| 某660 MW超超临界机组脱硝催化剂不均匀磨损治理 |
| |
| 引用本文： | 王放放,李敏,许佩瑶.某660 MW超超临界机组脱硝催化剂不均匀磨损治理[J].中国电力,2016,49(7):162-167. |
| |
| 作者姓名： | 王放放 李敏 许佩瑶 |
| |
| 作者单位： | 1. 华北电力大学 环境科学与工程学院,河北 保定 071003;2. 国网河南省电力公司电力科学研究院,河南 郑州 450052 |
| |
| 摘 要： | 火电厂SCR脱硝催化剂不均匀磨损会降低催化剂的整体使用寿命。以某660 MW机组超超临界锅炉SCR装置为研究对象,利用数值模拟和现场测试方法,找出了催化剂不均匀磨损的原因;运用数值模拟方法对不同改造方案进行模拟计算,优选出SCR脱硝装置入口断面流场、颗粒浓度场分布均匀的改造方案并加以实施。改造后的测试结果表明,脱硝装置入口烟气流速和飞灰浓度均匀性得到提高,因而可使催化剂的不均匀磨损问题基本得到解决。
|
| 关 键 词： | 燃煤电厂 超超临界机组 烟气脱硝 催化剂磨损 数值模拟 粉煤灰成分 优化设计 |
| 收稿时间： | 2015-12-29 |
The Denitrification Catalyst Abrasion Treatment of a 660-MW Ultra Supercritical Unit |
| |
| WANG Fangfang,LI Min,XU Peiyao.The Denitrification Catalyst Abrasion Treatment of a 660-MW Ultra Supercritical Unit[J].Electric Power,2016,49(7):162-167. |
| |
| Authors: | WANG Fangfang LI Min XU Peiyao |
| |
| Affiliation: | 1. North China Electric Power University, Baoding 071003, China;2. Henan Electric Power Research Institute, Zhengzhou 450052, China |
| |
| Abstract: | The uneven wear of SCR catalyst may shorten the overall service life of the catalyst in thermal power plants. Taking the example of the SCR device of a 660-MW ultra supercritical unit in a power plant, the causes of uneven catalyst wear are figured out by means of numerical simulation and field tests. The numerical simulation method is also adopted to perform simulation calculation for different retrofit plans such that the optimal solution with even SCR device inlet sectional flow field and particle concentration distribution can be selected and then implemented. The testing result after retrofit shows that the evenness of both the inlet flue gas flow rate and the fly ash concentration are improved, which basically solves the problem of uneven catalyst abrasion. |
| |
| Keywords: | coal-fired power plant ultra supercritical unit flue gas denitrification abrasion of catalyst numerical simulation elements of coal optimization design |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国电力》浏览原始摘要信息 |
|
点击此处可从《中国电力》下载全文 |
