Rectifying Device Curved Guide Walls Fluid Flow Stability
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Solution Overview
Problem
Existing coating technologies face disturbances and vortex formation when fluid flows from two guide walls merge, leading to fluctuations in flow rate and potential flocculation of particles, particularly in photoconductor manufacturing processes.
Innovation Solution
A rectifying device with a first and second flow channel member, an inflow section, and guide walls that intersect, guiding the fluid flow to merge smoothly and suppress disturbances, ensuring stable flow and preventing particle flocculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fluid flows from two guide walls merge in a conventional flat configuration, then the flow path is simple, but disturbance and vortex formation occur leading to flow rate fluctuations and particle flocculation
Solution Approach 1:
The closed end of the second flow channel is configured with a curved surface that intersects the axial direction, rather than a flat plane. This curvature allows fluid streams from opposite directions to merge smoothly along the curved surface, preventing vortex formation and flow disturbance while maintaining reliable axial flow in the first flow channel
Solution Approach 2:
The guide walls are extended in the axial dimension to create a three-dimensional merging structure. By making the guide walls intersect the axial direction and forming a curved closed end, the patent transforms the two-dimensional flat merging problem into a three-dimensional solution that eliminates flow disturbance
2Productivity
If a flat closed end configuration is used, then the device structure is simple, but flow rate fluctuations occur due to vortex formation at the merging point
Solution Approach 1:
The curved closed end surface provides a gradual merging path for fluid streams, eliminating sudden flow direction changes that cause vortexes. This ensures consistent flow rate delivery to the coating apparatus, improving both productivity through uniform coating and reliability through stable flow
Data Source
AI summary
A rectifying device including a first flow channel member provided between an inner peripheral wall and an outer peripheral wall; a second flow channel member provided upstream of the first flow channel in a flowing direction of the fluid and being connected with the first flow channel along an entire circumference. The device includes an inflow section at the second flow channel member for fluid to flow into a circumferential area of the second flow channel; a first guide wall in the second flow channel at a position away from the inflow section in a circumferential direction and to guide the fluid flowing toward a first side in the circumferential direction through the second flow channel toward the first flow channel; and a second guide wall in the second flow channel adjacent the first guide wall in the circumferential direction.