北京航空航天大学学报 ›› 2017, Vol. 43 ›› Issue (2): 403-409.doi: 10.13700/j.bh.1001-5965.2016.0126

• 论文 • 上一篇    下一篇

光学原位法探针测量超低减排烟气

张焰峰1,2, 杨正鹏1,2, 陈军1,2, 苏明旭1,2, 陶雷行3, 蔡小舒1,2   

  1. 1. 上海理工大学 能源与动力工程学院, 上海 200093;
    2. 上海市多相流及传热传质重点实验室, 上海 20009;
    3. 上海明华电力技术工程有限公司, 上海 200093
  • 收稿日期:2016-02-07 出版日期:2017-02-20 发布日期:2016-10-17
  • 通讯作者: 陈军,E-mail:j.chen@usst.edu.cn E-mail:j.chen@usst.edu.cn
  • 作者简介:张焰峰,男,硕士研究生。主要研究方向:光谱在线测量及在环境和排放监测中的应用;陈军,男,博士,讲师。主要研究方向:光谱在线测量及在环境和排放监测中的应用;蔡小舒,男,博士,教授,博士生导师。主要研究方向:两相流在线监测技术。
  • 基金资助:
    国家自然科学基金(41375124,91544225)

In-situ optical probe measurement of ultra-low emission reduction flue gas

ZHANG Yanfeng1,2, YANG Zhengpeng1,2, CHEN Jun1,2, SU Mingxu1,2, TAO Leixing3, CAI Xiaoshu1,2   

  1. 1. School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
    2. Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai 20009;
    3. Shanghai Minghua Power Technology Engineering Co., Ltd., Shanghai 200093, China
  • Received:2016-02-07 Online:2017-02-20 Published:2016-10-17
  • Supported by:
    National Natural Science Foundation of China (41375124,91544225)

摘要: 随着燃煤电厂超低减排的开展,烟气监测技术的要求也越来越严格。研制了应用差分光学吸收光谱(DOAS)和多波长消光的实时在线烟气监测探针,可同时对SO2、烟尘等浓度进行监测。并在实验室进行了标定,SO2浓度及烟尘反演误差均小于10%,不同浓度SO2反演浓度曲线线性度好,线性相关系数为0.999 64。利用该系统对某燃煤电厂烟气中的SO2和液滴颗粒物进行了现场监测。结果表明:该系统对SO2、液滴颗粒的监测结果与锅炉运行工况、实际运行状况吻合。

关键词: 原位法, 超低减排, 烟气, 光学探针, 燃煤电厂

Abstract: With the development of ultra-low emission reduction in coal-fired power plant, the requirement of monitoring technologies is becoming more and more rigid. A detector probe based on differential optics absorption spectroscopy (DOAS) and multi-wavelength extinction method is presented, which can be used to realize the in-situ measurement of SO2, particulate in flue gas, etc. The system was calibrated with the standard SO2 gas and polystyrene particulate, and both inversion concentrations agree well with real values. The error is less than 10%, the fitting line of seven SO2 measurement points has good linearity, and linear correlation coefficient is 0.999 64. The system was successfully applied to a coal-fired power plant in different operating conditions for a longer time continuous monitoring. Results show that the system has a good agreement between system monitoring and working conditions on SO2 and particulate in flue gas.

Key words: in-situ, ultra-low emission reduction, flue gas, optical probe, coal-fired power plant

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