Layout and optimization of a new-type connecting flue with side-inlet and side-outlet for SCR denitrification systems

JIA Linquan; HAN Zhijie; REN Rui; ZHANG Guangjie; CHANG Lei; DONG Chen

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Layout and optimization of a new-type connecting flue with side-inlet and side-outlet for SCR denitrification systems

Thermal Power Generation Issue 3, (2017)

更新时间：2025-09-28

- Layout and optimization of a new-type connecting flue with side-inlet and side-outlet for SCR denitrification systems
- 作者机构：
  
  1. 西安热工研究院有限公司,陕西,西安,710032
  2. 西安西热锅炉环保工程有限公司,陕西,西安,710032
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK16
- Published Online：27 March 2017，
  
  Published：2017
- 稿件说明：
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JIA Linquan, HAN Zhijie, REN Rui, et al. Layout and optimization of a new-type connecting flue with side-inlet and side-outlet for SCR denitrification systems[J]. Thermal Power Generation, 2017, (3).
DOI：

JIA Linquan, HAN Zhijie, REN Rui, et al. Layout and optimization of a new-type connecting flue with side-inlet and side-outlet for SCR denitrification systems[J]. Thermal Power Generation, 2017, (3). DOI：

摘要

针对燃煤机组脱硝改造中场地空间有限，选择性催化还原（ SCR）脱硝装置无法按常规设计布置的情况，研究了一种 SCR脱硝系统侧进、侧出新型连接烟道，并基于计算流体动力学（CFD）流场模拟，对新型 SCR烟气脱硝装置的流场进行了优化设计，设置合理的导流板，使得进入第一层催化剂的烟气速度、 NH3浓度分布、烟气流线与垂直方向夹角以及系统阻力均满足相关技术要求。该新型 SCR脱硝系统连接烟道应用于某燃煤发电厂 2×135 MW机组，有效解决了现场空间无法布置常规 SCR脱硝装置的问题，其脱硝效率达到 85%以上，氨逃逸率小于 3 mg/m3，运行效果较好。为解决燃煤机组加装 SCR装置空间不足的问题提供了一种有效的解决办法。

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