Filtration Module Feed Channel Layout for Faster Backwashing
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Solution Overview
Problem
Existing filter systems face inefficiencies due to long flow paths, pressure drops, poor fluid distribution, and incomplete cleaning of filter surfaces, particularly in systems relying on backflushing and filtrate use, which reduces machine efficiency and increases process times.
Innovation Solution
A method and module design with separate feed channels for fluid intake and discharge, allowing direct fluid flow through filter elements without filtration, combined with efficient backwashing procedures, and the use of hollow fiber membranes for thorough cleaning, minimizing flow paths and enhancing homogeneous distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backflushing is used to clean filter elements, then filter cleaning is achieved, but flow path length increases and pressure drop increases
Solution Approach 1:
The feed line is divided into at least two separate feed channels: a first feed channel for conveying fluid to the filter device and a second feed channel for discharging fluid from the filter device. This segmentation allows the cleaning fluid to flow directly from the first feed channel through the filter element to the second feed channel, significantly shortening the flow path compared to traditional backflushing methods that require filling the entire filtrate channel.
Solution Approach 2:
The invention extracts and eliminates the need for complex filtrate channel filling procedures by using a simplified direct flow path through separate feed channels. The cleaning function is achieved by utilizing the feed channels themselves rather than requiring separate filtrate circulation systems.
2Reliability
If backflushing with filtrate is used, then filter cleaning is achieved, but machine efficiency decreases and process time increases
Solution Approach 1:
The separate feed channel configuration enables continuous operation by allowing cleaning to occur during normal feed flow without requiring system shutdown or complex cycle changes. The first feed channel continuously supplies fluid that passes through the filter element to the second feed channel, maintaining continuous useful action while achieving cleaning.
Solution Approach 2:
The system uses its own feed channels and flowing fluid to perform the cleaning function automatically. The fluid flowing from the first feed channel through the filter element to the second feed channel self-cleans the filter without requiring external cleaning systems or additional process steps.
3Volume of stationary object
If flat membrane filters are used in single flow chamber backwashing, then module compactness is achieved, but flow distribution becomes poor and cleaning effectiveness decreases
Solution Approach 1:
The feed line is segmented into separate first and second feed channels with specific filter inlet areas, creating distinct flow paths that improve fluid distribution across the filter element. This segmentation ensures homogeneous flow distribution while maintaining compact module design.
Solution Approach 2:
Each feed channel has a filter inlet area specific only to that channel, creating localized optimal flow conditions. The first feed channel inlet area and second feed channel inlet area are designed independently to ensure uniform flow distribution across different regions of the filter element.
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
This approach reduces space requirements, minimizes flow losses, ensures thorough cleaning, and maintains efficient operation by avoiding areas of contamination, thus enhancing process efficiency and reducing filter cleaning times.
Implementation Method 1
at least one first feed channel conveys a fluid to the filter device and at least one second feed channel discharges the fluid from the filter device simultaneously
Data Source
Figure 1a~1c
Figure 2a~2d
Figure 3a~3f
AI summary
The invention relates to a method and module for cleaning filter devices (15) of a module for the filtration of fluids (10), in which multiple feed channels (12) supply fluid to the filter device (15) and/or drain from the filter device (15).