一种高载荷燃气轮机高压透平可控扩散叶型开发  

Design and Experimental Verification of a Highly Loaded HP Turbine Rotor CDA Profile Design

作　　者：苏鹏飞 孔祥林[1,2] 赵世全 方宇[1,2] SU Pengfei;KONG Xianglin;ZHAO Shiquan;FANG Yu(State Key Laboratory of Clean and Efient Turbomachiney Power Equipment,Deyang Sichuan,618000;Dongfang Turbine Co.,Ltd.,Deyang Sichuan,618000)

机构地区：[1]清洁高效透平动力装备全国重点实验室,四川德阳618000 [2]东方电气集团东方汽轮机有限公司,四川德阳618000

出　　处：《东方汽轮机》2024年第1期1-5,24,共6页Dongfang Turbine

基　　金：国家重点研发计划项目“高温透平叶片制造基线与NQI集成体系建立”(2021YFF0602301);航空发动机及燃气轮机基础科学中心项目(HT-P2022-B-Ⅱ-028-001)。

摘　　要：文章针对某燃气轮机高压透平,开发了一种高载荷叶型,其叶型Zweifel载荷系数达到1.2,对该叶型在典型的燃机叶片运行压比下进行平面叶栅吹风试验验证,试验结果显示气动载荷分布与设计值匹配较好,在设计工况下叶型能量损失系数为1.4%;在1.1到1.7的压比之间叶型损失系数都小于1.7%,出口气流角的变化在1°以内;在-10°到20°的攻角变化范围内表现出优异的气动性能;不同的安装角下叶型损失系数都在1.5%以内。A highly loaded HP turbine rotor prolile has been designed for inereasing blade loading and redueing reaction withoutthe penalty of inereasing blade number and the cooling flow,the Zweifel coeicient is 1.2 at design point.linear caseade testing iscarried out to veriieation the aerodynamic perormance,the test results matches the design very well for loading distribution,theenergy loss coelicient is 0.014,and below 0.017 when the pressure ratio varies from 1.1 to 1.7,the elieet of stagger angle to theenergy loss coelficient is quite slighily,loss coellicient almost the same when the incidenee angle increase from-10°to 20°,thedifference of outet flow angle are in 1 degree at different pressure ratio.

关 键 词：燃气轮机 透平叶型 载荷系数 平面叶栅试验 

分 类 号：TK472[动力工程及工程热物理—动力机械及工程]