燃气轮机高温涡轮颗粒沉积的研究进展  

Research progress of particle deposition in high temperature turbine for gas turbine

作　　者：张昊苏 姜玉廷[1] 陆松兵 房一博 郑群[1] ZHANG Haosu;JIANG Yuting;LU Songbing;FANG Yibo;ZHENG Qun(College of Power and Energy Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2022年第8期1122-1132,共11页Journal of Harbin Engineering University

基　　金：国家自然科学基金项目(51809065,52071107).

摘　　要：为了解决颗粒在燃气轮机高温涡轮中的沉积导致叶片的使用寿命、气动效率和冷却性能严重受损,影响燃气轮机的安全性、可靠性和经济性问题,本文结合高温涡轮颗粒沉积相关文献,系统介绍颗粒沉积动力学。通过比较不同研究者使用的沉积模型,介绍了几种颗粒沉积实验台的优势及不足,阐述了影响颗粒沉积的几种主要因素:颗粒尺寸决定其随流性进而影响沉积;存在一种使沉积现象最为严重的临界温度;冷却射流会影响沉积形貌,甚至有助于冷却。颗粒沉积对于叶片冷却的影响,多数情况下颗粒沉积会对叶片冷却造成严重的影响。结合近年相关研究进展,为避免颗粒沉积现象并切实保护高温涡轮叶片提供参考。The deposition of particles in the high temperature turbine of gas turbine will seriously damage the service life,aerodynamic efficiency and cooling performance of the blade,and affect the safety,reliability and economy of gas turbine.In order to solve this problem,this paper systematically introduces the particle deposition dynamics,introduces the deposition models used by different researchers,introduces the advantages and disadvantages of several particle deposition test facility,and expounds several main factors affecting particle deposition:the particle size determines its fluidity and then affects the deposition;There is a critical temperature which makes the deposition most serious;The cooling jet will affect the deposition morphology and even contribute to cooling.Finally,the influence of particle deposition on blade cooling is analyzed.In most cases,particle deposition will have a serious impact on blade cooling.Combined with the relevant research progress in recent years,it provides a reference for avoiding particle deposition and protecting high temperature turbine blades.

关 键 词：燃气轮机 高温涡轮 离散相 颗粒沉积 颗粒动力学 沉积模型 叶片冷却 流动传热 

分 类 号：V231.1[航空宇航科学与技术—航空宇航推进理论与工程]