GB 50825-2013 GB50825-2013钢铁厂加热炉工程质量验收规范-英文

NATIONALSTANDARD

OFTHEPEOPLESREPUBLICOFCHINA

CodeforualitAccetanceofReheatin

Qypg

FurnacesinIronandSteelWorks

GB50825-2013

:

ChiefDevelopmentDepartmentChinaMetallurgicalConstructionAssociation

:

ArovalDeartmentMinistrofHousinandUrban-RuralDeveloment

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ofthePeoplesRepublicofChina

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ImlementationDateMa12013

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ChinaPlanninPress

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Beiin2015

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钢铁厂加热炉工程质量验收规范英文中国冶金建设协

GB50825-2013

会组织编译—北京:中国计划出版社,

.2015.12

ISBN978-7-5182-0332-1

…中…钢铁厂加热炉工程质量工程验收

Ⅰ.①GⅡ.①Ⅲ.①----

技术规范中国英文

--Ⅳ.①TU745.7-65

中国版本图书馆数据核字()第号

CIP2015289919

ChineseeditionfirstpublishedinthePeoplesRepublicofChinain2013

EnlisheditionfirstublishedinthePeolesReublicofChinain2015

gppp

bChinaPlanninPress

yg

rd

,,

3FloorCTowerGuohongBuilding

,,

No.A11Muxidi-BeiliXichenDistrict

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,

Beijing100038

,

PrintedinChinabyBeijingJinghuaHucaisPrintingCO.LTD

2013byMinistryofHousingandUrban-RuralDevelopmentof

thePeoplesRepublicofChina

Allrightsreserved.Nopartofthispublicationmaybereproducedortransmittedinanyformor

,,,,,,

byanymeansgraphicelectronicormechanicalincludingphotocopyingrecording

,

oranyinformationstorageandretrievalsystemswithoutwrittenpermissionofthepublisher.

,,,

Thisbookissoldsubjecttotheconditionthatitshallnotbywayoftradeorotherwisebelent

,

resoldhiredoutorotherwisecirculatedwithoutthepublisherspriorconsentinanyformof

blindingorcoverotherthanthatinwhichthisispublishedandwithoutasimilarcondition

includinthisconditionbeinimosedonthesubseuenturchaser.

ggpqp

ISBN978-7-5182-0332-1AnnouncementofMinistrofHousinandUrban-Rural

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DevelomentofthePeolesReublicofChina

ppp

No.1597

AnnouncementofMinistrofHousinandUrban-RuralDeveloment

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ofthePeoplesRepublicofChinaonPublishingNationalStandard

CodeorQualitAccetanceoReheatinFurnacesinIronandSteelWorks

fypfg

TheCodeforQualityAcceptanceofReheatingFurnacesinIronandSteelWorkshasbeen

arovedasanationalstandardwithaserialnumberofGB50825-2013.Thiscodewillbe

pp

,

imlementedonMa12013.ThereofArticles4.8.5and4.10.3arecomulsorrovisionsand

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mustbeenforcedstrictly.

,

AuthorizedbourInstituteofStandardsandNormsthiscodeisublishedbChinaPlannin

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Press.

MinistrofHousinandUrban-RuralDevelomentofthePeolesReublicofChina

ygppp

,

December252012

Foreword

ThiscodewasointldeveloedbCaitalEnineerinandResearchIncororationLimited

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[]

andrelevantunitsaccordintothereuirementsofJianBiao2008No.105DocumentNoticeon

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()

PrintintheDevelomentandRevisionPlantheSecondBatchoNationalEnineerin

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ConstructionStandardsin2008issuedbMinistrofHousinandUrban-RuralDevelomentof

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thePeoplesRepublicofChinaMOHURD."

,

Durinthedevelomentofthiscodethedevelomentroufollowedtherelevantnational

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,

basicconstructionguidelineandindustrialpoliciesconductedrelevantinvestigationanddata

,

collectionintheselectedironandsteelworkssummedutheexeriencesofdesinunitsand

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,

manufacturersoftheironandsteelindustryinrecentyearsandwidelysolicitedtheopinionsof

,,,

exertsscholarsanddesinersofrelevantdesinunitsscientificresearchunitscomaniesand

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,,

otherorganizationsalloverthecountrymeanwhilestudiedanddigestedthelatestforeigndesign

,,

achievementsandfinalizedthedraftthrouhseriousstudcarefulanalsisandseveral

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amendments.

:

Thiscodecomrises12chatersand2aendixeswiththemaincontentsasfollowsGeneral

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,,,,,

ProvisionsTermsBasicReuirementsFurnacenon-standardeuimentSteelStructure

qqp

,,,

RefractorConstructionPiinofcombustionComressedAirandCoolinWaterSstem

ypgpgy

,,,

EvaorativeCoolinDeviceHdraulicandLubricationSstemElectricautomationFinal

pgyy

,,

accetancetestSafetandEnvironmentalProtectionetc.

py

Therovisionsrintedinboldteinthiscodearecomulsoronesandmustbeenforced

ppyppy

strictly.

MOHURDisinchareoftheadministrationofthiscodeandtheexlanationofthe

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,

compulsoryprovisionswhileChinaMetallurgicalConstructionAssociationinchargeoftheroutine

,

manaementandCaitalEnineerinandResearchIncororationLimitedinchareofthe

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explanationofspecifictechnicalcontents.Allrelevantorganizationsarekindlyrequestedtosumup

exeriencesandaccumulatedatainouractualracticesdurintherocessofimlementinthis

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,,

code.ThecommentsandsuggestionswhenevernecessarycanbepostedorpassedontoCapital

(:,

EnineerinandResearchIncororationLimitedAddressNo.7JiananieBeiinEconomic-

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:)

TechnologicalDevelopmentAreaPostCode100176toprovidereferenceforfuturerevision.

,,

ChiefDevelomentOranizationParticiatinDevelomentOranizationsChiefDraftin

pgpgpgg

:

StaffandChiefReviewersofthiscodeareasfollows

:

ChiefDevelomentOranization

pg

CapitalEngineeringandResearchIncorporationLimited

:

ParticiatinDevelomentOranizations

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,

CISDIEnineerinCo.LTD.

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WISDRIEngineeringandResearchIncorporationLimited

HuatianEnineerinandTechnoloCororation

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,

BeijingShougangConstructionGroupCo.Ltd.

··

1ChinaFirstMetalluricalConstructionGrouCororationLtd

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AnsteelConstructionGrouCo.Ltd

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YangzhouLeaderEngineeringTechnologiesCo.Ltd.

:

ChiefDraftinStaff

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HuWenchaoXuChungangFuYongtaoLiJingJiangAnjia

WanLihonYanSantanLianWeiGuoGuanminHuoHan

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YanYunfuLuoJianminXuShaochunWeiZeenYeChenlon

ggg

WangJingJiaDingSongPingHanYoulingLuDacheng

GonJinuoTianXuebinYanJianxinWuZhenhaiZouShounan

ggg

:

ChiefReviewers

CaiJiujuFuGuoliYinZhipingTangWeihongLiuXuemin

LiMinzhuLuoJinHuanXialanQinJianchaoLuYan

gg

TanWeiyiMengZhixiangChengShumingDaiHongYangWeiling

XueXiuzhan

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··

2Content

()

……………

1GeneralProvisions1

…………………………()

2Terms2

()

……………

3BasicRequirements3

……………()

4FurnaceNon-standardEuiment5

qp

…………()

4.1GeneralRequirements5

……………()

4.2WalkinTeMechanicalEuiment5

gypqp

………………………()

4.3RotaryHearthEquipment6

()

……………………

4.4BottomCar8

………()

4.5FurnaceDoorandDoorDrivingMechanism9

()

,………………

4.6RackTePusherCharinMachineandExtractor10

ypgg

………………()

4.7CantileverRoller10

()

……………………

4.8SuortinandSkidSstem11

ppgy

………………………()

4.9Burner15

()

……………

4.10ReenerativeCombustionEuiment16

gqp

…………………()

5SteelStructure18

()

…………

5.1GeneralRequirements18

……………………()

18

5.2Materials

()

………………………

5.3Welding18

……………()

5.4FastenerConnection19

()

……………………

5.5Assembling19

………………………()

5.6Erectin20

g

………………………()

5.7Paining20

………………………()

6RefractorConstruction22

y

…………()

6.1GeneralRequirements22

()

……………………

6.2Refractor22

y

………………()

6.3FurnaceLining23

()

……………………

6.4FlueLinin24

g

……………………()

6.5DuctLining24

,()

……

7PiinofCombustionComressedAirandCoolinWaterSstems25

pgpgy

…………()

7.1GeneralRequirements25

()

…………

7.2AccetanceofEuimentandMaterials25

pqp

……………()

7.3PipingInstallation27

()

……………………

7.4AcceptanceofPipingSystem29

…………………()

8EvaorativeCoolinSstem31

pgy

()

…………

8.1GeneralRequirements31

………………………()

8.2AccetanceofEuiment31

pqp

…………()

8.3PipingandAccessories33

··

1()

…………

8.4PipingPressureTest33

…………()

9HdraulicandLubricationSstem35

yy

…………()

9.1GeneralRequirements35

()

……………

9.2InstallationofEuimentandParts35

qp

………………()

9.3PreparationandWeldingofPiping36

()

…………

9.4InstallationofPiping36

,,…………………()

9.5PicklinFlushinPurinandPaintinofPiin36

gggggpg

……………………()

9.6PressureTestandCommissioningofSystem38

()

…………

10ElectricAutomation40

…………()

10.1GeneralRequirements40

()

…………………

10.2AcceptancebeforeInstallation40

…………()

10.3ErectionAccetance42

p

………………………()

10.4CommissionAcceptance43

()

……………………

10.5FunctionAccetanceofElectricAutomation43

p

……………………()

10.6AcceptanceofDocuments45

()

………………………

11FinalAcceptanceTest46

…………()

11.1GeneralReuirements46

q

……………………()

11.2SlabDisalignmentinWalkingBeamFurnace46

()

…………

11.3DisalinmentofRotarHearthFurnace46

gy

…………()

11.4SurfaceTemperatureofFurnaceCasing47

()

………………………

11.5Noise47

………………()

11.6QualifiedRate47

………()

12SafetyandEnvironmentalProtection48

()

………………………

12.1Safet48

y

……………………()

12.2EnvironmentalProtection51

,,()

……………

AppendixAFormulasofDegreasingPicklingNeutralizingandPassivating52

………………()

AendixBCleanlinessClassofPieFlushin53

pppg

…………()

ExplanationofWordinginThisCode54

()

…………

ListofQuotedStandards55

:……………()

AdditionExlanationofProvisions59

p

··

21GeneralProvisions

,

1.0.1Thiscodeisformulatedwithaviewtoimrovetheualitandtouniftheualit

pqyyqy

,,

accetancestandardsofthereheatinfurnacesinironandsteelworksandtomakesurethatthese

pg

furnacestoachievetherequiredperformance.

,

1.0.2Thiscodeisalicabletotheconstructionextensionandrenovationofcertaintesof

ppyp

,,

reheatingfurnacesinironandsteelworkssuchaspushertypewalkingbeamtypewalkinghearth

,,

typerotaryhearthtypeandbottomcartypeetc.

1.0.3Theualitaccetanceofthereheatinfurnacesinironandsteelworksshallcomlwith

qypgpy

,

therequirementsstipulatedinthiscodeandshallalsocomplywithrelevantcodesandstandardsof

thenation.

··

12Terms

2.0.1ReheatinFurnace

g

/

Furnaceusedtoheatbloomsorbilletsbeforehotworkininthesteelrollinandorie

ggpp

rollingshopsofironandsteelworks.

2.0.2Burner

Deviceusedtoprovideheatforthereheatingfurnacebythemeansofsafelyandstablyburning

,,

amixtureataproperproportionoffuelandcombustionpromoter.

2.0.3ReenerativeBurner

g

,,

Burnerinwhichtheregeneratorusedasamediumtotransferheatisheatedbythehotflue

,,

asintheheatstoraeeriodandthenintheheatreleaseeriodreleasesheattoreheatthe

ggppp

/,

combustionairgastoacertaintemperatureandtransferstheheatofthefluegastothe

/

combustionairgasandmakesitburning.

2.0.4Recuerator

p

,,/

Deviceusedtopreheatinanon-contactwaytheairgaswiththewasteheatofthefluegas.

2.0.5ExansionGa

pp

Thermalexpansiongapintherefractoryconstructionreservedduringfurnacelining.

2.0.6PartitionAppliance

,

Devicewhichwhentheasiinsstemisinaclosedorblockedstateandwithoutan

gppgyy

,

abnormalsituationsbearsthepressureofmediumwithinthedesignrangeandpreventsthegas

fromleakintotheisolatedarea.

g

2.0.7EvaporativeCoolingDevice

,,,,

Devicewhichutilizingthepropertyofwaterthatisabsorbingheatduringevaporationtake

awatheheatofthesuortskidorothereuimentinthefurnaceandmaintainthetemeratureof

yppqpp

,,

suchbeamorequipmentincertainrangeandatthesametimesendthesteamout.

2.0.8PressureTest

Thetestinwhichasorliuidisusedasthemediumtoraduallexertontheiearessure

gqgyppp

tothespecifiedvaluetoinspectthestrengthortightnessofthepipeorequipment.

··

23BasicReuirements

q

,

3.0.1Theualitaccetanceofreheatinfurnaceshouldbedividedinto5searateitems

qypgp

,,,,

namelfurnacenon-standardeuimentsteelstructurerefractorconstructioniinsstemand

yqpyppgy

,

electricautomationsystemandshouldbeconductedrespectively.

3.0.2Theconstructiondrawinsofreheatinfurnaceandrelevantdesindocumentsare

ggg

,,,

importantbasisofthequalityacceptance.Theconstructionmaterialequipmentmodeldimension

,,

dimensionaltoleranceeometricaltolerancemachininandweldinreuirementsshallmeetthe

gggq

requirementsintheconstructiondrawings.

,,,

3.0.3Themechanicaleuimentieaccessoriesandmaterialsoffurnaceshallbeforedeliver

qpppy

havecertificationandmeetthedesignrequirements.Thefactoryinspectionshallbeconductedfor

,

crucialmechanicaleuimentieaccessoriesandmaterialsoffurnace.

qppp

3.0.4Thepaintingandpackagingofthemechanicalequipmentandmaterialsoffurnaceshallcomply

/

withthereuirementsincurrentrofessionalstandardsYBT036.19GeneralSeciicationsor

qppff

/

ManufactureofMetallurgicalEquipment-PaintingandYBT036.21GeneralSpecificationsfor

ManuactureoMetalluricalEuiment-Packain.

ffgqpgg

,

3.0.5Comositionanderformancereortshallberovidedfortheheatresistantsteelwhichisused

pppp

forheatresistantcastin.Accetanceofheatresistantcastinshallcomlwiththereuirementsin

gpgpyq

/

currentrofessionalstandardsYBT036.2GeneralSeciicationsorManuactureoMetallurical

ppffffg

/

Euiment-IronCastinsandYBT036.3GeneralSeciicationsorManuactureoMetallurical

qpgpffffg

,

Euiment-SteelCastins.Theaearanceoftheheatresistantcastinshallbeevenflatandfreeof

qpgppg

obviouscastingdefects.

/

3.0.6AccetanceofsteelforinshallmeetthereuirementsincurrentrofessionalstandardYBT036.7

pggqp

GeneralSeciicationsorManuactureoMetalluricalEuiment-SteelForins.

pffffgqpgg

,,

3.0.7Thesteellatesteelieroundsteelandsectionsteelofreheatinfurnaceshallbe

pppg

,

providedwithmaterialqualitycertificateandthesurfacerustgradeshallnotbelowerthanGrade

/

BasstiulatedincurrentnationalstandardGBT8923.1-2011PrearationoSteelSubstrates

ppf

beforeApplicationofPaintsandRelatedProducts-VisualAssessmentofSurfaceCleanliness-

:

Part1RustGradesandPrearationGradesoUncoatedSteelSubstratesandoSteelSubstrates

pff

afterOverallRemovalofPreviousCoatings.

3.0.8Accetanceshallbeconductedofthefoundationofreheatinfurnacebeforeinstallationof

pg

;

themechanicalequipmentandsteelstructuresoffurnaceexternaldimensionsandtoleranceofthe

foundationshallcomlwiththereuirementsincivilconstructiondrawinsandcurrentnational

pyqg

standardGB50204CodeforAcceptanceofConstructionalQualityofConcreteStructures.The

,

foundationanchorboltsandbackinlatesofreheatinfurnaceshallcomlwiththereuirements

gpgpyq

incurrentnationalstandardGB50386CodeorAccetanceoEnineerinInstallationor

fpfggf

MechanicalEuimentoRollinMill.

qpfg

,

3.0.9Permanentmarkinshallbeleftonthefoundationforreferencelinereferenceointand

gp

referenceelevationofreheatingfurnace.

··

33.0.10Constructionandaccetanceofstackshallmeetthereuirementsincurrentnational

pq

standardGB50078CodeorConstructionandAccetanceoChimneWorks.

fpfy

3.0.11Anyonewhoperformsweldingoperationshallbetrainedorpasstheexaminationandget

,

theualificationandshallconductweldinontheualifieditemsandwithinthearoved

qgqpp

professionalscope.

··

44FurnaceNon-standardEuiment

qp

4.1GeneralRequirements

4.1.1Themechanicaleuimentoffurnaceshallbemanufacturedandinstalledaccordintothe

qpg

,,

requirementsinthedesignandtechnicaldocuments.Anymodificationifnecessaryshallbe

conductedafterrelevantdesinalterationisaroved.

gpp

,,

4.1.2Themechanicalequipmentoffurnaceshallbeforedeliveryhavecertification.

4.1.3Themechanicalequipmentoffurnaceshallhavethecompletesetofinstallationquality

recordsandthedocuments.

4.2WalkinTeMechanicalEuiment

gypqp

4.2.1Theallowabledeviationsofsiteacceptanceofthewalkingtypemechanicalequipmentshall

complywiththerequirementsinTable4.2.1.

Table4.2.1Allowabledeviationsofsiteaccetanceofwalkintemechanicaleuiment

pgypqp

Allowable

ItemCheckmethod

()

deviationmm

,

Checkingwithtautwireplumbboband

Deviationoflongitudinalcenterofliftroller±0.5

steelruler

,

Checkingwithtautwireplumbboband

Deviationoftransversecenterofliftroller±1.0

steelruler

,

Checkingwithtautwireplumbboband

Parallelismofliftrollertoframecenterline0.5

steelruler

,

DeviationoflonitudinalcenteroftranslationCheckinwithtautwirelumbboband

ggp

±1.0

rollersteelruler

Preassembl

y

,

DeviationoftransversecenteroftranslationCheckinwithtautwirelumbboband

gp

ofliftframe

±1.0

rollersteelruler

,

ParallelismoftranslationrollertoframeCheckinwithtautwirelumbboband

gp

0.5

centerlinesteelruler

,

TopsurfaceheightdifferenceoftranslationCheckingwithtautwireplumbboband

±0.5

rollersteelruler

,

ParallelismofsideguideplateofliftframetoCheckingwithtautwireplumbboband

0.5

framecenterlinesteelruler

Heightdifferencebetweenlowersurfaceof

,

Checkingwithlevelgaugelevellingruler

translationrailboardandtosurfaceofcolumn±2.0

p

orinsidemicrometer

support

,

DeviationoflonitudinalcenterofcolumnCheckinwithtautwirelumbboband

ggp

±1.0

supportsteelruler

Preassemblyof

,

DeviationoftransversecenterofcolumnCheckinwithtautwirelumbboband

gp

translationframe

±0.5

supportsteelruler

,

Checkinwithtautwirelumbboband

gp

Deviationoflongitudinalcenteroftranslationrail±1.0

steelruler

,

Checkingwithtautwireplumbboband

Deviationoftransversecenteroftranslationrail±1.0

steelruler

··

54.2.2Accetanceofthefieldinstallationofthewalkintemechanicaleuimentshallcoml

pgypqppy

:

withthefollowinreuirements

gq

1Thefieldinstallationofdoubleinclinedrailwalkingtypemechanicalequipmentshall

comlwiththereuirementsincurrentnationalstandardGB50386CodeorAccetanceo

pyqfpf

EngineeringInstallationforMechanicalEquipmentofRollingMill.

2Theallowabledeviationsoftheinstallationofcrankteliftdrivedevicesshallcoml

yppy

withthereuirementsinTable4.2.2.

q

Table4.2.2Allowabledeviationsoftheinstallationofcranktypeliftdrivedevices

Allowable

ItemCheckmethod

()

deviationmm

,

Checkinwithlevelauelevellinruler

gggg

Elevationdeviationofcrankshaftcenter±0.3

orinsidemicrometer

,

0Checkinwithlevelauelevellinruler

gggg

Topelevationdeviationofsupportroller

-1.0orinsidemicrometer

,

AssemblyofcrankDeviationofcenterdistanceofsupportCheckingwithtautwireplumbboband

±1.0

tesuortrollerrollersineverrowsteelruler

ypppy

,

DeviationoflongitudinalcenterofCheckingwithtautwireplumbboband

±0.5

suortrollersteelruler

pp

,

DeviationoftransversecenterofsupportCheckingwithtautwireplumbboband

±1.0

rollersteelruler

4.2.3Thecommissioningofunder-hearthmechanicalequipmentshallcomplywiththe

requirementsincurrentnationalstandardGB50386CodeorAccetanceoEnineerin

fpfgg

InstallationorMechanicalEuimentoRollinMill.

fqpfg

4.3RotarHearthEuiment

yqp

4.3.1Theupperandlowerhearthofthefurnaceshallbepreassembledrespectivelybefore

delivery.Theallowablemanufacturingdeviationsofbothupperandlowerchassisshallcomplywith

:

thefollowinreuirements

gq

,

1Toleranceofflatnessofthetopsurfaceofupperchassisshallbe10mmandallowablejoint

mismatchofsectorsteelstructureshallbe2mm.

:

CheckmethodCheckingwithspecialtools.

:

Samplesize100%.

()

2Theallowabledeviationsofradiusofinnerandouterarcanlelatesfirebricksshall

gp

complywiththerequirementsinTable4.3.1-1.

()

Table4.3.1-1Allowabledeviationsofradiusofinnerandouterarcanlelatesfirebricks

gp

HearthcenterdiameterofRadiusdeviationofinnerRadiusdeviationofouter

()()()

rotarhearthfurnacemarcanlelatemmarcanlelatemm

ygpgp

<10.0±4±4

10.0-20.0±7.5±7.5

>20.0±10±10

:

CheckmethodCheckingwithspecialtools.

:

Samplesize100%.

··

63Toleranceoflanenessofbottomlaneoflowerchassisshallnotbelarerthan4mm.

ppg

:

CheckmethodCheckinwithsecialtools.

gp

:

Samplesize100%.

;

4Allowabletoleranceoflanenessofthebottomlaneofsuortrailboardshallbe2mm

pppp

,,

thejointofsupportrailboardshallbesplicedata45°anglemoreovertheheightdifferenceatthe

;,

railointshallnotbelarerthan1mmointashallbe5to10mmtheunevenartofointshall

jgjgppj

,,

belevelledbygrindingwheeltheleveledlengthofrailendshallnotbelargerthan100mm

,,

moreoversmoothtransitionshallberealizedthebottomsurfaceofrailboardshallcontactthe

,,

bottomplaneoflowerchassisandbackingplatesshouldbeusedifsuchcontactisntflat

,

moreovertheabetweenbackinlatesshallbesmallerthan500mm.Theallowabledeviationof

gpgp

radiusofsuortrailboardshallbe±4mmwhentheaveraediameterofrotarhearthfurnaceis

ppgy

,

smallerthan20.0mand±7.5mmwhensuchaveragediameterislargerthan20.0m.

:

CheckmethodCheckinwithsecialtools.

gp

:

Samplesize100%.

,

5Theointofcenterinrailboardshallbeslicedata45°anleandtheallowableradial

jgpg

,,;

deviationofjointshallnotbelargerthan1mmmoreoverthejointgapshallbe6to10mmthe

,,;

untidointmabelevelledmoreoversmoothtransitionshallberealizedTheallowabledeviations

yjy

ofradiusofthecenteringrailplaneandallowabletoleranceofverticalityoftheplanewithrespect

tothesuortraillaneshallcomlwiththereuirementsinTable4.3.1-2.

ppppyq

Table4.3.1-2Allowabledeviationsofradiusofcenteringrailplaneandallowable

toleranceofverticalitoflanewithresecttosuortraillane

yppppp

AveragediameterofrotaryAllowabledeviationofradiusAllowabletoleranceofverticality

()()()

hearthfurnacemofraillanemmofraillanemm

pp

+1.5

<10.01

0

+2.0

10.0-20.01

0

+3.0

>20.01

0

:

CheckmethodCheckingwithspecialtools.

:

Samlesize100%.

p

6Theallowabledeviationofcenterdistancebetweentheneighboringpinteethholesinpintooth

,

rinshallbe±0.2mmthecumulativeallowabledeviationofcenterdistanceshallbe±0.6mm.The

g

allowableheightdifferencebetweenthehorizontalplaneformedbymidpointsofpinshaftsofpingearand

thelaneformedbmidointsofdrivewheelshallbe±2mm.Theallowableradiusdeviationsofthecircle

pyp

formedbinholecentershallcomlwiththereuirementsinTable4.3.1-3.

yppyq

Table4.3.1-3Allowabletolerancesofradiusofcirclesformedbinholecenters

yp

Allowabledeviationofradiusofcircle

()

Averagediameterofrotaryhearthfurnacem

()

formedbmidointsofinshaftmm

ypp

<10.0±4.5

10.0-20.0±6.0

>20.0±7.0

:

CheckmethodCheckinwithsecialtools.

gp

:

Samplesize100%.

··

74.3.2Theallowabledeviationsofthefieldinstallationoftherotarheartheuimentshall

yqp

comlwiththereuirementsinTable4.3.2.

pyq

Table4.3.2Allowabledeviationsofinstallationofrotaryhearthequipment

No.ItemAllowabledeviationCheckmethod

1Suorteneratrixelevationofsuortroller±0.50mmCheckinwithlevelaue

ppgppggg

Centerdistancedeviationindiameterdirectionof

2±3.0mmCheckingwithplumbbobandsteelruler

innersupportroller

Centerdistancedeviationindiameterdirectionof

3±3.0mmCheckingwithplumbbobandsteelruler

outersupportroller

,

PositiondeviationincircledirectionofinnerandCheckingwithtautwireplumbbobandsteel

4±0.5mm

outersuortrollersruler

pp

/

5Levelnessofsupportroller0.201000Checkingwithleveler

,

Checkingwithtautwireplumbbobandsteel

6Deviationofcenterlineofcenterinroller1.5mm

g

ruler

/

7Verticalitofcenterinroller0.101000Checkinwithleveler

ygg

,

Checkinwithlevelauelevellinruleror

gggg

8Elevationofunder-hearthdrivedevice±1.00mm

insidemicrometer

/

9Levelnessofunder-hearthdrivedevice0.101000Checkingwithleveler

,

Checkingwithtautwireplumbbobandsteel

10Centerlinedeviationofunder-hearthdrivedevice1.0mm

ruler

Innerradiusdifferenceofunder-hearthfurnace

11±5.0mmCheckingwithplumbbobandsteelruler

chassis

Mediumdiameterdifferenceofunder-hearth

12±5.0mmCheckinwithlumbbobandsteelruler

gp

furnacechassis

4.3.3Commissioningoftherotaryhearthequipmentshallcomplywiththerequirementsin

currentnationalstandardGB50386CodeorAccetanceoEnineerinInstallationor

fpfggf

MechanicalEuimentoRollinMill.

qpfg

:

CheckmethodFieldtestrunandmakingrecords.

:

Samlesize100%.

p

4.4BottomCar

4.4.1Theallowabledeviationsofthesiteaccetanceofthebottomcarshallcomlwiththe

ppy

requirementsinTable4.4.1.

Table4.4.1Allowabledeviationsofsiteaccetanceofbottomcar

p

ItemAllowabledeviationCheckmethod

Checkingwithsteeltapeandbalance

/

11000

Site

indicator

acceptance

,

CenterlinegapofrollersworkingplaneCheckingwithtautwireplumbboband

ofbottom

±0.5mm

symmetricaltofurnacecenterlinesteelruler

car

Planenessoftosurfaceofuide1.0mmCheckinwithtautwireandsteelruler

pgg

··

84.4.2Theallowabledeviationsoffieldinstallationofthebottomcarshallcomlwiththe

py

reuirementsinTable4.4.2.

q

Table4.4.2Allowableerrorsoffieldinstallationofbottomcar

()

ItemAllowabledeviationmmCheckmethod

,

CenterlineaofrollersworkinlaneCheckinwithtautwirelumb

gpgpgp

±1.0

symmetricaltofurnacecenterlinebobandsteelruler

BottomcarCheckinwithtautwireandsteel

g

rail1.0

installationruler

,

Checkingwithtautwireplumb

Parallelismbetweenguiderails2

bobandsteelruler

:

4.4.3Commissioninofthebottomcarshallmeetthefollowinreuirements

ggq

1Thehorizontaltravelofthebottomcarshallmeetrelevantdesinreuirement.

gq

2Thebottomcarshallbewithoutanyscrapeandobstructionwithinitsoperatingrangelimit.

:

CheckmethodFieldcommissioninandmakinrelevantrecords.

gg

:

Samplesize100%.

4.5FurnaceDoorandDoorDrivinMechanism

g

:

4.5.1Siteacceptanceofthefurnacedoorshallcomplywiththefollowingrequirements

,

1Theallowableerrorofexternaldimensionsofthefurnacedoorshallbe±2mmandthe

/

allowablediagonalerrorshallbe±0.5mmm.

/

2Theallowabledeviationofstraihtnessofthesealinfaceofthefurnacedoorshallbe±0.5mmm.

gg

:

CheckmethodMeasurinwithtautwireandsteelruler.

g

:

Samplesize100%.

3Theramminofthefurnacedoorlininshouldbedoneonthesite.

gg

,

4Afterthefabricationofthewatercoolingfurnacedoorframeiscompletethehydraulictest

shallbeconducted.Thetestressureshallbe1.5timesofthedesinressureandbeketfor15to

pgpp

20min.Thetestresultshallbeaccetedifneitherleakaenordeformationisfound.

pg

:

Checkmethodbulgetest.

:

Samlesize100%.

p

4.5.2Theallowableerrorsoffieldinstallationoftheliftfurnacedoorshallcomplywiththe

reuirementsinTable4.5.2.

q

Table4.5.2Allowableerrorsoffieldinstallationofliftfurnacedoor

()

No.ItemAllowabledeviationmmCheckmethod

,

DeviationofbearingcoordinateofdriveCheckingwithtautwireplumbboband

1±1

devicesteelruler

,

DeviationofbearingbasecentercoordinateCheckingwithtautwireplumbboband

2±0.5

ofdriveshaftsteelruler

3Centerdistanceofchainwheel±1Checkinwithsteelruler

g

,

CenterlinecoordinateofspeedreducerorCheckingwithtautwireplumbboband

4±1

hydrauliccylindersteelruler

5Verticalitoffurnacedoor3Checkinwithlumbbobandsteelruler

ygp

6Deviationoffurnacedoortravel±10Checkingwithsteelruler

··

94.5.3Theallowableerrorsoffieldinstallationofthehorizontalslidinfurnacedoorshallcoml

gpy

withthereuirementsinTable4.5.3.

q

Table4.5.3Errorsoffieldinstallationofhorizontalslidingfurnacedoor

No.ItemAllowabledeviationCheckmethod

,

Checkinwithtautwirelumbbobandsteel

gp

1Coordinateofsupportofdrivedevice±1mm

ruler

,

Checkingwithtautwireplumbbobandsteel

2Coordinateofcylindercenterline±1mm

ruler

/

3Levelnessoftopsurfaceofsliderail0.51000Checkingwithlevelgauge

4Deviationoffurnacedoortravel±10mmCheckingwithsteelruler

:

4.5.4Commissioningofthefurnacedoorshallcomplywiththefollowingrequirements

,

1Thefurnacedoorshallmovesmoothlwithinthedesinedtraveloranulartravelandthe

ygg

oerationtravelandoerationtimeshallmeetthereuirementsinthedesindrawins.

ppqgg

,

2Thedeviationofstoppositionofthefurnacedoorshallmeetthedesignrequirementsand

theositioninshallavoidanimact.

pgyp

,

3Whenthefurnacedoorisclosedthesealconditionofitshallbeood.

g

:

CheckmethodFieldcommissioningandmakingrelevantrecords.

:

Samlesize100%.

p

,

4.6RackTypePusherChargingMachineandExtractor

,

4.6.1Theallowabledeviationsofsiteaccetanceoftherackteushercharinmachineand

pyppgg

extractorshallcomlwiththereuirementsinTable4.6.1.

pyq

,

Table4.6.1Allowabledeviationsofthesiteaccetanceofrackteushercharinmachineandextractor

pyppgg

No.ItemAllowabledeviationCheckmethod

1Backlashofearrackair0.5mmLeadextrusionmethod

gp

2Toothdepthofcontactspot45%Coloringmethod

3Toothlengthofcontactspot55%Coloringmethod

/

4Planenessofpushsupportrod2mmCheckingwithlevelerandlevellingruler

5Planenessofverticalplaneofpushrodhead3mmCheckingwithlevelerandlevellingruler

,

4.6.2Beforedeliveryhydraulictestshallbeconductedforthewatercoolingcomponentofthe

lontravelcharinrodcharinmachine.Thetestressureshallbe1.5timesofthedesin

gggggpg

,

ressureandketfor15to20min.Ifneitherleakaenordeformationisfoundthetestresultshall

ppg

beaccepted.

,

4.6.3Fieldinstallationoftherackteushercharinmachineandextractorshallcomlwith

yppggpy

therequirementsincurrentnationalstandardGB50386CodeforAcceptanceofEngineering

InstallationorMechanicalEuimentoRollinMill.

fqpfg

4.7CantileverRoller

:

4.7.1Siteaccetanceofthecantileverrollershallcomlwiththefollowinreuirements

ppygq

1Hdraulictestshallbeconductedforthecantileverrollerbeforedeliver.Thetestressure

yyp

shallbe1.5timesofthedesignpressureandkeptfor15to20min.Ifneitherleakagenor

,

deformationisfoundthetestresultshallbeacceted.

p

··

10:

Checkmethodbuletestreort.

gp

:

Samlesize100%.

p

2Theheatresistantsteelradeshallbemarkedontherominentositionoftheroller.

gpp

4.7.2Fieldinstallationaccetanceofthecantileverrollershallcomlwiththefollowin

ppyg

:

reuirements

q

/

1Thematerialqualityofheatresistantsteelforthechargingdischargingcantileverrollershall

comlwiththereuirementsofthedrawins.

pyqg

:

CheckmethodCheckingthedocuments.

:

Samlesize100%.

p

2Theallowabledeviationsofinstallationacceptanceofthecantileverrollershallcomplywith

thereuirementsinTable4.7.2.

q

Table4.7.2Allowabledeviationsoftestitemsforinstallationofcantileverroller

No.ItemAllowabledeviationCheckmethod

/

1Transverselevelnessoftableframe11000Checkinwithlevelaue

ggg

/

2Lonitudinallevelnessoftableframe11000Checkinwithlevelaue

gggg

/

3Parallelismbetweenneihborinrollers0.51000Checkinwithinsidemicrometer

ggg

/,

VerticalitofrollercenterlinetocharinCheckinwithtautwirerockerarmandinside

yggg

/

40.101000

dischargingtablecenterlinemicrometer

,

ToelevationofeneratrixontosurfaceofCheckinwithlevellinrulerlevelerorlevel

pgpgg

0

5mm

-1.0

feedendrollergauge

,

Checkingwithlevellingrulerlevelerorlevel

0

6Elevationofcenterlineoffeedendrollermm

-1.0

aue

gg

,

TopelevationofgeneratrixontopsurfaceofCheckingwithlevellingrulerlevelerorlevel

+1.0

7mm

0

discharinendrolleraue

gggg

,

ElevationofcenterlineofdischargingendCheckingwithlevellingrulerlevelerorlevel

+1.0

8mm

0

rolleraue

gg

4.7.3Commissioningofcantileverrollershallcomplywithrelevantrequirementsinthetechnical

desindocumentsorincurrentnationalstandardGB50386CodeorAccetanceoEnineerin

gfpfgg

InstallationorMechanicalEuimentoRollinMill.

fqpfg

:

CheckmethodFieldcommissioninandmakinrelevantrecords.

gg

:

Samlesize100%.

p

4.8SuortinandSkidSstem

ppgy

4.8.1Constructionualitaccetanceoftheskidinreheatinfurnacewithdesinressurenot

qypggp

larerthan4.0MPashallcomlwiththereuirementsinthisSection.

gpyq

4.8.2Followingrequirementsshallbemetfortheheatresistantpillowblockofskidinwalking

:

beamtefurnaceandtheslidinblockofskidinushertereheatinfurnace

ypgpypg

1Theheatresistantpillowblockandslidingblockofskidshallbemadebyvacuumsmelting

andrecisioncastin.

pg

2Thechemicalcompositionandpurityofthealloyofheatresistantpillowblockandsliding

:

blockshallcomlwiththefollowinreuirements

pygq

),

1Thematerialusedshallbenewnowastepadorrecycledscrapshallbeusedasmaterial.

··

11)

2Thechemicalcomositionofallooftheheatresistantillowblockandslidinblockshall

pypg

meetrelevantreuirementsinthedesindocumentsoraskedbtheusercomlwith.

qgypy

:

CheckmethodCheckingthequalitydocumentsorsamplinginspectionandanalysis.

:

SamlesizeAtleast1samleforeachkindofmaterial.

pp

,

3Thesizeshapeandsurfacequalityoftheheatresistantpillowblockandslidingblockshall

:

comlwiththefollowinreuirements

pygq

),

1Thesizeshapeandallowabledeviationofthecastingsshallcomplywiththerequirements

inthedesindrawins.

gg

),

2Whencheckedwithvisualandfluorescentpenetrationinspectionthesurfaceshallbe

,,,,

withoutancrackcoldshutmisrunslainclusionsubsurfaceorositorenetratin

ygpypg

orosit.TheQualitradeofthefluorescentenetrationtestshallbeGrade2.

pyygp

),,,,

3Theclearcavitationdiameterofdepressionsandholeporeimpurityshrinkholeand

,

othercastindefectsshallnotbelarerthan1.5mmthedethofthemshallnotbelarer

ggpg

2

,

than0.6mmandthetotalnumberofthemshallnotexceed2pieceswithin400mm.

)

4Thesurfacerouhnessofthetosurfaceoftheadandthecontactareawiththesteel

gpp

pipeshallreachGrade12.5.

:,,

CheckmethodVisualinsectionfluorescentenetrationtestCheckinwithsteelrulerandothertools.

ppg

:

SamplesizeAtleast1sampleforeachkindofmaterial.

4Eachheatadshallhaveanallorademarkonit.

pyg

,

4.8.3TheelbowT-jointandplugofthesupportingandskidsystemshouldnotbecasting.Those

;

oftheevaorativecoolinskidshouldbesteelforintheelbowandT-ointofthewatercoolin

pgggjg

,

skidmaybemadebystampingorpushinganditsplugshouldbesteelforging.

:

CheckmethodCheckintheualitrecordsorsamlininsection.

gqypgp

:

Samplesize10%.

,,

4.8.4Forthebuttweldinoflonitudinalorcrossbeamandofcolumnandforthebuttweldin

ggg

,

betweenlonitudinalorcrossbeamandcolumnofskidinfurnacetunsteninertasweldin

gggg

(),

TIGshallbeadotedforrootweldinandtheweldinwireshallbeER50-4orER50-6inthe

pgg

/

ER50seriesstiulatedincurrentnationalstandardGBT8110WeldinWiresorGasShieldin

pgfg

ArcWeldinoCarbonandLowAlloSteels.Allotherweldingbeadsshallbemanualelectricarc

gfy

,/

weldinandtheelectrodeshallbeE5015stiulatedincurrentnationalstandardGBT5117

gp

CoveredElectrodesorMetalArcWeldinoNon-alloandFineGrainSteels.

fgfy

4.8.5Anonewhoerformstheweldinofevaorativecoolinsuortinbeammusthavethe

ypgpgppg

certificateofsecialeuimentoeratinersonnelofthePeolesReublicofChina.

pqppgppp

:

CheckmethodCheckinthecertificate.

g

:

Samplesize100%.

4.8.6Thedeliverualitofthesuortinandskidsstemshallmeetthefollowin

yqyppgyg

:

requirements

1Thesteeliestobeusedformakinskidcolumnshallbeofthesamesecificationandbe

ppgp

roducedinthesamebatchandbthesamemanufacturer.Dimensionaltoleranceofthesteelies

pypp

shallcomplywiththehighaccuracyclassrequirementsstipulatedincurrentnationalstandard

/,,

GBT17395DimensionsShaesMassesandTolerancesoSeamlessSteelTubes.

pf

:

CheckmethodCheckthequalitydocuments.

··

12:

Samlesize100%.

p

,

2Thesteeliestobeusedasskidandcolumnshallbestraihtenedbeforecuttinthefull

ppgg

,

lengthbendingshallbelessthan1mmthesmoothnessofthemachinedgroovesurfaceshallbe

,,,

Class12.5thearctransitionshallbesmooththeconcentricitshallbemaintainedtheoint

yj

,

misalignmentshallnotexceed1mmandallthemachinedsurfacesshallbetreatedwithoxidation

rotectionmeasures.

p

,

3Whentheheatresistantadorsliderisbeinweldedtotheskidoodcontactshallbe

pgg

,

guaranteedbetweentheblockorsliderandthesteelpipeoftheskidandthereshallnotbeanygapin

between.Ansinlecontinuousweldinalonthelenthoftheblockorslidershouldnotexceed200mm.

ygggg

4AllowabletolerancesofthemaincomponentsshallcomplywiththerequirementsinTable

4.8.6-1.

Table4.8.6-1Allowabletolerancesofmaincomonents

p

No.ContentAllowabletoleranceCheckmethod

)()

1Post-assemblymovablebeamandfixedbeaminclusiveofskidofpushertypereheatingfurnace

Checkinwithsteel

g

+2

1Totallengthdeviationofskidmm

-5

ruler

Checkingwithlevel

2Planenessofworkingplaneofpad2mm

aue

gg

Checkingwithlevel

+1

3Heightdeviationofskidmm

-2.0

aue

gg

)

2Post-assemblsinleiemovablebeamcolumnandfixedbeamcolumn

ygpp

Checkingwithsteel

1Totallenthdeviationofcolumn±2mm

g

ruler

Checkinwithsteel

g

2Totallenthbendinofcolumn2mm

gg

ruler

)

3Post-assemblydoublepipemovablebeamcolumnandfixedbeamcolumn

Checkinwithsteel

g

1Totallengthdeviationofcolumn±2mm

ruler

Checkingwithsteel

2Totallengthbendingofcolumn2mm

ruler

Checkingwithsteel

3Gapbetweencenterlinesof2pipes1mm

ruler

(),

5TIGbasedonargonarcweldingshallbeadoptedinthefirstweldingpassoftheskidand

thesubseuentweldinassesshallbeerformedwithelectricarcweldin.Theweldinseam

qgppgg

ualitoftheaccomlishedskidshallcomlwiththereuirementsinTable4.8.6-2.

qyppyq

Table4.8.6-2Weldinseamualit

gqy

FlawdetectionWeldingseamTechnicalclassof

SkidCheckmethod

proportionqualityclassflawdetection

Radiorahicdetection5%ⅡAB

gp

Watercoolinskid

g

Ultrasonicdetection95%Ⅰ-

Radiographicdetection10%ⅡAB

Evaporativecoolingskid

Ultrasonicdetection90%Ⅰ-

··

13:

CheckmethodCheckintheflawdetectiondocumentsandthereservedneativefilms.Theradiorahic

gggp

/

detectionshallcomlwiththereuirementsincurrentnationalstandardGBT3323Radiorahic

pyqgp

;

ExaminationoFusionWeldedJointsinMetallicMaterialstheultrasonicdetectionshallcomplywiththe

f

/

reuirementsincurrentrofessionalstandardJBT4730NondestructiveTestinoPressureEuiment-Part

qpgfqp

:

3UltrasonicTesting.

:

Samlesize100%.

p

:

4.8.7Fieldinstallationdimensionsoftheskidshallmeetthefollowingrequirements

1Thereferencelineoftheskidinstallationshallaccordwiththefurnacecenterlineandthe

chargingtablecenterline.

2Theallowableerrorsofinstallationdimensionsoftheskidshallcomplywiththe

reuirementsinTable4.8.7.

q

Table4.8.7Allowableerrorsofinstallationdimensionsofskid

No.ItemAllowableerrorCheckmethod

/

11000Checkingwithplumbbob

1Lonitudinalverticalitofcolumn

gy

()

Beforepre-drawingandsteelruler

/

0.51000Checkinwithlumbbob

gp

2Transverseverticalitofcolumn

y

()

Afterweldingandsteelruler

Verticalityofneighboringcolumnsofthe

,

3sameskidtheinclinationinfurnacewidth-Tautwire

directionshallnotbetowardthesameside

4Misalignmentofouterwallofcolumn1mmCheckingwithsteelruler

Distancebetweencolumnandfurnacecenter

5±1mmCheckingwithsteelruler

line

Elevationoftopsurfaceofskidofwalking

6±1mmCheckinwithlevelaue

ggg

beamtypefurnace

Elevationoftosurfaceoflonitudinalbeam

pg

7±2mmCheckinwithlevelaue

ggg

ofpushertypereheatingfurnace

:

4.8.8Theoerationandinsectionoffieldweldinshallcomlwiththefollowinreuirements

ppgpygq

1Theprocedurequalificationoftheweldingofevaporativecoolingskidshallbecarriedout

accordintothereuirementsinthedesindocuments.

gqg

:

CheckmethodCheckingthequalificationdocumentsofweldingprocedure.

:

Samlesize100%.

p

2Theweldingprocedureforwatercoolingskidmayrefertotherequirementsincurrent

nationalstandardGB50235CodeorConstructionandAccetanceoIndustrialMetallic

fpf

Piping.

3Theost-weldinnondestructivetestinofskidshallbeconductedafterstressrelief.

pgg

4TheweldingseamqualityofskidshallreachGradeⅡinthequalitygradinginTable

11.3.2ofcurrentnationalstandardGB50683-2011CodeorAccetanceoField

fpf

,

EuimentIndustrialPieWeldinConstructionQualitandthereuirementsinTable

qppgyq

4.8.8.

··

14Table4.8.8Weldinseamualit

gqy

FlawdetectionWeldingseamqualityTechnicalgradeof

SkidCheckmethod

roortionradeflawdetection

ppg

Radiorahicdetection5%ⅡAB

gp

Watercoolinskid

g

Ultrasonicdetection95%Ⅰ-

Radiorahicdetection10%ⅡAB

gp

Evaporativecoolingskid

Ultrasonicdetection90%Ⅰ-

,

5Ifandefectisfoundintheradiorahicdetectionofbuttointdoubletimesofadditional

ygpj

radiographicdetectionsshallbeconducted.Iftheresultoftheadditionaldetectionisstill

,

unualifiedradiorahicdetectionshallbeconductedforallthebuttointsweldedbthewelder.A

qgpjy

,

reworkedcratermabereairedtwiceatmostandifaweldmentisstillunualifiedafterbein

ypqg

,

repairedtwiceitshallbediscarded.

:

CheckmethodCheckintheflawdetectiondocumentsandthereservedneativefilms.Radiorahic

gggp

/

detectionshallcomplywiththerequirementsincurrentnationalstandardGBT3323Radiographic

;

ExaminationoFusionWeldedJointsinMetallicMaterialsultrasonicdetectionshallmeetthe

f

/

reuirementsincurrentrofessionalstandardJBT4730.3NondestructiveTestinoPressure

qpgf

:

Euiment-Part3UltrasonicTestin.

qpg

:

Samlesize100%.

p

4.8.9Systemflushingshallbeconductedfortheskidbeforecommissioning.Thetechnical

reuirementsandresultsoftheflushinshallcomlwiththereuirementsincurrentnational

qgpyq

standardGB50235CodeorConstructionandAccetanceoIndustrialMetallicPiin.

fpfpg

:

CheckmethodCheckingtheflushingrecords.

:

Samlesize100%.

p

:

4.8.10Hydraulictestoftheskidinfurnaceshallcomplywiththefollowingrequirements

1Hdraulictestoftheevaorativecoolinskidshallcomlwiththereuirementsin

ypgpyq

Chater8ofthiscode.

p

2Thetestpressureofhydraulictestofthewatercoolingskidshallbe1.5timesofthe

workinressureandbeketfor15to20min.Thetestresultshallbeaccetedifnoleakaeis

gpppg

found.

:

CheckmethodFieldbuletestandmakinrelevantrecords.

gg

:

Samlesize100%.

p

4.9Burner

:

4.9.1Siteacceptanceoftheburnershallcomplywiththefollowingrequirements

1Burneranditsaccessoriesshallbethefinishedroductswithcomletecertificationofthe

pp

,,

mainmaterialcomositionmanufacturinualitrecordsandrelevantdataandshallhave

pgqy

certificationatthetimeofdelivery.

:

CheckmethodCheckinthedocuments.

g

:

Samplesize100%.

,

2Theaearanceofweldmentoftheburnershallhaveevenandflatweldinseamandthe

ppg

,

residualmoltenslaslashandthelikeshallbecleared.Thecastinsurfaceshallbeflatandfreeof

gpg

castingdefects.Thepaintingshallbeeven.

··

15:

CheckmethodFieldvisualinsection.

p

:,

Samlesize20%atleast4ieces.

pp

3Theallowabledeviationofverticalityoftheflangefacewithrespecttotheaxisofthe

,

burnershallbe±1mmandtheallowabledeviationofconcentricitofthemetalnozzleandthe

y

brickopeningoftheburnershallbe2mm.

:

CheckmethodMeasurinwithsecialtoolsteelruler.

gp

:,

Samplesize20%atleast4pieces.

:

4.9.2Thefieldinstallationualitoftheburnershallmeetthefollowinreuirements

qygq

1Theallowabledeviationofthecenterlineelevationoftheburnershallbe±2mm.

2Theallowabledeviationoftheanleoftheinstallationlaneoftheburnershallbe±1°.

gp

3Theallowableheihtdeviationofboththebottomsurfaceofsinleflatflameburnerbrick

gg

andthefurnacetopsurfaceshallbe5mm.

:

CheckmethodMeasurinwithsecialtoolsteelruler.

gp

:,

Samplesize20%atleast4setsforburnersineachsection.

:

4.9.3Commissioninoftheburnershallcomlwiththefollowinreuirements

gpygq

1Theflameshapeoftheburnershallmeetthedesignrequirements.

2Theburnershallbecaableofburninstablwithoutflameliftinorflashback.

pgyg

:

CheckmethodOn-siteobservation.

:,

Samlesize20%atleast1ieceforeachteofburners.

ppyp

4.10ReenerativeCombustionEuiment

gqp

,

4.10.1Beforetheasreversinvalvebeindeliveredtothesitebothshelltestandsealtestshall

ggg

,,

beconductedforairreversinvalveonlsealtestshallbereuiredthetestmediumshouldbeas

gyqg

,

thetestressureshallbe1.1timesofthemaximumallowableworkinressureat20℃in

pgp

,

additionthedurationandtheleakaerateofthetestshallcomlwiththereuirementsinTable

gpyq

4.10.1.

Table4.10.1Testdurationandleakaerate

g

Allowableleakageratewithintestpressureduration

()

TestitemShortestdurationattestressures

p

3

(/)

mms

Shelltestofasreversinvalve300Novisibleleakae

ggg

Sealtestofasreversinvalve1200.3DN

gg

Sealtestofairreversinvalve1203DN

g

:,

NoteDNisthenominaldiameterofthereversingvalvetheunitismm.

:

CheckmethodCheckincertificationortestrecords.

g

:

Samplesize100%.

/

4.10.2Siteaccetanceofthereenerativechamberburnershallnotonlcomlwiththe

pgypy

:

requirementsinSection4.9ofthiscodebutalsocomplywiththefollowings

/,

1Theshellofthereenerativechamberburnershallbetihtandthereshallnotbeanas

ggyg

leakaeatall.

g

/

2Thereplacementoftheheatretainerinregenerativechamberburnershallbeconvenient.

/

4.10.3Thecontactbetweenreenerativechamberburnerofreenerativecombustionsstemandthe

ggy

furnacewallshallbetihtandthereshallnotbeanasleakaeorflamebelchin.Thecontentof

gyggg

··

16()/

carbonmonoxideCOintheambientareaofthereenerativechamberburnerinfurnaceshallbeless

g

3

/

than30mm.

g

:

CheckmethodCheckingwithonlineCOdetectororportableCOdetector.

:

Samlesize100%.

p

,

4.10.4Whiletheregenerativecombustionsystemisinnormalworkingconditiontheshell

/

surfacetemeratureofthereenerativechamberburnershallbebelow200℃.

pg

:

CheckmethodCheckinwithfarinfraredthermometer.

g

:,

Samplesize20%atleast2pairs.

··

175SteelStructure

5.1GeneralRequirements

5.1.1Qualitaccetanceofsteelstructureshallbeconductedaftertheinstallationofthewhole

yp

orthepartwithspatialrigidunitofonebranchworkisfinished.

5.1.2Theualitaccetancerecordsofthesubdivisionalworkofsteelstructureshallmeetthe

qyp

requirementsincurrentnationalstandardGB50205CodeforAcceptanceofConstructionQuality

oSteelStructures.

f

5.2Materials

,,,

5.2.1Thesteelproductsshallhavecertificationmoreovertheirvarietyspecificationand

erformanceshallcomlwiththedesinreuirements.

ppygq

:

Samplesize100%.

:,;

CheckmethodCheckinthecertificationChineselooandtestreortvisualinsectionof

ggpp

appearancequality.

,,

5.2.2Theweldinmaterialshallhavecertificationthevarietsecificationanderformanceof

gypp

;

thesteelroductsshallmeetthedesinreuirementstheaearanceofelectrodeshallnothave

pgqpp

,

aintinfalloffcorewirerustorotherdefects.

pg

:;

Samlesize100%1%andatleast5basforvisualinsection.

pgp

:,;

CheckmethodCheckingthecertificationChineselogoandtestreportvisualinspectionof

aearanceualit.

ppqy

,,,

5.2.3Highstrengthboltordinaryboltanchorboltandotherstandardfastenersaswellasnut

,,

washerandotherstandardfittinsshallhavecertificationthevarietsecificationand

gyp

performanceofthesteelproductsshallmeetthedesignrequirements.

:

Samlesize100%.

p

:,

CheckmethodCheckingthecertificationChineselogoandtestreport.

,,,

5.2.4Anticorrosiveainthihtemeratureaintdiluentcurinaentandothermaterialsshall

pgppgg

,,

havecertificationthevarietyspecificationandperformanceofsteelproductsshallmeetthedesign

reuirements.

q

:

Samplesize100%.

:,

CheckmethodCheckinthecertificationChineselooandtestreort.

ggp

5.3Weldin

g

:

5.3.1Accetanceofthekeitemsofweldinshallcomlwiththefollowinreuirements

pygpygq

,

1Theweldershallbetrainedorassrelevantexaminationandetthecertificationand

pg

conductweldinonitemsbeinualifiedthrouhexaminationandwithinthearovedscoe.

ggqgppp

:

Samplesize100%.

:

CheckmethodCheckinthewelderscertificationanditsvalideriod.

gp

,,

2ForT-jointcrossjointanglejointandsoonofwhichthefullpenetratedbuttjointand

··

18,

anlebuttointcombinedweldinseamisreuiredthefilletweldsizeandallowabledeviationshall

gjgq

comlwiththereuirementsincurrentnationalstandardGB50205CodeorAccetanceo

pyqfpf

ConstructionQualitoSteelStructures.

yf

:

5.3.2Accetanceofordinaritemsofweldinshallcomlwiththefollowinreuirements

pygpygq

,,

1Grade2and3notfullyfilledweldrootshrinkageundercutandotherappearancequality

itemsshallmeetthereuirementsinTableA.0.1ofAendixAofcurrentnationalstandard

qpp

GB50205-2001CodeforAcceptanceofConstructionQualityofSteelStructures.

:;

Samlesize10%andatleast3iecesforeachbatchofcomonentsofthesamete5%and

pppyp

,;

atleast1weldingseampassforeachtypeoftheweldingseamofthesampledcomponents1spot

,

oneachweldinseamassandatleast5lacesintotal.

gpp

:,

CheckmethodVisualinsectionormeasurinwithmanifierweldaueandsteelruler.

pgggg

,

2Theweldreinforcementunfitnessofbuttweldandotherallowabledimensiondeviationsshall

comlwiththereuirementsinTableA.0.2ofAendixAofcurrentnationalstandardGB50205-2001

pyqpp

CodeorAccetanceoConstructionQualitoSteelStructures.

fpfyf

:;

Samlesize10%andatleast3iecesforeachbatchofcomonentsofthesamete5%and

pppyp

,;

atleast1weldingseampassforeachtypeoftheweldingseamofthesampledcomponents1spot

,

oneachweldinseamassandatleast5lacesintotal.

gpp

:

CheckmethodMeasuringwithweldgauge.

,

3Theweldinseamshallhaveauniformaearanceandaoodshaeandshallbeclearof

gppgp

weldingslagandsplash.

:;

Samlesize10%andatleast3iecesforeachbatchofcomonentsofthesamete5%for

pppyp

;

eachtypeofweldingseamofthesampledcomponentsatleast5spotsintotal.

:

CheckmethodVisualinsection.

p

5.4FastenerConnection

5.4.1Qualitaccetanceofordinarfastenerconnectionshallcomlwiththereuirementsin

ypypyq

currentnationalstandardGB50205CodeorAccetanceoConstructionQualitoSteel

fpfyf

Structures.

5.4.2Qualityacceptanceoftheconnectionofhighstrengthboltshallcomplywiththerequirementsin

currentnationalstandardGB50205CodeorAccetanceoConstructionQualitoSteelStructures.

fpfyf

5.5Assemblin

g

5.5.1QualityacceptanceoftheweldedH-shapedsteelshallcomplywiththerequirementsin

currentnationalstandardGB50205CodeorAccetanceoConstructionQualitoSteel

fpfyf

Structures.

5.5.2Thefurnacetocrossbeamoftheuersteelstructureshallnotdownwar.Theallowable

pppp

deviationofcamberofthefurnacetopcrossbeamforwhicharchisrequiredbydesignshallbe

/,

±L5000andthatofcamberoffurnacetocrossbeamforwhicharchisntreuiredbdesin

pqyg

/,

shallbe0-L2000thereofListhesanofthefurnacetocrossbeam.Thisitemshallbetakenas

pp

adominantitemtobeacceptedbeforethefurnaceconstruction.

:

Samlesize100%.

p

:

CheckmethodMeasuringwithtautwireandsteelruler.

··

195.5.3Thereshallbemorethan50%ofcloselfitsurfacebetweenthesteelcasinandthe

yg

column.

:,

Samplesize10%ofallcontactsurfacesandatleast5pieces.

:,

CheckmethodMeasurinwith0.3mmfillerauewiththefillinareasmallerthan30%and

gggg

theedgegapnotlargerthan1mm.

5.6Erectin

g

5.6.1Theallowabledeviationofthecolumnbottomaxisrelativetotheositioninaxisshallnot

pg

belargerthan3mm.

:

Samlesize100%.

p

:

CheckmethodMeasurinwiththeodoliteandsteelruler.

g

,

5.6.2Whenthefoundationtosurfaceisdirectlusedasthesuortsurfaceofcolumnorthe

pypp

embeddedsteellateorbearinofthefoundationtosurfaceisusedasthesuortsurfaceof

pgppp

,/

columntheallowabledeviationsofitssupportsurfaceandthefoundationboltanchorboltposition

shallcomlwiththereuirementsincurrentnationalstandardGB50205CodeorAccetanceo

pyqfpf

ConstructionQualityofSteelStructures.

:,

Samlesize10%ofcolumnfoundationsandatleast3ieces.

pp

:,,,

CheckmethodMeasuringwiththeodolitelevelgaugetacheometrylevellingrulerandsteel

ruler.

/

5.6.3Theallowabledeviationofverticalityofthesinglesectioncolumnshallbeh1000andnot

,

larerthan10mmthereofhistheheihtofthesinlesectioncolumn.

ggg

:;,

Samplesize100%forstandardcolumns10%fornonstandardcolumnsandatleast3pieces.

:,

CheckmethodMeasurinwithtacheometrtheodoliteandsteelruler.

gy

,

5.6.4Theallowabledeviationsoftheinstallationofsteelplatformsteelladderandguardrailshall

comlwiththereuirementsinTableE.0.4ofAendixEofcurrentnationalstandardGB50205-2001

pyqpp

CodeorAccetanceoConstructionQualitoSteelStructures.

fpfyf

:,,

Samplesize10%ofsteelplatforms10%oftotallengthofrailandsteelladderbutatleast1

,

steellatformnotlessthan5mofrailandatleast1sectionofsteelladder.

p

:,,

CheckmethodMeasuringwiththeodolitelevelgaugesuspensionwireandsteelruler.

5.6.5Installationofsteelstructuresofthebodiesofwalkinbeamtefurnaceandrotarhearth

gypy

furnaceshallcomplywiththerequirementsincurrentnationalstandardGB50386Codefor

AccetanceoEnineerinInstallationorMechanicalEuimentoRollinMill.

pfggfqpfg

5.7Painin

g

5.7.1Thesurfacerustremovalofsteelproductsbeforepaintingshallnotonlycomplywiththe

/

desinreuirementsbutalsothereuirementsinGBT8923.1PrearationoSteelSubstrates

gqqpf

beforeApplicationofPaintsandRelatedProducts-VisualAssessmentofSurfaceCleanliness-

:

Part1RustGradesandPrearationGradesoUncoatedSteelSubstratesandoSteelSubstrates

pff

,

aterOverallRemovaloPreviousCoatins.Aftertreatmentthesurfaceofsteelroductsshall

ffgp

,,,,,,,

nothaveanyweldingslagweldingscardustoilstainwaterburretc.Ifthedesigndoesnot

,()

makesuchreuirementstherustremovalmethodandradeshallfitwiththeaintsreuiredb

qgpqy

thedesign.

··

20:,

Samlesize10%ofallcomonentsandatleast3iecesforthesameteofcomonents.

pppypp

:

CheckmethodCheckinwithscraerknifeorvisualinsectionaccordintotheictures

gppgp

/

providedincurrentnationalstandardGBT8923.1PreparationofSteelSubstratesbefore

:

AlicationoPaintsandRelatedProducts-VisualAssessmentoSuraceCleanliness-Part1

ppfff

RustGradesandPreparationGradesofUncoatedSteelSubstratesandofSteelSubstratesafter

OverallRemovaloPreviousCoatins.

fg

,

5.7.2Theaintvarietaintincoursesandaintinthicknessshallcomlwiththedesin

pypgpgpyg

,

requirements.Ifthedesigndoesnotmakeanyrequirementonpaintingthicknessthetotalnumber

ofaintincoursesofthemainsteelstructureshouldbe4.Twocoursesofrimeraintinandone

pgppg

;

courseoftoppaintingshoulddonebythemanufacturerafterthecomponentsareinstalledand

,

splice-weldedonthesiteonemorecourseoftoppaintingshouldbeapplied.Thetotalthicknessof

drfilmoftheaintlaershallnotbelessthan80mindoorandnotbelessthan100moutdoor.

ypy

μμ

:,

Samplesize10%ofallcomponentsandatleast3piecesforthesametypeofcomponents.

:()

CheckmethodMeasurinwithdraintfilmthicknessaue.Four4lacesshallbetested

gypggp

,

foreachcomponentandthethicknessvalueofeachplaceshouldbethemeanthicknessesofdry

paintfilmof3measuringpointsatthespacingof50mm.

,

5.7.3Thesurfaceofcomonentsshallbefreeofmissaintinandvoidofanaintineelin

ppgypgpg

,,,

andre-rusting.Inadditionthepaintingshallbeevenandfreeofobviouswrinkleflowfallneedle

holeandblowhole.

:

Samplesize100%.

:

Checkmethodvisualinspection.

()

5.7.4Thesotswheretheconstructiondrawinindicatesthatnoaintinbealiedshallnot

pgpgpp

,

becoated.Inadditionalengthof30to50mmshallbereserveduncoatedtemporarilyforfield

weldin.

g

··

216RefractorConstruction

y

6.1GeneralRequirements

6.1.1Qualitaccetanceoftherefractorconstructionofreheatinfurnacesinsteelrollin

ypygg

,

shopsteelforgeshopandmaintenanceshopofironandsteelworksshallcomplywiththe

reuirementsinthisSection.

q

6.1.2Constructionofrefractoryofthereheatingfurnaceshallcomplywiththerequirementsin

currentnationalstandardGB50211CodeorConstructionandAccetanceoIndustrialFurnace

fpf

Building.

6.1.3Qualitofrefractorconstructionofthereheatinfurnaceshallcomlwiththereuirementsin

yygpyq

currentnationalstandardGB50309CodeforQualityInspectionandAcceptanceofIndustrialFurnace

Buildin.

g

6.2Refractor

y

6.2.1Siteaccetanceofrefractormaterialsofthereheatinfurnaceshallcomlwiththe

pygpy

:

followinreuirements

gq

/

1ThealuminabrickshallcomlwiththereuirementsincurrentnationalstandardGBT2988

pyq

HihAluminaBricks.

g

/

2TheclabrickshallcomlwiththereuirementsincurrentrofessionalstandardYBT5106

ypyqp

FireclaBricks.

y

/

3ThelihtclabrickshallcomlwiththereuirementsincurrentnationalstandardGBT3994

gypyq

FireclaInsulationBricks.

y

/

4ThemanesitebrickshallcomlwiththereuirementsincurrentnationalstandardGBT2275

gpyq

MagnesiteBricksandMagnesium-aluminaBricks.

5ThealuminaInsulationBrickshallcomlwiththereuirementsincurrentnational

pyq

/

standardGBT3995ShapedInsulatingRefractoryProducts-HighAluminaBricks.

6Thesizeandaearanceoftheredbrickshallcomlwiththereuirementsincurrent

pppyq

nationalstandardGB5101FiredCommonBricks.

:,

CheckmethodsofItems1to6aboveCheckintheualitdocumentssamlininsection

gqypgp

()

upondoubtifanyandthethirdpartyinspection.

:/

SamlesizeSamlinaccordintothereuirementsincurrentnationalstandardGBT10325

ppggq

,

ShapedRefractoryProducts-RuleofAcceptanceSamplingandInspection.

7Thesizeandaearanceoftheanchorinbrickforreheatinfurnaceshallcomlwiththe

ppggpy

/,

requirementsincurrentnationalstandardGBT2988HighAluminaBricksandtheperformance

/

ofsuchbrickshallcomlwiththereuirementsincurrentnationalstandardGBT2988Hih

pyqg

,,

AluminaBricksmoreoveritsruturestrenthafter3hsinterinat1350℃shallnotbelessthan

pgg

8MPa.

:,

CheckmethodCheckintheualitdocumenston-sitesamlininsectionandthethirdart

gqypgppy

inspection.

··

22:/

SamlesizeSamlinaccordintothereuirementsincurrentnationalstandardGBT10325Shaed

ppggqp

,

RefractoryProducts-RuleofAcceptanceSamplingandInspection.

6.2.2Thesiteaccetanceofcastablerefractorforreheatinfurnaceshallcomlwiththe

pygpy

/

reuirementsincurrentrofessionalstandardYBT5083DenseFireclaandHihAlumina

qpyg

CastableReractories.

f

:,

CheckmethodCheckingthequalitydocumentson-sitesamplinginspectionandthethirdparty

inspection.

:/

SamlesizeSamlinaccordintothereuirementsincurrentnationalstandardGBT17617

ppggq

ReractorProducts-SamlinoRawMaterialsandUnshaedProducts.

fypgfp

6.2.3Thesiteacceptanceofplasticmaterialsforreheatingfurnaceshallcomplywiththe

/

requirementsincurrentprofessionalstandardYBT5115FireclayandHighAluminaPlastic

Reractories.

f

6.3FurnaceLinin

g

6.3.1Therefractorybuildingqualityoffurnacebodyshallcomplywiththerequirementsin

currentnationalstandardGB50309CodeorQualitInsectionandAccetanceoIndustrial

fyppf

FurnaceBuilding.

:,,

6.3.2Theseuenceofrefractorconstructionoffurnacebodfurnacewallfurnacetofurnace

qyyp

bottomandskid.

:

6.3.3QualitinsectionoflininoftheFurnaceshallcomlwiththefollowinreuirements

ypgpygq

1Qualityinspectionoftherefractorybuildingshallcomplywiththerequirementsincurrent

nationalstandardGB50309CodeforQualityInspectionandAcceptanceofIndustrialFurnace

Buildin.

g

2Thecracksoflasticrefractorlininshallbetreatedbeforebakinfurnaceaccordinto

pyggg

therequirementsinTable6.3.3.

Table6.3.3Treatmentmeasuresforcracksofplasticrefractoryliningbeforebakingfurnace

No.CrackwidthTreatmentmeasure

1>3mmatburnerorholes

Thecrackshallbedugintoawedgeopeningwithlarge

,,

2>5mmathotorkeyplaceinsideandsmalloutsidemoistenedbywatersprayand

carefullfilledublasticmaterial

ypyp

3>12mmatotherplaces

:

CheckmethodInsectionaccordintothereuirementsincurrentnationalstandardGB50309

pgq

CodeforQualityInspectionandAcceptanceofIndustrialFurnaceBuilding.

3Theexpansiongapsofrefractorybrickworksandunshapedrefractorybrickworksshall

comlwiththereuirementsincurrentnationalstandardGB50309CodeorQualitInsection

pyqfyp

andAccetanceoIndustrialFurnaceBuildin.

pfg

:

CheckmethodInspectionaccordingtotherequirementsincurrentnationalstandardGB50309Codeor

f

QualityInspectionandAcceptanceofIndustrialFurnaceBuilding.

:

SamlesizeAccordintothereuirementsincurrentnationalstandardGB50309Codeor

pgqf

QualitInsectionandAccetanceoIndustrialFurnaceBuildin.

yppfg

6.3.4Thefurnacelininmadeuofbothlasticmaterialandcastablerefractorshallbebaked

gppy

accordingtothebakingcurveofcastablerefractory.

··

236.4FlueLinin

g

6.4.1Qualityofbrickworkoftheflueshallcomplywiththerequirementsincurrentnational

standardGB50309CodeorQualitInsectionandAccetanceoIndustrialFurnaceBuildin.

fyppfg

:,,

6.4.2Thesequenceofbrickworkoffluewalldomebottomandflue.

6.4.3Qualitinsectionofthebrickworkofflueshallcomlwiththereuirementsincurrent

yppyq

nationalstandardGB50309CodeorQualitInsectionandAccetanceoIndustrialFurnace

fyppf

Building.

6.5DuctLinin

g

6.5.1Qualityoftheductliningshallcomplywiththerequirementsincurrentnationalstandard

GB50309CodeorQualitInsectionandAccetanceoIndustrialFurnaceBuildin.

fyppfg

6.5.2Qualityinspectionoftheinternalthermalinsulationductliningshallcomplywiththe

reuirementsincurrentnationalstandardGB50309CodeorQualitInsectionandAccetance

qfypp

ofIndustrialFurnaceBuilding.

:

CheckmethodInspectionaccordingtotherequirementsincurrentnationalstandardGB50309

CodeorQualitInsectionandAccetanceoIndustrialFurnaceBuildin.

fyppfg

:

CheckmethodAccordingtotherequirementsincurrentnationalstandardGB50309Codefor

QualitInsectionandAccetanceoIndustrialFurnaceBuildin.

yppfg

:

SamplesizeIncompliancewithrelevantrequirementsincurrentnationalstandardGB50309

CodeorQualitInsectionandAccetanceoIndustrialFurnaceBuildin.

fyppfg

:

6.5.3Internalthermalinsulationductlininshallcomlwiththefollowinreuirements

gpygq

/;

1Theliningmustnotbedamagedduringinstallationandorlifting

;

2Treatmentoftherefractorointsbetweeniesshallbetihtandreasonable

yjppg

;

3Alldetectiondevicesinstalledontheductshallbeabletorotatefreelyinthelining

,

4Thepressuretapthermometerholeandthelikeoftheductshallbekeptcleanandnot

;

blocked

,

5Theinterioroftheductshallbecleanandfreeofgarbagetemplateandotherdebris.

:

CheckmethodOn-sitevisualinsection.

p

:

Samlesize100%.

p

··

24,

7PiinofCombustionComressedAirandCoolinWaterSstems

pgpgy

7.1GeneralRequirements

7.1.1Piesandieaccessoriesstatedinthiscodeshallbetheienetworkinthereheatin

pppppg

,

furnaceareabehindthetakeoverpointincludingpipeswhicheffectsupplytothecombustion

,,,

sstemofthereheatinfurnacesuchascombustionairiefuelasieandfueloilieies

ygppgpppppp

,,

usedforpurgingandbleedingoffuelgaspipingandincludingcompressedairpipewatersupply

,

ieforcoolincomonentsandthelikelustheaccessoriesofalltheiesmentionedabove.

ppgpppp

7.1.2Installationofthegaspipinganditsaccessoriesshallcomplywiththerequirementsin

currentnationalstandardGB6222SaetCodeorGasoIndustrialEnterrises.

fyffp

7.1.3Qualityacceptanceofthecompressedairpipeandpneumaticsystemequipmentshall

comlwiththereuirementsincurrentnationalstandardsGB50231GeneralCodeor

pyqf

,

ConstructionandAcceptanceofMechanicalEquipmentInstallationEngineeringGB50235Code

orConstructionandAccetanceoIndustrialMetallicPiinandGB50093Codeor

fpfpgf

ConstructionandAccetanceoAutomationInstrumentationEnineerin.

pfgg

7.2AccetanceofEuimentandMaterials

pqp

,,

7.2.1Thepipingmaterialandpipeaccessoriesshallbeforebeingdeliveredtothesitebe

rovidedwiththecertificationofmaterialandcertification.

p

:;

CheckmethodCheckingrelevantdocumentsandcertificatesofthematerialsandequipment

:

Samlesize100%.

p

,

7.2.2Thequalityspecificationandperformanceofpipingmaterialsshallmeettherequirements

()

inrelevantnationalstandards.

:

CheckmethodCheckingthedesigndocumentsandon-sitesamplinginspection.

:,

SamlesizeIncaseofdisuteorcontractrovision10%orcontractroortionforeach

ppppp

,

batchanddoublingthesamplesizeuponanynonconformity.

,,

7.2.3Pieaccessoriessuchasthevalveandtheexansionointshallbeforeinstallationbe

ppj

:

inspectedaccordingtothefollowingrequirements

,,

1Fortheon-offvalveandtheblindlateusedonthefuelasieforwhichthereare

pgpp

,

requirementsofsealingthequalityinspectionandsealtestshallbeconductedbeforeinstallation.

/

ThesealtestshallcomlwiththereuirementsincurrentnationalstandardGBT13927

pyq

IndustrialValves-PressureTest.

:

CheckmethodSealtest.

:,

Samplesize10%andatleast1piece.

2Cutoffvalveontheurinandbleediniesshallbetestedwithasiinintheoverall

pgggppgppg

,

airtihtnesstestandshallnotbetestedsearatel.

gpy

3Valvesforairpipeandsmokeexhaustductmaybetestedwiththepipingintheoverallair

,

tihtnesstestandbeaccetedifnoobviousleakaeisfound.

gpg

4Theexpansionjointinstalledonthepipeshallcomplywiththerequirementsincurrent

··

25/

nationalstandardGBT12777GeneralSeciicationorMetalBellowsExansionJoints.The

pffp

,

aearanceandsizeoftheexansionointshallbecheckedbeforetheinstallationtheexansion

pppjp

jointusedonthefuelgaspipeshallbetestedintheoverallairtightnesstest.

:

CheckmethodCheckinthecertificationandon-sitesamlininsection.

gpgp

:,,

Samplesize10%andatleast1piecedoublingthesamplesizeuponanynonconformity.

5Siteaccetanceoftherubberhoseshallcomlwiththereuirementsincurrentnational

ppyq

/,

standardGBT8727HydraulicFluidPower-HoseAssembliesandthecertificationshallbe

rovided.

p

:

7.2.4Siteacceptanceoffansshallcomplywiththefollowingrequirements

1Siteaccetanceofthecombustionairfansandsmokeexhaustfansshallensurethatthe

p

,,

qualityofthesefansmeettherequirementsofthecontractinadditiontheinspectionitemsandthe

accetancestandardsshallcomlwiththereuirementsinTable7.2.4.

ppyq

Table7.2.4Siteinspectionitemsandacceptancestandardsforfans

No.ItemInsectionmethodandaccetancestandardSamlesize

ppp

/

JBT10213TechnicalSeciicationorAccetanceo

pffpf

1Weldappearance100%

WeldingQualityofVentilators

/

2PaintingqualityJBT6886TechnicalSpecificationforCoatingofVentilators100%

/

JBT10563TechnicalSeciicationorGeneralPuroses

pffp

3Fanvibrationvalue100%

CentrifugalFans

/

JBT10563TechnicalSpecificationforGeneralPurposes

4Bearingtemperaturerise100%

CentriualFans

fg

/

JBT10563TechnicalSpecificationforGeneralPurposes

5Noise100%

CentriualFans

fg

6AirinletreulatinvalveReulatintheoennessofvalveforfreerotationb90°100%

ggggpy

2Performancetestofthecombustionairfanshallcomplywiththerequirementsincurrentnational

/,

standardGBT1236IndustrialFans-PerormanceTestinUsinStandardizedAirwastheallworkin

fggyg

conditiondataandtheperformancecurveofthefanshallbeobtainedthroughthetestfromtheminimum

flowtothemaximumflow.

3Themeasuredvalueofthestaticpressuredeviationorflowdeviationofthecombustionair

fanshallmeettheositivedeviationreuirementsstiulatedincurrentrofessionalstandard

pqpp

/

JBT10563TechnicalSpecificationforGeneralPurposesCentrifugalFans.

:

CheckmethodExhausttest.

:

Samplesize100%.

:

7.2.5Siteaccetanceoftherecueratorshallcomlwiththefollowinreuirements

pppygq

1Therecuperatorshallbethefinishedproductwithacompletesetofdocumentssuchasthe

,,

maincomonentscertificationmanufacturinualitrecordandrelevantdataandthecertification.

pgqy

:

CheckmethodCheckinthedocuments.

g

:

Samlesize100%.

p

,

2Theoutsideweldinseamontherecueratorweldmentshallbeevenandsmoothandbe

gp

,,

clearofresidualmoltenslagsplashandthelikeandthepaintingshallbeeven.

:

CheckmethodOn-sitevisualinsection.

p

:

Samplesize100%.

··

263Theoverallairtihtnesstestshallbeconductedbeforedeliverforthemetallicair

gy

reheaterandasreheaterwhichareofweldinstructure.Suchtestshallcomlwiththe

pgpgpy

requirementsincurrentnationalstandardGB50486CodeorDesinoIndustrialFurnacesin

fgf

IronandSteelWorks.

:

CheckmethodBulgetest.

:

Samlesize100%.

p

:

7.2.6Siteacceptanceofthefluedampershallcomplywiththefollowingrequirements

1Thefluedamershallbethefinishedroductwithacomletesetofdocumentssuchasthe

ppp

,,

maincomponentscertificationmanufacturingqualityrecordandrelevantdataandthecertification.

:

CheckmethodCheckinthedocuments.

g

:

Samlesize100%.

p

2Theexternaldimensionsofthefluedamershallmeetthedesinreuirements.Thevalve

pgq

,

lateandtheshellshallbewellmatchedandthewarinofthevalvelateshallnotbelarerthan

ppgpg

/

3mm.Thebendingoftheshaftshallnotbelargerthan1mmm.

:

CheckmethodMeasurinwithtautwireandsteelruler.

g

:

Samplesize100%.

7.3PipingInstallation

,,,

7.3.1Themachininweldininstallationurinandcleaninandualitinsectiondurinthe

ggpgggqypg

pipeconstructionshallcomplywiththerequirementsinthedesigndocumentandcurrentnational

,

standardsGB50235CodeorConstructionandAccetanceoIndustrialMetallicPiin

fpfpg

,

GB50236CodeforConstructionofFieldEquipmentIndustrialPipeWeldingEngineeringand

,

GB50683CodeorAccetanceoFieldEuimentIndustrialPieWeldinConstruction

fpfqppg

,,

Quality.Sealinggasketsshallaccordingtothefluidcharacteristicofthepipebefittedonallspots

wheretheflaneconnectionorholt-downconnectionisadoted.

gp

:

CheckmethodCheckinthedesindocumentsandualitinsectionrecordsmadedurinthe

ggqypg

,

constructionon-sitesamlininsection.

pgp

:,

Samlesize10%doublinthesamlesizeuonannonconformit.

pgppyy

7.3.2Installationofthepipevalvesshallcomplywithnotonlytherequirementsindesign

documentsandinstructionsbutalsothoseincurrentnationalstandardGB50235Codeor

f

ConstructionandAcceptanceofIndustrialMetallicPiping.

:,

CheckmethodCheckintheconstructionrecordson-siteinsection.

gp

:,

Samplesize10%andatleast1piecedoublesamplesizeuponnonconformance.

7.3.3Theburstindiskshallbefittedineachairbranchieinthefurnaceareaoftheas-

gppg

,

burningreheatingfurnace.Suchdiskshouldbeontheendofthepipeitsoutletshallbeawayfrom

,

thewalkwaandwithrotectionnetanditsselectionanduseshallcomlwiththereuirements

yppyq

inthedesigndocument.

:,

CheckmethodCheckinthetechnicaldesindocumentsfieldinsectionoftheinstallation.

ggp

:

Samlesize100%.

p

7.3.4Attentionshallbepaidtotheproblemofdewcondensationoflowtemperaturefluegasin

theflueductofthecombustionsstem.Drainaedeviceshallbeinstalledatthelowestointofthe

ygp

flueductandthelowpointoftheflueductbeforethesuctionfan.

··

27:

CheckmethodFieldinsection.

p

:

Samlesize100%.

p

7.3.5Corrosionprotectionandpaintingofthepipingshallnotonlycomplywiththerequirements

inthedesindocumentbutalsothoseincurrentrofessionalstandardHGJ229Codeor

gpf

ConstructionandAcceptanceofIndustrialEquipmentandPipingAnticorrosionWorksaswellas

:

thefollowinreuirements

gq

1Rustproofmeasuressuchaspaintingshallbetakenontheexternalsurfaceoftheoverhead

,,,,,

ie.Beforebeinaintedtheiesurfaceshallbeclearedofanrustweldinslaburroilwater

ppgpppygg

andotherdirt.

2Paintthicknessofiinshallmeetthereuirementsinthedesindocuments.

ppgqg

,

3Theselectedaintshallbecaableofresistinthecorrosionbtheambientairshallmeet

ppgy

thehihestworkintemeraturereuirementofthefluidtransmittedbtheieandberovided

ggpqyppp

withrelevantcertification.

4Theundercoatshallmatchwiththetopcoatforthepipepainting.Butthepipewith

externalheatinsulationlaermabecoatedwiththeundercoatonl.

yyy

,,

5Theoutersurfaceofpipingofstainlesssteelnonferrousmetalgalvanizedsteelandthelike

shouldnotbeainted.

p

6Thecolorandlogoofpipingshallcomplywiththerequirementsincurrentnational

standardGB7231BasicIdentiicationColorsandCodeIdentiicationandSaetSinor

fffygf

IndustrialPipelines.

:,

CheckmethodCheckinthematerialualitcertificateconstructionrecordsandotherthe

gqy

,

documentsofcorrosionprotectionandpaintingfieldinspectionoftheappearancequalityandcolor.

:

Samlesize100%.

p

7.3.6Heatinsulationofthehotblastpipingshallcomplywiththerequirementsinthedesign

documentandcurrentnationalstandardGB50264DesinCodeorInsulationEnineerino

gfggf

,

IndustrialEuimentandPieconstructionrocessandualitcontrolshallcomlwiththe

qpppqypy

reuirementsincurrentnationalstandardGB50126CodeorConstructionoIndustrial

qff

EuimentandPielineInsulationEnineerin.

qppgg

1Installationofheatinsulationofthepipeshallbeconductedafterthepipepaintingis

acceted.Theoutersurfaceoftheieshallbeketcleananddrbeforetheinstallationofheat

ppppy

,,

insulationandmeasuresofpreventingfrostrainandsnowshallbetakenintheconstructionduring

thewinterorrainseason.

y

2Theheatinsulationmaterialforthepipeshallhavethequalitycertificateoranalysisand

,,,

testdocumentsofferedbthemanufacturermoreoverthetesecificationanderformanceof

yyppp

thematerialshallmeettherequirementsinthedesigndocuments.

,

3Installationofheatinsulationoftheieshallbeexecutedorderlontheieonebone

ppyppy

exceptfortheheattracingpipe.

4Qualitaccetanceofbrickinlaeroftheiewithinternalheatinsulationshallcoml

ypgypppy

withthereuirementsinChater6ofthisCode.

qp

5Installationofheatinsulationonthepipewhichneedstobepurgedwithsteamshouldbe

conductedaftertheurin.

pgg

:,

CheckmethodCheckingthedesigndocumentsandconstructionrecordson-sitevisual

··

28insectionandthicknesssamlininsection.

ppgp

:

Samlesize100%.

p

7.3.7Thedeviationoftheconcentricitybetweenmotorshaftandmainshaftcouplingshallbe

checkeddurintheinstallationoffans.Suchdeviationshallcomlwiththereuirementsin

gpyq

currentnationalstandardGB50231GeneralCodeforConstructionandAcceptanceofMechanical

EuimentInstallationEnineerin.

qpgg

:

CheckmethodMeasuringwithdialindicator.

:

Samlesize100%.

p

7.4AccetanceofPiinSstem

ppgy

,

7.4.1Aftertheiinsstembeininstalledthetihtnesstestandleakaetestshallbe

ppgyggg

,,

conducted.Thereofthetihtnesstestshallbeconductedfortheasieandbleediniethe

ggppgpp

leakaetestshallbeconductedfortheairieandtheexhaustflue.Theressuretestand

gppp

:

inspectionshallcomplywiththefollowingrequirements

1Thetihtnesstestandleakaetestoftheiinsstemshallbeconductedaftertheies

ggppgypp

andpipefittingstobetestedareinstalledandtheinstallationqualitymeetstherequirementsinthe

,

desindocumentbutbeforetheaintinandtheinstallationofheatinsulationareconducted.

gpg

,

2Beforethetesttemporaryrestrictiveprotectionmeasuresshallbetakenfortheexpansion

,,,

ointontheietobetestedthesafetvalvetheexlosionrooflatethedetectininstrument

jppypppg

,,

elementandthelikeonthepipeshallberemovedorisolatedmoreoverthepipetobetestedshall

()

besearatedfromtheunrelatedsstemsbblindlateorothermeasures.

pyyp

3Thetestingpressureofthegaspipeandthepurgeandbleedingpipesshallbe1.5timesof

theworkinressureoftheieandshallnotbelowerthan30kPa.Thetestediewhichcan

gppppp

standthetestingpressurefor2hoursandthepressuredropdoesnotexceed1%isacceptable.

,,,

4Fortheleakaetestoftheairieorexhaustfluetheweldinseamthevalvestuffinthe

gppgg

flaneandthreadconnectionartshallbecheckedundertheconditionthattheworkinressureof

gpgp

,

thefanisadustedtoitshihestvalueandtheendvalveoftheieisclosedthetestedieis

jgpppp

accetableaslonasnoleakaeisfounddurinthefoaminaenttest.

pggggg

:

CheckmethodCheckingtherecordsofpressuretestandinspectionandotherdocumentsof

theiinsstem.

ppgy

:

Samplesize100%.

7.4.2Thehandinoveraccetanceoftheieworkshallcomlwiththereuirementsin

gppppyq

currentnationalstandardGB50235CodeforConstructionandAcceptanceofIndustrialMetallic

Piin.

pg

:,

CheckmethodCheckingthepipingconstructionrecordsinspectionandpressuretestrecords

andallotherdocuments.

:

Samplesize100%.

:

7.4.3Commissioninoftheinstalledfanshallcomlwiththefollowinreuirements

gpygq

1Thevibrationlimitofthefanshallbelessthanthelimitstiulatedincurrentrofessional

pp

/

standardJBT10563TechnicalSeciicationorGeneralPurosesCentriualFans.

pffpfg

2Thetemeratureriseofthefanbearinshallmeetthereuirementsincurrentrofessional

pgqp

/

standardJBT10563TechnicalSpecificationforGeneralPurposesCentrifugalFans.

··

29:

CheckmethodMeasurinwiththermometer.

g

:

Samlesize100%.

p

3Thenoiselimitofthefanshallmeettherequirementincurrentprofessionalstandard

/

JBT8690IndustrialFansNoiseLimitedValue.

:

CheckmethodMeasuringwithnoisemeter.

:

Samlesize100%.

p

··

308EvaorativeCoolinSstem

pgy

8.1GeneralRequirements

8.1.1Theevaorativecoolinsstemofthereheatinfurnaceinthesteellantwiththeworkin

pgygpg

pressurenothigherthan4.0MPashallcomplywiththerequirementsinthisChapter.

8.1.2Theevaporativecoolingsystemengineeringofthereheatingfurnaceinvolvesthequality

,(),

accetanceoftheeuimentieincludintheaccessoriesaintinandheatinsulation.

pqpppgpg

8.2AccetanceofEuiment

pqp

8.2.1Theeuimentshallberovidedwiththemakerscertificate.Forth