摘要
某工业型燃气轮机在实际运行过程中,出现了箱装体超温报警故障,故障均发生在70%功率以上工况,100%功率引射空气流量为5.4 kg/s,冷却空气少是造成箱装体内环境温度过高的原因。从冷却空气引射原理出发,进行了排气管与排气蜗壳出口对中偏差试验、排气管烟气处理装置阻力调整试验、引射空气管路阻力调整试验。通过试验发现,排气管与排气蜗壳出口的对中变化对空气引射影响较小,烟气处理装置及引射管路阻力对燃气轮机箱装体空气引射量影响较大。可通过优化烟气处理装置及优化引射进气管路来提高空气引射量。
During the actual operation of an industrial gas turbine,the over-temperature alarm fault occurred in the case,and all the faults occurred in the working condition above 70%power.The 100%power injection air flow rate was 5.4 kg/s,and the lack of cooling air was the cause of the over-temperature in the case.Based on the principle of cooling air injection,the alignment deviation test between the exhaust pipe and power turbine outlet,the resistance adjustment test of exhaust pipe flue gas treatment device and the resistance adjustment test of injection air pipeline were carried out.Through the test,it was found that the alignment change between the exhaust pipe and the outlet of the power turbine has little influence on the air injection,while the resistance of the flue gas treatment device and the injection pipeline has great influence on the injected air volume of the gas turbine case.The air injection quantity can be increased by optimizing the flue gas treatment device and the injection air inlet pipeline.
作者
吴一鸣
魏昌淼
周拓
Wu Yiming;Wei Changmiao;Zhou Tuo(Wuxi Division of No.703 Research Institute of CSSC,Jiangsu Wuxi 214151,China)
出处
《燃气轮机技术》
2022年第3期49-53,共5页
Gas Turbine Technology
基金
国防科技创新特区基金资助项目(17-H-05-ZT-002-041-01)。
