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制冷剂制冷剂即制冷工质,是制冷系统中进行循环且不断产生相态变化而传递热量的物质。制冷剂的基本特性是:常压下气化温度低,临界温度高,在常温或普通低温下容易液化。在蒸气压缩式制冷机中,利用冷凝后的高压液态制冷剂,经节流降压,在蒸发器中气化吸热,使被冷却物体冷却。气化后的制冷剂又由压缩机吸入,被压缩提高压力后送入冷凝器。高温高压的气态制冷剂在冷凝器中把热量传递给冷却介质——水或空气,再被液化。制
Refrigerant refrigerant refrigerant that is circulating in the refrigeration system and continue to produce changes in the phase change and heat transfer material. The basic characteristics of the refrigerant is: atmospheric pressure gasification temperature is low, the critical temperature is high, easy to liquefaction at room temperature or ordinary low temperature. In the vapor compression refrigerator, the use of high-pressure liquid refrigerant after condensation, the throttle step-down, vaporization in the evaporator absorbs heat, the object is cooled. The gasified refrigerant is sucked in by the compressor and compressed to increase the pressure and then sent to the condenser. High temperature and pressure gas refrigerant in the condenser heat transfer to the cooling medium - water or air, and then liquefied. system