进口亚临界W火焰炉供热再加热系统研究  

Research on reheating system for heating of imported subcritical W-flame boiler

作　　者：张苗 黄继忠 谭锐 曾令午 杨学权 殷戈 ZHANG Miao;HUANG Ji-zhong;TAN Rui;ZENG Ling-wu;YANG Xue-quan;YIN Ge

机构地区：[1]国能九江发电有限公司,江西九江332000 [2]国电南京电力试验研究有限公司,江苏南京210041 [3]清洁燃烧与烟气净化四川省重点实验室,四川成都611731 [4]东方电气集团东方锅炉股份有限公司,四川自贡643001

出　　处：《节能》2020年第12期63-66,共4页Energy Conservation

摘　　要：基于国能九江电厂350 MW亚临界机组,针对从汽机侧抽汽改造无法同时满足用汽温度和压力需求的问题,提出了一种独立的新型抽汽再热改造系统。通过分析机组的热平衡参数和再加热器布置方案,对再加热系统的运行稳定性进行了优化。供热改造后,电厂在保证系统运行稳定性前提下降低了煤耗,提高了经济效益,为其他同类型机组的供热改造方案提供了参考。Based on the 350 MW subcritical unit of Guodian Jiujiang Power Plant, this paper proposes an independent new type of steam extraction and reheating retrofit system for the problem that the steam extraction retrofit from the turbine side cannot meet the steam temperature and pressure requirements at the same time. By analyzing the heat balance parameters of the unit and the reheater layout plan, the operational stability of the reheating system was optimized. After the heating reformation, the coal consumption was reduced under the premise of ensuring the stability of the system, and the economy of the power plant was greatly improved, which provided reference experience for other heating reformation schemes of the same type of units.

关 键 词：再加热 供热改造 灵活性 优化设计 350 MW热力机组 

分 类 号：TK1[动力工程及工程热物理—热能工程]