V-Shaped Cassette Filter Frame with Integrated Protective Grids
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Solution Overview
Problem
Existing cassette filters for gas turbines, compressors, and ventilation systems face challenges due to complex assembly, instability, and high flow resistance, primarily due to the intricate design of the frame elements and protective grids, which leads to potential leaks and reduced stability.
Innovation Solution
A cassette filter design featuring a frame composed of a few interconnected elements, including an upstream head frame, side plates, and base plate cross members, with protective grids integrated into a structural unit to enhance stability and reduce assembly complexity, thereby optimizing force flow and reducing the need for potting compound.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protective grids and base plate cross members are separately connected using casting compound, then assembly is possible, but connection strength is insufficient and leaks may occur
Solution Approach 1:
The protective grid and base plate cross member are merged into a single integrally formed component. This eliminates the need for separate connection elements and casting compound, providing reliable structural integrity while simplifying the assembly process. The integrated design ensures that forces are distributed evenly without weak connection points.
Solution Approach 2:
The frame is divided into modular components (head frame, side plates, base plate cross members) that can be independently manufactured and then assembled. The protective grid is integrated with specific base plate cross members to form structural units, creating a balanced design that combines modularity with structural integrity.
2Ease of operation
If multiple individual parts are used in the frame structure, then assembly flexibility is improved, but force flow design becomes complex and stability decreases
Solution Approach 1:
The protective grid and base plate cross member are merged into a single integrally formed component. This eliminates the need for separate connection elements and casting compound, providing reliable structural integrity while simplifying the assembly process. The integrated design ensures that forces are distributed evenly without weak connection points.
Solution Approach 2:
The base plate cross members serve multiple functions: they provide structural support, integrate the protective grids, and form part of the frame's load-bearing structure. This multi-functionality reduces the number of separate components needed while maintaining assembly flexibility and structural stability.
3Reliability
If protective grids are heavily fastened with casting compound, then connection security is improved, but manufacturing complexity and material usage increase
Solution Approach 1:
The protective grid and base plate cross member are merged into a single integrally formed component. This eliminates the need for separate connection elements and casting compound, providing reliable structural integrity while simplifying the assembly process. The integrated design ensures that forces are distributed evenly without weak connection points.
Data Source
Figure 1a~1b
Figure 2
Figure 3a~3c
AI summary
The invention relates to a cassette filter (100) for filtering an air flow, comprising a plurality of filter media packages (2), wherein a pair of filter media packages (2) is arranged in a V-shape and having a frame (1) for receiving the filter media packages (2), wherein the frame (1) has an upstream head frame (10), two side plates (30), and a plurality of downstream base plate cross members (20), wherein a base plate cross member (20) is assigned to each pair of V-shaped filter media packages (2), wherein the filter additionally has protective grids (40), wherein one protective grid is assigned to each filter media package on the clean gas side. According to the invention, the protective grids (40) assigned to each pair of filter media packages (2) and the base plate cross member (20) form a structural unit (24). Such a frame advantageously has a simple and inexpensive design in terms of production technology.