Apparatus for heat-treating inner side surface of braid for hollow fiber membrane reinforcement for water treatment and braid for hollow fiber membrane reinforcement for water treatment manufactured using the same
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Solution Overview
Problem
Hollow fiber membrane reinforcements in water treatment face issues with low tensile and compressive strength, leading to filtration reliability and water penetration degradation due to impurities and structural weaknesses, and existing heat-treatment methods fail to consistently expand the inner diameter and maintain circularity effectively.
Innovation Solution
An apparatus with a copper or copper alloy heating core and heater system that supplies controlled heat during the weaving process, densifying the inner surface tissue of the braid and expanding the inner diameter while maintaining accurate circularity, enhancing compressive strength and filtration reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a braid is made using filament yarn to increase inner diameter, then water penetration performance is improved, but peeling strength decreases and membrane film becomes easily peeled off
Solution Approach 1:
The patent applies preliminary heat treatment to the braid during the weaving process to densify the inner surface tissue before the membrane film is applied. This preliminary densification creates a better bonding surface that increases peeling strength while maintaining the inner diameter benefits of filament yarn.
Solution Approach 2:
The patent changes the physical state and density parameters of the braid inner surface through controlled heat treatment. By adjusting temperature and treatment time parameters, the inner surface tissue is densified to achieve optimal bonding characteristics for enhanced peeling strength.
2Reliability
If a braid is made using drawing textured yarn to increase peeling strength, then adhesion with membrane film is improved, but inner diameter decreases and water penetration performance is degraded
Solution Approach 1:
The patent applies local quality by treating only the inner surface tissue of the braid with heat treatment, while maintaining the overall structure and inner diameter characteristics of the drawing textured yarn. This localized modification enhances peeling strength without compromising the inner diameter and water penetration performance.
3Stability of the object's composition
If steel wire is used to expand inner diameter and enhance circularity, then structural stability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent replaces the mechanical steel wire system with a thermal field system. Instead of using physical steel wire to maintain circularity and expand inner diameter, the invention uses controlled heat treatment during weaving to achieve the same structural stabilization effect, thereby eliminating the steel wire component and simplifying the manufacturing process.
4Strength
If heat treatment is applied to densify inner surface tissue, then compressive strength and filtration reliability are improved, but energy consumption increases
Solution Approach 1:
The patent implements continuous heat treatment during the weaving process itself, rather than as a separate post-processing step. This continuous action during manufacturing optimizes energy utilization and reduces overall energy consumption while achieving the desired densification and compressive strength improvement.
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 apparatus improves the physical properties of the hollow fiber reinforcement membrane by increasing compressive strength, enhancing filtration reliability, and extending the service life while reducing manufacturing costs through improved water penetration performance.
Implementation Method 1
a heater configured to heat the heating core and to receive electric power through an electric wire coated with a braid
Implementation Method 2
the inner diameter of the braid can be expanded
Implementation Method 3
an apparatus for heat-treating an inner side surface of a braid for a hollow fiber membrane reinforcement
Data Source
AI summary
Disclosed herein are an apparatus for heat-treating an inner side surface of a braid for a hollow fiber membrane reinforcement for a water treatment and a braid for a hollow fiber membrane reinforcement manufactured using the heat-treatment apparatus, wherein a fiber tissue forming an inner side surface of a braid becomes dense, and the inner diameter of the braid can be expanded, and the circularity of the inner and outer diameters can be accurate, and a compressive strength can be increased, whereby the physical property of a reinforcement membrane of a hollow fiber can be enhanced, and a filtration reliability and water penetration can be improved, thus obtaining an increased service life of a product and an economical saving effect.