E3102吊装方案.docx

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E3102吊装方案.docx

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E3102吊装方案.docx

E3102吊装方案

目录

1。

设备的主要参数Mainparameterofequipment

2.吊装方案的选择Selectionofliftingscheme

3.吊装的平面布置Liftinglayout

4.吊车吊装工况的选用SelectionofOperatingConditionoftheCranes

5.吊索具的选用SelectionofSlingsandRigging

6.吊车对地面的压力核算CalculationofPressureofCranetotheGround

7.PRIMARYPRODUCTEXCHANGER的安装步骤TheErectionSequenceofPRIMARYPRODUCTEXCHANGER

8.安全措施Safetymeasures

9.LiftingEquipmentsandToolsNeeded

10.吊车的性能表CranePerformanceChart

 

PRIMARYPRODUCTEXCHANGER(E3102)的吊装

1.设备的主要参数Mainparameterofequipment

PRIMARYPRODUCTEXCHANGER(E3102)设备自重75t,吊装的设备总重量均为77t(包括梯子平台的重量),设备外形尺寸为φ3500mm×9600mm,设备基础为框架基础,吊装除框架外无构成影响的障碍物。

ThedeadweightofPRIMARYPRODUCTEXCHANGER(E3102)is75tandthetotalweightofequipmenttobeliftedis77t(includingtheweightofladderplatform)withaoutlinesizeof3500mm×9600mm.Theequipmentfoundationisaframeworkfoundation,andtherearenootherobstaclestoliftingexceptframework.

2.吊装方案的选择Selectionofliftingscheme

根据现场的条件及现有的吊装机具,吊装采用单台吊车提升、整体吊装的方法来安装,主吊车选用一台400t履带吊(德国的LiebherrLR1400型),另外还需用一台250t履带吊(日本的神户制钢CKE2500型)辅助溜尾。

Accordingtothesiteconditionsandtheriggingsavailable,PRIMARYPRODUCTEXCHANGER(E3102)willbeliftedwhollybyasinglecrane.A400tcrawlercrane(GermanLiebherrLR1400type)willbechosenasmaincrane,anda250tcrawlercrane(JapanCKE2500type)astailing.

3.吊装的平面布置Liftinglayout

3.1吊装时主吊车、溜尾吊车的站车位置,详见下面的吊装平面布置图(图1)Thepositionsofmaincraneandtailingcranewhenliftingareshowninthefollowingliftinglayout.(Sketch1)

图1

4.吊车吊装工况的选用SelectionofOperatingConditionoftheCranes

4.1主吊车吊装工况的选用SelectionofOperatingConditionoftheMainCrane

PRIMARYPRODUCTEXCHANGER(E3102)金属重量均为75t,设备保温2t,吊索具(包括吊钩、平衡梁、卸扣、钢丝绳等)的重量为5t,因此吊装计算重量应为:

ThemetalweightofPRIMARYPRODUCTEXCHANGER(E3102)is75t,equipmentinsulation2tandslingsandrigging(includinghook,spreader,shacklesandwireropesetc.)5t.Thetotalweighttobeliftediscalculatedasfollows:

G=75+2+5=82t

选LR1400型履带吊的工况为:

起重臂长70m,作业半径16m。

在此工况下,吊车的额定起重量为104t,吊车的起重负荷率为η=79%,其起重能力完全能满足吊装要求。

TheselectedoperatingconditionofLR1400typecrawlercraneisasfollows:

Boomlengthis70m,operatingradius16m.Theratedliftingcapacityofthecraneunderthisconditionis104t,thepercentageofliftingloadofthecraneisη=79%,whichfullysatisfiestheliftingrequirement.

吊车吊装时的净高度计算参见下图(图2),Thenetheightoftheliftingisindicatedinsketch2.

吊车在上述的工况下,起重臂顶部滑车组中心距地面的高度为71.3m,吊装时的净高度h应为:

Underthesaidoperatingcondition,theheightfromthecenterofthepulleyblockatthetopoftheboomtothegroundlevelis71.3m,andthenetheightoftheliftingis

其中3m为平衡梁下端绳长,6m为平衡梁上端绳长,6.5m为就位基础框架高度。

Where3misthelengthoflowerendropeofspreader,6misthatofupperendropeand6.5misheightofframeworkofpositioningfoundation.

可见吊装的净高完全能满足吊装要求。

Accordingtotheabovecalculation,thenetheightoftheliftingcompletelysatisfiestheliftingrequirement.

4.2溜尾吊车吊装工况的选用SelectionoftheOperatingConditionoftheTailingCrane

参见图2,溜尾吊车的提升力F为:

Refertosketch2,theliftingforceoftailingcraneFiscalculatedasfollows:

经计算设备重心在5.2m处,Thecenterofgravityofequipmentiscalculatedat5.2m.

F=G'+3=41+3=44t

式中G'为起吊时溜尾吊车承受PRIMARYPRODUCTEXCHANGER(E3102)的金属重量与保温材料的重量之和,吊钩及索具的重量为3t,因此选250t履带吊的工况为:

起重臂长51.8m,作业半径12m。

在此工况下,吊车的额定起重量为72.5t,吊车的起重负荷率为η=61%,其起重能力完全能满足溜尾吊装的要求。

WhereG’isthesumofweightofmetalandinsulationmaterialsborneontailingcrane.Theweightofhookandriggingsis3t.Giventheabove,theoperatingconditionofthe250tcrawlercraneisdeterminedas:

boomlength51.8m,operatingradiuslessthan12m.Underthesaidoperatingcondition,theratedliftingcapacityofthecraneis72.5t,theliftingloadrateofcraneη=61%,whichfullymeetsthetailingrequirement.

5.吊索具的选用Selectionofslingsandrigging

5.1平衡梁Spreader

为了使PRIMARYPRODUCTEXCHANGER(E3102)在吊装过程中从水平状态能够顺利地转到垂直状态,需要使用平衡梁,平衡梁为我方自行制造,详见图3.InordertomakePRIMARYPRODUCTEXCHANGER(E3102)beliftedsmoothlytoaverticalpositionfromahorizontalpositionduringtheliftingoperation,aspreadermanufacturedbyusistobeused.Fordetails,seesketch3.

图3

5.2主吊耳及主吊索具MainliftinglugandMainSlingsandRigging

溜尾板式吊耳及设备主吊耳为设备的生产厂家制造,随设备供货。

参见设备制造图。

索具的受力计算如下:

Tailingplateliftinglugandmainliftinglug,suppliedtogetherwithequipment,aremanufacturedbyequipmentvender.Seetheequipmentmanufacturedrawings.Theslingbearingforceiscalculatedasfollows:

因此选用6个55t的卸扣,配合2对φ60.5mm钢丝绳扣(规格6×37+1(麻芯),σ=170kg/mm2,破断拉力为Pb=190t)作主吊索具,钢丝绳扣的长度为12m,对折后打两双使用,折减系数按0.75计,该钢丝绳扣的安全系数n为:

Accordingtotheabovecalculation,six55tshacklesaretobeusedmatchedbytwopairsofφ60.5mmwireropes(size6×37+1(hempcore),σ=170kg/mm2,breaktensileforcePb=190t)asmainslingsandrigging.Thelengthofwireropeis12m,whichwillbeusedafterbentdouble.Discountingcoefficientis0.75.Thenthesafetyparameterofthiswireropeiscalculatedasfollows:

5.3溜尾吊耳及溜尾索具LiftinglugsandslingsforTailing

溜尾的吊点选择在设备溜尾吊耳上,溜尾吊耳的结构及有关计算见设备制造图。

Theliftingpointfortailingissetatthetailingliftinglugsofequipment,thestructureofitandrelevantcalculationsseeequipmentmanufacturingdrawings.

选用2个25t的卸扣,配合1对φ43mm钢丝绳扣(规格6×37+1(麻芯),σ=170kg/mm2,破断拉力为Pb=97t)作溜尾吊索具,钢丝绳扣的长度为16m,对折后打两双使用,折减系数按0.75计,溜尾索具计算详见下列计算公式。

Two25tshacklesaretobeusedmatchedbyonepairofφ43mmwireropes(size6×37+1(hempcore),σ=170kg/mm2,breaktensileforcePb=97t)asslingsandriggingusedfortailing.Thelengthofwireropeis16m,whichwillbeusedafterbentdouble.Discountingparameteriscalculatedasper0.75.Detailsofcalculationfortailingslings,Seethefollowingformula:

该钢丝绳扣的安全系为:

Thenthesafetyparameterofthiswireropeiscalculatedasfollows:

>6

6.吊车对地面的压力核算CalculationofPressureofCranetotheGround

6.1主吊车的履带对地面的压力Pressureofcrawlerofmaincranetoground

LR1400型履带吊在上述工况时的车身总重量为328t,吊装的负荷为82t,因此主吊车LR1400型履带吊对地面的压力G=328+82=410t;吊车履带的接地面积F=22.4m2,因此主吊车对地面的压强P为:

Undertheaboveworkingoperation,thetotalweightofLR1400crawlercraneis328tandliftingloadis82t.SothepressureofmaincranetogroundG=328+82=410tandbottomareaofcrawlertothegroundF=22.4m2.ThenstrengthPofmaincranetogroundiscalculatedasfollows:

6.2溜尾吊车的履带对地面的压力Pressureofcrawleroftailingcranetoground

250t履带吊的车身总重量为180t,吊装的负荷为44t,因此溜尾吊车对地面的压力G=180+44=224t;吊车履带的接地面积F=17.2m2,因此溜尾吊车对地面的压强P为:

Undertheaboveworkingoperation,thetotalweightof250tcrawlercraneis180tandliftingloadis44t.SothepressureoftailingcranetogroundG=180+44=224t,andbottomareaofcrawlertothegroundF=17.2m2.ThenstrengthPoftailingcranetogroundiscalculatedasfollows:

为了保证吊装的安全,要求地面的地耐力大于20t/m2。

Forthesakeofsafety,thegroundbearingcapacityshouldbemorethan20t/m2

7.PRIMARYPRODUCTEXCHANGER(E3102)的吊装步骤:

TheErectionSequenceofPRIMARYPRODUCTEXCHANGER(E3102)

PRIMARYPRODUCTEXCHANGER(E3102)吊装的主要步骤为:

ThemainerectionsequenceofPRIMARYPRODUCTEXCHANGER(E3102)isasfollows:

7.1溜尾吊车和主吊车共同将设备抬起,离开地面200mm左右后试吊,停止进行检查,没有问题后再继续吊装。

LiftingPRIMARYPRODUCTEXCHANGER(E3102)byusingtailingcraneandmaincranetogether,trialliftingwillbestoppedandinspectionbeperformedafteritis200mmawayfromground.Continueliftingoperationwheneverythingischeckedsafeforalift.

7.2在起吊过程中溜尾吊车跟随设备以微速向前行走数米。

在溜尾吊车的配合下,将PRIMARYPRODUCTEXCHANGER(E3102)从水平状态起吊至垂直状态。

溜尾吊车松钩脱绳。

Thetailingcranetravelsafewmetersforwardbyfollowingequipmentatanextremelyslowspeedduringliftingoperation.Withthecooperationofthetailingcrane,themaincraneliftsPRIMARYPRODUCTEXCHANGER(E3102)toaverticalpositionfromahorizontalposition.Thenremovethehookandropeoftailingcrane.

7.3转动主吊车的起重臂,将PRIMARYPRODUCTEXCHANGER(E3102)对准设备基础的方向。

Turnthemaincraneboomtotheequipmentfoundation.

7.4到达就位的位置后,将PRIMARYPRODUCTEXCHANGER(E3102)对正基础,放下就位。

Whenreachedthepositionforlowering,PRIMARYPRODUCTEXCHANGER(E3102)isaimedatthefoundationandloweredinplace.

8.安全措施Safetymeasures

8.1必须严格执行吊车随机技术文件的规定,不能违章作业。

Allspecificationssuppliedwiththecranemustbestrictlyfollowed.Anyviolationofspecificationsisprohibited.

8.2设备吊装过程中,所用绳扣的长度必须符合本方案的要求,不能过长或过短。

Thelengthofallslingsusedfortheliftingoperationmustbeinlinewiththatrequiredinthisscheme.Thattheslingsareeithertoolongortooshortisnotallowed.

8.3起吊前,现场的杂物应清除干净,并平整场地,对吊装过程有影响的物体或已安装的构件要拆除,吊车吊装时的站车位置要平整坚实,防止出现下沉现象。

Beforelifting,thesiteshallbecleanedandleveled.Anyobjectsorstructuralmembersinstalledthathaveimpactontheliftingshallberemoved.Thelocationwherethecranestandsforliftingshallbelevelandsolidtopreventsinking.

8.4风力≥4级的天气不能进行吊装作业。

Noliftingoperationiscarriedoutwhenthewindforceis≥4scale.

8.5在吊装期间,现场必须拉上安全线,设置警戒区,严禁非作业人员进入。

Warningsignsandsafetybarricadesmustbeprovidedaroundtheareaduringliftingtopreventunauthorizedentry.

8.6吊装前要进行安全检查,确认无误后,再进行试吊,试吊高度为200~300m,经检查合格后再正式起吊。

Beforelifting,safetyinspectionmustbeconducted.Whensafetyisensured,performliftingbytrialanderrormethod.Theheightfortrialliftingis200~300m.Whenthetrialliftingproveseverythingissafeforalift,startliftingoperation.

8.7参加吊装的人员要明确分工,集中精力,服从指挥,坚守岗位。

吊装的作业人员共有8人:

2名吊车司机(朱玉华、陈星华),1名监工(陈敏),5名起重工(黄增革、吴水龙、邓运红、廖继、谭耀才),信号指挥是黄增革,采用哨音信号及旗指挥信号。

Thepersonnelengagedintheliftingoperationshallbegivenclearresponsibilityandarerequiredtoconcentrateonthework,tofollowordersandtosticktohispost.Acrewof18isassignedtoperformtheliftingactivity,thatincludes2craneoperators(ZhuYuhua,ChenXinghua),1supervisor(ChenMin),5riggers(HuangZengge,WuShuilong,DengYunhong,LiaoLi,TanYaocai).ThebankmanisHuangZengge.Whistlesignalandflagsignalareusedfordirectingtheliftingoperation.

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