| 热电联产机组锅炉深度空气分级技术应用 |
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| 引用本文： | 蔡金辉.热电联产机组锅炉深度空气分级技术应用[J].热力发电,2011,40(9). |
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| 作者姓名： | 蔡金辉 |
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| 作者单位： | 上海申能星火热电有限责任公司,上海,201419 |
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| 摘 要： | 针对热电联产机组75 t/h燃煤锅炉氮氧化物排放浓度较高的问题,对其燃烧系统进行了WR浓淡燃烧器和深度空气分级即多层轴向空气分级和径向空气分级组合的技术改造,将燃烧二次风分为70%~85%和15%~30%的两部分分别送入炉膛,使炉内煤粉燃烧分为热解区、富氧区和贫氧区,以减少NOx的排放。结果表明,改造后锅炉NOx排放浓度降低了40%以上,而飞灰含碳量和炉渣含碳量无明显变化。
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| 关 键 词： | 燃煤 锅炉 浓淡燃烧 空气分级 煤粉 燃烧器 |
STUDY ON APPLICATION OF DEEPLY AIR-STAGGING TECHNOLOGY IN BOILER USED FOR COGENERATION |
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| CAI Jinhui.STUDY ON APPLICATION OF DEEPLY AIR-STAGGING TECHNOLOGY IN BOILER USED FOR COGENERATION[J].Thermal Power Generation,2011,40(9). |
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| Authors: | CAI Jinhui |
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| Affiliation: | CAI Jinhui Shanghai Shenneng Xinghuo Thermal Power Co Ltd,Shanghai 201419,PRC |
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| Abstract: | Directing against the problem of high NOx emission from 75 t/h coal-fired boiler used for cogeneration,its combustion system has been retrofitted by using WR dense and dilute pulverized coal burners and deeply air-stagging technology,i.e.combination of multi-layer axial air-stagging and radial air-stagging,the secondary air for burning is divided into two parts,namely 70%~85% and 10%~30%,and being sent into furnace,making the combustion in furnace to be partitioned into heat-releasing zone,oxygen-enriched z... |
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| Keywords: | fuel coal boiler dense and dilute combustion air-stagging pulverized coal burner |
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