旋转气泵的性能特性分析  

Study on Performance Characteristics of Rotary Booster

作　　者：薛佳 马国远[1] 戴晗 周峰[1] 李富平[1] 晏祥慧[1] 姜明健[1] Xue Jia;Ma Guoyuan;Dai Han;Zhou Feng;Li Fuping;Yan Xianghui;Jiang Mingjian(College of Energy and Power Engineering,Beijing University of Technology,Beijing,100124)

机构地区：[1]北京工业大学能源与动力工程学院,北京100124

出　　处：《制冷与空调（四川）》2021年第3期435-439,443,共6页Refrigeration and Air Conditioning

基　　金：北京市教委科技计划一般项目(KM201910005017);中国科学院低温工程学重点实验室开放课题(CRY0201913);国家自然科学基金(51776004)。

摘　　要：泵驱动回路热管机组是提高数据中心自然冷源利用率的重要技术手段,以应用于回路热管中的旋转气泵为研究对象,详细分析该气泵的热力学和动力学性能,并与其对应的压缩机性能进行比较。结果表明:气泵压力比可降低33%以上,排气温度可降低22℃以上,制冷量可提高30%,EER可提高70%以上;以R22为循环工质时,气泵气体力、阻力矩的峰值为对应压缩机的60%左右,气体力、阻力矩的波动幅度为对应压缩机的50%左右;旋转气泵以R410A、R32为工质时的制冷量约是R22时的1.5倍,EER略低于R22,R410A、R32为工质时的气泵阻力矩曲线大致相同,而R22为工质时的阻力矩峰值、波动幅度仅为R410A、R32的60%。Booster-driven loop heat pipe unit is an important technical means to utilize ambient cooling reservoir in data center.In this paper,the thermodynamic and dynamic performance of the rotary booster applied in the loop heat pipe were analyzed in detail,The results showed that,for the rotary booster,the norminal pressure ratio could be reduced by more than 33%,the discharge temperature could be reduced by more than 22℃,the cooling capacity could be increased by 30%,and the EER could be increased by more than 70%,comparing with the ones of its corresponding rotary compressor.When the rotary booster using R22 as working fluid,the peak values of the gas force and torque are about 60%of the ones for the corresponding compressor,and the fluctuation amplitude of the gas force and torque is about 50%.The cooling capacity of the rotary booster with R410A or R32 as working fluid is about 1.5 times of that with R22,but the EER is slightly lower than that with R22.When using R410A and R32 are working fluid,respectively,the torque curves for the booster almost keep same.When using R22 as working fluid,the peak value and the fluctuation amplitude of the torque curve are only 60%of that with R410A or R32.

关 键 词：旋转气泵 性能 数据中心节能 自然冷却 

分 类 号：TB69[一般工业技术—制冷工程]