内燃机工程2024，Vol.45Issue(6)：81-87,7.DOI:10.13949/j.cnki.nrjgc.2024.06.009
引气结构对引气压气机性能影响的研究
Research on the Influences of Gas-Entraining Diffuser Structures on the Performance of a Compressor
摘要
Abstract
Based on the introduction of gas-entraining diffuser exhaust gas recirculation(DEGR)scheme into the diffuser,the influence of the performance of the gas-entraining diffuser compressor was studied by computational fluid dynamics(CFD)numerical simulation.The influence of gas-entraining diffuser structure on the performance of the compressor without entering was studied,and the performance of the pulverized air compressor with and without vortex intake was analyzed.The results show that compared with the original compressor,the peak efficiency of the gas-entraining diffuser compressor was reduced by nearly 2%without entering.The simulation results with and without vortex structure show that the vortex inlet can effectively reduce the tangential velocity difference between the outlet of the bleed structure and the outlet of the impeller,reduce the flow loss and mixing loss caused by the bleed air entering the diffuser,and improve the adiabatic efficiency of the gas-entraining diffuser compressor.关键词
扩压器引入废气再循环/引气压气机/涡旋进气结构/压气机性能Key words
diffuser exhaust gas recirculation(DEGR)/gas-entraining diffuser compressor/vortex inlet structure/compressor performance分类
矿业与冶金引用本文复制引用
王智慧,祝飞,马朝臣..引气结构对引气压气机性能影响的研究[J].内燃机工程,2024,45(6):81-87,7.基金项目
山西省科技厅青年科学研究项目(20210302123357)Shanxi Youth Scientific Research Program(20210302123357) （20210302123357）
