|
|||||
|
|
| 不同喷枪在CFB锅炉SNCR工程中的应用 | |
| 引用本文： | 张仲飞, 陈李荔, 王岳军, 刘学炎, 吴忠标. 不同喷枪在CFB锅炉SNCR工程中的应用[J]. 环境工程学报, 2015, 9(10): 4977-4981. doi: 10.12030/j.cjee.20151057 |
| 作者姓名： | 张仲飞 陈李荔 王岳军 刘学炎 吴忠标 |
| 作者单位： | 1. 浙江大学环境与资源学院, 杭州 310027; 2. 浙江天蓝环保技术股份有限公司, 杭州 311202; 3. 浙江省 天正设计工程有限公司, 杭州 310012; 4. 浙江省工业锅炉炉窑烟气污染控制技术工程技术研究中心, 杭州 311202 |
| 基金项目： | 浙江省重点科技创新团队计划(2013TD07) |
| 摘 要： | 针对不同喷枪在循环流化床锅炉(CFB)选择性非催化还原(SNCR)脱硝系统中的工程应用展开研究。利用CFD模拟,分析不同雾化粒径对还原剂穿透距离及覆盖面积的影响。计算表明,较大的雾化粒径有利于还原剂的混合。75 t/h CFB锅炉工程实验结果显示,雾化粒径D50=102 μm的喷枪比雾化粒径D50=59 μm的喷枪可提高脱硝效率8%~10%,同时可降低氨氮比(NSR)13%,与计算结果一致。 |
| 关 键 词： | 循环流化床锅炉 SNCR CFD 粒径 |
| 收稿时间： | 2014-08-21 |
Study on different ejection lances of SNCR in CFB boiler |
|
| Zhang Zhongfei, Chen Lili, Wang Yuejun, Liu Xueyan, Wu Zhongbiao. Study on different ejection lances of SNCR in CFB boiler[J]. Chinese Journal of Environmental Engineering, 2015, 9(10): 4977-4981. doi: 10.12030/j.cjee.20151057 | |
| Authors: | Zhang Zhongfei Chen Lili Wang Yuejun Liu Xueyan Wu Zhongbiao |
| Affiliation: | 1. College of Environmental & Resource Sciences of Zhejiang University, Hangzhou 310027, China; 2. Zhejiang Tianlan Environmental Protection Co., Ltd, Hangzhou 311202, China; 3. Zhejiang TITAN Design & Engineering Co., Ltd, Hangzhou 310012, China; 4. Zhejiang Provincial Engineering Research Center of Industrial Boiler & Furnace Flue Gas Pollution Control, Hangzhou 311202, China |
| Abstract: | The performances of different types of spray lances used in the CFB boiler for the selective non-catalytic reduction (SNCR) of NO with NH3 were investigated in this study. Using CFD simulations, the influences of atomized particle sizes on the reductant's spray distance and coverage area were analyzed. It was found that larger atomized particle sizes were beneficial to the mixing of reductant. Furthermore, the industrial tests of SNCR reaction in a 75 t/h CFB boiler were carried out. And by comparing the performances of spray lances with atomizing particle sizes of D50=102 μm and D50=59 μm, it was shown that the former had 8%-10% higher removal efficiency and around 13% lower reductant consumption, which were in accordance with the simulation result. |
| Keywords: | CFB SNCR CFD particle sizes |
| 本文献已被 万方数据 等数据库收录！ | |
| 点击此处可从《环境工程学报》浏览原始摘要信息 | |
| 点击此处可从《环境工程学报》下载全文 | |