Rotatable Backflush Arm for Continuous Liquid Filtration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing liquid filtration systems face challenges in maintaining continuous operation due to the buildup of contaminants on filter materials, which restricts flow and requires frequent replacement or cleaning, often necessitating system shutdowns for maintenance and repair, especially in high-pressure applications where rigid support structures can hinder access to components.
Innovation Solution
A filtration apparatus with a removable cartridge arrangement that allows for continuous operation by backflushing selected filter elements while maintaining filtered liquid flow, featuring a rotatable backflush conduit arm and support structures that enable easy access for maintenance and replacement of filter elements and backflush components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid welded filter element support structures are used to maintain accurate position in high pressure systems, then structural stability and pressure resistance are improved, but accessibility to back flushing components and maintenance areas deteriorates
Solution Approach 1:
The filtration system is divided into separate modular components: filter elements, support structures, and back flushing components. This segmentation allows individual parts to be accessed, removed, or replaced without disassembling the entire rigid structure, thereby maintaining structural stability while improving accessibility for maintenance.
Solution Approach 2:
The support structures incorporate movable or adjustable elements that can dynamically adapt to maintenance needs. This allows the structure to transition between a stable configuration during operation and an accessible configuration during maintenance, resolving the contradiction between structural rigidity and component accessibility.
2Reliability
If filter material is replaced when contaminants restrict flow, then filtration efficiency is restored, but system downtime increases
Solution Approach 1:
The back flushing component performs preliminary cleaning action on the filter material by reversing flow to dislodge contaminants before they severely restrict flow. This preliminary maintenance action extends the time between filter replacements and reduces system downtime, while maintaining filtration efficiency through periodic cleaning.
Solution Approach 2:
The filter material serves itself by being cleaned through the back flushing mechanism that reverses flow through the same material. This self-cleaning capability restores filtration efficiency without requiring external intervention or system shutdown, thereby reducing downtime while maintaining reliability.
3Productivity
If multiple filter elements are used to allow continuous flow during back flushing, then productivity is maintained, but device complexity increases
Solution Approach 1:
The back flushing component is designed with multi-functionality, serving both as a flow reversal mechanism and as a support structure for multiple filter elements. This universal component enables continuous productivity through multiple elements while avoiding the need for separate complex control systems, thereby managing device complexity.
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
Enables continuous filtration with reduced downtime and easier maintenance by allowing for the removal and replacement of filter cartridges and components, ensuring uninterrupted operation and extending the lifespan of filter materials through efficient contaminant removal and service accessibility.
Implementation Method 1
One approach to cleansing the filter material is to reverse the flow of liquid across the filter material from the direction of flow that normally occurs during removal of contaminants. This reversing of flow which is sometimes referred to as back flushing, operates to dislodge the contaminants that have been collected on the dirty side of the filter material.
Data Source
AI summary
A filter (10) includes a liquid holding vessel (12) with an inlet (14) and an outlet (16). A removable filter cartridge (24) is positionable within the vessel. The cartridge includes a plurality of filter element assemblies (82) each of which includes a plurality of filter elements (86). Filter elements are selectively back flushed through a back flush assembly (26) which includes a positionable back flush conduit arm (28) that rotates in response to a back flush arm shaft (36) that extends in a shaft support (46) of the filter cartridge.