Laminate Filter Spacing Member Flow Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Pleated filters often experience uneven fluid flow distribution and surface area obstruction due to pleat deformation and particulate accumulation, leading to increased pressure drop and reduced efficiency.
Innovation Solution
A laminate filter design featuring a spacing member that spaces apart filter element layers to maintain consistent openings across the filter surface, enhancing even fluid flow and reducing surface area blockage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pleated filters are used to increase effective surface area, then flow resistance is reduced and filtering efficiency is increased, but fluid flow distribution becomes uneven across the filter surface
Solution Approach 1:
The filter element is divided into multiple pleats that are separated by spacing members, creating discrete flow channels. This segmentation ensures that fluid is distributed evenly across each pleat surface area, preventing the uneven flow distribution that occurs in conventional pleated filters where some areas receive more flow than others.
Solution Approach 2:
Spacing members are introduced as intermediary elements between adjacent pleats. These spacing members maintain consistent gaps between pleats, act as flow distributors, and prevent pleat deformation. This intermediary structure ensures uniform fluid distribution across the entire filter surface, resolving the contradiction between high surface area and even flow distribution.
2Productivity
If pleats are closely spaced to maximize surface area, then filtering efficiency increases, but pleats deform, collapse, and bunch together under fluid pressure reducing surface area
Solution Approach 1:
Spacing members are pre-installed between pleats during manufacturing to establish predetermined gaps. This preliminary action prevents pleats from deforming or collapsing under future fluid pressure, maintaining the structural integrity and surface area of the filter element throughout its service life.
Solution Approach 2:
The spacing members serve as protective intermediary structures between adjacent pleats, preventing them from touching and deforming under pressure. This intermediary support maintains the pleat configuration and preserves the filter's effective surface area, resolving the contradiction between maximizing surface area and maintaining structural stability.
3Quantity of substance
If particulates collect at pleat corners, then filtering capacity increases, but surface area is obstructed and flow resistance increases
Solution Approach 1:
The spacing members extract or remove the problem of particulate accumulation at pleat corners by physically separating the pleats. This extraction prevents the formation of corner regions where particulates would collect and obstruct flow, maintaining both filtering capacity and flow rate throughout the filter's operational life.
Solution Approach 2:
Spacing members act as intermediaries that eliminate the corner regions between pleats where particulate accumulation occurs. By maintaining consistent gaps between pleats, these spacing members prevent obstruction at critical flow paths, allowing particulates to be captured on the pleat surfaces without blocking the flow channels.
4Volume of moving object
If filter element layers are pressed together to reduce housing space, then device compactness increases, but openings between layers are reduced and flow resistance increases
Solution Approach 1:
The filter element is segmented into multiple layers with spacing members positioned between them. This segmentation creates a compact multi-layer structure that maximizes surface area within limited housing space while maintaining adequate flow channels through the spacing members, resolving the contradiction between compactness and flow rate.
Solution Approach 2:
The filter design transitions from a single-layer planar structure to a multi-layer three-dimensional configuration with spacing members. This dimensional change allows the filter to achieve high surface area and effective flow distribution within a compact volume, resolving the contradiction between housing space and flow rate.
Data Source
AI summary
A filter includes a spacing member and a filter element having two layers laminated together with the spacing member such that the spacing member extends between the filter element layers. The spacing member spaces apart the filter element layers to define an opening between the filter element layers.