Perpendicular Nozzle Assembly for Insecticide Sprayer
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Solution Overview
Problem
Current insecticide sprayers face challenges in effectively dispersing larvicides, adulticides, and barrier repellents over large areas, particularly in mosquito-infested regions, as they often result in droplets of varying sizes that do not maximize coverage and range due to limitations in nozzle orientation and airflow interaction.
Innovation Solution
The design incorporates a nozzle assembly with nozzles oriented perpendicular to airflow, a blower assembly for dispersing atomized fluid, and an adjustable valve to regulate fluid pressure, allowing for different volumetric flow rates and spray patterns, enabling efficient distribution of insecticides and repellents by adjusting nozzle configurations and airflow direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If nozzles are oriented parallel to airflow direction, then fluid discharge is simplified, but droplet size increases and coverage range decreases
Solution Approach 1:
The nozzle assembly is oriented perpendicular to the airflow direction generated by the blower assembly, rather than parallel to it. This inversion of the conventional orientation allows the atomized fluid to be discharged across the airflow path, creating a wider dispersion pattern and increasing the effective coverage range of the sprayer system.
Solution Approach 2:
The nozzle assembly is positioned and oriented to discharge atomized fluid in a direction perpendicular to the airflow, adding a dimensional component to the spray dispersion. This creates a two-dimensional dispersion pattern rather than a linear one, significantly expanding the coverage area and effective range of the insecticide application.
2Productivity
If fluid pressure is increased to improve dispersal, then coverage area increases, but droplet size increases reducing effectiveness
Solution Approach 1:
The fluid delivery system is divided into multiple nozzle assemblies, each discharging atomized fluid through multiple individual nozzles. This segmentation allows the total fluid flow to be distributed across many small droplet streams, maintaining fine droplet size while achieving wide area coverage through the combined effect of multiple discharge points arranged in a array configuration.
Solution Approach 2:
The blower assembly acts as an intermediary between the nozzle assembly and the environment, generating airflow that carries the atomized fluid from the nozzles and disperses it across the target area. This intermediary airflow mechanism enables wide dispersal coverage without requiring high fluid pressure, thereby maintaining small droplet size and application effectiveness.
3Device complexity
If single fluid type is used in tank, then system simplicity is maintained, but versatility for different insecticides is limited
Solution Approach 1:
The nozzle assembly is designed with universal compatibility to handle different types of insecticides including larvicides, adulticides, and barrier repellents. The perpendicular orientation and atomization capability of the nozzles work effectively with various fluid viscosities and formulations, allowing a single tank and nozzle system to serve multiple insect control functions without requiring separate specialized equipment for each insecticide type.
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 reduces droplet size, increases the effective range of the sprayer, and allows for targeted application, enhancing the coverage and dispersal of insecticides and repellents, thereby improving mosquito control without the need for low-flying aircraft.
Implementation Method 1
a nozzle assembly in communication with the tank to receive fluid therefrom and to atomize the fluid
Implementation Method 2
a blower assembly positioned upstream of the nozzle assembly for dispersing the atomized fluid from the nozzle assembly into the surroundings of the fluid sprayer
Data Source
AI summary
A method of operating a fluid sprayer includes dispersing a first fluid selected from a group consisting of larvicide, adulticide, and a barrier repellant from the fluid sprayer with a first nozzle assembly at a first volumetric flow rate, replacing the first nozzle assembly with a second nozzle assembly, and dispersing a second fluid selected from the group from the fluid sprayer with the second nozzle assembly at a second volumetric flow rate different than the first volumetric flow rate.