Effects of flue gas extraction position on sludge-coal blending combustion generation units

WANG Yikun; LIU Honggang; ZHOU Lingyu; SHE Yuanyuan; NIE Xin; CHENG Ruishen

doi:10.19666/j.rlfd.202002022

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Effects of flue gas extraction position on sludge-coal blending combustion generation units

Thermal Power Generation Vol. 50, Issue 2, Pages: 43-48(2021)

更新时间：2025-09-28

- Effects of flue gas extraction position on sludge-coal blending combustion generation units
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202002022
  CLC： TM621
- Published：2021
- 稿件说明：
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WANG Yikun, LIU Honggang, ZHOU Lingyu, et al. Effects of flue gas extraction position on sludge-coal blending combustion generation units[J]. Thermal Power Generation, 2021, 50(2): 43-48.
DOI：

WANG Yikun, LIU Honggang, ZHOU Lingyu, et al. Effects of flue gas extraction position on sludge-coal blending combustion generation units[J]. Thermal Power Generation, 2021, 50(2): 43-48. DOI： 10.19666/j.rlfd.202002022.

摘要

为了掌握燃煤发电机组抽烟气干化污泥后掺烧对锅炉运行参数的影响规律

针对某电厂300MW等级燃煤发电机组

通过热平衡和热力校核计算分析了该机组在BMCR、75%THA、50%THA和30%THA工况时

抽烟气干化污泥后掺烧对烟气抽取比例、锅炉热效率、燃煤量、烟气温度及减温水量等参数的影响。结果表明:掺烧污泥会影响锅炉主要运行参数

且影响幅度随机组负荷的降低和抽取点烟温的降低而增加;综合考虑现场施工和改造成本等因素

建议选择低温过热器出口作为烟气抽取点。

Abstract

To study the influence of blending flue gas dried sludge on operating parameters of the coal-fired boiler

thermal balance and thermal check calculation was carried out for a 300 MW unit

and the effects of sludge-coal co-combustion on such parameters as flue gas extraction ratio

boiler thermal efficiency

coal consumption

flue gas temperature and spray water flux were analyzed

under the load of BMCR

75%THA

50%THA and 30%THA. The results show that

blending sludge will cause deterioration of the boiler main parameters

and the influence degree increased with the decrease of unit load and flue gas extraction temperature. Comprehensively considering the site construction and retrofit costs

low temperature superheater outlet is suggested to be a proper position for flue gas extraction.

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Related Author

DENG Lei

ZHOU Ping

WEI Xing

WANG Yikun

LYU Kai

ZHOU Ping

WANG Zhigang

NIE Xin

Related Institution

State Key Laboratory of Multiphase Flow for Power Engineering, Xi'an Jiaotong University

Huaneng Changjiang Environmental Protection Technology Co., Ltd

Hebei Hanfeng Power Generation Co., Ltd

Tianjin Guohua Panshan Power Generation Co., Ltd

Xi'an Xire Boiler Environmental Protection Engineering Co., Ltd

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