电力科技与环保2024，Vol.40Issue(4)：407-415,9.DOI:10.19944/j.eptep.1674-8069.2024.04.009
超临界对冲燃烧锅炉低负荷运行及环保性能的模拟研究
Simulation research on low load operation and environment performance of supercritical opposite combustion boiler
摘要
Abstract
Based on the design parameters and field test data of a supercritical opposed combustion boiler in a power plant,this paper uses ANSYS Fluent software to conduct numerical simulation research on the low-load operating state. According to the actual situation of the field test,the boundary conditions such as the operation mode of the burner,wind speed and air volume are controlled,and the simulation results directly reflect the combustion state in the furnace. After verifying the accuracy of the model,the calculation results of the 25％ and 30％ load conditions are further compared. The results show that the temperature field and velocity field are uniform and symmetrical under the 25％ load condition,and the overall stable combustion performance is better than that of the 30％ load condition. condition. In the 30％ load condition,due to the more middle-level burners in the rear wall,the hedging performance is poor,which not only easily causes the overheating of the front wall water wall,but also produces more NOx accumulation in the front wall,and the outlet NOx emission in the 30％ load condition The amount is about 1.35 times of the 25％ load condition.关键词
超临界锅炉/数值模拟/低负荷运行/深度调峰/NOx排放Key words
supercritical boiler/numerical simulation/low load operation/deep peak regulation/NOx emission分类
能源科技引用本文复制引用
屠博,阚伟民,余冯坚,李德波,廖伟辉,吕兴城,金凤雏,闫超,尹秋钰,陈兆立,阙正斌..超临界对冲燃烧锅炉低负荷运行及环保性能的模拟研究[J].电力科技与环保,2024,40(4):407-415,9.基金项目
国家自然科学基金项目(51376171) （51376171）
中国南方电网有限责任公司科技项目(NYJS2020KJ005) （NYJS2020KJ005）
