Multiple Rectifying Plates for Uniform UV Fluid Processing
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Solution Overview
Problem
Existing fluid processing apparatuses using ultraviolet rays face inefficiencies due to clogged hollow fiber membrane filters leading to non-uniform laminar flow rates, and single rectifying plates result in uneven ultraviolet irradiation, affecting processing efficiency.
Innovation Solution
A fluid processing apparatus with multiple rectifying plates perpendicular to the casing's longitudinal axis, which transforms fluid flow into a uniform laminar state, ensuring equal ultraviolet irradiation by adjusting the aperture rate and density of holes in the plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single rectifying plate with small holes is used to change fluid flow from turbulence to laminar, then the processing efficiency is enhanced, but the flow rate becomes non-uniform with high velocity in the center and low velocity near the walls, resulting in insufficient ultraviolet irradiation in the center region
Solution Approach 1:
The single rectifying plate is divided into multiple rectifying plates arranged in sequence. Each plate has holes distributed across its surface, and the combination of multiple plates creates a more uniform velocity distribution throughout the fluid cross-section, eliminating the high-velocity center region that resulted from using a single plate.
2Manufacturing precision
If multiple rectifying plates with holes are provided to achieve uniform laminar flow, then the ultraviolet irradiation becomes equal across the fluid stream, but the device complexity increases
Solution Approach 1:
The rectifying function is segmented into multiple plates rather than using a single complex plate. This segmentation achieves better flow uniformity while keeping each individual plate relatively simple in structure, with holes distributed across the surface.
Solution Approach 2:
Multiple simple rectifying plates are combined in sequence to achieve the cumulative effect of uniform flow distribution. The combination of several plates with distributed holes creates a more effective flow rectification system than a single plate could provide.
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 achieves a more uniform and efficient fluid processing by maintaining a low and consistent laminar flow rate, enhancing the ultraviolet irradiation and processing efficiency across the fluid stream.
Implementation Method 1
a light source for irradiating fluid passing from the fluid inlet pipe through the casing to the fluid outlet pipe with ultraviolet rays
Implementation Method 2
fluid passed through the multiple rectifying plates can become in a laminar flow state whose average flow rate is low, so that the fluid would be equally irradiated with ultraviolet rays
Data Source
AI summary
A fluid processing apparatus includes: a casing having a fluid inlet pipe and a fluid outlet pipe; multiple rectifying plates with holes in parallel with each other provided within the casing on a side of the fluid inlet pipe, the rectifying plates being perpendicular to a longitudinal axis of the casing; and a light source for irradiating fluid passing from the fluid inlet pipe through the casing to the fluid outlet pipe with ultraviolet rays.