Dual-Layer Liquid Filtration for High Flow and Fine Particle Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing water filters suffer from reduced filtration performance and flow rate when filtering larger particles, leading to inefficient use of filtration material and environmental burden due to frequent replacements.
Innovation Solution
A water filter comprising at least two filtration layers, including a nanofiber layer and an activated carbon layer, with the nanofiber layer having smaller pores than the activated carbon layer, allowing for sequential filtration and improved flow direction to optimize filtration efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single filtration layer with small pores is used to filter large particles, then filtration performance is improved, but flow rate is greatly reduced
Solution Approach 1:
The filtration layer is segmented into multiple layers with different pore sizes. The first layer has larger pores to maintain high flow rate, while the second layer has smaller pores to provide effective filtration. This segmentation allows each layer to perform its specific function optimally without compromising the other.
Solution Approach 2:
Different regions of the filtration structure have different pore sizes tailored to specific functions. The outer layer has larger pores suitable for preliminary filtration of large particles, while the inner layer has smaller pores for fine filtration. This local quality variation optimizes both flow rate and filtration performance in different zones.
2Device complexity
If a single filtration layer is used, then device complexity is reduced, but filtration performance is average and material utilization is poor
Solution Approach 1:
The filtration system is divided into two distinct layers, each with optimized pore sizes for specific filtration needs. This segmentation enables the system to achieve superior filtration performance compared to a single layer, while maintaining relatively simple overall structure.
Solution Approach 2:
The filtration system uses a composite structure combining two types of filtration materials with different pore characteristics. This composite approach allows the system to leverage the advantages of both materials - the larger-pore material for high flow and the smaller-pore material for fine filtration - achieving performance unattainable with a single material.
3Reliability
If larger particles are filtered by small pores, then filtration performance is improved, but the filtration material is blocked and flow rate is impaired
Solution Approach 1:
The filtration process is segmented into two stages: preliminary filtration by the first layer with larger pores that allow high flow rate, and fine filtration by the second layer with smaller pores. This segmentation prevents large particles from blocking the smaller pores, maintaining both filtration performance and flow rate.
Solution Approach 2:
The first filtration layer performs preliminary filtration by removing large particles before the liquid reaches the second layer with smaller pores. This preliminary action protects the finer filtration layer from blockage, ensuring sustained flow rate and extended material utilization.
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
Enhances filtration performance and flow rate by utilizing both layers effectively, reducing material waste and environmental impact through optimized layer configuration and replaceable components.
Implementation Method 1
a first filtration layer (120) made of a first material, a second filtration layer (130) made of a second material... the pore size of the first filtration layer (120) is smaller than the pore size of the second filtration layer (130)
Implementation Method 2
a second filtration layer (130) made of a second material... that said second material is activated carbon
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention is related to a liquid filter having a filtration part for filtration of liquid, said filtration part at least comprising a first filtration layer consisting of a first material; and a second filtration layer consisting of a second material, characterized in that the filtration of liquid in the filtration part is in the order of: a first filtration, taking place at said second filtration layer; and a second filtration, taking place at said first filtration layer. The present invention is further related to a method for installing the liquid filter.