蒸汽引射器CFD辅助结构研究  

CFD-Assisted Structure Study of Steam Ejector

作　　者：周三平[1] 卢雨含 ZHOU Sanping;LU Yuhan(College of Mechanical Engineering,Xi’an Shiyou University,Xi’an 710065,China)

机构地区：[1]西安石油大学机械工程学院,陕西西安710065

出　　处：《化工技术与开发》2022年第1期78-81,共4页Technology & Development of Chemical Industry

摘　　要：运用计算流体力学数值模拟方法,对蒸汽引射器的喷嘴距、混合室长度和喉管长度这3个轴向尺寸对喷射系数的影响规律进行了数值模拟。结果表明,随3个轴向尺寸的增大,喷射系数先逐渐增大再逐渐下降,其最佳值与索科洛夫经验公式算出的结果有较大的差异,表明索科洛夫经验公式算出的轴向尺寸有较大的优化空间。Using the computational fluid dynamics numerical simulation method,the effects of the three axial dimensions of the nozzle distance,mixing chamber length and throat length of the steam ejector on the injection coefficient were numerically simulated.The results showed that with the increase of the three axial dimensions,the injection coefficient first increased and then decreased,and its optimal value was quite different from that calculated by Sokolov empirical formula.The axial dimension calculated by Sokolov empirical formula had a large optimization space.

关 键 词：蒸汽引射器 轴向尺寸 喷射系数 CFD 

分 类 号：TQ051.21[化学工程]