| NO_x浓度分布在线监测系统研发及应用 |
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| 引用本文： | 叶福南,姚顺春,陈耀荣,李峥辉,张向,沈跃良,卢志民.NO_x浓度分布在线监测系统研发及应用[J].广东电力,2019,32(7):29-36. |
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| 作者姓名： | 叶福南 姚顺春 陈耀荣 李峥辉 张向 沈跃良 卢志民 |
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| 作者单位： | 广东省粤电集团有限公司珠海发电厂,广东珠海,519000;华南理工大学电力学院,广东广州510640;广东省能源高效低污染转化与工程技术研究中心,广东广州510640;广东省计量科学研究院,广东广州,510405;广东电科院能源技术有限责任公司,广东广州,510080 |
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| 摘 要： | 选择性催化还原(selective catalytic reduction,SCR)烟气流场和NOx浓度分布不均匀,导致现有NOx在线监测系统单点测量结果代表性差和多点混合测量结果无法满足喷氨的分区调整控制,且难以为精准喷氨提供可靠的数据支持,极大制约SCR在线优化水平的提高,为此研发了烟气NOx浓度分布在线监测系统。首先依据喷氨区布置由多组网格化取样探头组成的取样分区,以巡回检测的方式实现SCR出口双侧烟道全截面的NO浓度分布在线监测;继而同步得到各测点截面NO与O2混合浓度值、截面浓度相对标准偏差、浓度分布云图及NO、O2、CO浓度测量值等信息;最后将该系统所测数据应用于SCR运行在线优化,而且结合喷氨调节阀的自动控制,进一步实现喷氨的动态分区智能控制,提升SCR运行在线优化水平,严格控制氨逃逸,降低空预器堵塞、引风机电耗增加甚至腐蚀等风险。该系统已在某电厂700MW机组上进行成功应用。
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| 关 键 词： | NOx 浓度分布 在线监测 巡回检测 SCR |
Development and Application of Online Monitoring System for NO_x Concentration Distribution |
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| YE Funan,YAO Shunchun,CHEN Yaorong,LI Zhenghui,ZHANG Xiang,SHEN Yueliang,LU Zhimin.Development and Application of Online Monitoring System for NO_x Concentration Distribution[J].Guangdong Electric Power,2019,32(7):29-36. |
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| Authors: | YE Funan YAO Shunchun CHEN Yaorong LI Zhenghui ZHANG Xiang SHEN Yueliang LU Zhimin |
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| Affiliation: | (Guangdong Yudean Group Co., Ltd. Zhuhai Power Plant, Zhuhai, Guangdong 519000, China;School of Electric Power, South China University of Technology, Guangzhou, Guangdong 510640,China;Guangdong Institute of Metrology, Guangzhou , Guangdong 510405 , China;Guangdong Diankeyuan Energy Technology Co., Ltd., Guangzhou, Guangdong, 510080,China;Guangdong Province Engineering Research Center of High Efficient and Low Pollution Energy Conversion, Guangzhou, Guangdong 510640, China) |
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| Abstract: | YE Funan;YAO Shunchun;CHEN Yaorong;LI Zhenghui;ZHANG Xiang;SHEN Yueliang;LU Zhimin(Guangdong Yudean Group Co., Ltd. Zhuhai Power Plant, Zhuhai, Guangdong 519000, China;School of Electric Power, South China University of Technology, Guangzhou, Guangdong 510640,China;Guangdong Institute of Metrology, Guangzhou , Guangdong 510405 , China;Guangdong Diankeyuan Energy Technology Co., Ltd., Guangzhou, Guangdong, 510080,China;Guangdong Province Engineering Research Center of High Efficient and Low Pollution Energy Conversion, Guangzhou, Guangdong 510640, China) |
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| Keywords: | NO x concentration distribution online monitoring cyclic detection SCR |
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