新型高效空气冷却燃气轮机系统热力性能分析  

Analysis on Thermodynamic Performance of a Novel Gas Turbine System with High Effective Utilization of Bleed Air Cooling

作　　者：陈强 王凯琳 姜文彬 阙晓斌 尉涵 武文涛 CHEN Qiang;WANG Kailin;JIANG Wenbin;QUE Xiaobin;YU Han;WU Wentao(China United Gas Turbine Technology Co.,Ltd.,Beijing 100016,China)

机构地区：[1]中国联合重型燃气轮机技术有限公司,北京100016

出　　处：《动力工程学报》2024年第9期1473-1481,共9页Journal of Chinese Society of Power Engineering

基　　金：国家科技重大专项基础研究资助项目(HT-Y2019-Ⅰ-0002-0003)。

摘　　要：为改善空气冷却重型燃气轮机热力性能,提出了一种能够高效利用抽气能量的新型空气冷却燃气轮机系统并研究了其热力性能的变化。以传统典型F级燃气轮机不同环境温度下的性能数据作为对比基础,通过数值仿真分析了新型高效空气冷却燃气轮机中冷却系统设计参数变更条件下的系统性能指标变化,计算对比了3种运行模式下的热力性能。结果表明:新型高效空气冷却燃气轮机能够有效降低压气机抽气温度,进而改善燃气轮机热力性能。在夏季工况下,进口温度分别被冷却到30、20、15℃时,燃气轮机功率分别升高了25.92、40.49、48.22 MW,燃气轮机效率分别提升了0.78、1.19、1.40个百分点。To improve the thermodynamic performance of the heavy duty gas turbine with bleed air,a novel gas turbine system with high effective utilization of bleed air energy was proposed,and the change of thermodynamic performance was researched.Taking the performance data of a traditional typical F-class gas turbine under different ambient temperature conditions as the comparison reference,for the novel gas turbine with high effective bleed air cooling,the changes of performance indicators of the total system were analyzed with different design parameters of cooling system by numerical simulation,while the thermodynamic performances under three operation modes were calculated and compared.Results show that the temperature of bleed air from compressor can be effectively decreased by adopting the novel gas turbine system with high effective utilization of bleed air cooling,and the thermodynamic performance of gas turbine is further improved.Under summer condition,when the inlet air temperature is cooled to 30,20,and 15℃,respectively,the output power is increased by 25.92,40.49,and 48.22 MW,and the efficiency of gas turbine is improved by 0.78,1.19,and 1.40 percentage points.

关 键 词：燃气轮机 压气机 抽气冷却 热力性能 进气冷却 变工况 

分 类 号：TK472[动力工程及工程热物理—动力机械及工程]