高压加热器疏水端差偏大原因分析及应对策略

第31卷第1期2010年3月电站辅机PowerStationAuxiliaryEquipmentVol.31No.1Mar.2010:16720210(2010)01000503王继伟,刘瑞梅(哈尔滨锅炉厂有限责任公司,黑龙江哈尔滨150046):高压加热器是汽轮机发电机组回热系统中的重要辅机设备,运行高压加热器可提高锅炉给水温度,降低机组能耗结合高压加热器的性能设计结构布置制造工艺运行和检修过程,分析了高压加热器疏水端差偏大的危害和原因,并提出详尽的应对策略,对高压加热器的设计制造及电厂运行具有借鉴意义:机组;高压;加热器;疏水;端差;偏大;原因;对策:TK264.9:AAnalysisontheLargerDrainSubcoolerApproachofHighPressureHeateranditsCountermeasureWANGJiwei,LIURuimei(HarbinBoilerPlantCo.,Ltd,Harbin,Helongjiang,150046,China)Abstract:Highpressurefeedwaterheateriskeyauxiliaryequipmentinanextractionsteamsystemofsteamturbinegenerationunit,whichcanraisethetemperatureoffeedwatertoboilerandreducetheenergyloss.Theharmfulnessandcauseoflargedrainsubcoolerapproachhavebeenanalyzedanddetailedcountermeasureshavebeenputforwardinthearticlecombinedwiththeperformancedesign,structurearrangement,fabricationprocedure,operationandmaintenance,whichisusefultothedesign,fabricationandoperationofHPheaters.Keywords:powerunit;highpressure;heater;drain;subcoolerapproach;larger;cause;countermeasure:20100104:20100309:(1983),,,,,1,(),,,,1,(),300MW~1000MW1,5.6,,25电站辅机总第112期(2010No.1)1.给水入口;2.水室;3.分程隔板;4.水室包壳;5.给水出口;6.蒸汽入口;7.过热段包壳;8.壳体;9.隔板;10.上级疏水入口;11.换热管;12.疏水吸入口;13.疏水段包壳;14.疏水出口;15.管板22,,,,,,,,,,,;,,,,33.1,,,,:,,;,,,,3.2,,,,3.3,,:(1);,:;,(2),(3),,,;,,!,,,,,,,,(4),44.1,,,,(),,4.2,6高压加热器疏水端差偏大原因分析及应对策略电站辅机总第112期(2010No.1),4.3,::,,∀∀∀(1):,,,,,,,,(2):,,,(3):,,,,,,,20~30mm,15min,,,,,4.4,(1),(2),,,(3),,,,,,(4),,4.5,,,,,,5,,,:[1].[M].:.1995.[2]HEI[S].[3].[M].:.2004.欢迎投稿欢迎订阅7