基于生物质锅炉改善氨分布均匀性的脱硝喷嘴开发  

Development of Denitrification Nozzles Based on Biomass Boilers to Improve Ammonia Distribution Uniformity

作　　者：姚文杰 叶燕仙[1] Yao Wenjie;Ye Yanxian(Zhejiang Agricultural Trade Vocational College,Shaoxing Zhejiang 312088)

机构地区：[1]浙江农业商贸职业学院,浙江绍兴312088

出　　处：《现代工业经济和信息化》2022年第2期79-80,102,共3页Modern Industrial Economy and Informationization

基　　金：大学生科技创新项目(新苗人才计划):基于生物质锅炉改善氨分布均匀性的还原剂喷枪开发。

摘　　要：喷嘴作为SCR系统中还原剂的源头,尿素喷嘴与氨气生成速率有很大关系,将直接影响SCR系统的脱硝率。设计了新型摇摆型空气雾化喷嘴,并对其雾化性能进行了试验及工程验证。验证结果表明,喷雾锥角可达15°~60°,平均粒径30μm,脱硝率达99%以上,产品整体性价比高,更适用于中小型锅炉。Nozzle as the source of reductant in SCR system, urea nozzle has a great relationship with ammonia generation rate, which will directly affect the denitrification rate of SCR system. A new swing type air atomization nozzle was designed and its atomization performance was tested and verified by engineering. The validation results show that the spray cone angle can reach 15°~60°, the average particle size is 30μm, the denitrification rate is more than 99%, and the overall product is cost-effective and more suitable for small and medium-sized boilers.

关 键 词：生物质锅炉 SCR 喷嘴 雾化 

分 类 号：X701[环境科学与工程—环境工程]