Wet Dust Collector Spray-Hole Layout for Fine Dust Separation
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Solution Overview
Problem
Existing dust collectors for vacuum cleaners, particularly those using centrifugal force, struggle with separating fine dust particles, leading to air permeability issues and filter blockages, and wet separation methods face challenges with uneven liquid droplet distribution and generation efficiency.
Innovation Solution
A wet separation type dust collector with a dust collecting unit and water storage unit, featuring multiple liquid droplet spray holes of varying diameters along the side wall, which automatically spray liquid droplets using vacuum pressure, ensuring even distribution and improved separation efficiency without a separate spraying mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If centrifugal force is used to separate dust particles, then separation of heavy dust particles is achieved, but fine dust particles cannot be separated effectively
Solution Approach 1:
The dust collection process is segmented into two stages: first, the cyclone separator handles heavy dust particles using centrifugal force; second, the water basin handles fine dust particles using wet separation. This segmentation allows each component to specialize in a specific particle size range, resolving the contradiction between handling heavy particles efficiently and capturing fine particles effectively.
Solution Approach 2:
Water is introduced as an intermediary substance in the dust collection process. The water droplets act as a mediator that captures fine dust particles through cohesion and adhesion forces, enabling the separation of particles too light to be separated by centrifugal force alone. This intermediary approach resolves the limitation of centrifugal separation for fine particles.
2Reliability
If fine dust particles are not separated, then air permeability is maintained, but fine dust particles block prefilter and exhaust filter
Solution Approach 1:
The water basin performs preliminary separation of fine dust particles before the air reaches the prefilter and exhaust filter. By removing fine dust particles in advance through wet separation, the system prevents subsequent filter blockage while maintaining air permeability throughout the system.
3Productivity
If liquid droplets are generated at the base portion, then fine dust particles are collected, but liquid droplets are not evenly distributed throughout the upper portion
Solution Approach 1:
The liquid droplet generation approach transitions from a localized base portion (one-dimensional approach) to a distributed system throughout the dust collecting unit (three-dimensional approach). Multiple spray holes positioned at different locations and angles create droplets that distribute uniformly throughout the entire volume of the dust collecting unit, resolving the distribution uniformity issue.
4Productivity
If steam is sprayed onto cleaning surface, then cleaning efficiency is improved, but air passage configuration becomes contaminated
Solution Approach 1:
The wet separation function is extracted from the cleaning head and relocated to a dedicated water basin within the dust collector. This separation ensures that liquid droplets are generated and used for dust separation in the dust collecting unit, keeping the air passages clean while maintaining the benefits of wet separation for fine dust particles.
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 solution effectively separates fine dust particles by generating liquid droplets of various sizes, improving separation efficiency, preventing filter blockages, and ensuring even distribution within the dust collector, while also enhancing the generation and cohesion of dust particles.
Implementation Method 1
multiple liquid droplet spray holes of varying diameters along the side wall, which automatically spray liquid droplets using vacuum pressure
Implementation Method 2
a centrifuge to rotate air containing dust so as to separate dust particles by centrifugal force
Implementation Method 3
water created by liquefaction of the steam enables cohesion of dust and the like
Implementation Method 4
cohesion efficiency of dust by the liquid droplets within the dust collector
Data Source
AI summary
The present invention relates to a wet-separation type dust collector for a vacuum cleaner. Said dust collector comprises: a dust collecting unit for collecting dust discharged from a centrifuging unit, and a water storage unit for producing liquid drops to be sprayed into said dust collecting unit, and said dust collecting unit has a plurality of spraying holes for spraying liquid drops by means of a vacuum pressure created in the inner side of the vacuum cleaner. By the above configuration, the dust collector of the present invention can effectively separate dust particles from the centrifuging unit by evenly spraying liquid drops into the entire interior of the dust container. In addition, the dust collector prevents the backflow of floating dust particles in the dust container by rapidly transferring the dust particles towards the lower side of the dust container.