| 300 MW机组锅炉SCR装置流场研究 |
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| 引用本文： | 张波,张伟,牛国平.300 MW机组锅炉SCR装置流场研究[J].热力发电,2012,41(7):22-24,48. |
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| 作者姓名： | 张波 张伟 牛国平 |
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| 作者单位： | 1. 西安热工研究院有限公司,陕西西安,710032
2. 华润电力(兴宁)有限公司,广东兴宁,514548 |
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| 摘 要： | 通过数值模拟和模型试验的方法,对某电厂300 MW机组锅炉选择性催化还原(SCR)烟气脱硝装置内的流场分布进行了研究.通过调整烟道结构、安装导流叶片以及延长整流格栅前导流叶片长度等,改善了流场分布.改进后SCR装置内催化剂来流烟速分布均匀性及方向性、催化剂来流氨氮摩尔比、脱硝系统阻力、催化剂来流灰量分布均匀性等指标均满足技术要求.
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| 关 键 词： | 300 MW机组 锅炉 SCR 脱硝 流场 烟气 |
STUDY ON FLOW FIELD OF THE SCR EQUIPMENT FOR A 300 MW UNIT BOILER |
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| ZHANG Bo
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ZHANG Wei
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NIU Guoping.STUDY ON FLOW FIELD OF THE SCR EQUIPMENT FOR A 300 MW UNIT BOILER[J].Thermal Power Generation,2012,41(7):22-24,48. |
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| Authors: | ZHANG Bo ZHANG Wei NIU Guoping |
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| Affiliation: | 1.Xi’an Thermal Power Research Institute Co.,Ltd.,Xi’an 710032,Shaanxi Province,PRC 2.China Resources Power(Xingning) Co.Ltd.,Xingning 514548,Guangdong Province,PRC |
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| Abstract: | By numerical simulation and model test,the flow-field in SCR denitrogenation reactor was investigated.Measures taken such as adjusting the construction of gas duct,installing the guide blade,and extending the length of front guide blade of flow straightening grid can make a better flow distribution.After the improvement,indexes like the uniformity and directionality of the velocity distribution inside the SCR equipment,the ammonia and nitrogen molar ratio,the resistance of the SCR denitrification system,and the ash distribution uniformity and other indicators all meet technical requirements. |
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| Keywords: | 300 MW unit boiler SCR denitration flow field gas |
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