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,auxiliarypart.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、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、Ycoordinatecanbeguaranteedwithbalancelevelorthelawofpianolineconnectedvessels.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.Useflangetoconnectvalveandexpansionjoint,expansionjointandwaterinletelbow,thenadjustthepositionandinstallationheight,temporarysupportsarefixedatthebottom.Balancelevelplumbingmethodisadoptedtocheckthewaterinletelbowflangesurfaceheightandcenterlineposition,mainlytocheckthelevel,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,checkwhethervalveisinthemiddlepositionattheallopenstate,thenadjustifnecessary.四、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垂直度。ThemetallicspiralcasinginstallationistheimportantpartduringhorizontalFrancisturbineinstallation.Installthedistributorintegrally,sincedistributorisoutoffactoryinonepiece.Whenthespiralcasingisliftedintoposition,checkspiralcasingwaterinletandwaterinletflangeface,padtheasbestosrubbergasketandtightenthebolts,fixwithfoundationalbolt,usetemporarysupport.Inordertoensuretheaccuracyofthespiralcasingposition,thefollowingthreepointsshouldbefulfilled:One,theunitycenterheightofthespiralcasing.Two:spiralcasingunitylevel.Three:spiralcasingunityX、Yverticality.§两台蜗壳就位后将采用橡胶水平器、钢琴线、框式水平仪吊线法等工艺，使精度达到优良标准。同时检查导水机构、导水叶的开口，立面间隙、端面间隙，做好静态手动开关机的调整，运动时无卡阻现象，并加以调整，完成上述工作后，点焊牢固，准备二期混凝土浇灌。Whenthetwospiralcasingsareputintoposition,userubberleveldevice,pianoline,frametypelevelsuspensionmethodtomaketheaccuracymeettheexcel...
