摘要
为了提高旋转式两级压缩机的能效,首先采用结构型网格划分压缩腔,在CFX中调用FORTRAN控制压缩腔的节点径向运动,模拟一级和两级压缩过程,随后实验验证仿真模型准确,为能效提升提供理论支撑,最后提出三种一级气缸和二级气缸之间的中间腔结构,即中间腔结构分别布置在压缩机内部、压缩机外部和两者混合。结果分析表明:混合方式决定一级排气压力、二级吸气压力和压力脉动,内部混合结构的一级排气压力低、功耗低和能效最佳,但是压力脉动大,为后续能效提升提供支撑。
In order to improve the energy efficiency of the rotary two-stage compressor,the two-stage compression chamber uses structural mesh to divide the compression chamber,calls FORTRAN in CFX to control the radial movement of the nodes of the compression chamber,and simulates the primary and two-stage compression processes.Subsequently,experiments verify that the simulation model is accurate,providing theoretical support for energy efficiency improvement.Based on the validated model,three types of intermediate chambers are proposed,and hybrid configurations,the intermediate chamber is arranged inside the compressor,outside the compressor,and the hybrid structure of the two.The result analysis shows that the structure of the intermediate chamber determines the first stage exhaust pressure,second stage suction pressure,and pressure pulsation.The intermediate chamber is arranged inside the compressor,with low first stage exhaust pressure and large pressure pulsation,low power consumption,and optimal energy efficiency,providing support for subsequent energy efficiency improvement.
作者
王志磊
童为政
黄健
廖健生
WANG Zhilei;TONG Weizheng;HUANG Jian;LIAO Jiansheng(Guangdong Meizhi Compressor Co.,Ltd.,Foshan 528333)
出处
《家电科技》
2025年第5期100-103,108,共5页
Journal of Appliance Science & Technology
关键词
两级压缩机
中间腔
能效
压力脉动
Two stage compressor
Intermediate cavity
Energy efficiency
Pressure fluctuation
