Nozzle Spray Angle Control Rim Design
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Solution Overview
Problem
The mixing of water and dust in mixers used for removing gaseous pollutants from process gases is often inefficient, leading to less effective pollutant removal.
Innovation Solution
A nozzle design featuring a central body with a connecting portion, an atomizing portion, and a sleeve with a spray angle controlling rim, which forms droplets of liquid and controls the spray angle, reducing dust aggregation and ensuring efficient liquid distribution, even at varying pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the liquid pressure supplied to the nozzle is varied to adjust the amount of liquid atomized, then the liquid flow rate can be controlled, but the spray angle becomes unstable and varies significantly
Solution Approach 1:
The nozzle is divided into functionally independent components: the deflecting plate handles liquid deflection and spray formation, while the separate spray angle controlling rim handles angular control. This segmentation allows each component to be optimized independently, maintaining stable spray angle even when liquid pressure varies.
Solution Approach 2:
The spray angle controlling rim acts as an intermediary element between the liquid flow and the spray output. It mediates the interaction by providing a geometric constraint that determines the spray angle independently of pressure variations, thus stabilizing the spray characteristics while allowing flow rate adjustment.
2Area of stationary object
If the spray angle is widened to improve liquid distribution over a larger area, then coverage is enhanced, but uncontrolled liquid splashing occurs in confined spaces
Solution Approach 1:
The deflecting plate and spray angle controlling rim create localized control zones. The deflection surface provides localized liquid redirection, while the rim provides localized angular constraint. This local quality control allows precise spray patterning without uncontrolled splashing, even when the overall spray angle is sufficiently wide for adequate coverage.
Solution Approach 2:
The nozzle design changes the physical parameters of the liquid flow through geometric constraints. The deflecting plate angle and rim position are carefully designed to transform the liquid flow into a controlled spray pattern with specific angular distribution, preventing splashing while maintaining adequate coverage area.
3Device complexity
If the nozzle structure is simplified to reduce manufacturing complexity, then cost and fabrication are improved, but dust aggregation occurs more readily in the liquid supply area
Solution Approach 1:
The cleaning chamber is extracted as a separate functional zone defined by the atomizing portion and sleeve central aperture. This extraction allows dust aggregation to be confined to a specific area where it can be effectively managed, while the rest of the nozzle structure remains relatively simple. The flushing effect in this dedicated chamber prevents dust from migrating to critical areas.
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 provides consistent spray characteristics and efficient moistening of absorbent materials, minimizing unwanted water spray on internal structures and maintaining a stable spray angle across a wide range of pressures, thus enhancing pollutant removal efficiency.
Implementation Method 1
arranged in the path of liquid ejected from the second opening to make the liquid flow over a deflection surface of the deflecting plate and form a spray
Implementation Method 2
an atomizing portion forming droplets of the liquid
Implementation Method 3
a spray angle controlling rim which at least partly encircles the atomizing portion in a position located between the second opening and the end portion of the deflecting plate
Implementation Method 4
formation of dust aggregates, in particular in the area of the second opening, is reduced, since a flushing effect that keeps dust away from the area of the second opening is achieved
Data Source
AI summary
A nozzle for spraying a liquid, comprising a central body which comprises a connecting portion for connecting the nozzle to a supply of liquid, an atomizing portion forming droplets of the liquid, and a liquid supply pipe forwarding liquid to the atomizing portion. The nozzle further comprises a sleeve mounted on the central body, the sleeve comprising a central aperture, which at least partly encloses the atomizing portion of the central body, and a spray angle controlling rim which at least partly encircles the atomizing portion.