Vented Filter Cartridge Upper Flange Design
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Solution Overview
Problem
Filtering systems with air-impermeable filtration media, such as synthetic polyamides and polyethersulfones, face issues with vent erosion and clogging, leading to decreased performance, liquid leakage, and increased maintenance costs due to the need for frequent replacement of components.
Innovation Solution
A filter cartridge design with a vent integrated into the upper flange, featuring a cylindrical extension with a vent that includes a first and second sealed component, allowing for air passage while preventing liquid leakage, which can be easily manufactured and replaced with each cartridge change, eliminating the need for additional maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vent is integrated into a fixed support tube in the filtering system, then degassing is enabled, but the vent suffers from erosion and clogging over time, diminishing system performance
Solution Approach 1:
The vent is merged with the filter cartridge by integrating it into the upper flange, creating a combined assembly where the vent and filtration medium work together as a single replaceable unit. This eliminates the separate fixed support tube vent and ensures the vent is replaced simultaneously with the filtration medium.
Solution Approach 2:
The vent configuration is changed from a fixed support tube integration to a movable flange integration. This parameter change allows the vent to be part of a replaceable assembly rather than a permanent system component, fundamentally changing its service life characteristics.
2Reliability
If the vent is integrated into the filter cartridge's upper flange, then the vent is replaced with each cartridge change eliminating erosion and clogging issues, but the filtration medium must be essentially air-impermeable which complicates the design
Solution Approach 1:
The vent and upper flange are merged into a single integrated component structure. The vent is formed as part of the flange itself, eliminating the need for separate vent components and reducing overall structural complexity despite the advanced filtration medium requirements.
Solution Approach 2:
The upper flange serves multiple functions: it provides structural support for the filtration medium, creates sealed connections, and integrates the vent function. This multi-functionality reduces the need for additional components and simplifies the overall cartridge design.
3Ease of operation
If a fixed support tube with vent is used in the filtering system, then the vent ensures degassing, but replacement of the vent requires specific upkeep and generates additional waste
Solution Approach 1:
The vent maintenance is merged with the routine filter cartridge replacement operation. Since the vent is integrated into the cartridge, both components are replaced simultaneously during regular maintenance, eliminating separate vent upkeep operations and associated waste.
Solution Approach 2:
The filter cartridge replacement operation serves dual purposes: it replaces the filtration medium and simultaneously replaces the vent. This self-service approach uses the existing maintenance routine to handle the vent replacement without requiring additional specialized upkeep.
4Reliability
If the vent is integrated into the upper flange of the filter cartridge, then optimal degassing is ensured with air-impermeable synthetic media, but the manufacturing process must accommodate the integrated vent structure
Solution Approach 1:
The vent and upper flange are manufactured as a single integrated component. This merging allows the vent structure to be formed during the flange manufacturing process itself, eliminating separate assembly steps and simplifying production despite the integrated design.
Solution Approach 2:
The upper flange is constructed using composite material techniques that allow integration of the vent structure within the flange body. This enables complex integrated geometries to be manufactured efficiently using modern composite fabrication methods.
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
Ensures optimal degassing and prevents vent-related issues like erosion and clogging, maintaining filtration quality and reducing maintenance costs by integrating the vent within the filter cartridge, which is easily replaced during routine maintenance.
Implementation Method 1
The cylindrical extension includes a vent configured to facilitate passage of air therethrough
Implementation Method 2
a first and second sealed component, allowing for air passage while preventing liquid leakage
Data Source
AI summary
A filter cartridge (1) comprising a filter medium (2) of cylindrical shape defining a central axis (3), a first flange (4), said first flange (4) being a flange plate which comprises a central opening (5) defining a fluid outlet, a first face (4a) and a second face (4b) opposite the first face (4a), said face (2) being fixed to the second face (4b) of the first flange (4), and a filtering medium (6) extending from said first face (4a) along the central axis and projecting outwardly from said central opening (5), said cylindrical extension (6) having an outer face (6a) and an inner face (6b); characterized in that said cylindrical extension (6) is traversed by at least one vent (7), and in that a first joint element (8) is provided at a first position of the cylindrical extension (6) and a second sealing element (9) is provided on a second position of the cylindrical extension (6), the first joint element (8) being axially offset from the second joint member (9) with respect to the central axis so that said at least one at least one vent (7) is positioned between the first seal member (8) and the second seal member (9) with respect to the central axis (3). Filtration system incorporating such a cartridge.