喷射器及其在制冷中的应用研究进展

Review of Ejector Research and Applications in Refrigeration

本文先介绍了喷射器的工作机理、性能评价指标以及理论建模等方面的研究进展。并在此基础上,分别介绍了喷射器喷嘴、接受室、恒面积段、扩压段几何尺寸对喷射器性能的影响。最后,对单级与多级喷射制冷、喷射-压缩复合制冷、喷射-吸收复合制冷、无泵喷射制冷等常见的几种喷射制冷系统进行了综述,并对喷射器的研究与应用提出了展望。

In this study,the working mechanism,performance evaluation indexes,and theoretical models of an ejector are summarized.The effects of the configuration and dimensions of an ejector and its nozzle,suction chamber,constant-area section,and diffuser on the performance are reviewed.Some typical examples of applications of ejector refrigeration systems are described,including single and multi-stage ejector refrigeration,combined compression-ejector refrigeration,combined ejector-absorption refrigeration,and ejector refrigeration systems without pump.Finally,prospective proposals of ejector research are suggested.