PETROLEUM PROCESSING AND PETROCHEMICALS ›› 2025, Vol. 56 ›› Issue (4): 148-153.

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COMPARATIVE STUDY ON ATOMIZATION CHARACTERISTICS OF GAS-LIQUID NOZZLE

  

  • Received:2024-10-16 Revised:2024-11-26 Online:2025-04-12 Published:2025-04-02

Abstract: The atomization effects of the throat nozzles was tested through cold model experiments, and the atomization characteristics of the throat nozzles, bubble atomization nozzles, and swirl bubble atomization nozzle was compared and analyzed. The results showed that:the spray particle size decreases with the increase of the mass ratio of gas to liquid (referred to as gas-liquid ratio), and increases with the increase of distance; the spray speed increases with the increase of gas-liquid ratio and decreases with the increase of distance; the spray droplets from the throat nozzle are evenly distributed on the sector, and the spray droplets of the bubble atomization nozzles appears zoning on the sector. The operation stability of the swirl bubble atomization nozzle was poor, and the gas distribution pipe was blocked after using for a period of time. The droplet size, particle size distribution of thebubble atomization nozzles and swirl bubble atomization nozzled,and the spray speed were better than those of the throat nozzles. The conclusions obtained can provide basic experimental data for developing energy-saving and efficient atomizers with low gas-liquid ratio and small particle size.

Key words: gas-liquid nozzle, atomization characteristics, throat nozzle, bubble atomization nozzle, swirl bubble atomization nozzle