Filter Module Skirt Design Eliminates Liquid Stagnation
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Solution Overview
Problem
In filtration systems, particularly in the food industry, there is a need to prevent liquid stagnation that can lead to bacterial proliferation, as it poses a risk to the effectiveness and safety of the filtration process.
Innovation Solution
A filter module design with extended support plates featuring assembly skirts and tangential outlet passages, along with welding beads and rounded connection fillets, ensures that no liquid accumulates, preventing stagnation and ensuring a leak-tight seal without microscopic defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional support plates are used without extensions, then the structure is simple, but liquid stagnation zones occur leading to bacterial proliferation
Solution Approach 1:
The support plate is extended by adding a skirt that protrudes radially outward from the plane of the support plate, creating a three-dimensional structure. This dimensional extension allows the outlet passage to be positioned lower than the support plate surface, eliminating stagnation zones by enabling complete liquid drainage while maintaining structural simplicity.
2Reliability
If outlet passages are positioned away from the support plate, then liquid stagnation is prevented, but the flow section and drainage efficiency are reduced
Solution Approach 1:
By extending the support plate radially outward to create a skirt, the outlet passage can be positioned in a lower plane while maintaining proximity to the filtration area. This dimensional repositioning allows the outlet to be tangential to the support plate surface, optimizing both drainage efficiency and filtration productivity without compromising either objective.
Solution Approach 2:
The outlet passage is designed with a tangential flow section that follows the curvature of the support plate surface. This curved, tangential configuration optimizes fluid flow dynamics by reducing turbulence and maximizing drainage efficiency, thereby maintaining high filtration productivity while preventing liquid accumulation.
3Reliability
If welding is used to join support plate to casing, then a leak-tight seal is achieved, but microscopic defects and rough zones may occur
Solution Approach 1:
The junction between the support plate skirt and the casing is designed with a rounded, curved transition rather than a sharp corner. This curved geometry prevents liquid accumulation in the joint area and, when combined with welding, produces a smooth surface that eliminates microscopic defects and rough zones, maintaining both seal integrity and surface smoothness.
4Adaptability or versatility
If the filter module is installed in various positions, then installation flexibility is improved, but liquid accumulation may occur on the low-positioned support plate
Solution Approach 1:
The radial extension of the support plate creates a three-dimensional structure where the outlet passage is positioned in a lower plane than the main support plate surface. This dimensional arrangement ensures that regardless of the module's installation orientation, gravity will always facilitate liquid flow toward the outlet passage, preventing accumulation on the low-positioned side and maintaining reliability across all installation positions.
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 effectively prevents liquid stagnation, reducing the risk of bacterial growth and ensuring the reliability and safety of the filtration process, particularly in food industry applications.
Implementation Method 1
a bead of welding between the assembly skirt of each support plate and the casing
Implementation Method 2
no liquid can accumulate on the support plate situated in the low position insofar as the liquid is removed via the outlet passage
Data Source
AI summary
The invention provides a filter module comprising an outer casing provided at each end with a respective support plate for supporting at least one filter element for obtaining a filtrate that is recovered via an outlet passage provided in the vicinity of each support plate. According to the invention, each support plate is extended at right angles by an assembly skirt for assembling to the casing.