调节级根部弹性槽深度对转子热应力的影响 influence of elastic slot depth at the foot of governing stage upon thermal stress of the rotor.pdfVIP
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调节级根部弹性槽深度对转子热应力的影响 influence of elastic slot depth at the foot of governing stage upon thermal stress of the rotor
调罕级根部弹住擂深度 力貉孑德应力的彩响 白 云1,杨继明1,陈 荐1,黎 明 刘文会1 1.长沙理工大学能源与动力工程学院,湖南长沙410076 2.四川省节能监测中心,四川成都 610017 [摘 要] 利用ALGOR软件计算了600MW机组高压转子在调节级出口根部开设不同深度弹性 槽的转子应力场,分析了不同深度弹性槽对调节级根部转子热应力的影响。计算表明, 开设弹性槽有降低转子寿命损耗的作用,随着槽深的增加,调节级根部热应力总体呈下 降趋势,弹性热应力总体呈上升趋势。槽深150mm既可减少调节级根部热应力,又使 槽底热应力不至于过大,比较合理。 [关键词]600Mw汽轮机;转子;弹性槽;调节级;热应力;寿命损耗 [中图分类号]TK262 [文献标识码]A [文章编号]1002—3364(2010)03—0036—04 [Doi编号]10.3969/j.issn.1002—3364.2010.03.036 INFLUENCEoFELASTICSLoTDEPTHATTHEFoOToF THERoToR GOVERNINGSTAGEUPoNTHERMALSTRESSOF BAI Wen—huil Yunl,YANG Jianl,LI ji—min91,CHENMin92,LIU of andPower ofScienceand 410076,HunanProvince,PRC 1.CollegeEnergy Engineering,ChangshaUniversity Technology,Changsha 2.SichuanProvincial 610017。SichuanProvince,PRC Energy—savingMonitoringCentre,Chengdu ALGOR stressfieldofrotorwithdifferent ofelasticslot Abstract:Byusing software,the depths atthefootof outletofHProtorfor600MWunithasbeen opened governingstage’S different thethermalstressofrotoratthefootof theinfluenceofelasticslotwith depthsupon gover— showsthatthe elasticslothaseffectto life beinganalysed.Calculationopened
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