A Hollow Cone Bubble Atomizing Nozzle for High Viscosity Non-Newtonian Fluids

Abstract

The invention relates to a hollow conical bubble atomizing nozzle applicable to high-viscosity non-Newtonian fluid. The hollow conical bubble atomizing nozzle comprises an inner connector, an outer connector, a sleeve, a bubble generator, a mixer, a sprayer and a needle-shaped cone; the inner connector is fixed to one end of the mixer by the aid of the sleeve, the sprayer is fixed to the other end of the mixer, the outer connector is fixed onto the mixer, and the bubble generator is arranged in the mixer; the bubble generator comprises a flow guide barrel and a flow guide plate, the flow guide barrel is communicated with the inner connector, an outer flow channel is communicated with the outer connector, a plurality of outer flow guide holes are formed in the flow guide plate, and a plurality of inner flow guide holes are formed in a mixing chamber; the sprayer comprises a sprayer body and a spray nozzle; an outlet circular seam is formed between the needle-shaped cone and a straight section of the sprayer. The hollow conical bubble atomizing nozzle has the advantages that technical problems of poor atomizing effect, high atomizing gas consumption rate and large average fluid drop diameter of an existing nozzle for high-viscosity non-Newtonian fluid are solved, the hollow conical bubble atomizing nozzle is excellent in atomizing quality within a wide flow regulation range, and the average diameter of fluid drops is greatly reduced under the condition of a low gas consumption rate.

Description

technical field [0001] The invention relates to a bubble atomizing nozzle capable of atomizing non-Newtonian fluids, in particular to high-efficiency atomization of non-Newtonian fluids with high viscosity and complex rheological properties, which can form a hollow cone-shaped spray field, and can be applied to such fluids Atomization and combustion device. Background technique [0002] Gel propellant motor has the advantages of high specific impulse of liquid rocket motor, adjustable thrust, multiple starts and solid rocket motor, which are easy to store and transport, and easy to use and maintain. It is one of the research and development directions of missile weapons and space vehicle power systems. However, gel propellants are non-Newtonian fluids, and their high viscosity makes flow and atomization difficult. How to achieve efficient flow atomization has become the key technology for the application of gel propellants. Contents of the invention [0003] In order to s...

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Problems solved by technology

[0003] In order to solve the technical problems of poor nozzle atomization effect, high atomization gas consumption rate and large average droplet size of the existing high-viscosity non-Newtonian fluid, the present invention provides a hollow bubble atomizer suitable for high-viscosity non-Newtonian fluid The nozzle has good atomization quality in a wide range of flow adjustment, and the average particle size of droplets is greatly reduced at a small gas consumption rate

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