Stabilized Flow Spray Nozzle for Atomization
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Solution Overview
Problem
High pressure spraying nozzles experience deformed outlet flow geometry and significant energy losses due to contaminated gaseous flows and forced ventilation, leading to incomplete surface coverage and inefficient atomization.
Innovation Solution
A stabilized flow spray nozzle with a metallic main body, filtering means, and a specialized flow stabilizer element, featuring a converging and diverging portion design with a microporous sintered filter and an elastomeric shutter to maintain consistent flow geometry and minimize energy losses, utilizing a Venturi effect to stabilize the atomized liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high pressure spraying is used to achieve atomization, then spray coverage is improved, but flow geometry deformation and energy losses occur due to contaminated gaseous flows and forced ventilation
Solution Approach 1:
The patent applies preliminary anti-action by introducing a flow stabilizer element upstream of the nozzle outlet that pre-counteracts the deforming effects of contaminated gaseous flows and forced ventilation. This stabilizer creates a protective flow pattern that resists external disturbances before they can significantly deform the spray geometry, thereby maintaining energy efficiency while preserving spray coverage.
Solution Approach 2:
The flow stabilizer element acts as an intermediary between the high-pressure liquid flow and the contaminated gaseous environment. It mediates the interaction by creating a stable interface that protects the atomized liquid from direct exposure to deforming gas flows, reducing energy losses while maintaining effective spray coverage.
2Productivity
If high pressure spraying is used to achieve atomization, then spray coverage is improved, but outlet flow geometry becomes deformed
Solution Approach 1:
The flow stabilizer element pre-counteracts geometric deformation by establishing a stable flow pattern upstream. It creates a protective velocity distribution that resists the deforming influence of contaminated gaseous flows, thereby preserving the intended outlet flow geometry while maintaining effective spray coverage.
Solution Approach 2:
The stabilizer element serves as an intermediary structure that maintains the geometric integrity of the outlet flow. It mediates between the high-pressure atomized liquid and the external gaseous environment, protecting the flow geometry from deformation while allowing effective spray dispersion.
3Loss of energy
If flow stabilizer element is added to maintain consistent flow geometry, then energy losses are reduced, but device complexity increases
Solution Approach 1:
The flow stabilizer element is implemented as a porous structure that can be integrated into the nozzle body. This porous design reduces complexity by combining multiple functions (flow stabilization, potential filtration, and structural support) into a single element, thereby minimizing energy losses without significantly increasing device complexity.
Solution Approach 2:
The flow stabilizer element is designed to perform multiple functions simultaneously: stabilizing flow geometry, reducing energy losses, and potentially filtering contaminants. This multi-functionality reduces overall device complexity by consolidating several components into one universal element.
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 nozzle ensures consistent outlet flow geometry, reduces energy losses, and enhances control over water spray volume, while maintaining efficiency even with mixed substances, offering both technical and economic advantages.
Implementation Method 1
filtering means for filtering the water flowing towards the main body
Implementation Method 2
utilizing a Venturi effect to stabilize the atomized liquid
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A stabilized flow nozzle for the atomization of a liquid, comprising a substantially cylindrical metallic main body (10) defining a first longitudinal axis (X) and filtering means (20) to filter the liquid at the inlet thereof. The main body (10) includes an inlet (11) for the liquid to be atomized, a calibrated outlet hole (12) for the atomized and a working chamber (13, 14, 15) extending between the inlet (11) and the calibrated outlet hole (12). The nozzle further comprises a flow stabilizer element (40) to stabilize the flow which outlets from the main body (10) consisting of an annular body (41) coaxially coupled with the latter in the vicinity of the calibrated outlet hole (12). The annular body (41) including a rear face (42) facing the inlet (11), a front face (43) opposite thereto and a plurality of passing-passing-through holes (44', 44", 44"').