Turbid Liquid Decontamination Sheath with Undulating Wall Profile
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Solution Overview
Problem
Existing devices for decontaminating turbid liquids using ultraviolet rays face challenges in achieving effective decontamination without requiring high displacement speeds and high pressures, which necessitate substantial industrial installations.
Innovation Solution
A decontamination device with a sheath having an external and internal wall that delimits an annular circulation space, where a source of ultraviolet rays is positioned coaxially with the circulation space. The external wall features a cylindrical surface with a profile comprising an alternating succession of concave and convex shapes, promoting turbulent flow at low flow velocities and reduced pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spiral external wall surface is used to increase exposure time, then decontamination effectiveness is improved, but the liquid flow becomes laminar and ultraviolet penetration is insufficient
Solution Approach 1:
The external wall surface is designed with a three-dimensional undulating profile featuring alternating convex and concave zones instead of a smooth spiral surface. This curved, undulating geometry creates turbulence in the liquid flow while maintaining compact exposure path length, allowing ultraviolet rays to penetrate effectively through the irregular surface patterns without requiring excessively long exposure distances.
Solution Approach 2:
The invention changes the geometric parameters of the external wall surface from a smooth spiral to an undulating three-dimensional profile with specific convex-concave patterns. This parameter modification transforms the flow regime from laminar to turbulent, enhancing ultraviolet penetration capability while maintaining effective decontamination exposure time.
2Object-generated harmful factors
If high displacement speeds are used to create turbulent flow, then ultraviolet penetration is improved, but high pressures and substantial industrial installations are required
Solution Approach 1:
The undulating three-dimensional surface profile on the external wall creates turbulence through its geometric complexity rather than requiring high flow velocities. The alternating convex and concave zones generate flow separation and mixing at low speeds, eliminating the need for high-pressure industrial installations while maintaining effective ultraviolet penetration.
Solution Approach 2:
The undulating surface profile acts as a passive turbulence generator, creating flow variations and mixing effects similar to vibration without requiring mechanical moving parts or high energy input. The geometric undulations naturally disrupt laminar flow and create turbulent mixing at low velocities, reducing the need for substantial industrial installation infrastructure.
3Device complexity
If a smooth spiral external wall is used, then the device structure is simple, but the liquid flow remains laminar and decontamination is insufficient
Solution Approach 1:
The external wall incorporates a three-dimensional undulating profile with alternating convex and concave zones that are integrated into the structural design. This geometric feature, while adding moderate structural complexity, dramatically improves decontamination effectiveness by creating turbulence and enhancing ultraviolet penetration, far outweighing the benefit of a simple smooth spiral surface.
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 device achieves optimum decontamination of turbid liquids with reduced industrial installation requirements, as it generates turbulent flow at lower pressures and velocities, thereby enhancing efficiency and reducing operational costs.
Implementation Method 1
a source of ultraviolet rays positioned in a central space delimited by the internal wall of the sheath, coaxially with the annular circulation space
Implementation Method 2
the external wall comprising a cylindrical surface facing the annular circulation space having a profile along a generatrix of the cylindrical surface comprising an alternating succession of concave and convex shapes
Data Source
AI summary
The device for decontaminating a turbid liquid, in particular of the food type, includes a sheath extending longitudinally along an axis X, including an outer wall and an inner wall substantially coaxial with each other and delimiting an annular circulation space of the liquid to be decontaminated, a source of ultraviolet rays positioned in a central space delimited by the inner wall of the sheath, coaxially with the annular circulation space, the outer wall comprising a cylindrical surface facing the annular circulation space having a profile along a generatrix of the cylindrical surface comprising a succession of concave and convex shapes alternately.