Spinning Device Spiral Passage Hollow Fiber
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Solution Overview
Problem
Conventional spinning devices produce hollow fibers with inner lumens arranged vertically, limiting their efficiency in gas or fluid absorption, adsorption, separation, or filtration due to the linear structure.
Innovation Solution
A spinning device with a rotatable tube body and sleeve component, forming a spiral passage through a multi-step jacket tube system, allowing for the creation of hollow fibers with spiral structures that enhance fluid interaction and retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional single-layered spinneret with vertical inner lumens is used, then the manufacturing process is simple, but the absorption, adsorption, separation, or filtration efficiency is limited due to the linear structure
Solution Approach 1:
The patent applies curvature by transforming the conventional linear vertical lumen structure into a spiral configuration. The hollow fiber material features inner lumens that follow a spiral path from the feed solution inlet to the permeate outlet, creating a curved flow path that increases the interaction length between the fluid and the membrane surface, thereby enhancing absorption, adsorption, separation, or filtration efficiency while maintaining a single-step manufacturing process through the spinning device
2Device complexity
If the inner lumens are arranged in a vertical direction only, then the spinning device structure is simple, but the fluid path length is insufficient for efficient mass transfer
Solution Approach 1:
The patent transitions from a one-dimensional vertical lumen arrangement to a three-dimensional spiral configuration. The inner lumens are arranged in a spiral pattern that incorporates radial and axial components, effectively increasing the fluid path length within the same fiber length. This dimensional transformation allows the fluid to traverse a longer path through the membrane, improving mass transfer efficiency without significantly complicating the spinning device structure
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 spiral passage design increases the length of the fluid path, enhancing absorption, adsorption, separation, or filtration efficiency by interfering with gas or fluid flow, thereby improving the performance of hollow fibers.
Implementation Method 1
a hollow fiber membrane or material is made by a single layered or multi-layered spinneret, through a phase inversion method
Data Source
AI summary
A spinning device is disclosed. The spinning device includes a tube body, a sleeve component, a jacket tube and a lid. The tube body has a first through orifice in a vertical direction, the sleeve component has a second through orifice for the tube body to be mounted therein to form a fluid passage in between; the jacket tube has a third through orifice for the sleeve component and the tube body to be mounted therein. A first opening and second opening are formed on the wall of the jacket tube, allowing the second opening to be coupled with the fluid passage. The lid is coupled to one end of the jacket tube, and has a fourth through orifice, allowing the tube body to rotate with respect to the sleeve tube, jacket tube and the lid, thereby making a the hollow fiber having a spiral passage.