Nested Two-Stage Cyclone Dust-Air Separator to Reduce Component Count
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Solution Overview
Problem
Conventional two-stage dust-air separation structures in dust collectors require numerous components and complex assembly processes, leading to air and dust leakage, occupy excessive space, and are not suitable for mini or portable collectors, limiting their application scope.
Innovation Solution
A two-stage dust-air separation structure incorporating a cyclone separator and a spiral dust-air separation device, where the cyclone separator performs the first stage separation and the spiral device enhances second-stage separation with centrifugal force, reducing component count and assembly complexity while minimizing space occupation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional two-stage cyclone structure with multiple cone bodies and partition plates is used, then dust-air separation function is achieved, but the number of components increases and assembly process becomes complicated
Solution Approach 1:
The patent combines multiple cone bodies and cyclone partition plates into a single integrated cyclone body structure. The first-stage and second-stage separation functions are merged into one unified component with internally defined separation zones, eliminating the need for multiple separate parts and complex assembly procedures while maintaining effective dust-air separation functionality.
Solution Approach 2:
The cyclone body is designed as a multi-functional component that simultaneously performs first-stage dust-air separation, second-stage dust-air separation, and dust collection storage. This universal structure replaces multiple specialized components, reducing overall device complexity while achieving comprehensive separation functionality.
2Reliability
If multiple layers of cone bodies and cyclone partition plates are axially stacked, then dust separation is achieved, but the filter structure occupies large space and reduces dust storage volume
Solution Approach 1:
The patent implements a nested structure where the second-stage separation zone is positioned inside the first-stage separation zone of the cyclone body. This nested arrangement allows both separation stages to coexist within a compact volume, maximizing dust storage space while maintaining effective two-stage separation functionality.
Solution Approach 2:
Instead of axially stacking cone bodies in a linear arrangement that consumes vertical space, the patent transitions to a radial and volumetric arrangement within the cyclone body. The separation zones are organized in three-dimensional space with optimized radial and axial dimensions, reducing overall height and maximizing dust storage capacity.
3Reliability
If a conventional two-stage dust-air separation type dust cup structure is used, then separation function is achieved, but the dust cup requires relatively high size and large volume, limiting applicability to mini and portable collectors
Solution Approach 1:
The integration of first-stage and second-stage separation functions into a single cyclone body creates a compact, space-efficient structure that can be adapted to various dust collector sizes. This merged design reduces the overall footprint and volume requirements, enabling application in mini and portable dust collectors while maintaining effective two-stage separation performance.
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 simplifies assembly, reduces space usage, enhances dust collection efficiency, and allows the structure to be applicable to various dust collector types and sizes, achieving maximum dust storage volume and improved performance.
Implementation Method 1
dust in the airflow is driven by a centrifugal force to rotate downwardly to the barrel bottom
Implementation Method 2
the spiral dust-air separation device is arranged at a barrel opening of the second-stage cyclone barrel... at least part of the dusty air is guided by the air-intake duct to the spiral dust-air separation device and is guided by the spiral dust-air separation device to form, on an inner wall of the second-stage cyclone barrel, an airflow rotating towards the barrel bottom
Data Source
AI summary
A two-stage dust-air separation structure includes a cyclone separator and a spiral dust-air separation device. A first stage separation of dust from air is realized by a cyclone housing, and by arranging a second-stage cyclone barrel 5 inside the cyclone housing and arranging the spiral dust-air separation device at a barrel opening of the second-stage cyclone barrel, the dusty air, after going through the first stage separation, is guided by the spiral dust-air separation device to form, on an inner wall of the second-stage cyclone barrel, an airflow rotating towards the barrel bottom, and the dust in the airflow is driven by a centrifugal force to rotate downwardly to the barrel bottom and be collected in a second-stage dust collecting space, and the air in the rotating airflow is extracted by the negative pressure, thereby realizing a second stage separation of dust from air.