Denitration performance of an ultra-supercritical unit boiler with double-reheat cycle under full load conditions

BAI Wengang; YU Zaisong; ZHANG Yifan; YAO Mingyu

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Denitration performance of an ultra-supercritical unit boiler with double-reheat cycle under full load conditions

Thermal Power Generation Issue 7, (2017)

更新时间：2025-09-28

- Denitration performance of an ultra-supercritical unit boiler with double-reheat cycle under full load conditions
- 作者机构：
  
  西安热工研究院有限公司,陕西,西安,710054
- 作者简介：
- 基金信息：
- DOI：
  CLC： X773;TM621
- Published Online：02 August 2017，
  
  Published：2017
- 稿件说明：
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BAI Wengang, YU Zaisong, ZHANG Yifan, et al. Denitration performance of an ultra-supercritical unit boiler with double-reheat cycle under full load conditions[J]. Thermal Power Generation, 2017, (7).
DOI：

BAI Wengang, YU Zaisong, ZHANG Yifan, et al. Denitration performance of an ultra-supercritical unit boiler with double-reheat cycle under full load conditions[J]. Thermal Power Generation, 2017, (7). DOI：

摘要

以华能安源发电有限责任公司超超临界660 MW二次再热机组锅炉和华能莱芜电厂超超临界1 000 MW二次再热机组锅炉为研究对象，通过锅炉校核热力计算对二次再热机组锅炉不同负荷工况下烟气脱硝系统选择性催化还原（SCR）装置入口烟温特性进行了研究，并与电厂实际运行数据和常规超超临界一次再热机组锅炉进行了对比。结果表明：本文计算结果与电厂实际运行结果吻合很好；超超临界二次再热机组锅炉能够实现锅炉全负荷脱硝，随着锅炉负荷的降低，其SCR装置入口烟温逐渐降低，在最低30%BMCR负荷时，二次再热机组锅炉SCR装置入口烟温仍高于320 ℃，比相同容量的常规一次再热机组锅炉SCR装置入口烟温高30~40 ℃；超超临界二次再热机组锅炉能实现全负荷脱硝的主要原因在于锅炉给水温度显著提高，比常规一次再热机组锅炉给水温度提高约30 ℃。该研究结果对超超临界二次再热机组的设计和建设提供了参考和借鉴。

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Related Author

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Related Institution

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State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University

State Key Laboratory of Efficient and Clean Coal-fired Utility Boilers, Harbin Boiler Company Limited

Thermal Energy Engineering Institute, Shanghai Jiao Tong University

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