Centrifugal Separator With Segmented Discharge Ports
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional separation devices are inadequate in their separative performance for removing solid substances from gases, particularly fine particles, due to inefficiencies in centrifugal force distribution and airflow dynamics.
Innovation Solution
A separation device comprising a tubular casing with a rotatable rotor and blades, where the rotor and blades rotate together, generating a helical airflow that applies centrifugal force to solid substances, enhancing their separation and discharge through strategically positioned ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional centrifuge with cylindrical confinement wall and rotor blades is used, then the device can separate solid substances from gas, but the separative performance is insufficient
Solution Approach 1:
The centrifugal separation space is divided into multiple stages with intermediate discharge ports. Solid substances are discharged at different radial positions along the centrifugal direction, creating segmented separation zones that improve overall separative performance by preventing re-entrainment of separated particles
Solution Approach 2:
The discharge port is positioned not only in the radial direction but also at specific axial and circumferential locations. This multi-dimensional positioning optimizes the discharge of solid substances by considering the three-dimensional flow patterns and centrifugal force distribution within the separator
2Reliability
If the rotor rotates at high speed to improve separation efficiency, then centrifugal force increases, but pressure loss in the system increases
Solution Approach 1:
The discharge port is strategically positioned upstream in the rotational direction relative to where particles would otherwise be discharged. This preliminary positioning allows particles to be discharged before they complete a full rotation, reducing the required rotational speed and associated pressure losses while maintaining separation efficiency
Solution Approach 2:
The discharge port is located at a specific local region where the balance between centrifugal force and pressure loss is optimized. This localized optimization allows efficient particle discharge without requiring high rotational speeds throughout the entire system
3Loss of energy
If the discharge port is positioned closer to the inlet to reduce pressure loss, then energy efficiency improves, but separation completeness deteriorates
Solution Approach 1:
Multiple discharge ports are positioned at different axial and radial locations. The first discharge port handles particles separated in the initial centrifugal zone, while subsequent ports handle particles separated in downstream zones, ensuring complete separation without requiring the gas to travel the full length of the separator
4Ease of manufacture
If the device structure is simplified to reduce manufacturing cost, then ease of manufacture improves, but separative performance decreases
Solution Approach 1:
The discharge port structure serves multiple functions: it discharges solid substances, influences airflow patterns, and optimizes centrifugal separation. This multi-functionality allows a relatively simple structural form to achieve complex separation objectives without requiring additional specialized components
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 improved separative performance by efficiently discharging solid substances, with a separation efficiency of 50% or greater for particles up to 10 µm, extending the life of air filters and reducing pressure loss in air purification systems.
Implementation Method 1
the rotor and blades rotate together, generating a helical airflow that applies centrifugal force to solid substances, enhancing their separation and discharge
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Separative performance of separating solid substances contained in a gas from the gas is improved. A casing (2) includes a tubular part (20). A blade (4) is configured to rotate together with a rotor (3). The tubular part (20) includes a gas inlet; a gas outlet (22); and a solid substance discharge port (23). The gas outlet (22) is apart from the gas inlet in an axial direction of the tubular part (20) and is in communicative connection with an inside and an outside of the tubular part (20). The solid substance discharge port (23) is aligned with the gas outlet (22) in a direction along an outer periphery of the tubular part (20). The blade (4) has a first end adjacent to the gas inlet and a second end (42) adjacent to the gas outlet (22). The casing (2) has a space extending to the solid substance discharge port (23) with respect to the second end (42) of the blade (4) in the axial direction of the tubular part (20). A separation device (1) further includes a discharge tubular part (5). The discharge tubular part (5) has an inner space (50) in communicative connection with the solid substance discharge port (23) and protrudes from an outer peripheral surface (27) of the tubular part (20).