Wound Filter Module With Segmented Outlet Channels
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Solution Overview
Problem
In fluid processing applications, filter modules are often replaced prematurely due to concerns of contamination from breakthroughs, limiting their full capacity utilization and efficiency.
Innovation Solution
A filter module design featuring wound layers with covered outlet channels, where the filter material ensures fluid communication through the module periphery, preventing contamination and allowing for maximum capacity use, with additional turbidity reduction and pressure drop indicators for service life determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filter modules are replaced prematurely to prevent contamination from breakthroughs, then reliability is improved, but productivity deteriorates due to limited capacity utilization
Solution Approach 1:
The filter module is segmented into two distinct filtration stages: a primary filtration stage using the sheet material body and a secondary safety filtration stage using the filter material at outlet channel openings. This segmentation allows the primary filter to operate at maximum capacity while the secondary filter provides breakthrough protection, resolving the contradiction between reliability and productivity.
Solution Approach 2:
The filter material covering the outlet channel openings is positioned in advance to prevent potential contamination from breakthroughs. This preliminary protective measure allows the primary filtration system to operate at full capacity without fear of contaminating the filtrate, thereby improving productivity while maintaining reliability.
2Reliability
If filter material covers outlet channel openings to prevent breakthrough contamination, then reliability is improved, but device complexity increases
Solution Approach 1:
The filter material is merged with the existing module structure by integrating it into the outlet channel openings during the winding process. The filter material becomes an inherent part of the module assembly rather than a separate component, thus improving reliability without significantly increasing device complexity.
Solution Approach 2:
The filter material serves multiple functions: it provides breakthrough protection, maintains structural integrity of the outlet channels, and can be customized for different filtration applications. This multi-functionality reduces the need for additional separate components, thereby improving reliability while minimizing increases in device complexity.
3Reliability
If additional filter material is added to cover outlet channels, then reliability is improved, but manufacturing complexity increases
Solution Approach 1:
The filter material is prepared and positioned in advance during the module manufacturing process, specifically during the winding of sheet material layers. This preliminary preparation ensures that the filter material is correctly placed before final assembly, simplifying the manufacturing process while maintaining reliability.
Solution Approach 2:
The manufacturing process parameters are optimized to accommodate the filter material integration, such as adjusting the winding tension and layer alignment to ensure proper positioning of the filter material. These parameter changes facilitate easier manufacturing while maintaining the reliability benefits of the covered outlet channels.
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 module achieves enhanced filtration efficiency with over 90% turbidity reduction and negligible pressure drop, while ensuring microbiological safety and extended service life through customizable filter materials and drainage layers.
Implementation Method 1
the fluid will have to pass through the filter material covering the open ends of the outlet channels, thus being filtered prior to reach the periphery of the module
Data Source
AI summary
The present invention relates to a filter module comprising a body of wound layers of sheet material, with an inner and outer peripheral surface, a winding axis and a passage within the body, the sheet material having a plurality of openings forming at least two types of channels within the wound layers, the channels extending in a direction from the inner peripheral surface to the outer peripheral surface, a first type of channels in fluid communication with the outer periphery and closed at the end toward the inner periphery, a second type of channels in fluid communication with the inner periphery and closed at the end toward the outer periphery, the two types of channels separated by portions of sheet material, one of the types of channels being outlet channels and being covered by a filter material.