In order to reduce the atomization particle size of the desulfurization nozzle and explore the effect of air assist on the atomization performance of the desulfurization nozzle

the atomization performance of the selfdesigned air-assisted desulfurization nozzle was tested and analyzed on the spray test platform. The variation of performance parameters such as nozzle pressure

droplet size and spray angle under different operating conditions were obtained. The results show that

when the gas-phase working fluid is not introduced

the air-assisted gas distribution structure has little effect on the spray characteristics of conventional desulfurization nozzles. After a certain amount of gas phase working fluid is introduced

the atomization level of the nozzle is significantly improved. When the gas-liquid mass ratio reaches 0.002

the Sauter mean diameter of droplet may fall below 1 400 μm. With the increase of the gas-liquid mass ratio

the particle size of the atomizing gradually decreases. The intervention of the gas phase working fluid will greatly increase the spray angle by about 20°.