Rotating Dust Collector Structure for Small-Particle Separation
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Solution Overview
Problem
Cyclone-type dust collectors experience a significant decrease in dust collection efficiency as particle size decreases due to the proportional relationship between centrifugal force and particle diameter, leading to inefficient separation of small particles.
Innovation Solution
A dust collector design that utilizes a rotating body within a housing, with a fixed body and a driving device to generate lift, creating separate flow paths and dust collecting chambers to enhance particle separation and collection efficiency, independent of particle size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a porous filter device is used to filter rubbish or debris, then the dust collection efficiency is improved for small particles, but the airflow resistance increases
Solution Approach 1:
The pre-filter unit removes large particles and a significant portion of dust before the air enters the main cyclone separation chamber and subsequently the post-filter. By performing this preliminary filtration action, the load on the post-filter is reduced, allowing it to maintain high efficiency for small particles without requiring excessively fine (and thus high-resistance) filtering media. The system performs filtration in stages, with each stage preparing for the next
Solution Approach 2:
Rather than using a single filter that attempts to capture all particle sizes simultaneously (which would require extremely fine mesh and create high resistance), the system uses multiple filters with progressively finer specifications. The post-filter operates at partial capacity since much of the dust load has already been removed by upstream units, allowing it to achieve high small-particle efficiency without excessive airflow resistance
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 design improves dust collection efficiency by utilizing lift to separate particles, minimizing the reduction in efficiency even for small particles, and increasing the time particles spend within the collector, thereby enhancing overall cleaning performance.
Implementation Method 1
The driving device may be configured to adjust a rotational speed of the rotating body such that lift is greater than a centrifugal force generated according to a rotation of the rotating body
Implementation Method 2
The cyclone-type dust collector uses a centrifugal force to separate particles contained in gas
Data Source
AI summary
A cleaner is provided. The cleaner includes a suction head, a dust collector connected to the suction head, and a fan motor provided to generate a suction force inside the dust collector, wherein the dust collector comprises a housing having an inlet and an outlet, a fixed body arranged inside the housing, and a rotating body rotatably provided between the housing and the fixed body.