空气分级燃烧对再热汽温静态特性的影响

doi:10.11930/j.issn.1004-9649.2016.11.124.05

中国电力 ›› 2016, Vol. 49 ›› Issue (11): 124-128.DOI: 10.11930/j.issn.1004-9649.2016.11.124.05

空气分级燃烧对再热汽温静态特性的影响

黄香彬¹, 龙涛², 蒋宏利³, 魏铜生⁴

1. 神华国华清远发电有限责任公司,广东清远 513000;
2. 浙江国华浙能发电有限公司,浙江宁波 315612;
3. 南京南瑞集团公司节能环保分公司,江苏南京 210003;
4. 西安热工研究院有限公司,陕西西安 710032

收稿日期:2016-03-20 出版日期:2016-11-10 发布日期:2016-12-09
作者简介:黄香彬（1968—）,男,辽宁绥中人,高级工程师,从事锅炉运行专业的管理工作。E-mail: huangxiangbin@126.com

Study on Effects of Air-Staging Combustion on the Static Characteristics of Reheat Steam Temperature

HUANG Xiangbin¹, LONG Tao², JIANG Hongli³, WEI Tongsheng⁴

1. Shenhua Guohua Qingyuan Power Co., Ltd., Qingyuan 513000, China;
2. Zhejiang Guohua & Zheneng Power Co., Ltd.,Ningbo 315612, China;;
3. Energy-Saving and Environmental Protection Branch of NARI Group, Nanjing 210003, China;
4. Xi’an Thermal Power Research Institute, Xi’an 710032, China;

Received:2016-03-20 Online:2016-11-10 Published:2016-12-09

摘要/Abstract

摘要： 空气分级燃烧技术对炉膛燃烧和辐射换热过程有着明显影响,分析认为低负荷时再热汽欠温是由于主燃烧区烟温较高、辐射换热量较大引起的。理论分析和现场试验研究表明,优化锅炉运行氧量、炉膛-风箱差压设定值可以提高火焰中心高度,显著改善低负荷时再热汽欠温的状况,对指导空气分级燃烧的运行优化有一定的参考价值。

关键词: 空气分级燃烧, 炉膛出口烟温, 再热汽温, 运行氧量, 二次风配风

Abstract: The air-staging combustion has great impacts on furnace combustion and radiant heat exchanging processes. The analysis figures out that the reheat steam under temperature at low loads is attributed to high flue gas temperature and substantial radiant heat exchange volume in the main combustion zone. In addition, the theoretical analysis and the field tests indicate that the optimization of oxygen contents and furnace-windbox differential pressure may raise the reheat steam temperature, thus improving the performance of reheat steam under temperature at low loads. This paper may provide valuable reference for the operation optimization of boilers with air- staging combustion.

Key words: air-staging combustion, furnace exit gas temperature, reheat steam temperature, operation oxygen, secondary air distribution

中图分类号:

TM621.2

黄香彬, 龙涛, 蒋宏利, 魏铜生. 空气分级燃烧对再热汽温静态特性的影响[J]. 中国电力, 2016, 49(11): 124-128.

HUANG Xiangbin, LONG Tao, JIANG Hongli, WEI Tongsheng. Study on Effects of Air-Staging Combustion on the Static Characteristics of Reheat Steam Temperature[J]. Electric Power, 2016, 49(11): 124-128.

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参考文献

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空气分级燃烧对再热汽温静态特性的影响

Study on Effects of Air-Staging Combustion on the Static Characteristics of Reheat Steam Temperature

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