摘要
利用FLUENT软件对SHG-Ⅱ-Z型除尘脱硫装置内的脱硫过程作数值模拟,选择RNG k-ε湍流模型及体积反应模型作为计算模型,采用SIMPLEC算法,计算出设备内的速度场、压力场及湍流强度的分布和不同截面SO_2的质量分数分布。结果表明文丘里喉部对提高脱硫效率起到了关键作用,SO_2的高浓区位于壁面附近的局部区域；用Mg(OH)_2作为吸收剂,其脱硫效率明显高于H_2O。通过对脱硫过程的初步模拟,为研究脱硫机理、改进设备奠定了一定的理论基础。
RNG κ-ε turbulence model and volumetric reaction model were used to simulate the desulphurization in the SHG-Ⅱ-Z scrubber using FLUENT package, SIMPLEC algorithm was used in the simulation. The distributions of the velocity, pressure, turbulence intensity and the mass fraction of SO2 in the different sections were calculated. The results showed that the venturi laryngeal is important to improve the desulphurization efficiency, the higher concentrations of SO2 locate in the area close to the wall. When H2O and Mg（OH）2 were selected as the absorbents of SO2, the desulphurization efficiency of Mg（OH）2 is higher than that of H2O.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2006年第7期591-596,共6页
Computers and Applied Chemistry
关键词
脱硫
湍流模型
体积反应
SIMPLEC算法
desulphurization, turbulence model, volumetric reaction, SIMPLEC algorithm
