Nebulizer Nozzle Laminar Flow Structure for Fine Droplet Control
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Solution Overview
Problem
Existing nebulizer nozzles suffer from interference with the insecticide flow, leading to turbulent regimes and reduced speed, necessitating high power to disperse small droplets, and lack precise control over droplet size and direction.
Innovation Solution
A nozzle design incorporating a smooth tube and internal base with a restrictor/director, maintaining a laminar flow regime, utilizing a restrictor with angled holes and a smooth tube to break down droplets to 20 microns without significant pressure loss, allowing low-power operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing nebulizer nozzles with internal bases and holes are used, then droplet breakdown is achieved, but pressure loss increases and flow becomes turbulent
Solution Approach 1:
The nozzle is divided into three distinct functional segments: an internal base for initial droplet breakdown, a smooth tube for laminar flow maintenance, and a restrictor/director for precise droplet size control. This segmentation allows each component to perform its specific function without interfering with the others, reducing overall pressure loss while achieving precise droplet breakdown.
Solution Approach 2:
The smooth tube acts as an intermediary element between the internal base and the external environment. It receives the liquid from the internal base and transports it in laminar flow to the outlet, preventing turbulence and pressure loss that would occur with direct exposure to the external environment.
2Manufacturing precision
If existing nozzles with interference elements are used, then droplet dispersion is achieved, but flow speed and reach are reduced
Solution Approach 1:
The harmful interference elements that cause turbulence and speed reduction are extracted from the flow path. The smooth tube provides a clear, obstruction-free passage that maintains high flow speed while the internal base and restrictor/director provide the necessary droplet dispersion function.
Solution Approach 2:
Different parts of the nozzle have specialized local qualities optimized for their specific functions: the internal base has angled holes for initial droplet breakdown, the smooth tube has a polished interior for laminar flow and speed maintenance, and the restrictor/director has precise openings for final droplet size control.
3Manufacturing precision
If high power is used to disperse small droplets through existing nozzles, then droplet breakdown is achieved, but energy consumption increases
Solution Approach 1:
The internal base performs preliminary droplet breakdown action before the liquid reaches the main flow path. By pre-breaking down the liquid into smaller droplets at the source, the system eliminates the need for high power to achieve droplet dispersion later in the flow path.
Solution Approach 2:
The design replaces the need for high mechanical power with a carefully designed flow path that uses laminar flow dynamics and precise geometry to achieve droplet breakdown. The smooth tube and restrictor/director work together to create efficient flow patterns that achieve droplet dispersion without requiring high power input.
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 efficient dispersal of small droplets with precise control over spray pattern and distribution, ensuring effective coverage even with low-power nebulizers.
Implementation Method 1
spray a mixture of gas and liquid into small particles in a laminar regime
Implementation Method 2
Through the inner base the liquid is directed towards the upper outlet. In the outlet region the liquid meets the air at high speed and rotating, favoring its complete breakdown into droplets
Implementation Method 3
In the outlet region the liquid meets the air at high speed and rotating, favoring its complete breakdown into droplets
Data Source
AI summary
The insecticide nebulizer nozzle of the invention comprises a hollow base (1) and body (2), interconnected with each other, with ends (11 and 21) open for liquid/gas inlet/outlet. Said body internally surrounds a restrictor (5), an internal base (6) and a smooth tube (7), which together make it possible to spray a mixture of gas and liquid into small particles in a laminar regime. On the side of the body (1), there is a spigot (8) that allows the insertion of liquid near the inner base (6) of the nozzle. Through the inner base (6) the liquid is directed towards the end (21) of the outlet. After passing through the restrictor (5) and the internal base (6) the liquid meets the air at high speed and rotating, favoring its complete breakdown into droplets. The droplets are displaced by the smooth tube in laminar flow.