第一节蒸气压缩式制冷机的基本构成部件蒸气压缩式制冷机是由压缩机、蒸发器、冷凝器和节流阀四个主要部件构成的。这些部件通过管路联接成一个封闭的回路,制冷工质—制冷剂在其中循环流动,不断产生状态的变化,从而达到制冷的目的。压缩机是从外界输入能量以完成将制冷剂从低压压缩至高压的机器,按其结构型式和工作原理来划分有活塞式、离心式、螺杆式、旋转式等类型。图1是单级蒸气压缩式制冷循环 The first part of the basic components of the vapor compression chillers vapor compression chiller is composed of the compressor, evaporator, condenser and throttle four main components. These components are connected by a pipeline into a closed loop, the refrigerant - refrigerant circulating in which there are constantly changing state, so as to achieve the purpose of refrigeration. Compressor is the input of energy from the outside world to complete the refrigerant from low pressure to high pressure machine, according to the structure and working principle to divide piston, centrifugal, screw, rotary and other types. Figure 1 is a single stage vapor compression refrigeration cycle