Nested Cyclone Dust Collector With Integrated Guide Vane
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Solution Overview
Problem
Existing dust collectors with multi-cyclone structures face challenges in reducing height without compromising cleaning performance, efficient air flow between cyclones, and manufacturing complexity, leading to reduced suction power and increased manufacturing costs.
Innovation Solution
A dust collector design where a second cyclone is accommodated within a first cyclone, with a guide vane spirally extended along the inner circumference of the second cyclone to induce rotational flow, eliminating the need for additional guide passages and integrating the guide vane with the cyclone casing and vortex finder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If a second cyclone is arranged within a first cyclone to reduce height, then the height of the dust collector is reduced, but the number of second cyclones must be decreased which deteriorates cleaning performance
Solution Approach 1:
The second cyclone is nested within the first cyclone, with the first cyclone serving as the outer housing and the second cyclone positioned inside it. This nesting arrangement reduces the overall height of the dust collector while maintaining the necessary separation between cyclones for effective operation.
2Reliability
If air passes through the first cyclone before entering the second cyclone, then dust is filtered out, but the flow speed of air decreases making it unable to be efficiently introduced into the second cyclone
Solution Approach 1:
A guide passage is provided at the inlet of the second cyclone to pre-rotate the air flow before it enters the cyclone separation chamber. This preliminary rotation action ensures that air maintains sufficient kinetic energy and proper flow direction after passing through the first cyclone, enabling efficient introduction into the second cyclone.
3Ease of operation
If a tangential inhalation type cyclone structure with a guide passage is used, then air is introduced tangentially, but the passage usability is low and the size of the cyclone decreases increasing entire passage loss
Solution Approach 1:
The guide passage is designed to introduce air from a radial direction into the tangential flow path of the cyclone. This dimensional transition allows air to be efficiently incorporated into the rotational flow without compromising cyclone size or increasing passage loss.
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 configuration reduces the overall height of the dust collector, enhances the separation of fine dust, prevents degradation of cleaning performance, and simplifies the manufacturing process by eliminating the need for additional guide passages and reducing manufacturing costs.
Implementation Method 1
a guide vane spirally extended along an inner circumference of the second cyclone to induce rotational flow to the air introduced to an inside of the second cyclone through an inlet of the second cyclone via the first space
Implementation Method 2
a first cyclone disposed within an outer case to filter out dust from air introduced from an outside
Implementation Method 3
a second cyclone accommodated in the inside of the first cyclone to form a first space between the first cyclone and the second cyclone to separate fine dust from the air introduced to the inside of the first cyclone
Data Source
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AI summary
A dust collector for a vacuum cleaner, including a first cyclone disposed within an outer case to filter out dust from air introduced from an outside thereof and introduce the air from which dust has been filtered out to an inside thereof, a second cyclone accommodated in the inside of the first cyclone to form a first space between the first cyclone and the second cyclone to separate fine dust from the air introduced to the inside of the first cyclone, and a guide vane spirally extended along an inner circumference of the second cyclone to induce rotational flow to the air introduced to an inside of the second cyclone through an inlet of the second cyclone via the first space, wherein the guide vane is integrally provided on the second cyclone.