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过程工程学报 ›› 2020, Vol. 20 ›› Issue (6): 728-736.DOI: 10.12034/j.issn.1009-606X.219258

• 环境与能源 • 上一篇    下一篇

典型煤炭燃料在民用解耦炉中的燃烧实验研究

韩 健1,2, 刘新华1*, 何京东3   

  1. 1. 中国科学院过程工程研究所多相复杂系统国家重点实验室,北京 100190 2. 中国科学院大学化学工程学院,北京 100049 3. 中国科学院,北京 100864
  • 收稿日期:2019-07-17 修回日期:2019-10-12 出版日期:2020-06-22 发布日期:2020-06-19
  • 通讯作者: 刘新华
  • 基金资助:
    中国科学院A类战略性先导科技专项

Experimental study on the combustion of typical coal fuels in domestic decoupling stoves

Jian HAN1,2, Xinhua LIU1*, Jingdong HE3   

  1. 1. State Key Laboratory of Multiphase Complicated Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China 2. School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China 3. Chinese Academy of Sciences, Beijing 100864, China
  • Received:2019-07-17 Revised:2019-10-12 Online:2020-06-22 Published:2020-06-19

摘要: 实验对比研究了烟煤块状半焦及烟煤型煤等煤炭燃料在民用解耦炉中燃烧时的污染物排放特性和炊事能力,并基于解耦测试炉对烟煤型煤的特征尺寸进行优化,验证了解耦炉具对不同种类民用煤炭燃料的适应性。结果表明,民用解耦燃煤炉具特有的结构特征和通风方式有利于NOx和CO的同时减排。若在解耦炉中燃烧烟煤洁净型煤,可进一步实现对SO2和颗粒物(PM)的有效控制。型煤尺寸对炉具污染物排放影响显著,尺寸优化后的烟煤洁净型煤在解耦炉中稳定燃烧时NO, SO2, CO和PM的平均排放浓度按基准氧含量9vol%折算后,分别低于190, 300, 380和30 mg/m3,炊事功率可达1.65 kW。

关键词: 解耦炉具, 煤燃烧, 污染物排放, 炊事功率

Abstract: Burning bituminous coal, anthracite or semicoke in traditional domestic coal-fired stoves generally suffers from low thermal efficiency and large pollutant emissions, thus causing serious environmental problems. Decoupling combustion technology invented by the Institute of Process Engineering, Chinese Academy of Sciences combines the advantages of both traditional updraft and downdraft combustion modes, which can be used to suppress the emissions of multiple pollutants simultaneously and realize high-efficiency heating and cooking. In this work, in order to clarify the adaptability of domestic decoupling stoves to various civil coal fuels, the pollutant emissions and cooking power of a tested domestic decoupling stove were experimentally investigated by burning several kinds of civil coal fuels such as bituminous lump coal, anthracite lump coal, lump semicoke and bituminous briquettes. Further, the characteristic size of bituminous briquettes was optimized according to the pollutant emissions and cooking power of the tested domestic decoupling stove. The experimental results indicated that the decoupling combustion could facilitate the simultaneous suppression of nitrogen oxides (NOx) and carbon monoxide (CO) emissions because of the unique stove structure and draft type, as well as the reduction of sulfur oxide (SO2) and particulate matter (PM) by using clean briquettes from bituminous coal as the fuels. Briquette size had significant effects on the pollutant emissions of domestic decoupling stoves. If burning bituminous briquettes with optimized sizes in domestic decoupling stoves, the average NO, SO2, CO and PM emission concentrations at the baseline oxygen content of 9vol% were lower than 190, 300, 380 and 30 mg/m3 respectively, and the cooking power was high up to 1.65 kW.

Key words: decoupling stove, coal combustion, pollutant emission, cooking power