论文部分内容阅读
在分析二元氮－氟里昂混合工质的汽液固相平衡的基础上，揭示了二元氮－氟里昂混合工质“冰堵”的机理，并且分析了二组元高沸点氟里昂工质的共晶点，证明了多元混合工质可以有效地防止固相的析出。在此基础上，分析了三元混合工质的节流特性以及成分配比的影响，最后计算了四元氮－氟里昂混合工质的理论制冷量，并与纯氮和氮－烃类混合工质作了比较。结果表明，此类工质是一类可以替代氮－烃类多元混合工质的不可燃的安全工质。
Based on the analysis of the vapor-liquid solid phase equilibrium of the binary nitrogen-freon mixture, the mechanism of “ice plugging” of the binary nitrogen-freon mixture was revealed. And two component high boiling freons The quality of the eutectic point, proved that the multi-mixed refrigerant can effectively prevent the precipitation of solid phase. On this basis, the throttling characteristics of the ternary mixed refrigerant and the influence of the composition ratio were analyzed. Finally, the theoretical refrigeration capacity of the quaternary nitrogen-freon mixture was calculated and mixed with pure nitrogen and nitrogen-hydrocarbons Working fluid was compared. The results show that this type of working fluid is a non-combustible safe working fluid that can replace multiple nitrogen-hydrocarbon mixtures.