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Single-phase internal shearing nozzle for shearing and thinning fluid atomization

An internal shear and nozzle technology, applied in the direction of injection device, injection device, etc., can solve the problems of high viscosity, complex and variable rheological characteristics, difficult to ensure atomization effect, etc., to reduce apparent viscosity, high reliability, simple structure

Active Publication Date: 2021-09-28
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high viscosity and complex and changeable rheological properties of this type of shear thinning fluid, it is difficult to ensure a good atomization effect using traditional pressure nozzles

Method used

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  • Single-phase internal shearing nozzle for shearing and thinning fluid atomization
  • Single-phase internal shearing nozzle for shearing and thinning fluid atomization
  • Single-phase internal shearing nozzle for shearing and thinning fluid atomization

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] see Figure 1-Figure 6 , the embodiment of the present invention discloses a single-phase internal shear nozzle for atomizing shear-thinning fluid, including:

[0034] The upper nozzle inlet part 1, the upper nozzle inlet part 1 has a first liquid channel 101 running through its upper and lower surfaces inside;

[0035] The lower nozzle outlet part 2, the lower nozzle outlet part 2 has a second liquid channel 201 and a spray outlet hole 202 communicati...

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Abstract

The invention discloses a single-phase internal shear nozzle for shearing and thinning fluid atomization. The nozzle comprises an upper nozzle inlet piece, a middle internal shear piece and a lower nozzle outlet piece, wherein the middle internal shear piece is arranged between the upper nozzle inlet piece and the lower nozzle outlet piece. According to the one-way internal shearing nozzle, due to the arrangement of the middle internal shearing piece, liquid can be sheared for multiple times, the viscosity of fluid near an outlet of the nozzle is reduced, instability and breaking of liquid jet are enhanced, the atomization effect is improved, and the nozzle is simple in structure, high in reliability and convenient to maintain.

Description

technical field [0001] The invention relates to the technical field of atomizing nozzles, in particular to a single-phase internal shearing nozzle for atomizing shear-thinning fluids. Background technique [0002] A large number of non-Newtonian fluids exist in human production and life. For example, common body fluids such as blood plasma and lymph, as well as asphalt slurries and starch pastes are all non-Newtonian fluids. For example, gel propellants used in rocket engines, etc. also belong to the category of non-Newtonian fluids. Different from Newtonian fluid, there is no simple linear relationship between shear force and shear deformation rate of non-Newtonian fluid. It is precisely because of the unique rheological characteristics of non-Newtonian fluids that they will exhibit some behavioral characteristics different from Newtonian fluids when flowing, such as climbing rod effect, tubeless siphon and turbulent drag reduction, etc., which also make non-Newtonian flui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B1/34
CPCB05B1/34
Inventor 富庆飞杨立军李鹏辉方子玄
Owner BEIHANG UNIV