论文部分内容阅读
在化学工业部门,广泛采用小排气量离心式压缩机压缩各种气体。在这种压缩机长期运转过程中,发生了通流部份零件的腐蚀性磨损,由于压缩机的几何尺寸较小,从而使工作表面的相对不光洁度增高。敖德萨制冷机械制造工学院研究了工作叶轮和蜗壳通道的光洁度对排气量0.06米3/秒的小流量离心式压缩机级的能量损失的影响。图1所示为压缩机通流部份示意图。压缩机由具有强后弯曲的叶片的工作叶轮和无扩压蜗壳组成。叶轮的主要几何尺寸为:Dl=0.06米;D2=0.135米;d=0.04米;bl=0.1米;b2=
In the chemical industry, a wide range of small displacement centrifugal compressors compress a wide range of gases. During the long-term operation of this type of compressor, corrosive wear on parts of the flow-through occurred. As the compressor geometry is smaller, the relative surface roughness of the working surface is increased. Odessa Refrigeration Engineering Institute of Technology studied the effect of the working impeller and volute channel finish on the energy loss of the low-flow centrifugal compressor stage with a displacement of 0.06 m 3 / s. Figure 1 shows the compressor flow through the part of the schematic. The compressor consists of a working impeller with a strong back-curved blade and a non-expanding volute. The main geometrical dimensions of the impeller are: Dl = 0.06 m; D2 = 0.135 m; d = 0.04 m; bl = 0.1 m; b2 =