Atomization Tank Baffle Plates for Brownian Particle Conveyance
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Solution Overview
Problem
Existing spraying devices struggle to generate fine particles with diameters small enough to exhibit Brownian motion, as the direct supply of air disrupts the particle size distribution, leading to the conveyance of larger particles along with fine ones.
Innovation Solution
The proposed spraying apparatus incorporates a specific configuration of ultrasonic vibrators, baffle plates, and a blower to generate and convey fine particles. The baffle plates are arranged to receive liquid columns and conveyance air in a way that creates a swirling flow, separating fine particles from larger ones and ensuring they are conveyed alone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If air is directly supplied to the region where the liquid column collides on the separator, then conveyance air is supplied for conveying fine particles, but the flow is disturbed and particles of relatively large particle diameter are also swept into and conveyed
Solution Approach 1:
The atomization tank is divided into multiple regions: a liquid column generation region where ultrasonic vibrators create liquid columns, a separation region with a separator where liquid columns are separated into droplets and mist, and a conveyance region where air is supplied. This spatial segmentation prevents air from directly disturbing the liquid column collision while still enabling effective conveyance of fine particles.
Solution Approach 2:
The separator acts as an intermediary structure between the liquid column generation region and the conveyance region. It receives liquid columns, separates them into large droplets and fine mist particles, and allows only the fine particles to be conveyed by air, preventing direct air contact with the liquid column collision zone while maintaining particle size control.
2Productivity
If a large volume of conveyance air is supplied to evenly spread fine particles over a broad space, then particle diffusion is improved, but both fine particles and large particles are conveyed together
Solution Approach 1:
Different regions of the atomization tank provide different functions: the separator region provides particle size separation quality, while the conveyance region provides air flow for diffusion. The separator ensures that only fine particles (0.1-2 μm) are available for conveyance, while the conveyance region supplies sufficient air volume for broad space coverage, achieving both particle size selectivity and diffusion capability.
3Manufacturing precision
If complex control is employed to generate only tiny fine particles, then particle size precision is improved, but device complexity and cost increase
Solution Approach 1:
The separator structure enables self-service particle size separation based on physical principles. Liquid columns generated by ultrasonic vibrators naturally separate into large droplets and fine mist when contacting the separator surface, with fine particles being carried away by air flow. This passive separation mechanism achieves precise particle size control (0.1-2 μm) without requiring complex active control systems, reducing both device complexity and operational difficulty.
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 allows for the stable generation and conveyance of a large volume of fine particles with diameters tiny enough to give rise to Brownian motion, without the need for complex control systems or expensive devices.
Implementation Method 1
an atomizing device which is ultrasound vibrating elements plurally arranged widthwise in the atomization tank interior, for atomizing the liquid formulation to generate fine particles
Implementation Method 2
a blower furnished with a blowing element enabled for maintaining predetermined rpm, for blasting into the atomization tank interior, through a blow port provided in the atomization tank, conveyance air that is for conveying the fine particles of the liquid formulation
Implementation Method 3
the first baffle plate is arranged inclined laterally or diagonally downward, directed toward the one widthwise end of the atomization tank... in the atomization tank interior, a large swirling flow is formed over the entire atomization tank
Data Source
AI summary
Spraying apparatus enabling large-volume generation of particles minute to a Brownian-motion engendering level. The spraying apparatus includes a top-paneled atomization tank having blow and send-out ports in the top panel, an atomizing device inside the atomization tank, a blower for blowing air through the blow port into the tank, and first and second baffle plates, respective connection parts of which are connected to the inner side of the top panel. Respective edge parts of the first and second baffle plates lie at predetermined spacings from widthwise-opposing interior surfaces of the atomization tank. The blow port is situated to the one tank widthwise interior-surface side of where the first baffle-plate connection part is connected to the top panel, while the send-out port is situated to the other tank widthwise interior-surface side of where the second baffle-plate connection part is connected.