低温轴流压缩机叶顶间隙安全性测试研究  

Experimental Study of Tip Clearance for Cryogenic Axial Compressor

作　　者：张文 周恩民 闫羽佳 曾明洁 张田雨 刘政 Wen Zhang;En-min Zhou;Yu-jia Yan;Ming-jie Zeng;Tian-yu Zhang;Zheng Liu(High Speed Aerodynamics Institute,China Aerodynamics Research and Development Center)

机构地区：[1]中国空气动力研究与发展中心高速空气动力研究所

出　　处：《风机技术》2025年第2期67-72,共6页Chinese Journal of Turbomachinery

摘　　要：为探究低温轴流压缩机动叶片在深低温环境和频繁多变负载等复杂耦合工况下的叶顶间隙特性,本文考虑工质温度、压力和压缩机转速参数,在不同运行工况范围内对动叶片的叶顶间隙进行了试验测试。试验结果表明:工质温度和压缩机转速均对叶顶间隙产生影响,而对工质压力基本无影响。根据测试结果设置了叶顶间隙安全阈值和联锁,当触发联锁时,压缩机立即减速,降低风险。Aiming to explore the tip clearence characteristic under the deep low-temperature environment and variable load working condition for cryogenic axial compressor,the tip clearence test in different conditions considering temperature,pressure and speed are carried out.The test results shows that both temperature and speed have the influence on the tip clearence,but the pressure almost no impact on it.The security threshold is set based on the test results,when the interlock is triggered,the axial compressor immediately slows down to reduce the risk.

关 键 词：低温轴流压缩机 碳纤维叶片 叶尖定时 叶顶间隙 运行安全 

分 类 号：TH453[机械工程—机械制造及自动化]