摘要
应用国外液滴雾化研究成果,结合流体力学基本原理,分析了KH喷嘴的雾化机理,给出了KH喷嘴的物理模型、理论计算和实验结果,确定了喷嘴结构型式和尺寸。证实了喷嘴的压力降是控制雾化粒度的关键。分析了油品、蒸汽量、喷嘴结构、操作参数等对雾化粒度的影响。提出喷嘴质量的评定标准。总结了使用KH喷嘴厂家的蒸汽量、干气、液体收率以及能耗情况。
Based upon the research achievements of liquid droplet and in consideration of principles of fluid mechanics, the atomizing mechanisms of KH nozzle is analyzed, the physical model of KH atomizing nozzle, theoretical calculation and tests results are given, and the construction and dimensions of atomizing nozzle are determined. It is proved that the pressure drop of the nozzle is a critical factor to control the sizes of atomized droplets. The impact of oil and steam rates, nozzle construction and operating parameters, etc on the sizes of the droplets is analyzed. The standards for assessment of nozzle quality are presented. The steam requirement, dry gas and liquid yields and energy consumption of KH atomizing nozzles are discussed.
出处
《炼油技术与工程》
CAS
北大核心
2008年第11期26-30,共5页
Petroleum Refinery Engineering
关键词
催化裂化
雾化
KH喷嘴
干气收率
fluidized catalytic cracking, atomization, KH nozzle, dry gas yield
