Canted-Opening Filter Assemblies for Easier Installation and Pulse Cleaning
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Solution Overview
Problem
Conventional filters for particulate matter collection face challenges in ease of installation, pulse cleaning performance, and filter life due to their perpendicular openings, which can lead to damage and reduced efficiency.
Innovation Solution
The use of filters with canted or angled openings and seals, allowing for larger tubesheet apertures, easier installation, improved pulse cleaning performance, and increased filter life by tightening the fit on support cages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional filters with perpendicular openings are used, then the filter structure is simple, but the filter opening is small making installation difficult and prone to damage
Solution Approach 1:
The filter opening is changed from a perpendicular (symmetric) orientation to a canted (asymmetric) orientation relative to the filter axis. This asymmetric opening configuration allows the filter to be inserted more easily through the tubesheet aperture while maintaining structural integrity, directly resolving the contradiction between ease of installation and structural simplicity.
2Productivity
If conventional filters with perpendicular openings are used, then the filter structure is simple, but the pulse cleaning performance is reduced
Solution Approach 1:
The canted opening configuration creates an asymmetric geometry that improves pulse cleaning performance by allowing better alignment with the pulse jet direction and enhancing the removal of collected particulate matter. This asymmetric design directly addresses the productivity issue without requiring complex additional components.
Solution Approach 2:
The filter opening is oriented at an angle (canted) rather than perpendicular to the filter axis, effectively changing the dimensional orientation of the opening. This dimensional change allows the filter to respond more effectively to pulse cleaning jets and improves particulate removal efficiency.
3Reliability
If conventional filters with perpendicular openings are used, then the filter structure is simple, but the filter life is reduced due to damage
Solution Approach 1:
The canted opening configuration reduces stress concentration and mechanical damage during installation and operation compared to perpendicular openings. The asymmetric orientation distributes mechanical loads more favorably, extending filter life without adding structural complexity.
4Ease of operation
If filters with canted openings are used, then installation is easier and pulse cleaning is improved, but the filter opening area increases
Solution Approach 1:
The filter opening area is increased by canting the opening relative to the filter axis. This parameter change (increased opening area) directly facilitates easier installation and improved pulse cleaning performance, accepting the trade-off of larger opening area to achieve the operational benefits.
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
Enhances filter installation, improves pulse cleaning efficiency, and extends filter life while maintaining or reducing collector size, offering better filtering capacity in industrial applications.
Implementation Method 1
Gas (e.g., air, etc.) contaminated with particulate matter passes through the filters with the particulate matter being captured and retained by the filters
Implementation Method 2
Cleaning can be accomplished by periodically pulsing a brief jet of pressurized air into the interior of the filter to reverse the flow through the filter, causing the collected particulate matter to be driven off of the filter
Data Source
AI summary
Filters having canted openings, filter assemblies including the filters, filter supports, collectors, collectors with reduced profile clean air chambers, and methods of using the same are described herein.