欢迎来到天天文库
浏览记录
ID:51412637
大小:353.32 KB
页数:5页
时间:2020-03-23
《丰满水电站重建工程叠梁门分层取水水口取水效果研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、水利水电技术第48卷2017年第3期丰满水电站重建工程叠梁门分层取水进水口取水效果研究路振刚1,孙双科2,刘志国3,柳海涛2,郑铁刚2(1.国网新源控股有限公司,北京100053;2.中国水利水电科学研究院,北京100038;3.丰满大坝重建工程建设局,吉林吉林132108)摘要:为研究丰满水电站重建工程分层取水进水口的取水效果,开展了水温物理模型试验与三维数值模拟计算分析。研究结果表明,采用叠梁门分层取水进水口不能取得预期效果;一方面,旧坝距新坝仅120in,未拆除部分形成前置挡墙,对新旧坝之间的水温分布产生了影
2、响,表底层水温温差大幅减小,从而抑制了叠梁门的运行效果;另一方面,由于新旧坝间距120m,水电站运行时对旧坝缺口处的热通量影响甚微,旧坝的存在形成了前置挡墙,实际上已经起到了叠梁门的作用。基于上述结果,建议采用常规进水口布置方式替代叠梁门分层取水进水口布置方案。研究所得结果为工程设计优化提供了依据。关键词:丰满水电站重建工程;叠梁门;分层取水;布置方案;取水效果;数值模拟doi:10.13928/j.cnki.wrahe.2017.03.015中图分类号:TV663.9文献标识码:B文章编号:1000.0860(2
3、017)03.0082—05StudyOilwater-intakingeffectofmulti-levelintake、树thstoploggateforFengmanHydropowerStationReconstructionProjectLUZhengan91,SUNShuangke2,LIUZhigu03,LIUHaita02,ZHENGTiegan92(1.StateGridXinyuanCompanyLimited,Beijing100053,China;2.ChinaInstituteofWate
4、rResourcesandHydropowerResearch,Beijing100038,China;3.FengmanDamReconstructionProjectConstructionBureau,Jilin132108,Jilin,China)Abstract:Inordertostudythewater·-intakingeffectofthemulti··levelintakewithstoploggateforFengmanHydropowerStationReconstructionProjec
5、t,thephysicalmodeltestandthenumericalsimulativeanalysisonwatertemperaturearccarriedout.Thestudyresultshowsthattheexpectedeffectcannotbeobtainedfromthemulti—levelintakewithstoploggate;i.e.ontheonehand,thedistancebetweentheoriginaldamandthenewdamisonly120mandthe
6、remainingpartoftheoriginaldamformsaprepositiveretainingwall,whichhasaimpactonthetemperaturedistributionbetweenboththedamsandleadstoalargede—creaseofthetemperaturedifferencebetweenthesurfaceandthebottom,andthusrestrictstheoperationeffectofthestoploggate;ontheot
7、herhand,duetothedistanceof120mbetweentheoriginaldamandthenewdam,whentheoperationofthehydropowerstation,onlyaquitelessimpactisthereOUthethermalfluxatthegapoftheoriginaldarn,thatistosay,theex·istenceoftheoriginaldamformsaprepositiveretainingwallthatactuallyplays
8、theroleofastoploggate.Basedontheresuhmentionedabove,itissuggestedtoreplacethelayoutschemeofthemulti—levelintakewithstoploggatewiththatoftheconvert.tionalone.Keywords:FengmanHydropo
此文档下载收益归作者所有