采用双圆弧加直线单元组合型线的涡旋压缩机理论及试验研究.pdfVIP

第 46 卷第 10 期 机 械 工 程 学 报 Vol.46 No.10 2 0 1 0 年 5 月 JOURNAL OF MECHANICAL ENGINEERING May 2 0 1 0 DOI ：10.3901/JME.2010.10.144 采用双圆弧加直线单元组合型线的 涡旋压缩机理论及试验研究 王国梁 (北京科技大学机械工程学院 北京 100083) 摘要：在对国内外现有涡旋压缩机型线种类进行研究的基础上，提出一种新的涡圈型线的组合形式——单元组合形式，进而 提出一种能够满足该形式的双圆弧加直线单元组合型线，该型线由若干相似单元组成，每一单元由大圆弧、小圆弧和直线构 成。建立该型线的基本几何理论，推导工作腔容积，研究工作腔容积变化规律。研制开发具有该型线的车用空调涡旋压缩机， 并进行变转速性能试验。试验结果显示：在相同的涡盘外形尺寸的情况下，与传统的圆渐开线型线相比，采用该单元组合型 线的涡旋压缩机具有更大的制冷量和性能系数(Coefficient of performance, COP) 。 关键词：单元组合型线 涡旋压缩机 性能 中图分类号：TH45 Theoretical and Experimental Research on the Scroll Compressor with Arc-arc-line Unit Combined Profile WANG Guoliang (School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083) Abstract ：A novel combined scroll compressor profile is proposed. It consists of some similar profile units and each unit includes a large arc, a small arc and a straight line. So the profile is named as arc-arc-line unit combined profile. The basic geometrical theory of the profile is established. The working chamber volume is derived and its change rule is studied. A prototype of scroll compressor with the arc-arc-line unit combined profile for automotive air conditioner is developed and its performance at variable speed is tested. The results show that the scroll compressor with arc-arc-line unit combined profile, in comparison with the one with the normal circle involute profile, has greater refrigeration quantity and higher coefficient of performance (COP) when they have the same overall dimensions of scroll plate. Key words ：Unit combined profile Scroll compressor Performance 首先建