for filtering all types of contaminants from breath.
2Ease of repair
If filter elements are disposed of after use, then maintenance effort is reduced, but loss of substance increases due to discarded filter material
Solution Approach 1:
The patent enables recovery and reuse of filter elements that would otherwise be discarded. The removable filter elements can be extracted from the housing, cleaned, disinfected, and reused multiple times. This recovers the filter material value while maintaining ease of maintenance through simple removal and reinstallation of the filter elements.
3Object-affected harmful factors
If a tight seal is created between mask and face, then harmful factor reduction is improved, but comfort deteriorates due to claustrophobic sensation
Solution Approach 1:
The mask is divided into separate functional zones: a rigid headgear structure for securing the mask, a flexible cushioning element for sealing, and an open central channel for breath passage. This segmentation allows the sealing portions to contact the face while the central breathing zone remains open and visible, reducing claustrophobic sensation while maintaining effective sealing around the nose and mouth.
Solution Approach 2:
Different portions of the mask have different properties: the headgear provides rigid structural support and securing force, the peripheral sealing elements provide flexible cushioning for tight sealing, while the central breathing zone remains open and transparent. This local differentiation of properties allows effective sealing where needed while maintaining comfort and visibility where required.
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 angled top plate design effectively separates larger paint particles from the air flow, reducing the amount of paint that enters the filter units, thereby enhancing the filtration efficiency and minimizing waste.
Implementation Method 1
a particulate filter which filters particles from the breath
Implementation Method 2
a condenser which condenses water vapor from the breath
Implementation Method 3
a molecular sieve which separates molecules from the breath
Data Source
Figure 1~2
Figure 3~4
Figure 5~7
AI summary
A filtering apparatus having a housing with lateral, upstream and downstream walls, and a top plate disposed at a significant angle to incoming overspray air to accelerate and guide the particulate-laden air. The angle of the top plate directs the air upstream and away from the filters so the larger solids impact the top plate and wall and adhere, removing paint from the air. Larger solids too massive to turn while accelerating through an opening into an entry chamber collect on the upstream sidewall and the highly filtered air flows toward filter units disposed downstream of the entry opening. Lighter solids that flow downstream are removed by the filtration media. An overhang of the angled top plate reduces flow into the filter units of collected solids.