排气管气腔对离心压缩机喘振的影响  

Influence of Exhaust Plenum Chamber on Surge of Centrifugal Compressor

作　　者：高晓欢 席光[1] 赵阳 赵家毅 樊宏周[1] 邹瀚森 赵天昊 GAO Xiaohuan;XI Guang;ZHAO Yang;ZHAO Jiayi;FAN Hongzhou;ZOU Hansen;ZHAO Tianhao(School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China;China Aerodynamics Research and Development Center,Mianyang 621000,China;Chengdu Aircraft Industrial(Group)Co.,Ltd,Chengdu 610073,China)

机构地区：[1]西安交通大学能源与动力工程学院,西安710049 [2]中国空气动力研究与发展中心,绵阳621000 [3]成都飞机工业(集团)有限公司,成都610073

出　　处：《工程热物理学报》2025年第3期800-806,共7页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.52130603)。

摘　　要：为了深入研究排气管气腔对压缩机喘振过程中,进出口管道内气动参数的变化规律,本文利用高频率的热线探针及压力传感器,获取了有无排气管气腔的离心压缩机系统在喘振过程中的试验数据。通过分析得出,在相同阀门开度情况下:有排气管气腔的压缩机系统喘振频率约为1.168 Hz,进出口管道均能监测到大负流量区(回流),这表明压缩机已进入深度喘振工况;无排气管气腔的压缩机系统喘振频率约为3.968 Hz,仅在进口监测到大负流量区(回流),这显示压缩机仍处于轻度喘振工况。To further study the variation law of aerodynamic parameters in inlet and outlet pipes during the compressor surge process,this paper uses high-frequency hot-wire probes and pressure sensors to obtain the test data of the centrifugal compressor system with or without exhaust pipe plenum chamber during the surge process.According to the analysis,under the condition of the same valve opening,the surge frequency of the compressor system with the exhaust pipe plenum chamber is about 1.168 Hz,and the large negative flow area(backflow)can be detected in both the inlet and outlet pipes,which indicates that the compressor has entered the deep surge condition.The surge frequency of the compressor system without the exhaust gas chamber is about 3.968 Hz,and the large negative flow area(backflow)is only detected at the inlet,which indicates that the compressor is still in a mild surge condition.

关 键 词：离心压缩机 排气管气腔 深度喘振 轻度喘振 

分 类 号：TK477[动力工程及工程热物理—动力机械及工程]