摘要
近年来蒸馏装置塔顶管线的低温腐蚀问题愈发严重,大多数现役塔顶的注水喷头结构简单,水雾分散效果差,无法气液混合实现雾化喷注;且当工艺条件发生变化时喷射孔径无法带压调节,喷孔与喷射效果耦合关系未知。为解决上述问题,该文利用SolidWorks开发了基于棘轮结构的带压调节旋拧式喷管结构,可根据需要实现对注水喷头孔径的带压不停工调节,通过CFX仿真结果显示:在塔顶油气流速3.5 m/s,注水速度1.3 m/s时,旋拧至φ18 mm的喷孔处可较现役瘪头喷管提升喷射分散效果61.7%,可极大降低注水用量,实现节能减排。
In recent years,the problem of low-temperature corrosion of the tower top pipeline of the distillation unit has become more and more serious.Most of the current tower top water injection nozzles have simple structures,and the water mist dispersion effect is poor.When the process conditions change,the injection aperture cannot be adjusted with pressure,and the coupling relationship between the injection hole and the injection effect is unknown.In order to solve the above problems,this paper uses SolidWorks to develop a pressure-adjusted screw-type nozzle structure based on the ratchet structure,which can be realized according to the needs of the working conditions.The pressure of the water injection nozzle diameter is adjusted without stopping.The CFX simulation results show that when the oil and gas flow rate at the top of the tower is 3.5 m/s and the water injection speed is 1.3 m/s,screw it to the nozzle hole ofφ18 mm,the spray dispersion effect can be improved by 61.7%compared to the current service,greatly reducing the amount of water injection and achieving energy saving and emission reduction.
作者
潘隆
Pan Long(SINOPEC Research Institute of Safety Engineering co.,Ltd.,Qingdao,Shandong 266000,China)
出处
《石油石化绿色低碳》
CAS
2023年第3期35-42,共8页
Green Petroleum & Petrochemicals
基金
中国石油化工集团有限公司炼油事业部资助项目(CLY21026)。
关键词
蒸馏塔顶
注水喷头
喷孔调节
气液仿真
distillation tower top
water injection nozzle
nozzle adjustment
gas-liquid simulation
