Cyclonic Separator Shroud Layout for Compact Multi-Stage Airflow
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Solution Overview
Problem
Cyclonic separating apparatus with multiple cyclonic separators face space constraints, leading to increased size and potential blockages due to larger particles passing through, which reduces separation efficiency.
Innovation Solution
The arrangement of separate passageways around the inner circumference of the shroud allows for a more compact design by reducing the shroud size and minimizing airflow stagnation, with additional cyclonic separators and collectors efficiently utilizing available space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a single large passageway is provided downstream of the shroud to accommodate multiple cyclonic separators, then the space for passageway is sufficient, but the overall size of the cyclonic separating apparatus increases undesirably
Solution Approach 1:
The single large passageway is segmented into multiple separate passageways, each serving specific cyclonic separators. This segmentation allows the passageways to be arranged in a compact configuration around the inner circumference of the shroud, reducing the overall apparatus size while providing sufficient space for each passageway to function effectively.
Solution Approach 2:
The passageways are arranged in a radial pattern around the inner circumference of the shroud, utilizing the circumferential dimension. This dimensional arrangement allows multiple passageways to coexist in a compact space without requiring a large linear extension, thus reducing the overall apparatus size while maintaining adequate passageway volume.
2Volume of moving object
If the shroud diameter is increased to accommodate the passageway, then sufficient space for passageway is provided, but the compactness of the cyclonic separating apparatus is reduced
Solution Approach 1:
The passageway system is segmented into multiple smaller passageways distributed around the shroud's inner circumference. This segmentation allows the passageways to utilize the radial and circumferential space efficiently without requiring an increased shroud diameter, maintaining compactness while providing adequate passageway space.
Solution Approach 2:
The passageways are positioned in the radial dimension around the shroud's inner circumference rather than extending axially. This dimensional arrangement maximizes space utilization within the existing shroud diameter, avoiding the need to increase the shroud size while still accommodating all necessary passageways.
3Reliability
If through-holes in the shroud are used to prevent larger particles from passing, then blockages are reduced, but smaller particles still pass through causing potential efficiency loss
Solution Approach 1:
The through-holes in the shroud are arranged in multiple separate groups, with each group corresponding to a specific passageway. This segmentation allows for optimized hole distribution and sizing in different regions, maintaining blockage prevention functionality while minimizing the passage of smaller particles that could affect separation efficiency.
Solution Approach 2:
Different groups of through-holes are positioned at different locations around the shroud, with each group tailored to its corresponding passageway's requirements. This local optimization ensures that larger particles are effectively blocked where needed while allowing smaller particles to pass through controlled openings to maintain separation efficiency in downstream cyclonic separators.
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 compact design enhances separation efficiency by reducing blockages and optimizing space usage, allowing for improved airflow and effective collection of dirt and dust across multiple cyclonic stages.
Implementation Method 1
an airflow in which dirt and dust is entrained enters a first cyclonic separator via a tangential inlet which causes the airflow to follow a spiral or helical path within the first cyclonic separator so that the dirt and dust is separated from the airflow
Implementation Method 2
causes the airflow to follow a spiral or helical path within the first cyclonic separator so that the dirt and dust is separated from the airflow
Data Source
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AI summary
There is provided cyclonic separating apparatus (100) comprising a cyclonic separator (112) for separating dirt and dust from an airflow, an inlet (116) to the cyclonic separator (112) and a shroud (122) comprising a wall (124) having a multiplicity of through-holes (126) forming an outlet from the cyclonic separator (112). A plurality of separate passageways (134) are provided immediately downstream of the through-holes (126). By providing such an arrangement, the separate passageways (134) can be located around other parts of the cyclonic separating apparatus (100) inwardly of the shroud (122), allowing for better packaging of the components of the cyclonic separating apparatus (100). This allows the shroud (122) to be reduced in size because some of the space previously required for a single, large passageway can be used for other components of the cyclonic separating apparatus (100); for example, a collector or a cyclone. The reduction in size of the shroud (122) in turn allows for the cyclonic separating apparatus (100) to be more compact.