Ultraviolet Fluid Sterilizing Box With Nested Cylinders
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Solution Overview
Problem
Existing ultraviolet fluid sterilizing devices face challenges in achieving effective sterilization while maintaining flow rate and minimizing flow resistance, as lengthening the flow channel increases volume and flattening it increases resistance, reducing the effectiveness of UV irradiation.
Innovation Solution
The ultraviolet fluid sterilizing box structure incorporates a partition with an outer and inner cylinder to create separate cavities, allowing fluid to flow spirally and extend the path of UV irradiation, combined with a UV module that emits UV rays directly onto the fluid and outlet to prevent bacterial growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the flow channel is lengthened to prolong irradiating time, then sterilization effect is improved, but volume is increased
Solution Approach 1:
The flow channel is segmented into an outer cavity and an inner cavity by the partition with outer cylinder and inner cylinder. Fluid flows through the outer cavity first, then enters the inner cavity through the opening, creating multiple flow paths that extend irradiation time without proportionally increasing volume.
Solution Approach 2:
The inner cylinder is nested within the outer cylinder, forming a partition structure where the inner cavity is surrounded by the outer cavity. This nested configuration allows fluid to flow through both cavities sequentially, extending the irradiation path within a compact volume.
2Length of moving object
If the flow channel is flattened to decrease irradiating distance, then sterilization effect is improved, but flow resistance is increased and flowrate is reduced
Solution Approach 1:
The flow channel is divided into outer cavity and inner cavity segments, allowing fluid to flow through multiple sections rather than requiring a single flattened channel. This segmentation maintains adequate flow cross-sectional area while achieving sufficient irradiation distance through sequential flow paths.
Solution Approach 2:
Instead of flattening the channel in one dimension, the invention uses a three-dimensional partition structure with outer and inner cylinders. Fluid flows through the outer cavity and then enters the inner cavity, utilizing vertical and radial dimensions to achieve extended irradiation without compromising flow rate.
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
This design enhances the sterilization effect by extending the fluid's path within the box, maintaining a high flow rate, and preventing bacterial growth at the outlet, thereby improving the overall utility and effectiveness of the sterilization process.
Implementation Method 1
The ultraviolet lamp set is arranged on the outer side of the light-transmitting plate, and ultraviolet rays emitted from the ultraviolet lamp set irradiate the inner cavity and the outer cavity
Data Source
AI summary
This disclosure is related to an ultraviolet fluid sterilizing box structure. A box (10) includes a chamber (100), a water inlet (101) and a water outlet (102). The water inlet (101) and the water outlet (102) are located on different sides of the box (10). The partition (20) is disposed in the chamber (100) and includes an outer cylinder (21) and an inner cylinder (22). The outer cylinder (21) includes an outer cavity (210) and an inflow inlet (211). The inner cylinder (22) includes an inner cavity (220) and an opening (221). The ultraviolet module (30) is disposed on one side of the box (10) and includes a light-transmitting plate (31) and an ultraviolet lamp set (32). The light-transmitting plate (31) seals the outer cylinder (21). The ultraviolet rays irradiate the inner cavity (220) and the outer cavity (210).