Segmented Filter Element With Support Plates For Fluid Pressure
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Solution Overview
Problem
Existing filter elements with multiple disk filters are prone to bending under fluid pressure, leading to blocked flow paths and potential damage, and cannot be effectively backwashed due to unsupported fine metallic filter meshes.
Innovation Solution
A filter element design featuring filter disks and inner support plates arranged within a housing formed by clamping rings and outer support plates with recesses, which supports the filter mesh against fluid pressure and allows for backwashing by reversing flow direction, ensuring the filter element remains robust and easily disassemblable for cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple disk filter elements are stacked to increase filter surface area, then the effective filtration capacity is improved, but the filter elements become prone to bending under fluid pressure
Solution Approach 1:
The filter element is divided into multiple individual disk filters stacked together, with each disk supported by inner and outer support plates. This segmentation allows the filter surface area to be increased through stacking while each individual disk maintains structural stability through the support plate architecture.
Solution Approach 2:
Inner support plates and outer support plates are introduced as intermediary structures between the filter disks and the housing. These support plates distribute the fluid pressure across multiple contact points, preventing the filter disks from bending under pressure while maintaining the stacked configuration.
2Manufacturing precision
If the filter mesh is made fine to improve filtration precision, then the filtering capability is enhanced, but the mesh becomes vulnerable to tearing during backwash
Solution Approach 1:
The fine metallic filter mesh is designed as a flexible thin film that can adapt to the support structure. The mesh is tensioned between the inner and outer support plates, which provide rigid backing that prevents the fine mesh from tearing during backwash operations while maintaining high filtration precision.
Solution Approach 2:
The support plates are positioned beforehand to provide structural reinforcement to the fine filter mesh before backwash pressure is applied. This pre-positioned support structure cushions the fine mesh against the high reverse pressure during backwash, preventing damage while enabling effective cleaning.
3Stability of the object's composition
If the filter element housing is made robust to prevent bending, then structural stability is improved, but the device becomes difficult to disassemble for cleaning
Solution Approach 1:
The housing is segmented into clamping rings, support plates, and filter disks that can be independently removed. This modular segmentation maintains structural stability during operation while allowing easy disassembly for cleaning by removing individual components without damaging the robust housing structure.
Solution Approach 2:
The clamping rings and support plates are designed with dynamic fastening mechanisms that provide rigid structural support during filtration but can be quickly released for disassembly. This dynamic design allows the housing to transition from a stable, pressure-resistant state during operation to an easily disassembled state for maintenance.
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
The design prevents bending during operation, enables effective backwashing, and extends the service life of the filter unit by maintaining flow channels even at high pressures, allowing for efficient filtration and easy maintenance.
Implementation Method 1
the filter disks and the inner support plates are arranged inside a housing which is formed by the clamping rings, by at least one outer ring and by outer support plates provided with recesses and covering the filter disks on the outside. The inner support plates support the filter mesh against the fluid pressure
Implementation Method 2
filter element for filtering a fluid... Contaminants in the plastic melt such as aluminum particles or paper residue are deposited in the filter media of the filter elements
Implementation Method 3
support plates provided with recesses... This allows for a change in the flow direction, i.e., also backwash operation during which build-up is rinsed off the filter disk during the reversal of the flow direction
Data Source
AI summary
A filter element for filtering a fluid comprises a first clamping ring with an outer ring; a first filter disk; a first inner support plate for supporting the first filter disk and which faces to the outside or to an inner flow channel; a second inner support plate provided with recesses; a second filter disk arranged adjacent the second inner support plate; and a second clamping ring which is connected to the first clamping ring by connecting elements. The filter disks and the inner support plates are arranged inside a housing which is formed by the clamping rings, by at least one outer ring and by outer support plates provided with recesses and covering the filter disks on the outside.