水润滑单螺杆空气压缩机性能影响因素的试验研究  

Experimental Study on the Influencing Factors of Performance of Water Lubricated Single-screw Air Compressor

作　　者：李亚南[1,2] 王景甫 吴玉庭[1,2] 智瑞平[1,2] 雷标[1,2] LI Yanan;WANG Jingfu;WU Yuting;ZHI Ruiping;LEI Biao(Faculty of Environment and Life,Beijing University of Technology,Beijing 100124,China;MOE Key Laboratory of Enhanced Heat Transfer and Energy Conservation,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学环境与生命学部,北京100124 [2]北京工业大学传热强化与过程节能教育部重点实验室,北京100124

出　　处：《北京工业大学学报》2023年第5期558-565,596,共9页Journal of Beijing University of Technology

基　　金：北京市自然科学基金资助项目(3181001)。

摘　　要：为了深入研究水润滑单螺杆空气压缩机性能的影响因素,设计制造了一台水润滑单螺杆空气压缩机,并搭建了测试试验台,通过试验研究了不同转速、排气压力和喷水流量对水润滑单螺杆压缩机性能的影响.结果表明,增加转速可以减小泄漏量,提高压缩机的性能.其余工况不变,只增大喷水流量时,可以提高压缩机的水气比,增强水气之间的换热和压缩机的密封效果,进而提高水润滑单螺杆空气压缩机的各项性能.如转速为3000 r/min、排气压力为0.50 MPa时,喷水流量由50 L/min提高至80 L/min,压缩机的容积效率提高5.15%,绝热效率提高2%,比功率降低0.26 kW/(m3·min^(-1)).由于水的黏度远小于润滑油,因此为了保证压缩机的性能,水气比要高于同工况下的油气比.在额定转速3000 r/min下,排气压力为0.50~0.65 MPa时,建议的水气比范围为2.94%~3.48%.To further study the influencing factors of the performance of water lubricated single-screw air compressor,a water lubricated single-screw air compressor was designed and manufactured,and an experimental system was set up to investigate the effects of rotation speed,discharge pressure and water injection flow rate on the performance of the water lubricated single-screw air compressor.Results show that increasing the rotation speed can reduce the leakage and improve the performance of the compressor.When other working conditions remain unchanged and the water injection flow rate is increased,the water-gas ratio of the compressor can be improved,and the heat exchange between water and gas and the sealing effect of the compressor can be enhanced,so as to improve the performance of the water-lubricated single screw air compressor.When the rotation speed is 3000 r/min and the discharge pressure is 0.50 MPa,the increase in the water injection flow rate from 50 L/min to 80 L/min reduces the specific power of the compressor,improves the volume efficiency,and improves the adiabatic efficiency by 0.26 kW/(m3·min^(-1)),5.15%,and 2%,respectively.Since the viscosity of water is much less than that of lubricated oil,the water-gas ratio is higher than that of oil-gas in the same working condition in order to ensure the performance of the compressor.Based on the research in this paper,when the discharge pressure is in the range of 0.50 MPa-0.65 MPa at the rated rotation speed of 3000 r/min,the recommended water-gas ratio range is 2.94%-3.48%.

关 键 词：水润滑 单螺杆空气压缩机 热力性能 喷水流量 水气比 性能提升 

分 类 号：TH455[机械工程—机械制造及自动化]