Pulsed Panel Filter Cleaning via Oblique Blowpipe Angles
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Solution Overview
Problem
Existing air cleaner and dust collector systems face inefficiencies in filter cleaning due to the need for an exhaust gas jet that effectively fills the filter openings, often resulting in suboptimal cleaning and potential damage to the filter media.
Innovation Solution
The system employs a panel-style filter arrangement with blowpipes directing fluid pulses at angles non-normal to the filter openings and not in line with filtration flow, combined with an accumulator arrangement of plates to trap and manage the pulse, optimizing cleaning efficiency and reducing media abrasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the exhaust jet is directed normal to the filter opening to ensure complete coverage, then the cleaning coverage is improved, but the filter media experiences excessive abrasion and potential damage
Solution Approach 1:
The blowpipe is oriented at an oblique angle (non-normal) to the filter opening rather than perpendicular, creating an asymmetric jet trajectory that reduces direct impact forces on the media while still achieving effective cleaning coverage through the angled flow path
Solution Approach 2:
The exhaust jet is directed at an angle that is not in line with the general filtration flow direction, introducing a dimensional component perpendicular to the flow path. This multi-dimensional approach allows the jet to penetrate and clean the media without concentrating force along the primary flow axis, reducing abrasion while maintaining cleaning efficacy
2Productivity
If the exhaust jet is directed in line with the filtration flow to maximize cleaning power, then the debris removal efficiency is improved, but the flow path becomes obstructed and media damage increases
Solution Approach 1:
The blowpipe angle is specifically oriented asymmetrically relative to the filtration flow direction, creating a non-aligned jet path that cleans the media at an angle rather than directly opposing the flow, thereby removing debris without blocking the primary flow path
Solution Approach 2:
By directing the exhaust jet at an angle that introduces a component perpendicular to the filtration flow, the cleaning action occurs in a different dimensional plane than the main flow path, allowing effective debris removal while maintaining unobstructed flow through the filter
3Reliability
If the exhaust jet is directed normal to the filter opening to ensure complete coverage, then the cleaning coverage is improved, but the overall cleaning efficiency decreases due to media damage and flow obstruction
Solution Approach 1:
The blowpipe orientation parameters (angle and direction) are optimized to achieve the最佳 balance between cleaning coverage and media protection. By adjusting the angular parameters of the jet direction, the system maintains effective cleaning while minimizing harmful effects, thereby preserving both media integrity and cleaning efficiency
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 approach enhances filter cleaning efficacy by ensuring thorough debris removal while minimizing media damage and flow path obstructions, leading to improved filtration performance and reduced maintenance.
Implementation Method 1
exhaust gas from a valve and pressure tank (reservoir) to back flush filters
Implementation Method 2
directing fluid pulses at the openings in the tubesheet
Implementation Method 3
trapping at least a portion of the fluid pulses using first and second plates oriented on the clean air side of the tubesheet
Data Source
AI summary
An air cleaner includes a housing with a dirty air inlet, a clean air outlet, and an interior. A tubesheet is in the housing interior having a plurality of openings. A panel-style filter arrangement is oriented such that each one of the openings in the tubesheet is covered by the panel-style filter arrangement. A plurality of blowpipes are oriented to direct a fluid pulse at a respective one of the openings in the tubesheet covered by the filter arrangement. Preferably, each blowpipe is oriented to direct a fluid pulse at a respective one of the openings in the tubesheet covered by the panel-style filter arrangement at an angle that is: (i) not normal to a plane of the openings in the tubesheet; and (ii) not in line with a general direction of filtration flow through the panel-style filter arrangement.