考虑壅塞特性的电子膨胀阀流量特性模型

上海交通大学学报（自然版）

考虑壅塞特性的电子膨胀阀流量特性模型

陈亮，陈江平，刘敬辉，陈芝久

(上海交通大学制冷与低温工程研究所，上海 200240)

收稿日期:2009-01-07 修回日期:1900-01-01 出版日期:2010-01-29 发布日期:2010-01-29

A Flow Characteristics Model of Electronic Expansion Valve Considering Choking Characteristics

CHEN Liang,CHEN Jiangping,LIU Jinghui,CHEN Zhijiu

(Institute of Refrigeration and Cryogenics, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2009-01-07 Revised:1900-01-01 Online:2010-01-29 Published:2010-01-29

摘要/Abstract

摘要： 分析了电子膨胀阀内部制冷剂的壅塞流动特性，应用均相流和冷冻流模型描述电子膨胀阀的流量特性，用亚稳态特性系数建立膨胀阀质量流量计算模型，并采用某型号电子膨胀阀的实验数据与所建模型的计算值进行对比.结果表明，该模型的计算值与实测值的偏差在-8.59%~7.56%以内.

关键词: 电子膨胀阀, 流量特性, 壅塞, 亚稳态特性

Abstract: The choked refrigerant flow characteristics of electronic expansion valve (EEV) was analyzed. A metastability coefficient was proposed by employing the homogeneous equilibrium flow model and frozen flow model to depict the flow characteristics of EEVs, and the coefficient was applied to build a mass flow model of EEV. The modeling results were compared with the experimental data and the deviation of the predicted metastability coefficient by the model is in the range of -8.59% to 7.56%.

中图分类号:

TB 663

陈亮，陈江平，刘敬辉，陈芝久. 考虑壅塞特性的电子膨胀阀流量特性模型[J]. 上海交通大学学报（自然版）.

CHEN Liang,CHEN Jiangping,LIU Jinghui,CHEN Zhijiu. A Flow Characteristics Model of Electronic Expansion Valve Considering Choking Characteristics [J]. Journal of Shanghai Jiaotong University.