摘要
为研究回流对过饱和场的影响,以单通道烟气冷却系统为研究对象,分析回流比、回流抽取点、回流加入点对过饱和场的影响规律。结果表明:与无回流相比,有回流可以增加过饱和度;回流比对出口平均过饱和度的影响是最大的,随着回流比的增加,出口平均过饱和度也在增加;回流抽取点对出口平均过饱和度的影响次之,最佳回流抽取点与回流比有关;回流加入点对过饱和度分布的均匀性影响很大,对出口平均过饱和度的影响较小,回流加入点与第一根管子的距离越远,过饱和度分布越均匀。
To research the effect of circulation reflux on the supersaturation field, taking a single-channel flue gas cooling system as the research object, the effects of following three factors on the supersaturation field were analyzed, such as the reflux ratio, the reflux extraction point and the reflux injection point. Results show that compared with no reflux, the supersaturation can be increased by adopting circulation reflux. The reflux ratio has a great influence on the supersaturation, and the outlet average supersaturation increases with the increase of the reflux ratio. The reflux extraction point is the second factor in influencing the outlet average supersaturation, and the optimal reflux extraction point is related to the reflux ratio. The reflux injection point has a great influence on the uniformity of the supersaturation distribution, while which has a relatively small influence on the outlet average supersaturation. The farther the reflux injection point is away from the first tube, the more uniform the supersaturation distribution will be.
作者
叶晓辉
张军
闾荔
代安稳
尹杰
Ye Xiaohui;Zhang Jun;LüLi;Dai Anwen;Yin Jie(School of Energy and Environment,Southeast University,Nanjing 210096,China)
出处
《发电设备》
2022年第1期6-10,共5页
Power Equipment
基金
国家自然科学基金资助项目(51876038)。
关键词
水汽相变
过饱和度
回流
heterogeneous condensation
supersaturation
circulation reflux
