进气型式对并联旋风分离器流场的影响  

Influence of Inlet Type on Flow Field of Cyclones in Parallel

作　　者：张爱琴[1] 周建龙 张建广 ZHANG Aiqin;ZHOU Jianlong;ZHANG Jianguang(Department of Aeronautical Manufacturing Engineering,Xi’an Aeronautical Polytechnic Institute,Xi’an 710089,China;Road Header Design Institute,Xi’an Coal Mining Machinery Co.,Ltd.,Xi’an 710018,China)

机构地区：[1]西安航空职业技术学院,航空制造工程学院,陕西西安710089 [2]西安煤矿机械有限公司,掘进机设计所,陕西西安710018

出　　处：《微型电脑应用》2023年第11期73-75,83,共4页Microcomputer Applications

基　　金：陕西省高校青年创新团队—航空关键结构件精确控形控性技术应用创新团队。

摘　　要：采用FLUENT软件模拟催化裂化三旋中并联旋风分离器进气型式的不同对内部流场的影响,主要对比了不同进气型式下入口处的流场分布、分离空间内的切向速度与压降的差异。研究结果表明,采用U型进气型式,分离器压降与速度略大,且比较容易引起环形空间内不利于分离器的二次流动;采用D型进气型式,分离器芯管下口处向内的径向速度较大,容易形成“短路流”。2种进气型式均会造成入口处的涡流,在气固分离过程导致颗粒的沉积以及管道的磨损,其对分离效率的影响有待试验进一步测量。The influence of the inlet type on performance of the parallel cyclones is discussed.The flow field distribution at the inlet under different inlet types and the differences of tangential velocity and pressure drop in the separation space are mainly compared.The result showed that the pressure drop and velocity in up-inlet-type are slightly higher than that of the down-inlet-type,and a secondary flow is easily produced in the annular space in up-inlet-type while a short circuit flow is found in down-inlet-type.Both the two inlet types cause cross flow,which may lead to particle deposition and pipe wear in the process of gas-solid separation.The influence of the pattern of inlet tube on the separation efficiency needs to be tested and further measured.

关 键 词：旋风分离器 催化裂化三旋 内部流场 进气型式 

分 类 号：TQ053.2[化学工程]