Atomisation Device Turbulence Shield Droplet Control
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Solution Overview
Problem
Conventional atomization devices struggle to control droplet size and distribution, resulting in undesirable moisture precipitation on surfaces, which can damage sensitive materials or initiate corrosion.
Innovation Solution
A sputtering device with a turbulence shield featuring a horizontal and inclined wall portion above the nebulizers, an acceleration prism, and a pressure device to deflect and separate larger droplets, generating a dry steam with droplets smaller than 1 micron, and a draft flow to enhance aerosol dispersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional atomization devices are used to generate liquid mist, then liquid can be dispersed into the environment, but the droplet size and distribution cannot be controlled, resulting in large droplets that form moisture films on surfaces
Solution Approach 1:
The atomization device is divided into multiple functional chambers: a first atomization chamber with a first nebulizer for generating fine droplets, and a second atomization chamber with a second nebulizer for additional atomization. This segmentation allows progressive reduction of droplet size through multiple stages, ensuring droplets remain below 1 micron and prevent moisture film formation on surfaces.
2Quantity of substance
If ultrasonic transducers are used to sputter liquid, then small droplets are produced, but larger droplets are also generated causing high precipitation on surfaces
Solution Approach 1:
A hydrophobic coating is applied to the inner walls of the atomization chambers as an intermediary layer. This coating causes larger droplets to coalesce and slide down the walls into collection areas, while allowing fine droplets to pass through. This mediator selectively removes harmful large droplets without affecting the beneficial fine mist, preventing surface moisture accumulation.
3Object-affected harmful factors
If the droplet size is reduced to less than 1 micron, then moisture film formation is minimized, but the device complexity increases with additional components
Solution Approach 1:
Multiple nebulizers are integrated into a single device with shared structural components. The first and second atomization chambers are connected, with the second chamber receiving liquid from the first. This merging approach achieves enhanced droplet size control through multiple atomization stages while minimizing overall device complexity through component integration and shared structures.
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 reduces the average droplet diameter to less than 1 micron, producing a dry steam that minimizes moisture film formation on treated surfaces, preventing rusting and corrosion, without the need for heating the liquid.
Implementation Method 1
a device for deflecting the liquid vapor or mist (5) is provided, which is arranged in the region above the liquid surface, wherein a turbulence shield (50) is formed as the device for deflecting the liquid vapor or mist (5)
Implementation Method 2
in the region of the outlet opening an acceleration prism is formed, which projects beyond the liquid level and so is arranged, that a cross-sectional constriction of the sputtering chamber is formed
Implementation Method 3
a pressure device is moved in the direction of the outlet opening
Implementation Method 4
at least one nebulizer for sputtering the liquid into liquid droplets
Data Source
AI summary
Atomisation device with an atomisation chamber (1, 2, 1') for receiving a liquid and at least one atomiser (3, 4, 3') for atomising the liquid into liquid droplets as well as an exit opening (30) for the exit of the liquid vapour or liquid mist thus generated from the atomisation chamber (1, 2, 1'), wherein at least one device for deflecting the liquid vapour or liquid mist (5, 5') is provided and is arranged in the area above the liquid surface.