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1、卧式水轮发电机组安装工艺Horizontalhydro-generatingunitinstallationprocess卧式水轮发电机组的安装分为预埋部份(管路)、导水机构(主机)、轴承部份、基础部份、发电机部份、辅助设备。Theinstallationofthehorizontalhydro-generatingunitisdividedintoembeddedpart(piping),distributor(mainunit),bearingpart,foundationpart,generatorpart,auxil
2、iarypart.一、水轮发电机组埋件预埋Hydro-generatingunitembeddedpart根据工程进度的要求与土建配合对所需的油、气、水管路进行预埋,对所有埋设的管路的管口进行封堵,防止异物进入。Embedtheneededoil,gas,waterpipingaccordingtotheprojectprocessandcivilengineering.Plugallthepipeorificesofthepipingembeddedtokeepforeignmattersfromgettinginto.二
3、、测点放样Measuringpointlayout根据按甲方提供的高程按设计图纸来确定机组的三维坐标,方法可用水准仪或钢琴线连通器原理来保证机组中心、高程与X、Y坐标。Accordingtotheheightprovidedbyownerandthedesigndrawingtodeterminetheunitthree-dimensioncoordinate,andtheunitcenter,heightandX、Ycoordinatecanbeguaranteedwithbalancelevelorthelawofpia
4、nolineconnectedvessels.三、进水部份的安装Theinstallationofthewaterinletpart把阀门、伸缩节和进水弯管依次吊入预留的机坑内,用法兰连接,即阀门与伸缩节连接,伸缩节与进水弯管连接,并校正前后左右位置和安装高程,下部加临时支撑固定,用水准仪吊线法校正进水弯管法兰面高度和中心线位置,主要是校正进水弯管的水平、垂直度和中心高。Successivelyliftvalve,expansionjoint,waterinletelbowintothereservedpit.Useflan
5、getoconnectvalveandexpansionjoint,expansionjointandwaterinletelbow,thenadjustthepositionandinstallationheight,temporarysupportsarefixedatthebottom.Balancelevelplumbingmethodisadoptedtocheckthewaterinletelbowflangesurfaceheightandcenterlineposition,mainlytocheckthel
6、evel,verticalityandcenterheight.蝶阀在没安装凑合节前做好蝶阀静态的全开、全关调整工作,并检查在关闭状态的密封情况,在全开时阀门是否在中间位置,必要时给予适当的调整。Beforebutterflyvalveinstalledwiththeexpansionjoint,carryouttheallopen,allclosedadjustmentworkatthestaticstate,checkthesealsituationattheclosedstate,checkwhethervalveis
7、inthemiddlepositionattheallopenstate,thenadjustifnecessary.一、导水机构的安装(蜗壳)Theinstallationofdistribution(spiralcasing)金属蜗壳的安装是卧轴混流式水轮机安装中的一个重要环节,由于导水机构是整机出厂,所以可以整体同时安装。将蜗壳吊装就位后,蜗壳进水口与进水法兰面对好,加石棉橡胶垫套上螺栓拧紧,并穿上地脚螺栓,加临时支撑,为了保证蜗壳的位置正确必须做到以下三点:(1)蜗壳整体中心高程(2)蜗壳整体水平(3)蜗壳整体X、Y
8、垂直度。ThemetallicspiralcasinginstallationistheimportantpartduringhorizontalFrancisturbineinstallation.Installthedistributorintegrally,sincedistribu