Counter-Rotating Atomization Disks for Fog Droplet Size Control
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Solution Overview
Problem
Existing atomization devices produce fog droplets with uncontrollable particle sizes, leading to inefficiencies in agricultural chemical application, such as loss and contamination, due to unadjustable structure and control parameters.
Innovation Solution
An atomization device with coaxially disposed first and second disks rotating in opposite directions, adjusting the rotating speed of the second disk based on a preset model to achieve a target particle size, using empirical coefficients to determine initial and target droplet sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a centrifugal atomization device is used to produce fog droplets, then atomization can be achieved, but the particle size of the fog droplets is uncontrollable and cannot be adjusted to smaller sizes
Solution Approach 1:
The patent applies dynamics by making the atomization disk rotatable with adjustable rotating speed. The control system allows dynamic adjustment of the rotation speed, enabling the particle size of fog droplets to be controlled and adjusted according to different spraying requirements, thus resolving the contradiction between achieving atomization and controlling particle size.
Solution Approach 2:
The patent changes the parameter of rotating speed of the atomization disk to control the particle size of fog droplets. By adjusting the rotation speed parameter, the system can produce fog droplets of different sizes, achieving both atomization and controllable particle size adjustment.
2Productivity
If the centrifugal atomization speed is increased to reduce fog droplet particle size, then atomization effect improves, but the final fog droplet particle size remains uncontrollable and structure parameters cannot be reasonably adjusted
Solution Approach 1:
The patent incorporates a control system that provides feedback control for the rotating speed of the atomization disk. This allows precise control and adjustment of the rotation speed, ensuring that the fog droplet particle size meets the required precision standards while maintaining effective atomization.
Solution Approach 2:
The system uses dynamic speed adjustment of the atomization disk, allowing the rotation speed to be optimized in real-time to achieve both high atomization effect and precise particle size control, rather than relying on fixed high-speed operation.
3Speed
If fog droplets with large particle size are produced, then kinetic energy and sedimentation speed increase, but the droplets bounce off crop leaves and agricultural chemical liquid cannot effectively adhere
Solution Approach 1:
The patent changes the particle size parameter of fog droplets by adjusting the atomization disk rotation speed. By producing smaller fog droplets through optimized rotation speed, the system reduces bouncing off crop leaves and improves adherence of agricultural chemical liquid, while still maintaining sufficient sedimentation speed for effective coverage.
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
Enables precise control over fog droplet particle size, improving adherence and reducing waste, with adjustable parameters for various spraying conditions.
Implementation Method 1
Liquid atomization methods include pressure atomization, gas atomization, centrifugal force atomization
Implementation Method 2
Atomization means dispersion of liquid into tiny droplets through a nozzle or high-velocity air streams. A plurality of atomized and dispersed droplets can float in the air, thereby increasing a contact area with a sprayed object
Data Source
AI summary
An atomization device spraying method is provided. The atomization device includes a first atomization disk and a second atomization disk that are coaxially disposed and rotate in opposite directions, and the diameter of the first atomization disk is smaller than the diameter of the second atomization disk. The atomization device spraying method includes: obtaining spraying parameters of the atomization device; determining a target particle size DF of target fog droplets; adjusting, based on the spraying parameters and a preset model, a rotating speed N of the second atomization disk to a target rotating speed for outputting the target fog droplets with the target particle size DF, where the preset model is built by at least a secondary atomization factor α determined based on the rotating speed N of the second atomization disk; and performing spraying through the target fog droplets with the target particle size DF.