2x600MW锅炉主要施工组织设计方案.docx

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1、海萨2x600MW锅炉主要施工方案Hisar2600MWBoi1erMainErectionP1an本期建设规模2600MW燃煤发电机组。锅炉由SEC提供。锅炉为亚临界参数、强制循环、一次中间再热、单炉膛平衡通风、固态排渣、露天布置、全钢构架的门型汽包炉。Thisprojectis2600MWcoa1firedtherma1units,boi1ersha11besupp1iedbySEC.Theboi1erisa11stee1structura1typedrumboi1erofaSubcritica1parameter,pumpcircu1ation,sing1ereheat,sing1efu

2、rnaceba1ancedraft,drys1aggingandhypaethra1p1acement.锅炉施工方案Boi1erErectionP1an锅炉为上海电气集团生产的亚临界参数、强制循环、一次中间再热、单炉膛平衡通风、固态排渣、露天布置、全钢构架的口型汽包炉。TheBoi1ersha11besupp1iedbySEC.Theboi1erisa11stee1structura1typedrumboi1erofaSubcritica1parameter,pumpcircu1ation,sing1ereheat,sing1efurnaceba1ancedraft,drys1aggingan

3、dhypaethra1p1acement.1 施工场地及主吊机械Erectionsiteandmainhoistingequipments1.1 施工场地布置Erectionsitep1ot锅炉组合场布置按总平面布置图，组合场内布置50t龙门吊各4台，锅炉受热面的大部分组合工作安排在此完成。Boi1erassemb1yyardwi11bearrangedaspergenera11ayoutdrawing.Four50Tgantrycraneswi11beprovidedrespective1y.Assemb1yofmostheatingsurfacestructureswi11bedonein

4、thisarea.1.2 施工机械选择Se1ectionofconstructionp1ants根据本工程锅炉的结构特点，以及我公司的机械状况，选用以下机械作为锅炉主要施工机械。Giventothefeaturesoftheboierandmechanica1capacityofourcompany,wechosep1antsbe1owasourmainconstructionequipmemnts.序号S1机械名称description机械型号mode数量quantity1圆筒吊cy1indrica1FZQ200080t2crane2履带吊CraWIercraneCC140013龙门吊fra

5、mecrane50t44履带吊CraW1ercraneCC250015劳辛格Stand-jacksystem200t26塔吊towercraneC705020t3(1)FZQ2000/80T圆筒吊FZQ2000/80Tcy1indrica1craneFZQ2000圆筒吊做为附吊机械，筒身高度102m,采用60m臂长工况，主要负责锅炉本体部件的吊装工作。FZQ2000cy1indrica1craneisarrangedasauxi1iaryhoistingp1ants,whichisdesignedtohoistboi1er&components(cranebodyheight102m,1eng

6、thofjib60m).(2)250t履带吊250tCraw1ercraneCC1400250t履带吊为锅炉主吊机械，采用SWS1塔式工况，后配重40t,主臂角度85度：主副臂：72m加36m；最大作业半径42m,负荷27t；最小作业半径24m时，负荷为39tCC1400/250Craw1ercranesaredesignedasmainboi1erhoistingeuqipment,adoptingSWS1towerworkingconditions,withaban1anceweightof40tandmainjibang1eof85o;1engthofmain&auxi1iaryjib,

7、72+36m,maxworkingradius42m,1oad27t;minworkingradius24m,1oad39t.吊装主要内容为：Mainhoistingscope:a.锅炉钢架吊装。Boi1erstee1structure1ifting.b.锅炉受热面吊装、空气预热器吊装。Boi1erheatingsurface,airpreheater1ifting.c.烟、风、煤管道安装F1uegas,air,coa1pipingerection.d.根据现场实际换工况用于大件设备的安装和卸车工作。Emp1oyedinerectionofotherheavyequipmentsandun1o

8、adingworks.CC1400250t履带吊性能表(SWS1塔式、后配重40t工况)主附臂(主臂角度85):72m+36m0CC1400250tcraw1ercraneperformance1ist(SWS1TOWERtype,ban1anceweight40t),main&auxi1iaryjib,72+36m(mainjibang1eof85o).幅度scope24m26m28m30m34m38m42m负荷1oad39t38t38t37t34t31t27t(3)前期采用C705020t作为钢结构的主要吊装机械，后期作为电除尘的主吊机械。Inprophase,C705020tsha11b

9、eemp1oyedasmainhoistingp1antsforStructurejinanaphasesha11beemp1oyedinhoistingESPcomponents.(4)其它吊装机械Other1iftingp1antsA四台50t龙门吊布置于锅炉组合场，负责设备装卸车、受热面膜式壁及蛇行管排的组合工作及烟风道的制作组合工作。4framecranesof50tsha11bearrangedinBoi1erstructureassemb1yyard,emp1oyedinequipments1oadingandun1oading,heatingsurfaceandpipecoi1a

10、ssemb1yworksandf1ue/airductingfabricatingasemb1yworks.b.50t汽车吊负责现场设备卸车倒运等工作。.b.Truckcraneof50tsha11beemp1oyedinequipmentsun1oadinginsite.c.卷扬机布置在锅炉0m,辅助进行炉膛内管排及小件的吊装。c.winchsha11bearrangedin0m,assistingfurnaceinterna1s1iftingandthe1iftingofsomesam11units,d.劳辛格负责汽包吊装工作。Stand-jacksystemwi11beusedinste

11、amdrum1istingworks.(5)施工电梯布置service1iftarrangment为方便锅炉施工，在炉一侧布置一施工电梯。Sservice1iftssha11bearrangedineachsideoftheboi1er.2 锅炉本体钢架安装Boi1erstee1structureerection锅炉钢结构由顶板、柱和梁、垂直支撑、水平支撑等部件组成，顶板由主梁、次梁和小梁组成一个坚固的梁格，其四周有水平支撑，主梁端有垂直支撑。Boi1erstee1structureconsistsofroof,co1umn,girder,vertica1and1atera1supportin

12、g,whi1eroofcomprisingofgirder,secondarybeam,trabecu1aandformingafirmbox.钢架内侧柱为主要承重钢柱，外侧副柱则通过梁、水平支撑与内侧柱相连，以增加钢架的整体稳定性。钢结构从前至后共有6排。锅炉钢架的连接，采用高强螺栓和焊接相结合的方式，顶板和主梁与次梁之间，柱和梁之间，垂直支撑、水平支撑之间采用扭剪型高强螺栓连接，其余构件间采用焊接连接。Interna1pi11arsofthestructurearedesignedforbearing,whi1etheexterna1pi11arsaredesignedtoreinforc

13、etheentirestabi1ityofstructurebyconnectingwithgirders,1atera1supportingandinterna1pi11ars.Thereare6rows.Bo1tandwe1dingareemp1oyedintheconnectionofstructure.2.1 吊装方案Hoistingp1ans主吊机械选用一台FZQ2000圆桶吊，一台CC1400履带吊为附吊机械，圆筒吊布置于锅炉炉左K、1间距锅炉本体外侧柱中心线5米处，CCI400履带吊布置于炉的另一侧。钢架各段本着由炉前至炉后、先主柱后辅柱原则分段吊装，即安装一段找正一段，验收本段

14、钢架后对高强螺栓进行终紧。钢架安装过程中相应段平台、楼梯、栏杆随之安装。Mainhoistingp1antscompriseofanFZQ2000cy1indrica1craneandCC1400craw1ercrane（asauxi1iaryhoistingp1ants）,thecy1indrica1cranesha11bearrangedat1eftsideofboi11erbetweenboi1ercentra11ineanditis5metersawayfromtheboi1ercentra11ine,CC1400craw1ersha11bearrangedontheotherside

15、ofboi1er.Eachsectionofthestructurefo11owstheru1eoffromfurnacefronttoback,frommainpi11arstocomp1ementpi11ars.Duiringtheprocessofstructureerection,p1atform,Stairecaseandhandrai1sshou1dbefinishsed.在钢架吊装过程中，视来货及制件完成情况，根据相应设备的安装位置和标高，把一次风热风道、二次风热风道、回转式空预器、预热器入口烟道、省煤器出口灰斗以及燃烧器连接风道等相关设备随之预存；各段吊装过程中，相应主降水管和刚性梁要临时吊挂在相应各层钢架梁上；视图纸具体情况缓装炉左侧及炉后7m标高下的部分拉条，做为炉内吊装设备的进入通道，炉膛内影响汽包（吊装中的初偏斜和炉顶调水平处）、板梁（炉膛内抬吊时）吊装的杆件缓装。Duringtheerectionofstructure,accordingtotheprogressofgoodssupp1yandpartsfabrication,anderectionpositionandheight,wecansavesomeequipmentsintheirrequiredpositionandercet1atersuchequipmentsinc1uding,