转子结构参数对双螺杆压缩机性能影响规律的研究  

Research on Influence Law of Rotor Structural Parameters on Performance of Twin Screw Compressor

作　　者：饶静 RAO Jing(School of Foreign Languages,Xinyang University,Xingyang 464000,China)

机构地区：[1]信阳学院外国语学院,河南信阳464000

出　　处：《压缩机技术》2024年第2期33-36,共4页Compressor Technology

摘　　要：为最大限度地提高双螺杆压缩机的性能,以5、6齿双螺杆压缩机为研究对象,对转子的长径比、齿间及齿顶间隙、扭转角角度等转子结构参数进行系统的分析,研究结果表明:在啮合间隙处于0.02~0.1 mm之间,啮合间隙每增大0.02 mm时,容积效率下降3%~4%,绝热效率下降1.5%~2.4%,比功率下降33%~48%,齿顶间隙对双螺杆压缩机性能的影响大于啮合间隙;随着长径比(L/D)增大,容积效率提高2%~7%,比功率提高40%~70%,绝热效率提高1.5%~5%;扭转角值增大,容积效率、比功率、绝热效率均呈降低趋。研究还进一步探究了转子结构设计参数对质量流量、体积流量、Blow-hole area(泄漏三角形)影响变化规律。研究结果可为双螺杆压缩机的设计研究和优化升级提供一定的理论参考。In order to maximize the performance of twin-screw compressor,the 5-6 teeth rotor profile was taken as the research object,and the influence of the rotor structure parameters such as the length-diameter ratio,the inter-tooth clearance,the torsion angle of the rotor on the performance of the twin-screw compressor was analyzed.The research results show that when the meshing gap is between 0.02 mm~0.1 mm,when the meshing gap increases by 0.02 mm,the volumetric efficiency decreases by 3%~4%,the adiabatic efficiency decreases by 1.5%~2.4%,and the specific power decreases by 33%~48%,the effect of the tooth tip clearance on the performance of twin-screw compressor is greater than that of the meshing clearance.As the length-diameter ratio(L/D)increases,the volumetric efficiency increases by 2%~7%,and the specific power increases by 40%~70%,the adiabatic efficiency is increased by 1.5%~5%,with the increase of the torsion angle value,the volumetric efficiency,specific power and adiabatic efficiency all tend to decrease.In this study,the influence of rotor structure design parameters on mass flow,volume flow,and Blow-hole area(leak triangle)was further explored.The results of this study can provide a theoretical reference for the design,research and optimization of twin-screw compressors.

关 键 词：双螺杆压缩机 转子结构参数 长径比 齿间及齿顶间隙 扭转角角度 

分 类 号：TB653[一般工业技术—制冷工程]