润滑油溶解对混合工质组分浓度改变的实验研究  

THE COMPOSITION CHANGE OF REFRIGERANT MIXTURES DUE TO THE DIFFERENT SOLUBILITY OF REFRIGERANT IN LUBRICANT

作　　者：洪辉[1] 公茂琼[1] 张宇[1] 周伟[1] 吴剑峰[1] 

机构地区：[1]中国科学院理化技术研究所

出　　处：《工程热物理学报》2006年第z1期76-78,共3页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.50206024)

摘　　要：建立了气液溶解平衡实验装置,研究润滑油溶解对低温混合工质浓度的改变。采用商用矿物润滑油3GS对2组混合工质进行了实验研究,实验温度范围为36～100℃,压力范围为157.1～832.6kPa.实验结果表明:由于润滑油的溶解,混合工质浓度改变明显,第一组混合工质中组分最大相对浓度改变率为-40.32%,第二组混合工质中组分最大相对浓度改变率为24.54%.和初始浓度相比,浓度变化趋势为高沸点烷烃浓度减少,低沸点烷烃(或氮气)浓度升高.The composition change of two refrigerant mixtures due to the different solubility of refrigerant in lubricant 3GS were measured at temperature between 36 and 100℃and pressure between 157.1 and 832.6 kPa.The maximal relative composition changes of the two mixed refrigerants were -40.32% and-24% respectively.After the refrigerant mixtures dissolved completely,the composition of high boiling point alkenes decreased,and the composition of low boiling point alkenes or nitrogen increased.

关 键 词：气液平衡 混合工质 变浓度 润滑油 

分 类 号：TK123[动力工程及工程热物理—工程热物理]