Twist and Lock Coupler for Pleated Filter Sections
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Solution Overview
Problem
The challenge in replacing traditional fabric filter bags with pleated media filter cartridges in baghouses is due to the limited access space in the clean air plenum, as pleated media cartridges are rigid and difficult to install, and current production machinery cannot accommodate filter media wider than about two meters, making it hard to achieve the same filtering area with reduced space.
Innovation Solution
A filter assembly design that includes a coupler with a side wall defining a receiver and a lug clip, which is elastically displaced during connection, allowing for angular adjustment and fluid communication between filter portions, enabling the use of longer pleated filter media without significant manipulation or leakage, even in spaces with limited access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pleated media filter cartridges are used to increase filtering area, then filtering capacity is improved, but installation difficulty increases due to rigidity and limited access space
Solution Approach 1:
The filter cartridge is divided into multiple sections that can be assembled in place within the baghouse. This segmentation allows the rigid pleated media to be installed in manageable portions through the limited access space while maintaining the total filtering area required for improved productivity.
Solution Approach 2:
The coupling mechanism incorporates elastic deformation capability, allowing the rigid pleated media sections to be dynamically adjusted during installation. The elastic elements enable temporary flexibility to navigate installation constraints while maintaining structural rigidity for filtering performance.
2Volume of moving object
If filter media width is increased to achieve same filtering area in less space, then space efficiency is improved, but manufacturing capability deteriorates due to machinery limits
Solution Approach 1:
Instead of manufacturing one large-width filter media beyond current machinery capabilities, the system segments the filtering area into multiple smaller-width sections. Each section can be manufactured with existing production equipment, then assembled together to achieve the total filtering area required for space-efficient operation.
Solution Approach 2:
Multiple filter media sections manufactured at standard widths are combined through the coupling mechanism to create an equivalent filtering area. This merging allows the system to achieve the space efficiency of a large-width filter while relying on currently available manufacturing capabilities.
3Device complexity
If filter media width is increased to reduce number of cartridges, then device complexity is reduced, but handling and transport difficulty increases
Solution Approach 1:
The filter system is segmented into multiple smaller cartridges that can be individually handled and transported with existing equipment. These segmented units are then assembled in place to achieve the desired total filtering area, avoiding the handling difficulties of oversized cartridges while maintaining simplified system architecture.
Solution Approach 2:
The coupling mechanism allows one filter cartridge section to be nested within or alongside another during assembly. This nesting capability facilitates easy handling and transport of individual sections while enabling their combination into a unified filtering system with reduced overall complexity.
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 design allows for efficient installation and operation of longer pleated filter media within existing baghouse structures, enhancing filtering capacity while maintaining space efficiency and reducing installation complexity.
Implementation Method 1
The lug clip is substantially-elastically displaced in a radial direction during connection of the first and second filter portions
Data Source
AI summary
A baghouse and filter assembly are provided for at least partially removing particulate matter from a gas stream. The filter assembly includes a first filter portion to be supported within the baghouse adjacent to an opening defined by a tube sheet, a first generally-tubular frame, and a first pleated filter media adjacent to the first generally-tubular frame. A second filter portion includes a second generally-tubular frame and a second pleated filter media disposed adjacent to the second generally-tubular frame. A coupler is provided for connecting the first filter portion to the second filter portion and establishing fluid communication between the first and second filter portions when connected. The coupling includes a first coupling portion including a side wall defining a receiver, as well as a lug clip disposed adjacent to the receiver. The lug clip us substantially-elastically displaced in a radial direction from an unbiased position during connection of the first and second filter portions.