第五节离心式制冷压缩机的特性曲线及调节一、离心式制冷压缩机的特性曲线离心式压缩机的特性曲线通常是由实验方法作出的,例如在保持进口压力P_o不变的情况下,改变出口压力P_k可以得到转速为n的压缩机的出口压力P_k、进口流量V_(o_o)和功率Ne之间的关系、如图16。但由于在制冷压缩机中关心的是冷凝温度t_k,蒸 Centrifugal refrigeration compressor characteristics curve and regulation Centrifugal refrigeration compressor characteristic curve Centrifugal compressor characteristic curve is usually made by experimental methods, such as maintaining the inlet pressure P_o unchanged, By changing the outlet pressure P_k, the relationship between the outlet pressure P_k of the compressor and the inlet flow rate V_ (o_o) and the power Ne can be obtained as shown in FIG. 16. However, due to the concern in the refrigeration compressor condensing temperature t_k, steam