330 MW燃煤机组工业供热中增加背压式汽轮发电机组的改造  

Heating Retrofit of 330 MW Coal-fired Units by Adding a Back-pressure Turbo-Generator Set

作　　者：许啸 唐磊 周传文 杨锐 Xu Xiao;Tang Lei;Zhou Chuanwen;Yang Rui(China Energy Engineering Group Hunan Electric Power Design InstituteCo., Ltd., Changsha 410096, China)

机构地区：[1]中国能源建设集团湖南省电力设计院有限公司,长沙410096

出　　处：《发电设备》2020年第6期434-438,共5页Power Equipment

摘　　要：对某电厂2台330 MW亚临界燃煤发电机组进行供热改造,在其供热系统中增加背压式汽轮发电机组,并结合实际改造工程进行了分析。结果表明:改造后实现了供热蒸汽能量的梯级利用,同时降低了厂用电率,有效提高了电厂的经济效益,可供类似供热改造工程参考。For the power plant originally taking its high-temperature reheat steam as the outgoing heating source,a retrofit was carried out on the heating system of its two 330 MW subcritical coal-fired units by adding a back-pressure turbo-generator set,after which,an analysis was conducted.Results show that the technology helps to realize the step utilization of steam energy and reduce the power consumption of the units,thus improving the economic benefits of the power plant.This may serve as a reference for the retrofit of similar heating units.

关 键 词：背压式汽轮机 供热改造 能量梯级利用 

分 类 号：TK269.3[动力工程及工程热物理—动力机械及工程]