介绍催化裂化新型进料喷嘴—— BWJ型喷嘴采用新型旋流雾化结构 ,使催化裂化原料油得到了高质量的雾化。喷嘴冷态雾化试验 ,采用国际先进的相位多普勒粒子分析仪测试其雾化粒径和喷射速度 ,结果表明雾化粒径细小 ,与催化剂相当 ,喷射速度适中。工业应用后 ,轻油收率提高1%～ 3 % ,焦炭产率降低 1%左右 ,经测算每年可增加税后利润约 13 0 0万元。 Introducing a new type of catalytic cracking feed nozzle - BWJ nozzle using a new cyclonic atomization structure, the catalytic cracking feedstock oil has been high-quality atomization. Spray nozzle cold state atomization test, the use of advanced international phase Doppler particle analyzer to test the atomization particle size and jet speed, the results show that the atomization particle size is small, with the catalyst, the jet speed is moderate. After industrial application, light oil yield increased by 1% to 3%, coke yield reduced by about 1%, the estimated annual increase of after-tax profit of about 130 million yuan.