汽轮机凝汽器双背压改造的经济性探讨  

Economy Discuss of Double Back Pressure Retrofit for Turbine Condenser

作　　者：王兴平[1] 黄功文[1] 

机构地区：[1]上海发电设备成套设计研究院,上海200240

出　　处：《发电设备》2010年第4期241-243,共3页Power Equipment

摘　　要：针对汽轮机双背压式凝汽器理论上比单背压式凝汽器更有优越性的问题,对一台拟作双背压改造的600 MW汽轮机进行了详细的计算分析。结果表明,该汽轮机进行双背压改造在设计工况下不但达不到预期目的,反而会影响其运行经济性,对每一机组是否运用双背压凝汽器需预先进行性能计算确定。In view of question that the double back pressure condenser compared with single pressure condenser for turbine still has advantage in theory,the 600 MW turbine which will be double back pressure retrofitted is calculated and analyzed in detail.The result indicates not only the expectant purpose can not be achieved under design condition,but also the operation safety is affected.Whether the each unit uses a double back pressure condenser,it need be decided by the expectant property calculation.

关 键 词：汽轮机 凝汽器 双背压 经济性 

分 类 号：TK264.11[动力工程及工程热物理—动力机械及工程]