烟气脱硫脱硝流化床反应器中喷枪设计的模拟与优化

为优化循环流化床半干法脱硫脱硝反应器喷枪布置形式，以某火电厂的循环流化床同时脱硫脱硝反应塔为研究对象，对其高压水喷枪布置形式进行模拟研究。通过模拟和实际运行相结合的研究方式，得到了更合理的喷枪布置形式:喷枪数量选择4只且呈环形布置；喷枪头伸入距离为0.5~0.7 m，同时保证喷雾最大液滴粒径<150 μm，以此保证液滴在反应器内的均匀分布及液滴的完全蒸发，实现循环流化床半干法反应器的平稳运行及高效脱硫脱硝。

SIMULATION AND OPTIMIZATION OF SPRAY GUN DESIGN IN FLUE GAS DESULFURIZATION AND DENITRIFICATION FLUIDIZED BED REACTOR

In order to optimize the reasonable spray gun layout of circulating fluidized bed semi-dry desulfurization and denitrification reactor, the circulating fluidized bed simultaneous desulfurization and denitrification tower of a thermal power plant was taken as the original object in this paper, and the high pressure water spray gun layout in the reactor was simulated. Through simulation and comparison of results, a more suitable spray gun layout was obtained. The optimum setting of spray guns was 4 with circular arrangement. The advisable distance of the spray gun inserted into the tower was 0.5~0.7 m. The maximum droplet size of the spray was less than 150 μm, which was conducive to the uniform distribution within the reactor and the complete evaporation of the droplet, achieving smooth and stable running of circulating fluidized bed semi-dry reactor,as well as high efficiency desulfurization and denitrification.