High Flow Pleated Filter Drum with Reinforced Panels
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Solution Overview
Problem
Conventional pleated filter media is inadequate for large-scale liquid filtration due to deformation and tearing issues at high flow rates, limiting its application in water treatment facilities where high volumes of flow require extensive surface areas.
Innovation Solution
A high flow pleated filter device with a drum and multiple filter panels, featuring a perimeter frame, pleat reinforcing members, and a filter media that maintains pleated shape through integral reinforcement, allowing for increased media normal flow area without increasing land area, and includes a method of manufacturing and installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If conventional pleated filter media is used in large-scale liquid filtration, then the filter media area can be increased, but the pleats deform and tear at high flow rates causing loss of function
Solution Approach 1:
The filter media is divided into multiple pleated panels that are separately supported by a rigid perimeter frame. Each panel is segmented into discrete pleated sections that can be independently supported, preventing deformation propagation across the entire filter surface while maintaining high total filtration area.
Solution Approach 2:
A rigid perimeter frame acts as an intermediary structural element between the high-flow liquid environment and the pleated filter media. This frame provides mechanical support and maintains the geometric integrity of the pleats under high flow conditions, preventing tearing and deformation that would otherwise occur with direct exposure to high-velocity streams.
2Volume of moving object
If pump pressure driven strainers are used, then the equipment size is reduced, but the land area required increases compared to gravity-driven systems
Solution Approach 1:
The filter system transitions from a two-dimensional flat panel configuration to a three-dimensional pleated structure. By folding the filter media into pleats, the surface area is expanded in the vertical dimension while maintaining a compact horizontal footprint, allowing high filtration capacity in a space-efficient configuration suitable for both gravity-driven and pressure-driven applications.
3Productivity
If multiple large drum filters are used to provide sufficient filter media area, then the filtration capacity is increased, but the cost per unit of capacity increases
Solution Approach 1:
Multiple filter panels are merged into a single integrated drum structure, creating one large-capacity filter unit that provides sufficient filter media area for high-volume applications. This consolidation reduces the number of separate filter units needed while maintaining high productivity, thereby reducing overall system complexity and cost per unit of capacity.
4Area of stationary object
If flat panel disc filters are used, then the land area is minimized, but the flow rate is limited compared to pressure-driven systems
Solution Approach 1:
The filter system is designed to operate effectively across a range of flow parameters, from low-flow gravity-driven applications to high-flow pressure-driven applications. The pleated structure and rigid frame enable the same compact unit to handle varying flow rates and pressure differentials, allowing a single design to serve multiple operational regimes without increasing land area.
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 solution enables efficient filtration of high volumes of liquid with reduced pressure drop and increased robustness, allowing for effective filtration in large-scale applications without the need for extensive land area, achieving higher flow rates and reduced turbidity.
Implementation Method 1
the liquid passes through at least a portion of one of the discs
Data Source
AI summary
A filter device is configured to filter a liquid. The filter device includes a drum sized to receive the liquid and a plurality of filter panels coupled to the drum to define a plurality of discs. The liquid passes through at least a portion of one of the discs. Each filter panel includes a perimeter frame that defines a panel normal flow area and a filter media coupled to the perimeter frame. The filter media may be adapted to include a plurality of pleats.