单螺杆蒸汽压缩机喷水趋壁成膜特性研究  

Study on the Wall-Approaching Film Formation Characteristics of Water Injection in a Single-Screw Steam Compressor

作　　者：代泽宇 王增丽[1] DAI Zeyu;WANG Zengli(China University of Petroleum College of New Energy,(East China),Qingdao 266580,China)

机构地区：[1]中国石油大学(华东)新能源学院,青岛266580

出　　处：《工程热物理学报》2025年第1期144-150,共7页Journal of Engineering Thermophysics

基　　金：国家自然科学基金面上项目(No.52376020);山东省自然科学基金面上项目(No.ZR2022ME114)。

摘　　要：为实现单螺杆蒸汽压缩机喷水参数的合理调控,本文通过建立三维单螺旋槽道模型,开展了湿压缩过程喷入冷却水趋壁成膜过程的数值模拟研究,分析了槽道内形成有效水膜的覆盖面积以及喷水质量流量、速度、角度和螺杆转速等关键参数对其影响规律。研究结果表明,喷水质量流量对形成有效水膜覆盖面积影响最大,最大增幅为6.77×10^(−4) m^(2);喷水速度、角度及螺杆转速引起的有效水膜覆盖面积增幅依次为喷水质量流量引起增幅的59.85%、50.68%和47.79%。To realize reasonable control of the water injection parameters for a single-screw steam compressor,a three-dimensional single screw groove model was established,the numerical simulation of the wall-approaching film formation process of injected water along the wet compression process was carried out,the coverage area of the effective water film formed by the injected cooling water inside the compression channel,as well as the influence laws of the key parameters such as water injection mass flow rate,velocity,angle,and screw rotor rotational speed were analyzed.The results indicate that the injection mass flow rate has the greatest impact on the coverage area of the effective water film with a maximum increase of 6.77×10^(−4) m^(2).Within the selected parameter range in the study,the respective increases in the coverage area of the effective water film caused by these factors are 59.85%、50.68%and 47.79%compared to the increase caused by the injection mass flow rate.

关 键 词：单螺杆压缩机 湿压缩过程 数值模拟 趋壁成膜特性 影响规律 

分 类 号：TH45[机械工程—机械制造及自动化]