作　　者： ; ; ;

机构地区： 北京工业大学

出　　处： 《石油化工设备》 2009年第4期1-4,共4页

摘　　要： 制冷压缩机补气而构成的准二级压缩热泵(制冷)循环,可以改善压缩机的压缩过程及整个循环的性能。对活塞式、螺杆式、涡旋式、滚动活塞式及离心式等5种常用型式制冷压缩机的补气特征及循环性能进行了分析,归纳出了其补气过程和系统循环的特性及各自的适用范围。 Quasi two-stage compression heat pump or refrigeration cycle composed by refrigerant compressor with secondary suction holes can obviously improve its compression process and the cycle performance. The secondary suction characteristics of quasi two-stage compression cycle composed by piston compressor, screw compressor, scroll compressor, rotary compressor and cen- trifugal compressor,respectively,and their cyclic performance were analyzed. The cyclic perform- ance with different compressor and applicable situations were discussed.

关 键 词： 压缩机 准二级压缩 经济器 特性分析

领　　域： [化学工程]