考虑热障涂层及冷却结构影响的某F级燃气轮机火焰筒数值研究  

Numerical Study on Combustor Liner of F-class Gas Turbine Considering the Effect of Thermal Barrier Coatings and Cooling Structures

作　　者：肖俊峰[1] 高松[1] 闫安[1] 上官博[1] 张蒙[1] 何伟 李晓丰[1] 张博瑶 XIAO Junfeng;GAO Song;YAN An;SHANGGUAN Bo;ZHANG Meng;HE Wei;LI Xiaofeng;ZHANG Boyao(Xi'an Thermal Power Research Institute Company Limited,Xi'an 710054,China)

机构地区：[1]西安热工研究院有限公司,西安710054

出　　处：《动力工程学报》2024年第9期1408-1415,共8页Journal of Chinese Society of Power Engineering

基　　金：航空发动机及燃气轮机重大专项基础研究资助项目(J2019-I-0003-0004);国家自然科学基金资助项目(51405384);中国华能集团公司科技资助项目(HNKJ20-H42);西安热工院科研项目(TI-23-TYK26)。

摘　　要：以某F级燃气轮机燃烧室火焰筒为研究对象,考虑热障涂层及冷却结构对火焰筒气动传热影响,基于流热固耦合方法对额定工况下的火焰筒进行了内部流场、温度场和应力场分析,并将数值分析结果与火焰筒实际损伤情况进行对比。结果表明:数值分析结果的火焰筒高应力区域与火焰筒实际损伤区域基本吻合,采用流热固耦合方法可以预测火焰筒实际损伤情况;不同位置的热障涂层陶瓷层隔热效果相近;基体和热障涂层陶瓷层在冷却结构附近的区域均为高应力区域。Taking the combustor liner of F-class gas turbine as the research object,analysis was carried out on the internal flow field,temperature field and stress field of the combustor liner under rating operation conditions based on fluid-thermal-solid coupling method,considering the effect of thermal barrier coatings and cooling structures on the aerodynamic heat transfer of the combustor liner.The results of numerical analysis were compared with the actual damage situation of the combustor liner.Results show that the high stress areas are basically consistent with the actual damaged regions of the combustor liner,thus the fluid-thermal-solid coupling method can be used to predict the damage situation of the combustor liner.The ceramic layers of the thermal barrier coatings at different locations have similar insulation effect.Both the substrate and the ceramic layers of the thermal barrier coatings in the vicinity of the cooling structures are areas of high stress.

关 键 词：火焰筒 热障涂层 冷却结构 流热固耦合 损伤分析 数值模拟 

分 类 号：TK47[动力工程及工程热物理—动力机械及工程]