摘要
提出一种新型轴向旋流分离器,应用于初级除尘或是生产物料的就地分离、回收。结合Fluent模拟方法讨论各结构参数对分离性能的影响;并制作实验件,考察其实际分离性能。结果表明:叶片厚度δ的增大、下部集尘室长度g的增大、或是排气管B的减小,均会使阻力损失和分离效率增大;且排气管深入集尘室h可提高小粒径颗粒物的分离效率;确定δ=3 mm,g=400 mm,B=160 mm,h=100 mm,此时,若保持分离效率值相近,新型分离器的阻力损失仅为旋风分离器的24.63%;阻力特性实验的平均相对误差值仅为3.94%,验证了模拟结果的准确性;实验中新型分离器对6μm滑石粉的分离效率至少为52%,并随气流速度增大而增大;为新型分离器的研究奠定了基础。
A new type of axial cyclone separator was proposed,which is used to firstly remove dust or separate and recycle materials in place.The effects of various structural on the separation performance were discussed with simulation method,and made a test piece to investigate its actual separation performance.The results show that the increase of the blade thickness δ,the dust chamber length at the bottom g or the decrease of the exhaust pipe B would increase the resistance loss and separation efficiency.Furthermore,the deep exhaust pipe into the dust collecting chamber h can significantly improve the separation efficiency of small particle size;determined δ=3 mm,g=400 mm,B=160 mm,h=100 mm,at this time,if the separation efficiency was kept close,the resistance loss of new separator was only 24.63% of cyclone separator.The average relative error value of the resistance characteristic experiment was only 3.94%,which verified the accuracy of the simulation results;the actual separation efficiency of 6μm could reach 52%,which increased with the increase of air flow velocity;it laid a foundation for the research of new separator.
作者
邱良燕
戴石良
李贝贝
王昂
QIU Liang-yan;DAI Shi-liang;LI Bei-bei;WANG Ang(School of Civil Engineering,University of South China,Hengyang 421001,Hunan Province,China;National Demonstration International Scientific and Technological Cooperation Base for Nuclear Energy and Nuclear Safety,Hengyang 421001,Hunan Province,China;Hunan Nuclear Sunny Technology Engineering Company Limited,Hengyang 421001,Hunan Province,China)
出处
《化学工程》
CAS
CSCD
北大核心
2020年第10期63-67,78,共6页
Chemical Engineering(China)
关键词
新型旋流分离器
结构设计
阻力损失
分离效率
new cyclone separator
structure design
resistance loss
separation efficiency
