丙烷与POE润滑油气液相平衡的实验研究  

Experimental Study on Vapor-Liquid Equilibrium of Propane and POE Lubricant Oil

作　　者：贾秀璨 王建[2] 孙艳军[2] 王晓坡[1] 胡余生 史正良 郭小青 JIA Xiucan;WANG Jian;SUN Yanjun;WANG Xiaopo;HU Yusheng;SHI Zhengliang;GUO Xiaoqing(Key Laboratory of Thermo-Fluid Science and Engineering,Ministry of Education,Xi’an Jiaotong University,Xi’an 710049,China;Institute of Building Energy&Sustainability Technology,Xi’an Jiaotong University,Xi’an 710049,China;State Key Laboratory of Air-Conditioning Equipment and System Energy Conservation,Zhuhai,Guangdong 519070,China;Gree Electric Appliances Inc.of Zhuhai,Zhuhai,Guangdong 519070,China)

机构地区：[1]西安交通大学热流科学与工程教育部重点实验室,西安710049 [2]西安交通大学建筑环境与可持续技术研究所,西安710049 [3]空调设备及系统运行节能国家重点实验室,广东珠海519070 [4]珠海格力电器股份有限公司,广东珠海519070

出　　处：《西安交通大学学报》2020年第2期78-85,136,共9页Journal of Xi'an Jiaotong University

基　　金：空调设备及系统运行节能国家重点实验室开放基金资助项目(ACSKL2018KT14);国家自然科学基金资助项目(51606148)

摘　　要：为了研究环保制冷剂丙烷(R290)与多元醇酯类(POE)润滑油的相平衡性质,通过气相色谱质谱方法对多元醇酯类润滑油POE22的组分和各组分所占的摩尔分数进行了分析,在此基础上使用等体积饱和法在278.15~348.15 K的温度范围内对R290在POE润滑油中的溶解度进行了测定,并采用活度系数NRTL模型对实验结果进行了关联。结果表明:POE22润滑油中主要含有4种酯类化合物和3种添加剂,这7种成分在润滑油中占比99.49%。由模型计算得到的R290与POE22二元混合物理论平衡压力值和实验平衡压力值的平均绝对偏差为0.565%,最大相对偏差为2.934%。此外,在温度范围278.15~348.15 K内未发现制冷剂R290与润滑油存在化学反应或不互溶的现象。将实验结果与文献中报道的R290在两种矿物油(ISO VG12和NM100P)中的溶解度进行了对比,发现POE油更适合R290。The gas chromatography mass spectrometry method is used to analyze the components and the share of each component in POE22 and to study the phase equilibrium properties of the environmental refrigerant propane(R290)and polyol ester(POE)lubricant.Then the isochoric saturation method is used to measure the solubilities of R290 in POE22 at 278.15-348.15 K,and the NRTL model is used to correlate the experiment results.The results show that POE22 is mainly composed of four ester compounds and three additives,and the seven components accounts for 99.49%in POE22.The absolute average deviation and the maximum relative deviation between the calculated theoretical pressure value and the experimental pressure value are 0.565%and 2.934%,respectively.Moreover,no chemical reaction or immiscibility phenomenon between R290 and oil are found in the temperature range from 278.15 to 348.15 K.Experimental results are compared with the reported solubility of R290 in two mineral oils(ISO VG12 and NM100P),and it is found that POE oil is more suitable for R290.

关 键 词：相平衡 实验 二元混合物 丙烷 POE润滑油 

分 类 号：TK121[动力工程及工程热物理—工程热物理]