Article(id=1236345816957382897, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1236345813933289655, articleNumber=null, orderNo=null, doi=10.19666/j.rlfd.202403060, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1709308800000, receivedDateStr=2024-03-02, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1772697412956, onlineDateStr=2026-03-05, pubDate=1729785600000, pubDateStr=2024-10-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1772697412956, onlineIssueDateStr=2026-03-05, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1772697412956, creator=13701087609, updateTime=1772697412956, updator=13701087609, issue=Issue{id=1236345813933289655, tenantId=1146029695717560320, journalId=1210938733613449225, year='2024', volume='53', issue='10', pageStart='1', pageEnd='162', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1772697412236, creator=13701087609, updateTime=1772697498476, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1236346175725556508, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1236345813933289655, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1236346175725556509, tenantId=1146029695717560320, journalId=1210938733613449225, issueId=1236345813933289655, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=106, endPage=113, ext={EN=ArticleExt(id=1236345817246789890, articleId=1236345816957382897, tenantId=1146029695717560320, journalId=1210938733613449225, language=EN, title=Research on creep/fatigue life of high pressure rotor in steam turbine for new power systems, columnId=1211002405299294959, journalTitle=Thermal Power Generation, columnName=Thermal energy science research, runingTitle=null, highlight=null, articleAbstract=
Under deep peak shaving and variable operating conditions of thermal power units, significant changes in steam temperature have caused a significant increase in thermal stress in some structures of the units, which accelerated structural damage, and resulted in frequent safety accidents. To solve these problems, by taking the regulating stage rotor of a 300 MW steam turbine as the object, and Ansys software is used to analyze the thermal stress, aerodynamic force, and centrifugal force of the blades. Firstly, structural optimization is carried out on root of the blade to significantly eliminate the unreasonable local stress concentration phenomenon commonly found in conventional calculations. Then, the distribution laws of temperature and stress fields in the regulating stage under different conditions such as steady-state and transient during the deep peak shaving process of thermal power units are revealed. Moreover, the effects of the temperature and stress fields on safety performance of the unit are also investigated. The results indicate that, the maximum equivalent stress increases by about 24% under steady-state conditions with temperature difference of different nozzle groups of 50 ℃. The transient load increase rate of 5% THA/min is about three times higher than that of 2% THA/min, causing low cycle fatigue damage to the rotor. Compared with steady-state operating conditions, increasing the load once a day at a rate of 2% THA/min from half load to full load increases the overall damage by about 38%.
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针对火电机组深度调峰变工况过程中蒸汽温度大幅变化,引起机组部分结构热应力大幅增加,结构加速损坏,安全事故频发的问题,以300 MW汽轮机调节级转子为对象,利用Ansys软件对叶片热应力、气动力和离心力进行分析。首先对叶根部位开展结构优化,大幅消除常规计算普遍存在的不合理局部应力集中现象;然后研究揭示了火电机组深度调峰过程稳态和瞬态等不同情况下调节级温度场、应力场的分布规律及其对机组安全性能的影响特性。研究结果表明:稳态工况不同喷嘴组温差50 ℃时,最大等效应力升高约24%;瞬态工况升负荷速率5%THA/min比2%THA/min引起转子低周疲劳损伤提升约3倍;相较于稳态工况,每天增加一次速率2%THA/min从半负荷到满负荷的升负荷过程,综合损伤提升38%左右。
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, authorsList=陈思远, 黄畅, 王卫良, 吕俊复, 柯希玮, 刘志东, 马庆中)}, authors=[Author(id=1236345820983915024, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=chensy@stu2021.jnu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1236345821113938457, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345820983915024, language=EN, stringName=Siyuan CHEN, firstName=Siyuan, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.MOE Key Lab of Disaster and Control in Engineering, International Energy School (Energy and Electricity Research Center), Jinan University, Zhuhai 519070, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1236345821202018849, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345820983915024, language=CN, stringName=陈思远, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.暨南大学重大工程灾害与控制教育部重点实验室国际能源学院(能源电力研究中心),广东 珠海 519070, bio={"content":"
陈思远(1997),男,硕士研究生,主要研究方向为深度调峰下汽轮机运行安全性的数值模拟,chensy@stu2021.jnu.edu.cn。
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陈思远(1997),男,硕士研究生,主要研究方向为深度调峰下汽轮机运行安全性的数值模拟,chensy@stu2021.jnu.edu.cn。
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1.MOE Key Lab of Disaster and Control in Engineering, International Energy School (Energy and Electricity Research Center), Jinan University, Zhuhai 519070, China), AuthorCompanyExt(id=1236345820497375720, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820480598500, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.暨南大学重大工程灾害与控制教育部重点实验室国际能源学院(能源电力研究中心),广东 珠海 519070)])]), Author(id=1236345821311070760, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1236345821390762545, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345821311070760, language=EN, stringName=Chang HUANG, firstName=Chang, middleName=null, lastName=HUANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.MOE Key Lab of Disaster and Control in Engineering, International Energy School (Energy and Electricity Research Center), Jinan University, Zhuhai 519070, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1236345821483037241, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345821311070760, language=CN, stringName=黄畅, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.暨南大学重大工程灾害与控制教育部重点实验室国际能源学院(能源电力研究中心),广东 珠海 519070, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1236345820480598500, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, xref=1., ext=[AuthorCompanyExt(id=1236345820488987109, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820480598500, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.MOE Key Lab of Disaster and Control in Engineering, International Energy School (Energy and Electricity Research Center), Jinan University, Zhuhai 519070, China), AuthorCompanyExt(id=1236345820497375720, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820480598500, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.暨南大学重大工程灾害与控制教育部重点实验室国际能源学院(能源电力研究中心),广东 珠海 519070)])]), Author(id=1236345821604672062, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=wangwl@jnu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1236345821713723973, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345821604672062, language=EN, stringName=Weiliang WANG, firstName=Weiliang, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.MOE Key Lab of Disaster and Control in Engineering, International Energy School (Energy and Electricity Research Center), Jinan University, Zhuhai 519070, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1236345821814387279, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345821604672062, language=CN, stringName=王卫良, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, address=
1.暨南大学重大工程灾害与控制教育部重点实验室国际能源学院(能源电力研究中心),广东 珠海 519070, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1236345820480598500, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, xref=1., ext=[AuthorCompanyExt(id=1236345820488987109, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820480598500, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.MOE Key Lab of Disaster and Control in Engineering, International Energy School (Energy and Electricity Research Center), Jinan University, Zhuhai 519070, China), AuthorCompanyExt(id=1236345820497375720, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820480598500, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.暨南大学重大工程灾害与控制教育部重点实验室国际能源学院(能源电力研究中心),广东 珠海 519070)])]), Author(id=1236345821885690457, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1236345822003130979, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345821885690457, language=EN, stringName=Junfu LYU, firstName=Junfu, middleName=null, lastName=LYU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
3.Shanxi Research Institute of Huairou Laboratory, Taiyuan 030006, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1236345822103794281, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345821885690457, language=CN, stringName=吕俊复, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.清华大学能源与动力工程系,北京 100084
3.怀柔实验室山西研究院,山西 太原 030006, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1236345820581261808, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, xref=2., ext=[AuthorCompanyExt(id=1236345820593844720, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820581261808, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.清华大学能源与动力工程系,北京 100084)]), AuthorCompany(id=1236345820698702328, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, xref=3., ext=[AuthorCompanyExt(id=1236345820702896633, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820698702328, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Shanxi Research Institute of Huairou Laboratory, Taiyuan 030006, China), AuthorCompanyExt(id=1236345820711285241, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820698702328, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.怀柔实验室山西研究院,山西 太原 030006)])]), Author(id=1236345822351258228, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1236345822544196227, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345822351258228, language=EN, stringName=Xiwei KE, firstName=Xiwei, middleName=null, lastName=KE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, China
3.Shanxi Research Institute of Huairou Laboratory, Taiyuan 030006, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1236345822653248140, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345822351258228, language=CN, stringName=柯希玮, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
2, 3, address=
2.清华大学能源与动力工程系,北京 100084
3.怀柔实验室山西研究院,山西 太原 030006, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1236345820581261808, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, xref=2., ext=[AuthorCompanyExt(id=1236345820593844720, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820581261808, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.清华大学能源与动力工程系,北京 100084)]), AuthorCompany(id=1236345820698702328, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, xref=3., ext=[AuthorCompanyExt(id=1236345820702896633, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820698702328, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Shanxi Research Institute of Huairou Laboratory, Taiyuan 030006, China), AuthorCompanyExt(id=1236345820711285241, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, companyId=1236345820698702328, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.怀柔实验室山西研究院,山西 太原 030006)])]), Author(id=1236345822749717140, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1236345822854574743, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345822749717140, language=EN, stringName=Zhidong LIU, firstName=Zhidong, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
4.Guangdong Zhuhai Jinwan Power Generation Co., Ltd., Zhuhai 519050, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1236345822955238047, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, authorId=1236345822749717140, language=CN, stringName=刘志东, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
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Geometric models of single channel and full cycle channel, figureFileSmall=A+VlDidRAKRJ6tlmI8wuWg==, figureFileBig=/U3B6jfjK7/Jiso9gr7Yfg==, tableContent=null), ArticleFig(id=1236345824767177492, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图1, caption=
单流道与全周流道几何模型, figureFileSmall=A+VlDidRAKRJ6tlmI8wuWg==, figureFileBig=/U3B6jfjK7/Jiso9gr7Yfg==, tableContent=null), ArticleFig(id=1236345824997864226, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.2, caption=
Inlet mass flow rate and outlet mass flow rate, figureFileSmall=QiIiR/T6httaY+hu9qe5Mw==, figureFileBig=2inVN4plvNSkN5zIv/IwEA==, tableContent=null), ArticleFig(id=1236345825102721830, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图2, caption=
入口质量流量与出口质量流量, figureFileSmall=QiIiR/T6httaY+hu9qe5Mw==, figureFileBig=2inVN4plvNSkN5zIv/IwEA==, tableContent=null), ArticleFig(id=1236345825220162347, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.3, caption=
Temperature load and aerodynamic load on surface of the rotor with single channel under THA condition, figureFileSmall=jZH1Fure0vBIKGc/lVPrHQ==, figureFileBig=hBiEywMDsh0l8onRN6J84A==, tableContent=null), ArticleFig(id=1236345825341797168, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图3, caption=
THA工况下单流道转子表面温度载荷和气动载荷, figureFileSmall=jZH1Fure0vBIKGc/lVPrHQ==, figureFileBig=hBiEywMDsh0l8onRN6J84A==, tableContent=null), ArticleFig(id=1236345825434071860, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.4, caption=
Temperature load and aerodynamic load on surface of the rotor with full flow channel under THA condition, figureFileSmall=EyTIYNknu1VVpV34HDM2pg==, figureFileBig=a9hR+OxzjQSi16ezupi0dA==, tableContent=null), ArticleFig(id=1236345825530540859, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图4, caption=
THA工况下全周流道转子表面温度载荷和气动载荷, figureFileSmall=EyTIYNknu1VVpV34HDM2pg==, figureFileBig=a9hR+OxzjQSi16ezupi0dA==, tableContent=null), ArticleFig(id=1236345825618621247, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.5, caption=
Cloud diagram of rotor equivalent force under 50%THA working condition, figureFileSmall=iuWNQPWiNSTPhpnlQA6DSg==, figureFileBig=Meby4++uf6/wjqpmlzl/2w==, tableContent=null), ArticleFig(id=1236345825731867460, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图5, caption=
50%THA工况下转子等效应力, figureFileSmall=iuWNQPWiNSTPhpnlQA6DSg==, figureFileBig=Meby4++uf6/wjqpmlzl/2w==, tableContent=null), ArticleFig(id=1236345825849307979, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.6, caption=
Equivalent stress of the rotor with full flow channel under 50%THA condition, figureFileSmall=dJkEhGycCLzkD2UzeREvhQ==, figureFileBig=92EQ23sdTJxUGHQl0viF8A==, tableContent=null), ArticleFig(id=1236345825987720018, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图6, caption=
50%THA工况全周流道转子等效应力, figureFileSmall=dJkEhGycCLzkD2UzeREvhQ==, figureFileBig=92EQ23sdTJxUGHQl0viF8A==, tableContent=null), ArticleFig(id=1236345826075800406, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.7, caption=
Maximum equivalent stress under different steady-state conditions, figureFileSmall=Jw6GZafACw9j38zNcfdxDQ==, figureFileBig=aV07vaC7GEDTrkGxRP6cNg==, tableContent=null), ArticleFig(id=1236345826155492187, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图7, caption=
不同稳态工况下最大等效应力, figureFileSmall=Jw6GZafACw9j38zNcfdxDQ==, figureFileBig=aV07vaC7GEDTrkGxRP6cNg==, tableContent=null), ArticleFig(id=1236345826272932705, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.8, caption=
Contour of temperature on rotor surface under condition 1, figureFileSmall=0x3pTNmR64lahDw0I3Kn8g==, figureFileBig=El7y92X1wZWWyaPBp5PezQ==, tableContent=null), ArticleFig(id=1236345826386178924, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图8, caption=
工况1下转子表面温度, figureFileSmall=0x3pTNmR64lahDw0I3Kn8g==, figureFileBig=El7y92X1wZWWyaPBp5PezQ==, tableContent=null), ArticleFig(id=1236345826520396654, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.9, caption=
Creep life of turbine rotor under two different steam admission configurations in full-annulus flow path, figureFileSmall=4RVQb9+K8yYL6q2lBP1AAQ==, figureFileBig=2xaQfot2GLptJ5Uo/Arrpw==, tableContent=null), ArticleFig(id=1236345826629448561, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图9, caption=
全周流道2种不同配汽方式下汽轮机转子蠕变寿命, figureFileSmall=4RVQb9+K8yYL6q2lBP1AAQ==, figureFileBig=2xaQfot2GLptJ5Uo/Arrpw==, tableContent=null), ArticleFig(id=1236345826776249210, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.10, caption=
Transient maximum equivalent stress under variable operating conditions, figureFileSmall=fNRTkH+TIjEckZgtkDqN5w==, figureFileBig=8Ow8y0rxB7lwwmPgSpfcqQ==, tableContent=null), ArticleFig(id=1236345826931438463, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图10, caption=
变工况瞬态最大等效应力, figureFileSmall=fNRTkH+TIjEckZgtkDqN5w==, figureFileBig=8Ow8y0rxB7lwwmPgSpfcqQ==, tableContent=null), ArticleFig(id=1236345827057267587, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.11, caption=
Maximum equivalent stress during load reduction, figureFileSmall=tenR/hdBZXfXYSWj71AnLg==, figureFileBig=Cg0aAlNcOGiaR9zSHvx6Mw==, tableContent=null), ArticleFig(id=1236345827149542279, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图11, caption=
降负荷最大等效应力, figureFileSmall=tenR/hdBZXfXYSWj71AnLg==, figureFileBig=Cg0aAlNcOGiaR9zSHvx6Mw==, tableContent=null), ArticleFig(id=1236345827229234058, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Fig.12, caption=
Low cycle damage of the rotor under 2%THA、min load ascending condition, figureFileSmall=OUTKW2U3NJIauNx1a9vcag==, figureFileBig=876eXhwup3AR2WvFY81jTQ==, tableContent=null), ArticleFig(id=1236345827355063185, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=图12, caption=
2%THA/min升负荷工况转子低周损伤, figureFileSmall=OUTKW2U3NJIauNx1a9vcag==, figureFileBig=876eXhwup3AR2WvFY81jTQ==, tableContent=null), ArticleFig(id=1236345827485086617, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Tab.1, caption=
The rotor torque and errors with different grid numbers
, figureFileSmall=null, figureFileBig=null, tableContent=
| 静子网格数/万 | 转子网格数/万 | 动叶力矩/(N·m) | 力矩误差/% |
|---|
| 26.8 | 32.6 | 459.2 | |
| 15.4 | 19.9 | 459.7 | 0.11 |
| 12.2 | 15.7 | 462.9 | 0.80 |
| 8.6 | 10.8 | 467.0 | 1.70 |
| 5.4 | 6.9 | 481.2 | 4.80 |
), ArticleFig(id=1236345827573167007, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=表1, caption=
不同网格数下转子力矩误差
, figureFileSmall=null, figureFileBig=null, tableContent=
| 静子网格数/万 | 转子网格数/万 | 动叶力矩/(N·m) | 力矩误差/% |
|---|
| 26.8 | 32.6 | 459.2 | |
| 15.4 | 19.9 | 459.7 | 0.11 |
| 12.2 | 15.7 | 462.9 | 0.80 |
| 8.6 | 10.8 | 467.0 | 1.70 |
| 5.4 | 6.9 | 481.2 | 4.80 |
), ArticleFig(id=1236345827669636001, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Tab.2, caption=
Boundary conditions of each nozzle group
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 喷嘴组 | 入口温度/℃ | 入口压力/MPa | 出口压力/MPa |
|---|
| 96.5%THA | S1 | 538.0 | 16.50 | 11.93 |
| S2 | 538.0 | 16.50 | 11.93 |
| S3 | 538.0 | 16.50 | 11.93 |
| S4 | 516.2 | 14.20 | 11.93 |
| 88.8%THA | S1 | 538.0 | 16.50 | 10.98 |
| S2 | 538.0 | 16.50 | 10.98 |
| S3 | 504.0 | 12.85 | 10.98 |
| S4 | 504.0 | 12.85 | 10.98 |
| 74.7%THA | S1 | 538.0 | 16.50 | 9.23 |
| S2 | 486.0 | 11.15 | 9.23 |
| S3 | 486.0 | 11.15 | 9.23 |
| S4 | 486.0 | 11.15 | 9.23 |
), ArticleFig(id=1236345827787076516, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=表2, caption=
各喷嘴组边界条件
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| 工况 | 喷嘴组 | 入口温度/℃ | 入口压力/MPa | 出口压力/MPa |
|---|
| 96.5%THA | S1 | 538.0 | 16.50 | 11.93 |
| S2 | 538.0 | 16.50 | 11.93 |
| S3 | 538.0 | 16.50 | 11.93 |
| S4 | 516.2 | 14.20 | 11.93 |
| 88.8%THA | S1 | 538.0 | 16.50 | 10.98 |
| S2 | 538.0 | 16.50 | 10.98 |
| S3 | 504.0 | 12.85 | 10.98 |
| S4 | 504.0 | 12.85 | 10.98 |
| 74.7%THA | S1 | 538.0 | 16.50 | 9.23 |
| S2 | 486.0 | 11.15 | 9.23 |
| S3 | 486.0 | 11.15 | 9.23 |
| S4 | 486.0 | 11.15 | 9.23 |
), ArticleFig(id=1236345827900322729, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Tab.3, caption=
Properties of material 2Cr12ViMo121V
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线性膨胀/(×10–6/℃) | 热导率/(W·(m·k)–1) | 弹性模量/GPa | 定压比热/(J·(kg·K)–1) | 抗拉极限/MPa |
|---|
| 11.82 | 29.1 | 198 | 721 | 689 |
), ArticleFig(id=1236345828013568943, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=表3, caption=
2Cr12ViMo121V材料物性
, figureFileSmall=null, figureFileBig=null, tableContent=
| 线性膨胀/(×10–6/℃) | 热导率/(W·(m·k)–1) | 弹性模量/GPa | 定压比热/(J·(kg·K)–1) | 抗拉极限/MPa |
|---|
| 11.82 | 29.1 | 198 | 721 | 689 |
), ArticleFig(id=1236345828097455025, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Tab.4, caption=
Maximum equivalent stress of blades with different radius arcs
, figureFileSmall=null, figureFileBig=null, tableContent=
| 半径/mm | 等效应力/MPa |
|---|
| 0 | 523.5 |
| 1.0 | 258.8 |
| 2.3 | 227.2 |
| 2.8 | 234.9 |
| 3.0 | 242.8 |
), ArticleFig(id=1236345828210701237, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=表4, caption=
不同半径圆弧下叶片最大等效应力
, figureFileSmall=null, figureFileBig=null, tableContent=
| 半径/mm | 等效应力/MPa |
|---|
| 0 | 523.5 |
| 1.0 | 258.8 |
| 2.3 | 227.2 |
| 2.8 | 234.9 |
| 3.0 | 242.8 |
), ArticleFig(id=1236345828315558841, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Tab.5, caption=
Creep limit of 2Cr12ViMo1W1V
, figureFileSmall=null, figureFileBig=null, tableContent=
| 温度/℃ | 应力/MPa (时间为10 000 h) | 应力/MPa (时间为100 000 h) |
|---|
| 454 | 517 | 462 |
| 482 | 442 | 372 |
| 510 | 365 | 276 |
| 538 | 277 | 199 |
| 566 | 193 | 124 |
), ArticleFig(id=1236345828609160124, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=表5, caption=
2Cr12ViMo1W1V蠕变极限
, figureFileSmall=null, figureFileBig=null, tableContent=
| 温度/℃ | 应力/MPa (时间为10 000 h) | 应力/MPa (时间为100 000 h) |
|---|
| 454 | 517 | 462 |
| 482 | 442 | 372 |
| 510 | 365 | 276 |
| 538 | 277 | 199 |
| 566 | 193 | 124 |
), ArticleFig(id=1236345828697240512, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=EN, label=Tab.6, caption=
Low-cycle fatigue damage of the rotor
, figureFileSmall=null, figureFileBig=null, tableContent=
| 幅度 | 不同变工况速率 |
|---|
| 2%THA/min | 5%THA/min |
|---|
| 50%THA~100%THA | 5.8×10–5 | 2.3×10–4 |
| 50%THA~75%THA | 4.1×10–5 | 1.4×10–4 |
| 75%THA~85%THA | 3.2×10–5 | 4.7×10–5 |
| 85%THA~95%THA | 3.8×10–5 | 5.7×10–5 |
| 95%THA~100%THA | 2.6×10–5 | 4.0×10–5 |
), ArticleFig(id=1236345828814681030, tenantId=1146029695717560320, journalId=1210938733613449225, articleId=1236345816957382897, language=CN, label=表6, caption=
转子低周疲劳损伤
, figureFileSmall=null, figureFileBig=null, tableContent=
| 幅度 | 不同变工况速率 |
|---|
| 2%THA/min | 5%THA/min |
|---|
| 50%THA~100%THA | 5.8×10–5 | 2.3×10–4 |
| 50%THA~75%THA | 4.1×10–5 | 1.4×10–4 |
| 75%THA~85%THA | 3.2×10–5 | 4.7×10–5 |
| 85%THA~95%THA | 3.8×10–5 | 5.7×10–5 |
| 95%THA~100%THA | 2.6×10–5 | 4.0×10–5 |
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