中国电力 ›› 2017, Vol. 50 ›› Issue (12): 75-80.DOI: 10.11930/j.issn.1004-9649.201612119

• 发电 • 上一篇    下一篇

300 MW低热值煤超低排放循环流化床发电的设计与运行

佟博恒1, 柳成亮2, 苏虎3, 刘青1, 杨海瑞1, 蒋文斌1   

  1. 1. 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,北京 100084;
    2. 山西国峰煤电有限责任公司,山西 汾阳 032200;
    3. 东方电气集团东方锅炉股份有限公司,四川 自贡 630001
  • 收稿日期:2016-12-18 出版日期:2017-12-20 发布日期:2018-01-30
  • 作者简介:佟博恒(1992—),男,辽宁抚顺人,硕士研究生,从事循环流化床锅炉的研究。E-mail:tbhhome@126.com
  • 基金资助:
    山西省科技重大专项招标项目(MD2015-04)

Design and Operation of a 300 MW Ultra-Low Emission CFB Boiler Burning Low Calorific Coal

TONG Boheng1, LIU Chengliang2, SU Hu3, LIU Qing1, YANG Hairui1, JIANG Wenbin1   

  1. 1. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering Tsinghua University, Beijing 100084, China;
    2. Shanxi Guofeng Coal and Electricity Co., Ltd., Fenyang 032200, China;
    3. Dongfang Boiler Group Co., Ltd., Zigong 630001, China
  • Received:2016-12-18 Online:2017-12-20 Published:2018-01-30
  • Supported by:
    This work is supported by Key Project of Science and Technology of Shanxi (No. MD2015-04).

摘要: 介绍了山西国锋300 MW低热值煤综合利用亚临界循环流化床发电项目的设计与运行情况,讨论了超低排放电厂的污染物控制技术的原理与应用情况。该项目采用炉内喷钙脱硫和炉外半干法脱硫控制SO2、流态重构的节能型循环流化床低氮燃烧技术和SNCR脱硝控制NOx、布袋除尘控制粉尘。研究结果显示,锅炉运行稳定、高效,满负荷下热效率为90.61%;烟气SO2排放质量浓度为18.75 mg/m3,NOx排放质量浓度为40.30 mg/m3,烟尘排放质量浓度为4.9 mg/m3,均达到了超低排放指标,表明循环流化床锅炉采用低氮燃烧和SNCR、炉内脱硫和半干法循环流化床烟气净化、布袋除尘是实现超低排放的可行的技术路线。

关键词: 循环流化床锅炉, 低热值煤, 超低排放, 技术路线

Abstract: The paper introduces the design and operation of Shanxi Guofeng 300 MW ultra-low emission subcritical units burning low calorific coal. The principles and the application of the pollution controlling technologies are discussed. In this project, in-furnace desulfurizationand semi-dry flue gas desulfurization are used to control SO2, the low-nitrogen combustion technology based on the state specification theory and SNCR to control NOx, and bag filters to control powder . The results show that the boiler runs steadily and efficiently. The thermal efficiency at full load is 90.61%. The SO2, NOx and dust emission concentration at full load are 18.75 mg/m3, 40.30 mg/m3 and 4.9 mg/m3, respectively, all of which meet the ultra-low emission standards. The results indicate that the low-NOx combustion combined with ultra-low emission technologies is applicable.

Key words: circulating fluidized bed boiler, low quality coal, ultra-low emission, technical route

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