660 MW机组超临界锅炉灵活性调峰技术试验研究  

Experimental Study on the Technology of Enhancing the Flexibility of a 660 MW Supercritical Boiler

作　　者：洪军 刘志刚 周科[2] 张勇 殷典 孙佳东 HONG Jun;LIU Zhigang;ZHOU Ke;ZHANG Yong;YIN Dian;SUN Jiadong(Anhui Ma’anshan Power Generation Co., Ltd., Ma’anshan 243021, China;Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710054, China,)

机构地区：[1]皖能马鞍山发电有限公司,安徽马鞍山243021 [2]西安热工研究院有限公司,陕西西安710054

出　　处：《锅炉技术》2021年第2期55-59,共5页Boiler Technology

基　　金：国家重点研发计划项目(2017YFB0902100)。

摘　　要：针对某660 MW超临界锅炉开展灵活性调峰试验研究工作,通过燃烧动力场和制粉系统优化调整的分析,改善了锅炉低负荷稳燃能力,结合优化低负荷制粉系统投运方式、分级燃尽风的控制等措施可保证锅炉调峰运行至30%额定负荷,优化调整工作还起到了提升锅炉效率和NO_(x)控制性能的效果。试验结果也表明:再热器烟道旁路分配部分高温烟气调节SCR装置入口烟温的方式,可以实现40%~30%负荷下脱硝系统的正常运行。Experimental study on flexible peak shaving of a 660 MW supercritical boiler shows that optimization of the combustion dynamics and pulverizing system can improve the combustion stability of the boiler under low load.Optimization of the operation mode of coal pulverizing system and staged over fire air can make the boiler reach 30%BMCR load ability and improve boiler efficiency and NO_(x)control performance.The experimental results show that the regulating temperature method of the SCR inlet flue gas by high temperature flue gas from the bypass of the reheater is able to achieve the flexible peak load operation under 40%~30%BMCR load of the boiler.

关 键 词：超临界锅炉 灵活性 试验 烟道旁路 

分 类 号：TK223.26[动力工程及工程热物理—动力机械及工程]