Modular Filter Shake Pulse Cleaning Dust Removal
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Solution Overview
Problem
Existing air filtration systems, particularly those using filter cartridges, face inefficiencies in dust removal due to axial pulse cleaning methods that fail to adequately dislodge dust from the filter surfaces, leading to reduced performance over time.
Innovation Solution
Combining a reverse jet cleaning system with a filter vibration system, where both are activated simultaneously, and using a sheet metal aperture plate of reduced gauge thickness to enhance dust dislodgment and removal, with a pneumatic turbine ball vibrator spinning at high RPMs to effectively vibrate and blow off dust from the filter surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If axial pulse cleaning system is used, then dust is dislodged from filter surface, but cleaning effectiveness is insufficient
Solution Approach 1:
The patent combines axial pulse cleaning with radial shake cleaning into a unified cleaning system. The axial nozzles deliver pulses along the filter length while radial arms with rollers provide shaking motion perpendicular to the filter surface, creating a synergistic effect that overcomes the limitations of either system alone.
Solution Approach 2:
The cleaning system transitions from static axial pulses to a dynamic combination of axial pulsing and radial shaking motion. The radial arms rotate to provide varying angles of attack on the dust cake, while the oscillating motion of rollers adds mechanical disruption that enhances dust dislodgment.
2Stability of the object's composition
If rigid aperture plate is used, then structural stability is maintained, but dust dislodgment effectiveness is reduced
Solution Approach 1:
The aperture plate is designed to transition from a completely rigid structure to a semi-flexible structure that can oscillate radially. This allows the plate to transmit shaking motion to the filter cartridges while maintaining sufficient structural integrity to support the cleaning mechanism and withstand operational pressures.
Solution Approach 2:
The patent changes the mechanical parameters of the aperture plate by reducing its gauge thickness and modifying its support structure. This creates a structure with appropriate natural frequency and amplitude characteristics for effective dust dislodgment while maintaining necessary structural stability.
3Device complexity
If filter cartridges are cleaned in place, then system complexity is reduced, but cleaning thoroughness is insufficient
Solution Approach 1:
The patent adds a radial cleaning dimension to the traditional axial pulse system. By introducing radial arms that extend outward and contact the filter cartridges from the side, the system attacks dust deposits from multiple directions simultaneously, greatly enhancing cleaning thoroughness without requiring filter removal.
Solution Approach 2:
The cleaning system is segmented into multiple independent components: axial pulse nozzles positioned at different locations along the filter length, and radial arms with multiple rollers that contact different sections of the filter surface. This segmentation allows comprehensive coverage of the entire filter area.
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 combined method significantly improves dust removal efficiency, extending the operational life of filters by maintaining excellent performance over several months without the need for frequent replacements, as demonstrated in case studies with plasma cutting machine applications.
Implementation Method 1
a reverse jet cleaning system comprising an axial pulse of air propagated down the inside of the filter
Implementation Method 2
a vibration system (or ultrasonic) vibrates the filter cartridge to dislodge the dust
Implementation Method 3
a pneumatic turbine ball vibrator spinning at high RPMs to effectively vibrate and blow off dust from the filter surfaces
Data Source
AI summary
In a filtration device comprising tubular filters, a reverse jet cleaning system is combined with a filter vibrating system, with both systems being activated simultaneously. This combined action results in the jets reversing the flow for a brief time (usually less than 1 second), while a strong vibration system (or ultrasonic) vibrates the filter cartridge to dislodge the dust. Vibration is enhanced when the aperture plate supporting the cartridges is formed of sheet metal.