Tight coupling ring rectangular hole gas nozzle atomizer capable of improving atomization efficiency

Abstract

The invention provides a tight coupling ring rectangular hole gas nozzle atomizer capable of improving the atomization efficiency which comprises a liquid guide pipe and a lower body arranged on the outer surface of the liquid guide pipe in a sleeved mode; the atomizer comprises an upper body which is a hollow tube body structure and is sleeved outside the lower body, and a closed gas parking space capable of stabilizing the gas pressure is formed between the upper body and the lower body; the inner surface of the upper body end port is a conical surface or a conical-shape surface which is inclined towards the tail end of the liquid guide pipe; the outer surface of the lower body end port is in sealing contact with the conical surface or the conical-shape surface of the upper body througha corresponding cone shape surface, between the contact of lower body and the upper body; and a plurality of rectangular gas nozzles communicating with the outside and the gas parking space are uniformly arranged along the circumference. The rectangular channel can be a two-dimensional contraction type or two-dimensional contraction-expand (laval) type gas nozzle. According to the atomizer, the efficiency for the kinetic energy of the high-speed airflow on the relatively static liquid and liquid drops is improved, and the liquid and the liquid drops are atomized into finer liquid drops.

Description

technical field [0001] The invention relates to the field of pressure gas atomized liquid, in particular to a kind of mixing structure that can strengthen high-speed air flow and low-speed liquid flow to form eddy and turbulent flow, and can improve atomization efficiency and reduce the average diameter of liquid droplets. Gas nozzle atomizer. Background technique [0002] Close-coupled atomizers mostly adopt ring-slit and ring-hole structures. Since the outlet of the gas nozzle is very close to the atomized liquid in the center, the atomization efficiency is greatly improved, and it is widely used in industry. [0003] Improving atomization efficiency, reducing gas consumption, and reducing the particle size of atomized droplets (which become solid powder after cooling) are always the goals pursued by people. In terms of atomization efficiency, the ring-hole atomizer is obviously better than the ring-slit atomizer. The previous ring-hole atomizers mostly use axisymmetric r...

AI Technical Summary

Problems solved by technology

If continuous production is required, the nitrogen source and gas compressor to be configured are very large, and the production cost is greatly increased

Difficult to achieve industrial production

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