R290高背压旋转压缩机极端环境下储液器热分析  

Thermal analysis of accumulator in extreme environments of R290 high back pressure rotary compressor

作　　者：孙凝 史红艳 林杰 Sun Ning;Shi Hongyan;Lin Jie(Faculty of Environmental and Municipal Engineering,North China University of Water Resources and Electric Power;Faculty of Mechanical Engineering,Quzhou University)

机构地区：[1]华北水利水电大学环境与市政工程学院 [2]衢州学院机械工程学院

出　　处：《制冷与空调》2024年第1期62-68,共7页Refrigeration and Air-Conditioning

基　　金：国家自然科学基金项目(52106019)。

摘　　要：以制冷剂R290为研究工质,主要分析了极端环境下旋转压缩机气液分离器(储液器)中产生的无效过热情况及其对性能的影响程度。首先利用计算流体动力学(CFD)技术建立了储液器详细的流固耦合仿真模型用于研究极端环境储液器的吸气加热情况;其次分析了极端环境下储液器内的吸气加热对压缩机性能的影响。结果表明,极端制热条件下储液器的吸气加热温升比极端制冷大;减小储液器内的吸气温升对压缩机性能提升明显。研究工作将为极端环境下储液器传热优化及其压缩机性能提升提供一定参考。As we all know,ineffective suction heating has always been an important factor to affect compressor performance.In this paper,the new alternative refrigerant R290 is used as the research working medium,and the ineffective overheating generated in the gas-liquid separator(accumulator)of the rotary compressor under extreme environments and the degree of impact on performance are analyzed.Firstly,a detailed fluid structure interaction simulation model of the accumulator was established by CFD technology to study the suction heating of the accumulator in extreme environment.Secondly,the effect of suction heating in the accumulator under extreme environment on compressor performance was analyzed.The results show that the suction heating of the accumulator is greatly affected by the exhaust temperature and frequency,while it is less affected by the ambient temperature outside the housing.Under extreme heating conditions,the suction heating temperature rise of the accumulator is larger than that of extreme refrigeration conditions;Reducing the temperature rise of the accumulator significantly improves the performance of the compressor.The research work in this paper will provide a reference for the heat transfer optimization of the reservoir and the improvement of compressor performance under extreme conditions.

关 键 词：R290旋转压缩机 流固耦合模型 储液器 极端环境 

分 类 号：TB6[一般工业技术—制冷工程]