秸秆锅炉驱动超超临界机组给水泵汽轮机经济性分析  

ECONOMIC ANALYSIS OF USING STRAW-BURNING BOILER FOR DRIVING SMALL TURBINE OF FEED-WATER PUMP FOR ULTRA-SUPERCRITICAL UNIT

作　　者：蒋安[1] 黄锦涛[2] 刘齐寿[2] 梁铁波[2] 

机构地区：[1]西北电力设计院,陕西西安710075 [2]西安交通大学能源与动力工程学院,陕西西安710049

出　　处：《热力发电》2011年第4期5-8,共4页Thermal Power Generation

摘　　要：以新建超超临界1 000 MW机组为例,探讨了采用燃烧秸秆的高压锅炉代替汽轮机抽汽驱动给水泵汽轮机的可行性,并给出燃烧秸秆锅炉蒸汽系统的基本流程。在对机组变工况计算的基础上,分析了采用秸秆锅炉后机组煤耗率的变化以及能够获得的经济效益和环保效益。Taking newly constructed ultra-supercritical 1 000 MW unit as example,an approach to the feasibility of adopting straw-burning high-pressure boiler for replacing extracted steam from the main turbine to drive the small turbine of feed-water pump has been made,the basic flow process of steam system for the straw-burning boiler being put forward.Based on the calculation of variable operating condition,the change of specific heat consumption and coal consumption rate of said unit,as well as the economic and environmental benefits may be obtained from said unit after adopting the straw-burning boiler have been analysed.

关 键 词：超超临界机组 秸秆锅炉 热耗率 煤耗率 经济性分析 

分 类 号：TK6[动力工程及工程热物理—生物能]