• 机械与动力工程 •

### 无油双涡圈空气涡旋压缩机的数值模拟及试验研究

1. 兰州理工大学 机电工程学院, 兰州 730050
• 收稿日期:2021-04-06 出版日期:2022-05-28 发布日期:2022-06-07
• 通讯作者: 彭斌 E-mail:pengb2000@163.com
• 作者简介:孙健(1991-),男,甘肃省张掖市人,博士生,主要研究方向为涡旋机械及低温余热发电.
• 基金资助:
国家自然基金项目(51675254);国家自然基金项目(51966009);国家重点研发计划-“科技助力经济2020”重点专项(SQ2020YFF0420989);兰州市人才创新创业项(2020-RC-23);甘肃省科技计划项(20YF8GA05)

### Numerical Simulation and Experimental Study of Oil-Free Double-Warp Air Scroll Compressor

SUN Jian, PENG Bin(), ZHU Bingguo

1. School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
• Received:2021-04-06 Online:2022-05-28 Published:2022-06-07
• Contact: PENG Bin E-mail:pengb2000@163.com

Abstract:

In order to analyze the flow characteristics of the internal flow field in the working chamber of the oil-free double-warp scroll compressor, a three-dimensional unsteady numerical simulation of the internal flow field in the working chamber of the compressor is conducted based on the computational fluid dynamics (CFD) method. In order to verify the deviation between the numerical simulation and the actual working process, a test platform for scroll compressors using air as the working medium is built, and the actual output performance parameters of the oil-free double-warp scroll compressor are obtained. The results show that the mass exchange between adjacent working chambers has a greater impact on the working chamber and the distribution of temperature and velocity along the tooth height direction, but has a little impact on pressure. The inlet and outlet mass flow and velocity rate change periodically, and as the compressor speed increases, the theoretical volume flow increases.