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| Research on the influence of Gas-entraining Diffuser structure on the performance of the compressor |
| DOI：10.13949/j.cnki.nrjgc.XXXX.XX.001 |
| Key Words:DEGR gas-entraining diffuser compressor vortex inlet structure compressor performance |
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| 摘要点击次数: 147 |
| 全文下载次数: 0 |
| Abstract:In this paper, based on the introduction of EGR (gas-entering diffuser EGR) scheme into the diffuser, the influence of the performance of the gas-entraining diffuser compressor is studied by 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 is 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. |
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