燃气轮机燃烧室变工况运行稳定性的建模与分析

发布时间：2018-02-28 11:28

  本文关键词： 燃气轮机 系统建模仿真 变工况 声学模态 旁路阀　出处：《工程热物理学报》2016年08期 　论文类型：期刊论文

【摘要】：F级先进燃气轮机机组在清洁发电技术领域有较多应用,为有效提高机组运行安全性及可靠性,需针对燃气轮机系统尤其是燃烧室特性进行多层次建模分析。本文首先采用整体模块化建模方法,以三菱公司M701F型机组为研究对象,结合机组实测数据,研究了燃机设计/非设计工况性能,掌握了环境条件、IGV控制及排气温度等变量因素对机组特性影响规律。结合系统模型分析结果,针对该机组先进的多喷嘴旋流燃烧室搭建线性网络模型,研究燃烧室的热声稳定性,结果给出了燃烧筒内存在的平面波及周向声波等多种模态形式,与机组实际特性能够较好地吻合,进一步分析了M701F机组特有的旁路阀结构对于燃烧室模态稳定性的影响。
[Abstract]:Class F advanced gas turbine units have been widely used in the field of clean power generation technology, in order to effectively improve the operating safety and reliability of the units, Multi-level modeling and analysis of gas turbine system, especially combustion chamber, is needed. Firstly, the whole modular modeling method is adopted in this paper, and the M701F unit of Mitsubishi Company is taken as the research object, and the measured data of the unit are combined. The design / off-design performance of gas turbine is studied, and the influence of environmental conditions, such as IGV control and exhaust temperature, on the performance of the unit is studied. Combined with the results of system model analysis, For the advanced multi-nozzle swirl combustor of the unit, a linear network model is built to study the thermoacoustic stability of the combustion chamber. The results show that there are many modes such as plane and circumferential acoustic waves in the combustion cylinder. The characteristics of M701F unit are in good agreement with the actual characteristics. The influence of the bypass valve structure of M701F unit on the modal stability of the combustion chamber is further analyzed.
【作者单位】： 清华大学热能工程系热科学与动力工程教育部重点实验室;广东电网有限责任公司电力科学研究院;
【基金】：国家自然科学基金资助项目(No.51376107)
【分类号】：TK473
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本文编号：1547105