Multi-stage Cyclone Separator Nanoparticle Filtration
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Solution Overview
Problem
Existing particle separation devices, such as filters and cyclone separators, face inefficiencies in separating nanoparticles from gas flows, with filters clogging over time and cyclones requiring additional filters for microparticle removal.
Innovation Solution
A multi-stage cyclone separator device with overlapping blocking means and vortex generators that forces particles to move inward, preventing direct axial conveyance and enhancing filtration efficiency by maintaining a consistent gas flow direction, thereby improving nanoparticle separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If filters are used for particle separation, then separation efficiency is improved, but the filters become clogged with particles over time requiring frequent changes
Solution Approach 1:
The device divides the particle separation process into multiple sequential cyclone stages (first cyclone generator, second cyclone generator, third cyclone generator) with different blocking means positioned at different locations. Each stage handles different particle sizes or concentrations, segmenting the overall filtration task to prevent any single filter element from becoming completely clogged, thereby maintaining separation efficiency while reducing replacement frequency.
2Loss of time
If cyclone separators are used for particle separation, then filter replacement is reduced, but additional particle filters are still required for microparticle removal
Solution Approach 1:
The invention merges the cyclone separation function with the filtration function by integrating blocking means directly within the cyclone generator structure. The blocking means are positioned to intercept particles that have been thrown outward by the vortex, combining the centrifugal separation action with the particle capture function in a single integrated component rather than requiring separate cyclone and filter elements.
Solution Approach 2:
The blocking means serve multiple functions: they block the axial flow path to force inward particle movement, they capture particles thrown outward by the vortex, and they maintain the structural integrity of the cyclone generator. This multi-functionality eliminates the need for additional separate particle filters while achieving comprehensive particle removal including microparticles.
3Measurement precision
If multiple cyclone stages are added to improve nanoparticle separation, then separation efficiency increases, but device complexity increases
Solution Approach 1:
The device employs a nested arrangement where the first cyclone tube encloses the second cyclone tube, which in turn encloses the third cyclone tube. This concentric nesting allows multiple cyclone stages to be integrated within a compact structure, reducing the overall device footprint and complexity while maintaining the benefits of multi-stage nanoparticle separation.
4Measurement precision
If blocking means are positioned to force inward particle movement, then particle separation efficiency is improved, but gas flow direction changes may occur
Solution Approach 1:
The blocking means are positioned and shaped to work in conjunction with the curved vortex flow path. The blocking means force particles inward along the curved flow trajectory rather than creating sharp directional changes. The vortex generator and cyclone tube geometry guide the gas flow in smooth curved paths, maintaining flow stability while achieving effective particle separation through the combined action of centrifugal force and inward blocking.
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 device achieves more efficient filtration of nanoparticles by preventing axial conveyance and maintaining a consistent gas flow direction, reducing clogging and the need for frequent filter changes, and effectively separating particles down to sizes smaller than 1 micrometer.
Implementation Method 1
gas to be filtered is forced to rotate in a vortex, wherein the particles are thrown out towards the sides where they are separated
Implementation Method 2
particles are thrown out towards the sides where they are separated
Implementation Method 3
the first blocking means overlaps the further inlet seen in the direction of the length axis so that the particles after the passage of the vortex generator in the first cyclone generator has to be moved inwards towards the length axis
Implementation Method 4
a first cyclone generator comprising a first cyclone tube with a length axis and a first blocking means arranged so that an annular first inlet is arranged between the first cyclone tube and the first blocking means
Data Source
Figure 1
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AI summary
A device (1) for separation of particles from a flow of gas is described. The device (1) comprises a first cyclone generator (6) comprising a first cyclone tube (8) with a length axis (4) and a first blocking means (9) arranged so that an annular first inlet (10) is arranged between the first cyclone tube (8) and the first blocking means (9). A first vortex generator (11) is arranged in the first inlet (10). The device comprises a further cyclone generator (12) comprising a further cyclone tube (13) with a length axis (4) and a further blocking means (14) arranged so that an annular further inlet (15) is arranged between the second cyclone tube (13) and the further blocking means (14), and a further vortex generator (16) arranged in the further inlet (15), and an outlet tube (22) comprising an outlet (23) and a length axis (4), which outlet tube (22) is arranged concentric in relation to the second cyclone tube (13). The first blocking means (9) overlaps the further inlet (15) seen in the direction of the length axis (4) and the second blocking means (14) has essentially the same extension as the outlet (23) seen in the direction of the length axis (4). The further cyclone generator (12) is arranged between the first cyclone generator (6) and the outlet (23).