李晓东,施超凡,刘钢,沈启华,李宽庭,罗智斌,陈春
LI Xiaodong,SHI Chaofan,LIU Gang,SHEN Qihua,LI Kuanting,LUO Zhibin,CHEN Chun

• 1:中电(四会)热电有限责任公司
• 2:上海明华电力科技有限公司

摘要(Abstract)：

为实现调峰燃气轮机点火阶段厂用电耗减少及快速启动的目标，结合机组实际工况和现有的燃气轮机工业标准，研究取消燃气轮机点火前吹扫的可行性。通过对余热锅炉排气流道及连接部位的几何结构进行分析，提出一种兼顾取样安全性和数据可靠性的天然气监测系统布置策略。以某电厂安萨尔多AE94.3A型燃气轮机为例，分析燃气轮机点火前吹扫流程，提出一种基于天然气浓度判断的弹性吹扫方案，并优化点火失败、燃气轮机跳闸、人为干预等异常工况下的处理流程。通过分析优化前的机组启动曲线可知，吹扫流程优化完成后可在一定程度上减少燃气轮机启动时间，降低厂用电耗，提升蒸汽轮机暖机效果。
In order to achieve the target of low power consumption of the plant and quick start-up in the ignition phase of the peak-regulating natural gas turbine, the feasibility of canceling purge before ignition of natural gas turbine is studied considering of the actual working conditions of the unit and the existing industry standards of natural gas turbines. Through the analysis of geometric structures of the exhaust passage and the connecting part of heat recovery boiler, a layout strategy of natural gas monitoring system considering both sampling safety and data reliability is proposed. Take Ansaldo AE94.3A natural gas turbine in a power plant as an example, the purge process before ignition of natural gas turbine is analyzed, the elastic purging scheme based on concentration judgment for natural gas is proposed and process flows under abnormal working conditions, such as ignition failure, trip of natural gas turbine and human intervention are optimized. The analysis of the start-up curve of the unit before optimization shows that, the start-up time of the natural gas turbine can be reduced to a certain extent, the power consumption of the plant can be reduced, and the heating effect of the steam turbine can be improved after the optimization of the purge process.

关键词(KeyWords)： 调峰燃气轮机;厂用电;快速启动;点火前吹扫;天然气浓度判断
peak-regulating natural gas turbine;power consumption of plant;quick start-up;purge before ignition;concentration judgment of natural gas

Abstract:

Keywords:

基金项目(Foundation): 国家电投集团广东电力有限公司科技项目（ZDSH202001）

作者(Author): 李晓东,施超凡,刘钢,沈启华,李宽庭,罗智斌,陈春
LI Xiaodong,SHI Chaofan,LIU Gang,SHEN Qihua,LI Kuanting,LUO Zhibin,CHEN Chun

DOI: 10.19585/j.zjdl.202310015

参考文献(References)：

• [1]罗时杰.9FA燃机清吹系统控制分析及改进措施[J].机械工程师，2011(11):143-145.LUO Shijie. Control analysis and improvement measures of 9FA gas turbine blowing system[J].Mechanical Engineer,2011(11):143-145.
• [2]黄文辉.M701F3型燃气轮机清吹逻辑优化[J].企业技术开发，2018,37(11):66-68.HUANG Wenhui. Logic optimization of blowing for M701F3 gas turbine[J]. Technological Development of Enterprise,2018,37(11):66-68.
• [3]广东惠州天然气发电有限公司.大型燃气-蒸汽联合循环发电设备与运行机务分册[M].北京：机械工业出版社，2013.
• [4]杨顺虎.燃气-蒸汽联合循环发电设备及运行[M].北京：中国电力出版社，2003.
• [5]清华大学电力工程系燃气轮机教研组.燃气轮机：下册[M].北京：水利电力出版社，1978.
• [6]高军.无补燃型燃机余热锅炉蒸汽吹扫实践与分析[J].内蒙古电力技术，2007,25(1):39-40.GAO Jun.Practice and analysis to waste heat boiler steam purge of non supplemental firing gas turbine[J]. Inner Mongolia Electric Power,2007,25(1):39-40.
• [7]燕金栋.M701F型燃气-蒸汽联合循环机组点火流程分析与优化[J].发电设备，2016,30(3):194-196.YAN Jindong. Analysis and optimization on the ignition process of M701F gas-steam combined cycle units[J].Power Equipment,2016,30(3):194-196.
• [8]胥波，董奎，梁珊珊.M701F4燃气轮机运行技术优化措施[J].东方电气评论，2015,29(4):79-82.XU Bo,DONG Kui,LIANG Shanshan.Optimization for gas turbine M701F4[J].Dongfang Electric Review,2015,29(4):79-82.
• [9]徐刚，张蕴峰.M701F3型C/C机组点火吹扫时间的调整和改进[J].东方电气评论，2013,27(2):56-60.XU Gang,ZHANG Yunfeng. Adjustment and improvement of purge time of M701F3 C/C units before ignition[J].Dongfang Electric Review,2013,27(2):56-60.
• [10]张蕴峰，林炎城，陈正建，等.M701F燃气轮机组启动过程优化[J].吉林电力，2012,40(3):47-49.ZHANG Yunfeng,LIN Yancheng,CHEN Zhengjian,et al. Optimization of startup process of M701F gas turbine unit[J].Jilin Electric Power,2012,40(3):47-49.
• [11] National Fire Protection Association. NFPA 8506 standard on heat recovery steam generator system 1998 edition[S].1998.
• [12] Japanese Standerd Association. gas turbines-procurementPart 1:general introduction and definitions:JIS B 8042-1—2001[S].2001.
• [13]国家质量监督检验检疫总局，中国国家标准化管理委员会.燃气轮机采购第3部分：设计要求：GB/T 14099.3—2009[S].北京：中国标准出版社，2010.
• [14]张俊雄.燃机SFC系统调试研究与方法讨论[J].电气时代，2020(10):73-76.ZHANG Junxiong.Debugging research and method discussion of gas turbine SFC system[J]. Electric Age,2020(10):73-76.
• [15]宫志鹏，张巍.SFC在燃机启动过程中故障分析及处理[J].电工技术，2020(18):60-62.GONG Zhipeng,ZHANG Wei. Fault analysis and treatment of SFC in gas turbine start-up process[J]. Electric Engineering,2020(18):60-62.
• [16]刘明行，蔡迈，王磊.燃气轮机组SFC变频装置原理及应用探究[J].华东电力，2010,38(11):1763-1767.LIU Minghang,CAI Mai,WANG Lei. Research on the principle and application of static frequency converter in gas turbine set[J]. East China Electric Power,2010,38(11):1763-1767.
• [17]管金，何宗泽，吕小静，等.30 kW微型燃气轮机发电机组启动实验研究[J].发电技术，2021,42(4):404-411.GUAN Jin,HE Zongze,LYU Xiaojing,et al.Experimental study on start-up of 30 kW micro gas turbine generator set[J].Power Generation Technology,2021,42(4):404-411.
• [18]黄海涛，林建，查俊吉.基于可分离热电燃气轮机模型的电-气-热联合系统调度运行研究[J].电测与仪表，2022,59(1):141-147.HUANG Haitao,LIN Jian,ZHA Junji. Research on dispatching operation of combined electric-gas-heat system based on separable thermoelectric gas turbine model[J].Electrical Measurement&Instrumentation,2022,59(1):141-147.