燃气机组烟氨混合与脱硝精细化控制研究  

Research on Fine Control of Flue Gas&Ammonia Mixing and Denitrification in Gas Turbine Units

作　　者：邱振波 QIU Zhenbo(CHN Energy Guohua(Beijing)Gas Thermal Power Co.,Ltd.,Beijing,100024)

机构地区：[1]国能国华(北京)燃气热电有限公司,北京100024

出　　处：《能源科技》2025年第1期46-50,共5页Energy Science and Technology

摘　　要：为解决燃气机组余热锅炉烟气和氨气混合不充分问题,研制了基于涡旋发生及输送效应的烟氨混合装置,并研究了其对流场及氨氮摩尔比分布的影响。结果表明:设置混合器后,氨氮摩尔比分布的δ_(CV)值由14.68%降低至3.71%,实现了烟气和氨气充分混合。通过NO_(x)总量和分区控制,使得SCR出口NO_(x)排放的各项指标满足了环保要求。To realize insufficient mixing of flue gas and ammonia in the waste heat boiler of gas turbine unit,a flue gas&ammonia mixer based on the vortex generation and transport effect was developed.This pa⁃per conducts a research on its influence on flow field and ammonia-nitrogen molar ratio distribution.The re⁃sults show that after the mixer was installed,theδ_(CV) value of the ammonia-nitrogen molar ratio distribution was reduced from 14.68%to 3.71%,making it possible to fully mix the flue gas and ammonia.By control⁃ling the total NO_(x) emissions and zoning,all NO_(x) emission indicators at the SCR outlet meet environmental re⁃quirements.

关 键 词：燃气轮机 SCR脱硝 余热锅炉 烟氨混合装置 流场优化 分区控制 

分 类 号：TM621[电气工程—电力系统及自动化]