Pocket Filter Assembly with Segmented Frame and Rounded Connecting Strip
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Solution Overview
Problem
Existing gas filter cassette units are either complex and costly to produce, assemble, and mount, or lack stability and secure filtration, and there is a need for a design that is inexpensive, easy to produce, assemble, and mount while ensuring stability and easy recyclability.
Innovation Solution
A gas filter assembly with a support frame composed of two interconnected subframes and a connecting means that secures filter pockets in a dust-free manner, featuring a rounded connecting strip for reduced pressure drop and enhanced stability, and a design that allows for easy separation and recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing gas filter cassette units use complex frame structures with multiple articulated components, then the filter assembly provides stable support and secure filtration, but the production cost, assembly complexity, and mounting difficulty increase significantly
Solution Approach 1:
The frame structure is divided into two separate subframes (first subframe and second subframe) that are connected through locking elements. This segmentation allows each subframe to be simpler in design while collectively providing the necessary stability and support for the filter pockets, reducing overall complexity compared to a single complex articulated frame.
Solution Approach 2:
The invention extracts and eliminates the need for complex articulated connections and multiple hinge joints found in prior art. By using a simplified rigid subframe structure with direct locking mechanisms, the design removes unnecessary moving parts while maintaining structural integrity and filtration security.
2Ease of manufacture
If existing gas filter cassette units use simplified frame designs, then the production and assembly costs are reduced, but the stability of the support frame and security of filter pocket connection deteriorate
Solution Approach 1:
By segmenting the frame into two stable subframes connected by locking elements, each component can be manufactured using simpler processes compared to a single complex frame, while the assembled structure maintains high stability through the interlocking configuration.
Solution Approach 2:
The two subframes are merged through locking elements to form a unified stable structure. This combination provides the stability of a complex frame while allowing each individual subframe to be simpler and easier to manufacture separately.
3Ease of manufacture
If the connecting means between filter pockets uses a flat strip design, then the manufacturing is simpler, but the pressure drop increases and the ability to resist bending in strong draught is reduced
Solution Approach 1:
The connecting means employs a rounded cross-sectional shape instead of a flat strip. This curvature reduces flow separation and turbulence in the air stream, thereby reducing pressure drop and energy loss while maintaining structural strength to resist bending forces in strong draught conditions.
4Strength
If the filter assembly uses integrated non-separable materials, then the structural integrity is enhanced, but the recyclability and ability to separate materials for destruction or recycling is lost
Solution Approach 1:
The filter assembly is segmented into distinct components (subframes, locking elements, filter pockets) that can be separated from each other. This allows different materials used in different components to be separated for appropriate recycling or destruction methods, while each component maintains its structural integrity during use.
Solution Approach 2:
The design enables easy disassembly and separation of components at the end of their service life, allowing materials to be recovered and recycled appropriately. The modular structure facilitates selective disposal and recovery of different materials based on their environmental impact and recyclability.
Data Source
AI summary
The present invention relates to a gas filter assembly includes a support frame and a number of filter pockets. The support frame includes a first subframe and a second subframe connected to each other by means of at least one locking element, the first and second subframe constituting the inner wall, the front face and outer wall of the support frame when connected together. Each filter pocket has an air inlet opening at one end defined by opposing sides each having an edge. The filter pockets are sealingly secured to each other by means of at least one connecting means bridging between, and extending along substantially the entire length of the edges of two adjacent filter pockets. The at least one connecting means has two opposite end portions, each end portion being arranged between said first and second subframes.