Filtration Medium Aperture Clogging Prevention via Segmented Flow Channels
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Solution Overview
Problem
Filtration mediums used in fluid isolation methods often experience clogging due to material accumulation and air bubble formation, obstructing fluid flow through apertures.
Innovation Solution
An apparatus and method involving a filtration system with a first and second flow channel, where a liquid medium is used to clean the filtration medium, and the flow rates of the sample and liquid medium are controlled to remove material layers and air bubbles, ensuring efficient particle isolation by size exclusion through a filtration medium with apertures of specific dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If filtration medium is used to isolate particles from fluid, then particle isolation efficiency is improved, but clogging occurs due to material accumulation and air bubble formation in apertures
Solution Approach 1:
The filtration system is divided into multiple channels: a first channel for sample introduction and filtration, a second channel for cleaning fluid introduction, and a third channel for recovered fluid exit. This segmentation allows simultaneous particle isolation and aperture cleaning operations, preventing clogging while maintaining continuous filtration capability.
Solution Approach 2:
The system performs preliminary cleaning action by introducing cleaning fluid through the second channel before clogging occurs. The cleaning fluid flows through the filtration medium apertures to remove accumulated materials and air bubbles, preventing obstruction and maintaining reliable continuous operation.
2Measurement precision
If filtration medium with apertures is used for particle isolation, then separation capability is improved, but flow obstruction occurs due to material accumulation on filtration medium surface
Solution Approach 1:
The system separates the filtration function and cleaning function into different channels. The first channel maintains separation capability by allowing particles to be filtered through the aperture-based filtration medium, while the second channel restores productivity by introducing cleaning fluid to remove material accumulation, thus maintaining high fluid flow rates.
Solution Approach 2:
The system recovers cleaning fluid after it passes through the filtration medium by directing it through the third channel. This recovered fluid can be reused for subsequent cleaning cycles, maintaining continuous high productivity while preserving separation capability.
3Measurement precision
If filtration medium is used to filter fluid, then particle isolation is improved, but air bubbles form in apertures obstructing flow
Solution Approach 1:
The system uses segmented flow channels with dedicated functions: the first channel for particle isolation through the filtration medium, the second channel for introducing cleaning fluid to remove air bubbles, and the third channel for fluid recovery. This segmentation achieves effective particle isolation while managing air bubble removal through a systematic multi-channel approach.
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 method effectively prevents clogging and air bubble formation, enhancing the filtration efficiency by selectively allowing particles of specific sizes to pass through while retaining larger particles, thereby improving the isolation of target particles.
Implementation Method 1
ensuring efficient particle isolation by size exclusion through a filtration medium with apertures of specific dimensions
Data Source
AI summary
Provided are an apparatus for filtering a fluid, the apparatus including a first flow channel and a second flow channel which are connected to each other in a fluid communicable manner via a filtration medium, and a method of isolating particles using the apparatus.