Operation optimization for retrofitted 1025 t/h boiler and experimental study on its NO<sub>x</sub> emission

LIANG Ligang1; MENG Yong1; WU Shenglai1 Xi'an Thermal Power Research Institute Co.Ltd.

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Operation optimization for retrofitted 1025 t/h boiler and experimental study on its NO_x emission

更新时间：2025-09-28

- Operation optimization for retrofitted 1025 t/h boiler and experimental study on its NO_x emission
- Thermal Power Generation Vol. 42, Issue 1, Pages: 63-66(2013)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK227
- Published：2013
- 稿件说明：
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LIANG Ligang1, MENG Yong1, WU Shenglai1 Xi'an Thermal Power Research Institute Co.Ltd.. Operation optimization for retrofitted 1025 t/h boiler and experimental study on its NO_x emission[J]. Thermal power generation, 2013, 42(1): 63-66.
DOI：

LIANG Ligang1, MENG Yong1, WU Shenglai1 Xi'an Thermal Power Research Institute Co.Ltd.. Operation optimization for retrofitted 1025 t/h boiler and experimental study on its NO_x emission[J]. Thermal power generation, 2013, 42(1): 63-66. DOI：

摘要

对某电厂1 025t/h锅炉进行了烧烟煤改造后的运行优化试验

分析了氧量、燃尽风和磨煤机组合方式等参数变化对锅炉效率及NOx排放浓度的影响。结果表明

在机组330、264、198MW负荷下

将氧量分别控制在2.35%、3.30%、4.20%左右;在60%～100%额定负荷范围内将OFA风门开度可控制在60%～80%;在燃烧情况和设备运行条件允许的情况下减少上层磨煤机运行

尽量下层磨煤机运行等

可使锅炉在最佳状态下运行

提高锅炉效率

同时降低NOx排放的浓度。

Abstract

Operation optimization experiment was conducted on a retrofitted 1 025 t/h boiler

and the influence of parameters such as oxygen content

over-fire air(OFA) and the combination mode of coal mill on boiler efficiency and NOx emission were investigated.The results showed that

for the unit under 330

264 and 198 MW load condition

such adjustments as controlling the oxygen content at about 2.35%

3.30% and 4.20%

keeping the OFA gate opening within 60%-80% when the load ranged from 60% to 100% of the rated load

and running the coal mill at lower layer as much as possible but not the one at upper layer

can realize the boiler's optimal operation

enhance the boiler efficiency and reduce the NOx emission.

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Operation optimization for retrofitted 1025 t/h boiler and experimental study on its NOx emission

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摘要

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Operation optimization for retrofitted 1025 t/h boiler and experimental study on its NO_x emission