Cyclone Divider Structure for Low-Backpressure Vacuum Filtration
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Solution Overview
Problem
Cyclonic vacuum cleaners often fail to completely remove particulate matter from the air, leading to damage of the suction motor due to residual particles, necessitating the use of additional filters which increase backpressure and maintenance costs.
Innovation Solution
A cyclone chamber design with a plate that separates the cyclone chamber from a dirt collection chamber, allowing for efficient particle removal and reduced backpressure through a parallel array of cyclones, with each cyclone having its own dirt collection chamber and a tangential outlet connecting to the next stage, enhancing rotational momentum and filtration efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter is positioned downstream from the cyclonic cleaning stage to remove residual particulate matter, then the suction motor is protected from damage, but the backpressure increases and maintenance costs increase
Solution Approach 1:
The cyclone assembly is divided into multiple separate cyclones arranged in parallel, each with its own dirt collection chamber. This segmentation allows for more efficient particle removal across multiple stages without requiring a downstream filter, thereby protecting the motor while avoiding the backpressure issues associated with filter systems.
Solution Approach 2:
The cyclonic separation system performs self-filtration through the centrifugal force generated by the cyclones themselves. The tangential outlets and sequential staging allow each cyclone to serve its own filtration function, eliminating the need for additional filter components that would increase backpressure.
2Reliability
If multiple cyclonic stages with multiple cyclones in parallel are used to improve particle removal efficiency, then filtration efficiency increases, but device complexity increases
Solution Approach 1:
Multiple cyclones are combined in parallel configurations within single stages, and multiple stages are merged in series. The manifold system integrates the outlets of multiple cyclones efficiently, allowing high filtration efficiency to be achieved while managing complexity through systematic design patterns.
Solution Approach 2:
The manifold serves multiple functions: it collects exhaust from multiple cyclones, maintains pressure balance across the parallel array, and directs flow to the next stage or motor. This multi-functionality reduces the need for additional components, thereby managing device complexity while achieving high filtration efficiency.
3Manufacturing precision
If a plate divider is used to separate the cyclone chamber from the dirt collection chamber, then particle separation efficiency improves, but the device complexity increases
Solution Approach 1:
The plate divider acts as an intermediary structure between the cyclone chamber and dirt collection chamber. It provides a simple yet effective means of separation, allowing centrifugally separated particles to be directed into the collection chamber while maintaining the cyclonic flow pattern, thereby improving separation efficiency without significant complexity increase.
4Quantity of substance
If the dirt collection chamber extends beneath the plate divider, then the capacity for dirt storage increases, but the volume available for cyclonic action is reduced
Solution Approach 1:
The dirt collection chamber is positioned in the vertical dimension beneath the plate divider, while the cyclone chambers occupy the horizontal and upper vertical space. This dimensional arrangement allows both large dirt storage capacity and sufficient cyclone chamber volume to coexist without significant compromise, as the two functions are separated in different spatial zones.
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 effectively captures particulate matter, reduces backpressure, and extends the lifespan of the suction motor by ensuring cleaner air reaches the motor, while also simplifying maintenance with separate and removable cyclone stages.
Implementation Method 1
a cyclone separator having an outer wall, a fluid inlet downstream from the dirty air inlet and a fluid outlet
Implementation Method 2
The plate, in conjunction with the structure of the cyclone separator, produces a passage that connects the cyclone chamber and the dirt collection chamber in communication such that dirt that enters the cyclone chamber is conveyed to the dirt collection chamber
Implementation Method 3
with each cyclone having its own dirt collection chamber and a tangential outlet connecting to the next stage, enhancing rotational momentum and filtration efficiency
Data Source
AI summary
An indoor vacuum cleaner comprises a dirty air inlet, a handle, a cyclone separator having an outer wall, a fluid inlet downstream from the dirty air inlet and a fluid outlet, a plate having a cyclone chamber surface and positioned to substantially divide the cyclone separator into a cyclone chamber and a dirt collection chamber, each of the cyclone chamber and the dirt collection chamber having an outer wall, the outer wall of each of the cyclone chamber and the dirt collection chamber having an outer perimeter, the dirt collection chamber having a cyclone chamber end spaced from a dirt collection floor, a passage extending between the cyclone chamber and the dirt collection chamber, the passage configured such that separated dirt travels at least outwardly as the dirt travels through the passage and, an air flow motor.