中国电力 ›› 2020, Vol. 53 ›› Issue (5): 172-178.DOI: 10.11930/j.issn.1004-9649.201811047

• 节能与环保 • 上一篇    下一篇

联合循环电站低负荷烟气成分控制对策研究

王凯1, 李玉刚1, 刘志坦1, 王波2, 邵卫卫2, 孙晨2   

  1. 1. 国电环境保护研究院有限公司,江苏 南京 210033;
    2. 中国科学院工程热物理研究所,北京 100190
  • 收稿日期:2018-11-08 修回日期:2019-10-20 发布日期:2020-05-05
  • 作者简介:王凯(1981-),男,博士,从事燃气电厂环保、天然气发电及分布式能源调试及性能试验研究、燃机进气系统关键集成技术及装备研究和应用等,E-mail:ernest_1999@163.com;李玉刚(1987-),男,通信作者,硕士研究生,从事燃气电厂环保、燃机燃烧机理与特性研究,E-mail:liyugangxin@163.com
  • 基金资助:
    江苏省“六大人才高峰”高层次人才选拔培养计划资助项目(江苏省天然气发电机组NOx排放控制策略及关键技术研究应用,JNHB-080)

Study on the Control Strategy of Flue Gas in the Combined Cycle Power Station under Low Load Conditions

WANG Kai1, LI Yugang1, LIU Zhitan1, WANG Bo2, SHAO Weiwei2, SUN Chen2   

  1. 1. National Environmental Protection Research Institute for Electric Power Co., Ltd., Nanjing 210033, China;
    2. Insititute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2018-11-08 Revised:2019-10-20 Published:2020-05-05
  • Supported by:
    This work is supported by Jiangsu Province "Six Talents Peaks" High-level Talents Selection and Training Subsidy Project (Research and Application of NOx Emission Control Strategy and Key Technologies for Jiangsu Gas power plants, No.JNHB-080)

摘要: 联合循环电站采用的重型燃气轮机在启动以及低负荷阶段普遍存在冒黄烟现象,其中承担调峰工作的机组问题尤为突出。初步判断,冒黄烟是由于低负荷工况下烟气中NO2含量升高所致。为进一步理清燃气轮机黄烟生成机理,有效地控制低负荷工况下烟气中NO2含量,以GE公司6F.03燃机为研究对象,针对燃机启动阶段,采用现场烟气测试的方法对余热锅炉内部不同位置烟气成分进行监测,并对比分析黄烟生成的影响因素,最后从燃机侧和余热锅炉侧提出了重型燃气轮机抑制黄烟的对策及治理措施。

关键词: 联合循环电站, 低负荷, NO2含量, 治理措施

Abstract: The emission problem of yellow plume generally occurs at the combined cycle power plants where the heavy-duty gas turbines is installed and operated during the turbine start-up process or under low load conditions. It becomes even worse especially for those units actively participating the peak load regulation. It is found out that yellow plume is caused by the rising NO2 concentration in flue gas. In order to further understand the formation mechanism of yellow plume in gas turbines for the purpose of more effective control on the content of NO2 in flue gas under low load conditions, the authors took GE 6F.03 gas turbine as the research object and implemented the method of field flue gas testing by measuring the flue gas composition at different positions in the heat recovery steam generator (HRSG) at the start-up stage of gas turbine. Then the factors affecting yellow plume generation were analyzed and compared. Finally from the gas turbine side and the heat recovery steam generator (HRSG) side, the countermeasures and detailed control procedures for heavy gas turbine to suppress yellow plume are put forward.

Key words: combined cycle power plant, low load, NO2 concentration, control measures