某型燃气轮机燃烧中低热值燃料随环境温度变化的控制规律分析  

SYSTEM PERFORMANCE ANALYSIS AND CONTROL STRATEGY STUDY OF GAS TURBINE BURNING SYNGAS FUEL WITH VARIATION OF AMBIENT TEMPERATURE

作　　者：郭磊[1,2] 崔玉峰[1] 林飞宇 徐纲[1] 朱俊强[1] 

机构地区：[1]中国科学院工程热物理研究所先进能源与动力重点实验室,北京100190 [2]中国科学院研究生院,北京100190 [3]吐哈石油鄯善物业公司,新疆吐哈838202

出　　处：《工程热物理学报》2009年第4期577-580,共4页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展计处(973)项目子课题“燃气轮机气动热力设计理论与系统集成”(No.2007CB210109)

摘　　要：本文采用数值模拟方法建立了某重型燃机天然气模型和合成气模型,依据现场数据进行了校核,同时利用合成气模型计算了在环境温度从-25～35℃变化过程中燃机整机的性能曲线,并据此提出了燃机的调节控制规律。环境温度降低时,需要对燃机进行燃机出力限制,关小压气机导叶,可有效降低透平出功,有效缓解轴负荷;环境温度升高时,需要对压气机进行防喘保护,少量放气方法可以明显增加压气机裕度,有效地保证压气机在安全稳定范围内工作。This paper describes a system model and control strategy of a heavy-duty gas turbine burning syngas. Firstly, the design and off-design model of standard gas turbine burning NG has been established base on the data from the field test. Base on the model, a modified scheme of the gas turbine burning syngas fuel has been raised. According to the performance simulation at a variety of ambient temperatures from -25℃ to 35℃, the control strategy has been bringing forward on the modified gas turbine. The results indicate that with the fall of the ambient temperature, it will reach turbine output limitation point, regulating the angle of inlet guide vane to reduce the cross passage, the gas turbine will work safely. With the rise of the ambient temperature, it will reach the compressor surge protection point. Blowing off a little air from some intermediate stage of compressor, the compressor surge margin will increase while the thermal efficiency of gas turbine will keep high level.

关 键 词：燃气轮机 控制规律 控制策略 

分 类 号：TK124[动力工程及工程热物理—工程热物理]