烟气脱二噁英过程中活性炭喷射工艺优化模拟

Simulation and Optimized Design of Activated Carbon Injection for Flue Gas Dioxin Control

利用FLUENT软件对烟道内喷吹活性炭进行数值模拟。从模型建立、网格划分、边界条件设置等方面详述求解过程,并对模拟结果进行后处理和分析。考察烟道中喷吹二噁英吸附剂活性炭时的浓度场的分布,考察喷吹位置、喷吹角度等的影响,做出数值模拟预测,初步提出合理的活性炭在烟道中的喷吹方案。结果表明Fluent软件可以很好地应用于该模拟,为活性炭喷嘴的设计提供参考。

Fluent software is used to conduct numerical simulation to spray activated carbon in the flue.The solution finding process is described from these aspects,such as the establishment of the model,classifying of the network,the set up of the critical conditions,and so on,the simulation results are analyzed.We study the distribution of the concentration of activated carbon,the arrangement of the nuzzles,predict the result of our simulation,and then propose the method by which to spray activated carbon preliminary.The results show that Fluent software can be used for this simulation,and offer references for the design and arrangement of the nuzzles.