38~68m水头150MW水电站水电站的机电部分初步设计毕业设计Word下载.docx
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整个毕业设计将综合运用计算机办公自动化、计算机辅助设计、机械制图、专业英语、水轮机及水轮机调节等专业课知识，在设计过程中培养了我独立分析问题及解决问题的综合能力。
Abstract
Theoriginal
design
calculates
tentativelytheelectromechanicalpartofthepowerstationofCaocunaccordingtothefirsthandinformationoffered.
The
contentincludes
fourparts:
selecting
the
typeofthehydraulicturbine,
thecalculationofregulation
andguaranty
andadjusting
thechoiceofthespeedequipment,thedesignof
theauxiliaryequipmentsystem
andtheplanofelectricpart.
Itis
importantfor
thewhole
designthatselecting
typeofhydraulicturbine.
Accordingtothefirsthandinformation,
tentatively
selecttwokindsofhydraulicturbinetypes,thereare20schemes
inallwaiting
tobeselected.
I
select
3
moreexcellentschemesaccordingtothemodelcomprehensivecharacteristiccurve
andthencarryonthecalculationofeconomictechnologycomparingandaverageefficiency,atlast
selecttheoptimumscheme.
Thehydraulicturbinetypeoftheoptimumschemeis
HL260/D74,
Twounits.The
diameter
of
therunneris
4.1m,rotationalspeed
is
136.4r/minand
efficiencyonaverage
90.4%.Count
themainsizeoftheriver’s
passing
inandout
way
and
mainsizeofthefactorybuilding
drawthe
cross-sectionsystemoffactorybuilding.
At
first,
theplanrequiresmeto
choose
straightclosingtime
ofbladeinthecalculationofregulation
andguaranty,so
temporarily
choose7s.Itrequiresme
tocalculate
theoperatingmodesofthe
designingfloodpeakandsupremefloodpeak
inswingingfull-loadand
make
corresponding
ξwithβworthdonotexceedthevalueofrule’sstipulation.Thisdesignrequiresξmax=30～50%andβmax＜45%.
Sincethispowerstationarrangement
type
singlemachine
fordisposing
singlepipe,
onlycalculate
aunit
for
swingingfull-load.
Theservomotordiameterthatselectedis
600mm,
governoris
DT—150，Oilpressure
installation
YZ—8.
Supplementaryequipmentiscalculatedrespectivelyforoil,air
watersystems.
Watersystemincludestechnicalwatersupply,thewatersupplyoffirecontrol,
lifewatersupply,thesystemof
overhaultodrainanddrainwithseepagesystem.It
calculatesmainlyforthe
air
systemoflowvoltageandthehighvoltageinfactory
ofairsystemandselects
correspondinggastankandaircompressor.
shoulddraw
acopyof
waterandair
system.
Electricalpartconsistsofreceivingintosystemand
mainwiring’sdesign.
voltagegrade
oftransmitting
power
is220KV,andthelineuses
twocircuits.
Thewire
typeof
transmitting
LGJ-240.Themainwiringincludes
sideofthegenerator’svoltage,
powerinthevoltageside,
nearlydistrictloadsideandfactoryuseby
oneself
in
theelectricside.Chooseshortcircuitpointand
calculateshortcircuitelectriccurrent,then
chooserelatedelectricequipment.Theexitsideof
thegenerator
adopts
unitwiring,
typeofthemainvoltagetransformer
SSPL1—120000/220*,
Transmitting
powerinthevoltagesideselects
theotherbridgewiring.
Generatorvoltage
appliesthe
overheadwire
directlyto
nearlydistrictload.
Checkaccordingtotherequirementthatthevoltageprotects.The
electricloadsideusingbyoneselfadopts
singlebusbarsegmentwiring.
Thewholegraduationprojectwillusetheofficeautomationofthecomputersynthetically,CAD,
mechanicaldrawing,
specializedEnglish,specializedcourseknowledge
including
hydraulicturbineandhydraulicturbine,
etc.It
hastrainedme
that
analyzingtheproblemandsolvingtheintegrationcapabilityoftheproblemindependentlyinthecourseofdesigning.
目
录
1
水轮机的选型设计
1.1
水轮机型号选择
1.2
原型水轮机主要参数的选择
1.3
较优方案选择
1.4
技术经济指标计算
1.5
最优方案选择28
1.6
最优方案的进出流水道计算30
1.7
绘制厂房剖面图34
2调节保证计算及调速设备的选择41
2.1设计水头甩全负荷情况的计算41
2.2最大水头甩全负荷情况的计算45
2.3调速设备的选择48
3辅助设备49
3.1气系统49
3.2水系统53
3.3透平油系统61
4
电气部分63
4.1
接入系统设计63
4.2
电气主接线设计65
附图180
附表12
附表26
附表387
参考文献88
38~68m水头150MW水电站水电站
原始资料
38~68m水头150MW水电站水电站位于安徽省靖江上，建成后将向芜湖等地区供电。
电站坝址选在38~68m水头150MW水电站上游2.3公里处，该处河段有一窄口，地质条件尚好，适宜建坝。
本电站为坝后式，压力钢管长70米，公路从左岸进入厂区。
电站装机情况：
Hmax
（m）
Hp
Hmin
N装机（MW）
利用小时（h）
升级会员 