催化裂化进料喷嘴压降分级结构对其雾化效果的影响  

Effect of pressure drop grading structure of feed nozzle for catalytic cracking process on atomization

作　　者：闫广豪[1] 李振华 胡小辉[2] 石宝珍[3] 仇性启[1] 于巧玲[1] 

机构地区：[1]中国石油大学,山东东营257061 [2]山东石大科技集团,山东东营257061 [3]中国石化洛阳石化公司设备研究所,河南洛阳471003

出　　处：《石化技术与应用》2008年第2期115-118,共4页Petrochemical Technology & Application

摘　　要：压降是喷嘴雾化的原动力。喷嘴各级结构和雾化原理不同,其雾化效率就存在差异。采用具有不同压降分级结构的喷嘴进行了多种工况下的雾化实验,利用LS-2000型激光粒度仪对雾化场进行了测量。结果表明,喷头段雾化效率明显高于喷嘴其他各段;当喷头段压降占总压降的比值增大时,喷雾粒径变小;当喷头段压降与总压降的比值约为0.7时,喷嘴雾化效率较优。The pressure drop was the driving force of atomization by nozzle.The atomizing efficiency of nozzles was different owing to its different structure and atomization principle.The atomization experiments were carried out by using nozzles with different pressure drop grading structure under different conditions,and the spray field were measured by a LS-2000 type laser particle instrument. The results showed that the nebulization efficiency of the spray head was higher than the other zones of the nozzle.The spr...

关 键 词：催化裂化 喷嘴 雾化 压降 分级 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]