大型汽轮机凝汽器冷却面积增容问题研究  

Study on Compatibilization of Large Steam Turbine Condenser Cooling Area

作　　者：谷巍[1] 程东涛 居文平 GU Wei CHENG Dong-tao JU Wen-ping(Huaneng Weihai Power Generation Company Limited, Weihai 264205, China Xi＇an TPRI Energy Conservation Technology Company Limited, Xi＇an 710054, China)

机构地区：[1]华能威海发电有限责任公司,威海264205 [2]西安西热节能技术有限公司,西安710054

出　　处：《汽轮机技术》2017年第1期47-49,5,共4页Turbine Technology

基　　金：中国华能集团公司科学技术项目(HNKJ15-H09)

摘　　要：以某电站660MW汽轮机凝汽器增容改造工作为例,制定不同的凝汽器增容方案,分析计算各方案对汽轮机冷端系统总体性能的影响时,综合考虑凝汽器水阻变化对汽轮机冷端系统总体性能的影响,完善了凝汽器性能评价方法,为凝汽器增容改造工作提供了合理建议。凝汽器冷却面积变化对凝汽器总体传热性能影响的敏感度相对较低,形成的评价方法和评价结论,对大型汽轮机凝汽器改造工作和凝汽器选型工作提供了直接的指导建议。Taking a 600MW power plant steam turbine condenser for example, different condenser compatibilization program have formulated. When analyzing and calculating the impact of the condenser capacity expansion solutions on steam turbine cold-end system performance, considering the effect of condenser water resistance changes on total performance of the steam turbine cold-end system, improves condenser performance evaluation method and provides reasonable suggestions for condenser capacity expansion. The sensitivity of condenser cooling area changes to condenser heat transfer performance is relatively low, the formulated evaluation methods and evaluation conclusions provide direct guidance and advice for large steam turbine condenser modification and condenser type selection.

关 键 词：凝汽器 增容改造 冷却面积 评价方法 

分 类 号：TK264.1[动力工程及工程热物理—动力机械及工程]