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

1、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。AbstractThe originaldesigncalculatestentatively the electromechanical part of the power station of Caocun according to the firsthand information offered.Thecontent includesfour parts:selectingthetype of the hydraulic tu

2、rbine,the calculation of regulationand guarantyandadjustingthe choice of the speed equipment, the design ofthe auxiliary equipment systemand the plan of electric part.It isimportant forthe wholedesign that selectingtype of hydraulic turbine.According to the firsthand information,tentativelyselect tw

3、o kinds of hydraulic turbine types, there are 20 schemesin all waitingto be selected.Iselect3more excellent schemes according to the model comprehensive characteristic curveand then carry on the calculation of economic technology comparing and average efficiency, at lastselect the optimum scheme.The

4、 hydraulic turbine type of the optimum scheme isHL260/D74,Two units. Thediameterofthe runneris4.1m, rotational speedis136.4r/min andefficiency on average90.4%. Countthe main size of the riverspassingin and outwayandmain size of the factory buildingdraw thecross-section system of factory building.Atf

5、irst,the plan requires me tochoosestraight closing timeof blade in the calculation of regulationand guaranty, sotemporarilychoose 7s. It requires meto calculatethe operating modes of thedesigning flood peak and supreme flood peakin swinging full-load andmakecorresponding with worth do not exceed the

6、 value of rules stipulation. This design requiresmax=3050% and max45%.Since this power station arrangementtypesingle machinefor disposingsingle pipe,only calculatea unitforswinging full-load.The servomotor diameter that selected is600mm,governor isDT150，Oil pressureinstallationYZ8.Supplementary equi

7、pment is calculated respectively for oil, airwater systems.Water system includes technical water supply, the water supply of fire control,life water supply, the system ofoverhaul to drain and drain with seepage system. Itcalculates mainly for theairsystem of low voltage and the high voltage in facto

8、ryof air system and selectscorresponding gas tank and air compressor.should drawa copy ofwater and airsystem.Electrical part consists of receiving into system andmain wirings design.voltagegradeof transmittingpoweris 220KV, and the line usestwo circuits.The wiretype oftransmittingLGJ-240. The main w

9、iring includesside of the generators voltage,power in the voltage side,nearly district load side and factory use byoneselfinthe electric side. Choose short circuit point andcalculate short circuit electric current, thenchoose related electric equipment. The exit side ofthe generatoradoptsunit wiring

10、,type of the main voltage transformerSSPL1120000/220*,Transmittingpower in the voltage side selectsthe other bridge wiring.Generator voltageapplies theoverhead wiredirectly tonearly district load.Check according to the requirement that the voltage protects. Theelectric load sideusing by oneself adop

11、tssingle bus bar segment wiring.The whole graduation project will use the office automation of the computer synthetically, CAD,mechanical drawing,specialized English, specialized course knowledgeincludinghydraulic turbine and hydraulic turbine,etc. Ithas trained methatanalyzing the problem and solvi

12、ng the integration capability of the problem independently in the course of designing.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281.6最优方案的进出流水道计算301.7绘制厂房剖面图342调节保证计算及调速设备的选择412.1设计水头甩全负荷情况的计算412.2最大水头甩全负荷情况的计算452.3调速设备的选择483辅助设备493.1气系统493.2水系统533.3透平油系统614电气部分634.1接入系统设计634.2电气主接线设计65附图180附表12附表26附表387参考文献883868m水头150MW水电站水电站原始资料3868m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3868m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）HpHminN装机（MW）利用小时（h）