Nested Parallel Cyclone Assembly for Low-Pressure Vacuum Separation
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Solution Overview
Problem
Existing cyclonic separator assemblies for vacuum cleaners are inefficient in separating small particles from airflow due to high pressure drop and inadequate utilization of cross-sectional area, leading to reduced cleaning effectiveness and increased energy consumption.
Innovation Solution
A cyclonic separator assembly with a cyclone unit featuring a plurality of first and second cyclones arranged in parallel, where the second cyclones are nested between the first cyclones, and inlet paths with specific length ratios to minimize pressure drop and maximize the use of cross-sectional area, enhancing particle separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single cyclone is used in the separator assembly, then the cross-sectional area utilization is low, but the pressure drop is high and particle separation efficiency is insufficient
Solution Approach 1:
The single cyclone is divided into multiple smaller cyclones (first and second cyclones) arranged in parallel. This segmentation increases the total cross-sectional area for particle separation while maintaining lower pressure drop across each individual cyclone, thereby improving overall separation efficiency without excessive pressure loss
Solution Approach 2:
The second cyclones are nested within the first cyclone structure, with the outer perimeter of the second cyclones spaced apart from the inner surface of the first cyclone to define an inlet space. This nested arrangement maximizes the use of cross-sectional area within the available space while maintaining efficient particle separation
2Area of stationary object
If the cyclone unit occupies the entire cross-sectional area, then the inlet space is insufficient, but the particle separation capacity is maximized
Solution Approach 1:
The nested arrangement of second cyclones within the first cyclone structure allows the cyclone unit to occupy a significant portion of the cross-sectional area while maintaining an inlet space between the cyclone outer perimeter and the body inner surface, balancing area utilization with operational requirements
Solution Approach 2:
The inlet space is strategically positioned between the cyclone unit outer perimeter and the body inner surface, creating a localized region with different flow characteristics that facilitates proper airflow distribution to the cyclone inlets while maximizing the overall cross-sectional area utilization
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 solution effectively separates small particles from airflow with reduced pressure drop and increased efficiency, improving the overall cleaning performance and energy utilization of the vacuum cleaner.
Implementation Method 1
cyclonic separator assembly with a cyclone unit featuring a plurality of first and second cyclones arranged in parallel
Implementation Method 2
The plurality of first cyclones and the plurality of second cyclones are arranged in parallel, where the second cyclones are nested between the first cyclones
Data Source
AI summary
A cyclonic separator assembly for use with a vacuum cleaner includes a body having an inlet, an outlet, and an inner surface. The cyclonic separator assembly also includes a cyclone unit positioned within the body between the inlet and the outlet. The cyclone unit has an outer perimeter that is spaced apart from the inner surface of the body to define an inlet space therebetween. The cyclone unit includes a plurality of first cyclones in communication with the inlet space and arranged along an outer circle adjacent the outer perimeter. The cyclone unit also includes a plurality of second cyclones in communication with the inlet space and arranged along an inner circle that is spaced apart from the outer circle such that each second cyclone is nested between two adjacent first cyclones. The plurality of first cyclones and the plurality of second cyclones are arranged in parallel.