摘要
升气管作为旋风分离器的核心组成部分,其插入深度和直径对分离性能至关重要。为进一步明确升气管最大效率插入深度与直径的关系,采用数值模拟与试验相结合的方法,分析了不同直径下升气管插入深度对分离效率和流场的影响。结果表明:随着升气管插入深度的增大,旋风分离器分离效率先增大后减小,存在最大效率插入深度,且最大效率插入深度随升气管直径变化而变化。同时揭示了形成最大效率插入深度的流场机制。依据试验数据拟合了升气管最大效率插入深度的计算式,以期为旋风分离器升气管的设计提供帮助。
The vortex finder is the core component of the cyclone separator,its insertion depth and diameter are critical to the separation performance.To further clarify the relationship between the maximum efficiency insertion depth and diameter of the vortex finder,a combined method of numerical simulation and experiments is employed to analyze the effects of the insertion depth on the separation efficiency and flow field under different diameters of the vortex finder.The results indicate that as the insertion depth of the vortex finder increases,the separation efficiency of the cyclone separator first increases and then decreases,revealing the existence of a maximum efficiency insertion depth,which varies with the diameter of the vortex finder.The reason for the variation of the maximum efficiency insertion depth with diameter is analyzed,and the flow field formation mechanism of the maximum efficiency insertion depth is also revealed.Based on experimental data,a formula for calculating the maximum efficiency insertion depth of the vortex finder is derived,aiming to provide assistance for the design of vortex finders of the cyclone separators.
作者
袁世威
孙国刚
肖良策
钱振
曹港
Yuan Shiwei;Sun Guogang;Xiao Liangce;Qian Zhen;Cao Gang(College of Mechanical and Transportation Engineering,China University of Petroleum,Beijing 102249)
出处
《炼油技术与工程》
CAS
2024年第12期38-42,共5页
Petroleum Refinery Engineering
基金
国家自然科学基金面上项目(21978322)。
关键词
旋风分离器
升气管
插入深度
直径
分离效率
切向速度
轴向速度
cyclone separator
vortex finder
insertion depth
diameter
separation efficiency
tangential velocity
axial velocity
