SCR脱硝反应器内流动的物理模拟实验研究

Experimental Investigation of Air Flow in a Scaled-down SCR-Denitrogenation Reactor

针对某电厂600 MW超临界压力燃煤锅炉机组初步设计阶段拟定的锅炉尾部烟道及脱硝反应器的结构与总体布置,建立了SCR脱硝反应器内流动的物理模拟实验台,对脱硝反应器内催化剂前烟气流场与还原剂浓度在流动截面上的分布进行了实验研究。实验结果表明,优化和调整脱硝反应器内导流装置的结构布置可保证反应器内气体速度标准偏差小于14%,还原剂浓度标准偏差小于10%,符合工业要求。

Based on the structure and arrangement of the boiler flue tail and denitrification reactor of the initial design phase in a Power Plant Phase Ⅱ 600MW supercritical pressure units, the denitration physics experiment platform was set up and the flow cross-section uniformity of flue gas flow field in the catalyst layer of front-end was researched. The result showed that optimizing the arrangement of diversion device and adjusting the resistance of catalyst layer can the reactor gas velocity within the standard deviation of less than 14%, reducing agent concentration of the standard deviation of less than 10%. It meets industry requirements.