Numerical simulation of inner abrasion in a selective catalytic reduction deNOx device

ZHONG Yafei; WEI Hongqi; CHEN Jingwei

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Numerical simulation of inner abrasion in a selective catalytic reduction deNOx device

更新时间：2025-09-28

- Numerical simulation of inner abrasion in a selective catalytic reduction deNOx device
- Thermal Power Generation Issue 2, (2016)
- 作者机构：
  
  东南大学能源与环境学院,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： X773
- Published Online：15 March 2016，
  
  Published：2016
- 稿件说明：
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ZHONG Yafei, WEI Hongqi, CHEN Jingwei. Numerical simulation of inner abrasion in a selective catalytic reduction deNOx device[J]. Thermal power generation, 2016, (2).
DOI：

ZHONG Yafei, WEI Hongqi, CHEN Jingwei. Numerical simulation of inner abrasion in a selective catalytic reduction deNOx device[J]. Thermal power generation, 2016, (2). DOI：

摘要

为解决选择性催化还原(SCR)脱硝装置在运行中出现的喷氨喷嘴和催化剂层严重磨损问题

采用GAMBIT软件模拟脱硝装置内部流场的速度分布，并通过现场冷态试验验证模型的有效性。模拟结果表明:SCR脱硝装置入口处烟道存在上下或左右倾斜

整流格栅和转向弯头处存在高度差

使得烟气经过整流格栅后进入催化剂层的速度分布不均匀

导致喷氨喷嘴和催化剂层磨损；本文在数值模拟中改变引起流场分布不均的结构

能够解决其所造成的脱硝装置磨损问题；模拟结果与实际磨损状况一致

说明本文所用数值模型能准确模拟脱硝装置速度分布。

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