简介：<正>OnOctober27thisyear,theDevelopmentandReformCommissionoftheNingxiaHuiAutonomousRegionheldtheReviewMeetingontheSpecialProgramforNingdongEnergyandChemicalIndustryBase.Themeetingresolvedtoconstructtenlarge-sizedpitheadpowerplantsinthermalpowerbaseinthe

简介：摘要乌东德水电站压力钢管采用780MPa高强钢，这是国产780MPa宽厚钢板首次大规模在我国水利水电行业应用。780MPa高强钢焊接具有工艺水平复杂，焊接质量要求高等特点，本文总结乌东德水电站压力钢管焊接关键施工过程，能够对后续相关施工起到指导和借鉴作用。

简介：PresentedbytheWorldWindEnergyAssociation(WWEA)andtheChineseWindEnergyAssociation(CWEA),theThirdWorldWindEnergyConference(WWEC2004)washeldinBeijinginNovember2004.AtthattimeChinajuststartedtodevelopwindpowerindustryinlargescale.Internationalorganizationsandgovernmentagenciesrelatedtoenergyandenvironmentalissueswereat-

简介：江苏常州市能效服务活动小组12g成员单位7个月内累计节电1200万千瓦时，节省电费开支约780万元。

简介：Thispaperpresentsanexperimentalstudyresultofflowfieldofadual-channelburner.Inordertosolvetheubiquitousproblemofbadrigidityofjetsindual-channelburners,wedgeswithdifferentarrangementsandstructuralparameterswereaddedtodifferentpositionsattheoutletoftheburners.LaserParticleImageVelocimetry(PIV)wasusedinthisstudytomeasuretheflowfieldtoinvestigateinfluenceofthewedgesonflowfieldofthedual-channelburner.Experimentalstudyshowsthatfixingwedgesatbothrightandleftsidesoftheburner'soutletcanincreasetheintensityofrecirculationwithoutchangingthesizeoftherecirculationzoneandenhancetherigidityofjetsviaincreasingspeedofthetwoprimaryairjetsattheoutlet.

简介：摘要前期国内水电站水轮机埋件蜗壳基本采用的610MPA级别钢材制造，在水电站中采用国产780MPA级别97MM超厚钢材尚属首次，780MPA级别钢板为目前国内外最高级别水电用钢，此种板厚及高级别钢材实物应用于蜗壳在国内外也极为罕见，由此780MPA级别钢材的超厚板焊接技术将为国产780MPA级别超厚钢材今后大批量应用奠定基础，更好地为我国后续高水头机组的流道设计提供系统可借鉴的参考资料。