Nanofiber Pouch Filter Self-Pressing Water Purification
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Solution Overview
Problem
Existing portable water purifiers require additional energy sources for filtering, which compromises portability and efficiency in purifying large amounts of water quickly, especially in outdoor or emergency situations where weight and volume constraints are significant.
Innovation Solution
A portable water-purifying pouch with a filter medium made of nanofibers, which uses its own weight to filter water without an additional pressing unit, combining a fiber web layer with a support layer and incorporating a carbon-based filter for enhanced purification and deodorization, allowing for efficient filtration and high water permeability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressing unit is added to improve filtration efficiency, then filtering performance is improved, but device complexity and weight increase
Solution Approach 1:
The filter medium utilizes its own weight to apply pressing force on the target water, eliminating the need for an external pressing unit. The pouch structure allows the filter medium to naturally press against the water as it fills, achieving filtration without additional mechanical components or energy sources.
Solution Approach 2:
The invention changes the physical parameters of the filter medium by using nanofibers with specific pore sizes (0.1-10 μm) and high surface area, which dramatically improves filtration efficiency. The nanofiber structure provides both the necessary filtering capability and the weight required for self-pressing, optimizing the balance between filtration performance and device simplicity.
2Productivity
If filtration time is reduced to purify water quickly, then productivity is improved, but filtration efficiency may be compromised
Solution Approach 1:
The filter medium uses porous nanofiber materials with controlled pore sizes (0.1-10 μm) that allow rapid water passage while effectively blocking bacteria and harmful germs. The high porosity and large surface area of nanofibers enable fast water flow rates without sacrificing filtration efficiency, achieving both quick purification and reliable pathogen removal.
Solution Approach 2:
The filter medium is constructed as a composite structure combining nanofibers with specific polymer materials that provide both mechanical strength and filtration functionality. This composite approach allows the material to maintain structural integrity during rapid water flow while ensuring effective pathogen removal through the nanofiber network.
3Ease of operation
If the pouch structure is used to improve portability, then ease of operation is improved, but mechanical strength may be reduced
Solution Approach 1:
The pouch is constructed from flexible yet strong materials that can be easily carried and deployed. The thin-film structure provides portability while the material selection ensures sufficient mechanical strength to contain water and withstand handling. The flexible nature of the pouch allows it to be compressed for storage and expanded for use, maintaining both portability and structural integrity.
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 pouch effectively filters bacteria and harmful germs with high mechanical strength and chemical resistance, enabling rapid purification of large water quantities while maintaining superior portability due to its lightweight and compact design.
Implementation Method 1
a filter medium having a pouch shape, provided in the body to accommodate and filter the target water introduced into the body, and including a fiber web layer having a three-dimensional network structure formed of nanofibers
Implementation Method 2
water permeability is also superior even using only a weight thereof without an additional pressing unit for filtering target water
Implementation Method 3
high mechanical strength and chemical resistance
Implementation Method 4
incorporating a carbon-based filter for enhanced purification and deodorization
Data Source
AI summary
A portable water-purifying pouch is provided that includes a pouch-shaped body comprising an inlet part, through which water to be treated is introduced, and an outlet part, from which drinking water obtained by filtering the water being treated is discharged and a pouch-shaped filter medium, which is provided inside the body so as to hold and filter the water being treated, which has been introduced into the body, and comprises a fiber web layer having the structure of a three-dimensional network formed of nanofibers. The portable water-purifying pouch allows a large flow rate of drinking water to be obtained in a short time while filtering, with significantly superior efficiency, foreign substances such as bacteria and harmful germs in the water being treated merely by self-weight or by lightly applying pressure with a hand to the water being treated.