Cyclonic separation device
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Solution Overview
Problem
Existing cyclonic separating devices have a non-compact structure, limiting the number of cyclones that can be arranged in a given space and resulting in low cyclonic separation efficiency.
Innovation Solution
A cyclonic separating device with a multi-section cone structure for cyclones, where the first and second cyclone sets are arranged in a ring shape with specific angular alignments, allowing for a compact design that maximizes space utilization and enables more cyclones to be packed in a limited space, enhancing separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional single-section cone structure is used for cyclones, then the structure is simple to manufacture, but the cyclonic separating device has non-compact structure and cannot arrange more cyclones in limited space
Solution Approach 1:
The cyclone structure is divided into multiple cone sections (first cone section, second cone section, third cone section) with different functions. The first cone section performs initial separation, the second cone section with deflected axis performs intermediate separation, and the third cone section completes the separation process. This segmentation allows each section to be optimized for its specific function while collectively achieving compact arrangement and high space utilization.
Solution Approach 2:
The multi-section cone structure allows nested arrangement of cyclones where the second cyclonic separating unit is positioned within the accommodation space formed by the first cyclonic separating unit. The deflected axes of the second and third cone sections enable the cyclones to be arranged in a nested configuration, maximizing the number of cyclones that can be packed into the limited space of the dust cup.
2Productivity
If more cyclones are arranged in limited space, then cyclonic separation efficiency is improved, but the structure becomes less compact and harder to manufacture
Solution Approach 1:
By segmenting the cyclone into multiple cone sections with specific functions, the design achieves high separation efficiency through multi-stage cleaning while maintaining manufacturability. Each cone section can be manufactured using standard processes, and the modular segmentation allows for easier assembly and quality control compared to a single complex structure.
Solution Approach 2:
Different cone sections have different local qualities optimized for their specific separation stages. The first cone section has a geometry optimized for initial separation, the second cone section has a deflected axis for intermediate separation, and the third cone section is optimized for final separation. This local optimization allows each part to be manufactured with standard tolerances while achieving high overall efficiency.
3Volume of moving object
If multi-section cone structure with deflected axes is used, then compact structure and space utilization are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The segmentation into distinct cone sections with defined connection interfaces allows for modular manufacturing and assembly. Each cone section can be manufactured and inspected independently, and the connection structures between sections provide alignment features that reduce the cumulative precision requirements compared to a monolithic deflected structure.
Solution Approach 2:
The nested arrangement of cyclonic separating units with deflected cone sections creates a self-aligning configuration where the accommodation space and positioning features guide the relative positioning of sections during assembly, reducing the precision requirements for manual alignment while achieving compact space 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 compact structure and multi-section cone design allow for increased cyclone arrangement, thereby improving cyclonic separation efficiency and promoting effective dust separation in vacuum cleaners.
Implementation Method 1
The cyclonic separating device is typically used to separate dirt in airflow
Implementation Method 2
When the motor and the fan unit in the body are in operation, the dirt is sucked into the cyclonic separating device through the dusty-air inlet
Data Source
Figure 1~2
Figure 3
AI summary
A cyclonic separating device includes first and second cyclonic separating units. The first cyclonic separating unit is fitted over the second cyclonic separating unit. The second cyclonic separating unit includes first cyclones and second cyclones respectively arranged in a ring shape. Dust falling ends of the first cyclones define an accommodation space therebetween. The second cyclones partially extend into the accommodation space. Each first cyclone comprises first, second and third cone sections, each of which has a cone structure; airflow sucked in the first cyclones is sequentially separated by the first, second and third cone sections, and dust in the airflow is discharged from the third cone section; a central axis of the first cone section is parallel to a longitudinal axis of the dust cup; and an angle between a central axis of the second cone section and a central axis of the third cone section is 5°-20°.