Concentric Round Filter Element With Supported Media Layers
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Solution Overview
Problem
Existing filter elements for gaseous fluids in fuel cell applications face challenges in maintaining high filtration efficiency over extended operating durations, particularly in ensuring effective separation of particles and noxious gases while minimizing material discharge and friction between filter medium bodies.
Innovation Solution
A round filter element design featuring a gas-permeable support element integrated with end plates, which stabilizes and supports the filter medium bodies, and includes gas-permeable media layers to reduce friction and prevent particle discharge, with concentric particle and noxious gas filter medium bodies surrounding a flow chamber for efficient radial flow filtration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filter medium bodies are arranged concentrically for particle and noxious gas filtration, then filtration efficiency is improved, but friction between filter medium bodies increases
Solution Approach 1:
A gas-permeable support element is introduced as an intermediary component between the concentrically arranged particle filter medium body and noxious gas filter medium body. This support element provides structural separation and stabilization, reducing direct friction contact between the two filter medium bodies while maintaining their concentric configuration for efficient radial flow filtration
2Duration of action of stationary object
If filter medium bodies are stabilized for extended operation, then operational durability is improved, but material discharge increases
Solution Approach 1:
A gas-permeable support element made of porous material is used to stabilize the filter medium bodies during extended operation. The porous structure allows gas flow while providing mechanical support that prevents filter medium material from discharging, thus extending operational durability without increasing material loss
3Stability of the object's composition
If support element is integrated with end plates, then structural stability is improved, but device complexity increases
Solution Approach 1:
The gas-permeable support element is integrated with the end plates by projecting into and being fixedly connected to them, merging multiple functional components into a unified structure. This integration provides structural stability and stabilization of filter medium bodies while avoiding the need for separate complex mounting mechanisms
Data Source
AI summary
A round filter element for filtering gaseous fluid has a particle filter medium body and a separate noxious gas filter medium body arranged concentrically to the particle filter medium body. Particle filter medium body and noxious gas filter medium body surround an inwardly positioned flow chamber. A first common end plate flow-tightly covers a respective first end face of particle filter medium body and noxious gas filter medium body. A second common end plate flow-tightly covers a respective second end face of particle filter medium body and noxious gas filter medium body. A gas-permeable support element is arranged at a wall of the particle filter medium body or of the noxious gas filter medium body. The gas-permeable support element projects into material of at least one of the first and second common end plates and is fixedly connected thereto. A filter device is provided with such a filter element.