2023年第44卷第2期东北电力技术NOＲTHEASTELECTＲICPOWEＲTECHNOLOGY47发电技术660MW新建机组汽轮机碰磨振动分析及处理张杰(西安益通热工技术服务有限责任公司，陕西西安710000)摘要:某660MW新建机组汽轮机在首次启动过程中，由于多轴承振动爬升至超标水平，导致冲转过程进行了数次才定速3000r/min稳定运行。在后期带负荷过程中仍然出现了振动爬升的现象，振动爬升时频谱成分主要以1倍频分量为主且相位逐渐发生变化。为了使新建机组汽轮机能快速稳定投入生产，消除启动过程中的动静碰磨振动，经过对振动类型的分析判断，通过低速磨合、中速磨合、高速磨合、调整轴封温度、变真空、变负荷等参数调整，最终使汽轮机振动趋于平稳，并通过各项试验，实现满负荷连续运行。关键词:汽轮机;碰磨振动;磨合;轴封温度;变真空;变负荷［中图分类号］TK269［文献标志码］A［文章编号］1004－7913(2023)02－0047－05AnalysisandTreatmentofFrictionVibrationof660MWNewlyBuiltUnitSteamTurbineZHANGJie(Xi＇anYitongThermalTechnologyServiceCo．，Ltd．，Xi＇an，Shaanxi710000，China)Abstract:Inthefirststartupprocessofa660MWnewlybuiltsteamturbine，accordingtothevibrationofmultiplebearingsclimbingtothelevelexceedingthestandard，itleadstoseveraltimesinthepunchingprocessbeforethesteadyoperationat3000r/min．Thephenomenonofvibrationclimbingstillappearedinthelateloadingprocess，andthefrequencyspectrumcomponentofvibrationclimb-ingismainly1timefrequencycomponentandthephasegraduallychanged．Inordertomakethenewlybuiltunitsteamturbinefastandstableproduction，andeliminatethedynamicandstaticfrictionvibrationduringstartupinthestartprocess，bytheanalysisofthevibra-tiontypejudgment，throughtherunning-inatlowspeed，mediumspeedrunning-in，high-speedrunning-in，itadjuststheshaftsealingtemperature，changesvacuum，changestheloadadjustment，andsoon．Finally，thevibrationofthesteamturbinetendstobestable，andthroughvariousteststorealizecontinuousoperationatfullload．Keywords:steamturbine;frictionvibration;running-in;shaftsealtemperature;changevacuum;changeload现阶段高参数大容量的电厂汽轮机已被广泛应用，为了进一步提高机组效率节能降耗，新型汽轮机的动静间隙普遍设计得较小，尤其在叶顶汽...
