| 喷淋塔式烟气冷凝余热回收与低氮排放协同处理系统实验研究 |
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| 引用本文： | 张群力,牛宇,孙东晗,肖鑫,沈祺,刘芳.喷淋塔式烟气冷凝余热回收与低氮排放协同处理系统实验研究[J].科学技术与工程,2021,21(6):2321-2327. |
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| 作者姓名： | 张群力 牛宇 孙东晗 肖鑫 沈祺 刘芳 |
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| 作者单位： | 北京建筑大学,供热、供燃气、通风及空调工程北京市重点实验室,北京100044;北京建筑大学,北京未来城市设计高精尖创新中心,北京100044;北京建筑大学,供热、供燃气、通风及空调工程北京市重点实验室,北京100044 |
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| 基金项目： | 北京市自然科学基金重点项目(SQKZ201510016001)，北京市属高校基本科研业务费专项资金(X18185)和北京建筑大学研究生创新项目(PG2019005)资助 |
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| 摘 要： | 为协同处理好燃气锅炉的烟气冷凝余热回收与低氮排放问题,提出喷淋塔式烟气冷凝余热回收与低氮排放协同处理技术方式,并搭建了该协同处理技术的实验台.该方式将烟气冷凝余热回收段和助燃空气加湿段进行集成设计.实验研究了热网回水温度、喷淋水流量、空气加湿段液气比和助燃空气含湿量等因素对系统性能的影响规律,发现助燃空气含湿量是影响烟气冷凝余热回收与低氮排放协同处理效果的关键影响因素.实验结果表明:当维持热网回水温度为45.0℃,喷淋水流量为0.83 m3/h工况时,该系统的烟气余热回收效率可达12.2％,热网余热利用效率为6.9％;排放烟气的氮氧化物浓度可降至50.0 mg/m3,氮氧化物减排效率为61.4％.该喷淋塔式烟气冷凝余热回收与低氮排放协同处理技术方式不仅可以高效回收烟气冷凝余热,还可以有效降低氮氧化物排放浓度,具有很大的节能、环保与经济效益和推广应用前景.
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| 关 键 词： | 燃气锅炉 烟气冷凝 余热回收 低氮排放 空气加湿 |
| 收稿时间： | 2019/10/21 0:00:00 |
| 修稿时间： | 2020/3/6 0:00:00 |
Experimental Study on Spray Tower Type Flue Gas Condensation Waste Heat Recovery Synergistic Low Nitrogen Emission System |
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| Zhang Qunli,Niu Yu,Sun Donghan,Xiao Xin,Shen Qi,Liu Fang.Experimental Study on Spray Tower Type Flue Gas Condensation Waste Heat Recovery Synergistic Low Nitrogen Emission System[J].Science Technology and Engineering,2021,21(6):2321-2327. |
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| Authors: | Zhang Qunli Niu Yu Sun Donghan Xiao Xin Shen Qi Liu Fang |
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| Institution: | 1.Beijing Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture 2.Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture,Beijing Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture,Beijing Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture,Beijing Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture,Beijing Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture,Beijing Key Lab of Heating, Gas Supply, Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture |
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