Separator With Vertical Swirling Flow Guide Unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional separators for drainage water in sewerage systems face challenges with clogging due to the use of screens or filters, and require complex installations with limited transverse space, making them costly and difficult to install in urban environments.
Innovation Solution
A separator design featuring a separation tank with a partition plate and a wedge wire screen that generates a vertical swirling flow, allowing solids to be efficiently separated without clogging, and can be installed with reduced transverse space requirements using a rectangular or elliptical tank shape and inclined wedge wires for enhanced separation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a screen or filter is used to separate solids in drainage water, then separation effectiveness is improved, but the screen is clogged by solids causing maintenance problems
Solution Approach 1:
The patent extracts the screen from the main flow path by positioning it in a calm water region separated from the swirling flow. The screen only captures solids that naturally settle in the calm region, rather than being directly exposed to the high-velocity flow that causes clogging. This allows effective separation while minimizing maintenance needs.
Solution Approach 2:
The patent introduces a calm water region as an intermediary zone between the swirling flow and the screen. This intermediate region allows solids to settle naturally before reaching the screen, reducing the load on the screen and preventing clogging while maintaining separation effectiveness.
2Measurement precision
If a cylindrical screen is used in a conventional separator, then solids separation is achieved, but the structure becomes complex and cost increases
Solution Approach 1:
The patent segments the separation tank into distinct functional regions: a swirling flow region for generating centrifugal force and a calm water region for sedimentation. This segmentation allows the use of a simple linear screen in the calm region rather than a complex cylindrical screen, reducing structural complexity while maintaining separation effectiveness.
Solution Approach 2:
Instead of placing the screen in the high-velocity swirling flow region as in conventional designs, the patent inverts the approach by placing the screen in the low-velocity calm water region. This inversion simplifies the screen structure from cylindrical to linear while improving ease of maintenance.
3Measurement precision
If a horizontal swirling flow separator is used, then solids separation is achieved, but a large installation area in the transverse direction is required
Solution Approach 1:
The patent transitions from horizontal swirling flow to vertical swirling flow, utilizing the vertical dimension for sedimentation. Solids settle downward in the vertical calm water region rather than requiring horizontal space, allowing the separator to be installed in locations with limited transverse space such as above sewer pipes.
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 vertical swirling flow design prevents clogging by allowing solids to be easily swept off the screen, and the wedge wire screen configuration enables efficient separation of fine solids while maintaining high liquid passage efficiency, reducing maintenance needs and installation complexity.
Implementation Method 1
the inflow chamber is provided with a guide unit for forming a vertical swirling flow in the inflow chamber by reversing the influent liquid from the liquid inlet
Implementation Method 2
a screen is provided at the partition plate... separating solids by the screen disposed along a side face of the swirling flow thus formed
Implementation Method 3
the screen is composed of a wedge wire screen in which a plurality of wedge wires with a wedge-shaped cross section are arranged in a vertical direction
Data Source
AI summary
A problem is to solve problems on removal of solids by a screen and on an installation space and pipe connection in a separator. A solution to the problem is as follows. A separator 1, which is a device for separating solids contained in influent liquid, has a separation tank 2; a partition plate 5 partitioning an inside space of the separation tank 2 into an inflow chamber 3 and an outflow chamber 4; a screen 8 provided at the partition plate 5; a liquid inlet 6 formed at the inflow chamber 3; and a discharge outlet 7 formed at the outflow chamber 4; the inflow chamber 3 is provided with a guide unit 9, 10, 10a for forming a vertical swirling flow in the inflow chamber 3 by reversing the influent liquid from the liquid inlet 6; the screen 8 is disposed along a side face of the swirling flow thus formed. This configuration permits the solids to be removed, without clogging the screen with the solids.