Design optimization of ammonia injection grid in SCR denitrification system

TANG Yuanqiang1; WU Guojiang2; ZHAO Liang3 1.Pan Asia Technical Automotive Center Co.

English Version Reader LoginJournal Login

您当前的位置：

首页 >

文章列表页 >

Design optimization of ammonia injection grid in SCR denitrification system

更新时间：2025-09-28

- Design optimization of ammonia injection grid in SCR denitrification system
- Thermal Power Generation Vol. 42, Issue 3, Pages: 58-62(2013)
- 作者机构：
  
  1. 泛亚汽车技术中心有限公司
  2. 上海交通大学机械与动力工程学院
  3. 沪东中华造船(集团)有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701
- Published：2013
- 稿件说明：
移动端阅览
TANG Yuanqiang1, WU Guojiang2, ZHAO Liang3 1.Pan Asia Technical Automotive Center Co.. Design optimization of ammonia injection grid in SCR denitrification system[J]. Thermal power generation, 2013, 42(3): 58-62.
DOI：

TANG Yuanqiang1, WU Guojiang2, ZHAO Liang3 1.Pan Asia Technical Automotive Center Co.. Design optimization of ammonia injection grid in SCR denitrification system[J]. Thermal power generation, 2013, 42(3): 58-62. DOI：

摘要

以某发电机组锅炉烟气脱硝系统SCR装置为研究对象

利用数值模拟的方法

研究SCR装置导流板优化布置后

喷孔直径和喷氨速度对催化层入口截面上氨气浓度分布的影响。研究表明

减小喷氨格栅喷孔直径

增加喷孔数量

有利于NH3与烟气均匀混合

综合考虑成本因素后该系统最优喷孔直径取30mm;随喷氨格栅Ⅰ、Ⅱ区喷氨速度差值的增大

NH3浓度偏差先减小后增加

该系统Ⅰ、Ⅱ区最优喷氨速度设为17.0、11.0m/s。

Abstract

Taking the SCR device in boiler gas denitrification system of a unit as the object

numerical simulation was adopted to investigate the influence of orifice diameter and ammonia injection speed on ammonia concentration distribution at cross section of catalyst layer entrance

on the basis of baffle arrangement optimization for SCR device.The ammonia injection grid(AIG) design was optimized to improve the uniformity of gas and ammonia concentration distribution.The results showed that

decrease in AIG orifice diameter and increase in orifice number did great help to the mixing of NH3 and gas;the best orifice diameter should be 30 mm.With an increase in ammonia injection speed deviation between region Ⅰ and Ⅱ

the NH3 concentration deviation first dropped and then rose;the optimal ammonia injection speed at region Ⅰ and Ⅱ should be 17.0 m/s and 11.0 m/s

respectively.

关键词

Keywords

references

Views

839

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

SELECTION OF FLUE GAS DENITRIFICATION TECHNOLOGY FOR BOILERS AND ECONOMIC EFFICIENCY THEREOF

STUDY ON BEHAVIOR OF CATALYCTS FOR SCR DENITRIFICATION USING DIFFERENT TiO₂ AS CARRIER

STRUCTURE DESIGN OF BAFFLE PLATES IN SCR DENITRIFICATION REACTOR

AUTOMATIC CONTROL SYSTEM OF SCR FLUE GAS DENITRIFICATION AND ITS APPLICATION IN SANHE POWER PLANT

RESEARCH ACHIEVEMENTS OF CATALYSTS FOR SCR DENITRIFICATION BY NH₃ AND HYDROCARBON

Related Author

ZHOU Yinggui1

WANG Shenggong2 1.College of Energy and Environment

ZHU Chong-bing

LI Feng

JIN Bao-sheng

CHENG Ling-xia South-east China University

XU Yan

LI Wen-yan North China Electric Power University

Related Institution

School of Energy and Environment, Southeast University

Nanjing Longyuan Environmental Protection Co., Ltd

Southeast University

Department of Power Engineering, North China Electric Power University

North China Electric Power Research Institute Xi'an Co., Ltd

AI问答

⁰