《电力建设施工技术规范 第2部分：锅炉机组》DLT 5190.2

ICS××.×××

J×××

备案号:JXXX-XXXXDL

中华人民共和国电力行业标准

DL/T5190.2—XXXX

P替代DL5190.2－2012

电力建设施工技术规范

第2部分：锅炉机组

Technicalspecificationforthermal

powererectionandconstruction

Part2:Boilerunit

（征求意见稿）

****-**-**发布****-**-**实施

国家能源局发布

DL/T5190.2—××××

I

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目次

1总则.........................................................................1

2术语.........................................................................2

3基本规定.....................................................................4

3.1一般规定....................................................................................................................................4

3.2安装与建筑的衔接....................................................................................................................5

3.3绿色施工与成品保护................................................................................................................5

4锅炉构架及有关金属结构.......................................................6

4.1一般规定....................................................................................................................................6

4.2锅炉基础检查、划线和垫铁安装...........................................................................................6

4.3锅炉构架安装和二次灌浆.......................................................................................................7

4.4工程验收..................................................................................................................................11

5受热面......................................................................12

5.1一般规定..................................................................................................................................12

5.2汽包、汽水分离器、联箱.....................................................................................................13

5.3水冷壁......................................................................................................................................14

5.4过热器、再热器、省煤器和减温器.....................................................................................15

5.5锅炉连通管道..........................................................................................................................16

5.6炉顶吊挂装置..........................................................................................................................16

5.7锅炉门孔安装..........................................................................................................................16

5.8锅炉密封部件..........................................................................................................................16

5.9循环流化床锅炉受热面设备.................................................................................................17

5.10水压试验................................................................................................................................19

5.11工程验收................................................................................................................................19

6锅炉附属设备................................................................21

6.1一般规定..................................................................................................................................21

6.2空气预热器..............................................................................................................................21

6.3燃烧装置..................................................................................................................................23

6.4炉水循环泵及启动循环泵.....................................................................................................24

6.5吹灰系统..................................................................................................................................24

6.6工程验收..................................................................................................................................25

7锅炉附属管道及附件..........................................................26

7.1一般规定..................................................................................................................................26

7.2锅炉附属管道..........................................................................................................................26

7.3启动系统..................................................................................................................................26

7.4汽包水位计..............................................................................................................................26

7.5安全阀......................................................................................................................................27

7.6工程验收..................................................................................................................................27

II

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8烟、风、燃（物）料管道及附属设备.............................................28

8.1一般规定..................................................................................................................................28

8.2烟、风、燃（物）料管道的组合及安装.............................................................................28

8.3烟、风、燃（物）料管道附件及装置.................................................................................28

8.4烟气余热回收装置安装.........................................................................................................30

8.5炉膛及烟风系统密封性试验.................................................................................................30

8.6工程验收..................................................................................................................................31

9燃油系统设备................................................................32

9.1一般规定.................................................................................................................................32

9.2卸油装置安装.........................................................................................................................32

9.3油罐及其附件安装.................................................................................................................32

9.4燃油泵房设备.........................................................................................................................32

9.5燃油系统受油前应具备的条件............................................................................................33

9.6工程验收.................................................................................................................................33

10锅炉辅助机械...............................................................34

10.1一般规定...............................................................................................................................34

10.2辅机安装通则.......................................................................................................................34

10.3辅机油系统...........................................................................................................................38

10.4磨煤机...................................................................................................................................38

10.5风机.......................................................................................................................................40

10.6给煤机...................................................................................................................................41

10.7空气压缩机...........................................................................................................................42

10.8除灰设备...............................................................................................................................42

10.9捞渣机...................................................................................................................................42

10.10冷渣器设备.........................................................................................................................43

10.11工程验收.............................................................................................................................43

11输煤设备...................................................................44

11.1一般规定...............................................................................................................................44

11.2胶带输送机...................................................................................................................44

11.3胶带输送机的卸煤设备.......................................................................................................47

11.4磁铁分离器...................................................................................................................48

11.5碎煤机...........................................................................................................................48

11.6筛煤机...........................................................................................................................49

11.7卸车设备...............................................................................................................................50

11.8煤场设备...............................................................................................................................51

11.9工程验收...............................................................................................................................52

12炉墙砌筑...................................................................54

12.1一般规定...............................................................................................................................54

12.2不定形耐火耐磨料施工.......................................................................................................56

12.3定型耐火耐磨料施工...........................................................................................................58

12.4循环流化床锅炉烘炉...........................................................................................................59

12.5工程验收...............................................................................................................................60

III

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13锅炉机组启动试运及验收.....................................................61

13.1一般规定...............................................................................................................................61

13.2锅炉化学清洗前及清洗后检查..........................................................................................61

13.3锅炉机组蒸汽吹管前及吹管后检查..................................................................................62

13.4蒸汽严密性试验及安全阀调整..........................................................................................63

13.5整套启动试运中的检查.......................................................................................................63

13.6工程验收...............................................................................................................................64

附录A生活垃圾焚烧锅炉安装.....................................................65

附录B燃气—蒸汽联合循环电站余热锅炉安装.......................................68

附录C锅炉钢结构的制造和装配公差...............................................70

附录D高强度螺栓连接工程检验项目...............................................77

附录E锅炉基础轴线与外形尺寸允许偏差...........................................81

附录F火电安装中常用钢材的临界温度.............................................82

附录G受热面管的外径和壁厚的允许偏差...........................................86

附录H管式空气预热器的制造和装配公差...........................................87

附录J水压试验临时管路与堵头的强度计算要求....................................89

附录K烟风道、燃（物）料管道制造尺寸的允许偏差................................90

附录M大型动力设备基础的允许偏差...............................................91

附录N轨道铺设要求.............................................................92

附录P垫铁面积计算要求.........................................................93

标准用词说明...................................................................94

引用标准名录...................................................................94

条文说明.......................................................................96

IV

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Contents

1Generalprovisions······························································································1

2Terms··············································································································2

3Basicrequirement································································································4

3.1Generalprovisions··············································································································4

3.2Therelationshipbetweeninstallationandcivilinplantconstruction···················································5

3.3Greenconstructionandproductprotection·················································································5

4BoilerFrameworksandMetalStructures···································································6

4.1Generalprovisions··············································································································6

4.2Boilerfoundationcheck,mark,parallelserection···········································································6

4.3Boilerframeworkerectionandgrouting····················································································7

4.4Acceptanceandcheck··························································································11

5Boilerpressureparts··························································································12

5.1Generalprovisions·····························································································12

5.2Steamdrum,steam-waterseparator,header····································································13

5.3Waterwalls·································································································14

5.4Superheater,reheater,economizer,desuperheater·····························································15

5.5Boilerconnectedline···························································································16

5.6Tophangingdevice···························································································16

5.7Furedoor,peepdoorandfurnacewallaccessory·······························································16

5.8Boilersealing··················································································································16

5.9Circulationfluidizedbedboilerpressureparts·································································17

5.10Boilerhydraulictest···························································································19

5.11Acceptanceandcheck·························································································19

6Boilerauxiliaries································································································21

6.1Generalprovisions·····························································································21

6.2Airpreheater····································································································21

6.3Combustionapparatus··························································································23

6.4Boilercirculationpump,startupcirculationpump·····························································24

6.5Sootblowersystem·····························································································24

6.6Acceptanceandcheck·······················································································25

7BoilerAccessorialPipelineandAccessories····························································26

7.1Generalprovisions·····························································································26

7.2BoilerAccessorialPipeline····················································································26

7.3Start-upsystem································································································26

7.4Steamdrumwaterstagegauge·················································································26

7.5Safetyvalve····································································································27

7.6Acceptanceandcheck·························································································27

8Fluegasduct,AirDuct,CoalDustPipe,FuelChannelandAccessory·································28

V

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8.1Generalprovisions·····························································································28

8.2Fluegasduct,airduct,coaldustpipe,fuelchannelassemblyanderection····································28

8.3Fluegasduct,airduct,coaldustpipe,fuelchanneldeviceandaccessory·····································28

8.4Installationoffluegaswasteheatrecoveryunit.······························································30

8.5Leakagetestofthefluegas,airductandfurnacechamber···················································30

8.6Acceptanceandcheck·························································································31

9FuelOilSystemDevices·····················································································32

9.1Generalprovisions·····························································································32

9.2Oilunloadingdevice·······················································································32

9.3Oiltankandaccessories·······················································································32

9.4Fueloilservicingfacilities·····················································································32

9.5FueloilsystemPrerequisitebeforeoil-taking·································································33

9.6Acceptanceandcheck·························································································33

10BoilerAuxiliaryMachinery··················································································34

10.1Generalprovisions····························································································34

10.2Machineryerectionregulation················································································34

10.3Auxiliarymachineoilsystem·················································································38

10.4Coalmill······································································································38

10.5Fan········································································································40

10.6Coalfeeder·································································································41

10.7Aircompressor·····························································································42

10.8Deashingdevice·······························································································42

10.9Slagdraggingmachine························································································42

10.10Ashcoolermachine····························································································43

10.11Acceptanceandcheck·························································································43

11CoalHandlingPlant···························································································44

11.1Generalprovisions····························································································44

11.2Beltcoalconveyer····························································································44

11.3Coalunloadingdeviceforthebeltcoalconveyer·····························································47

11.4Magneticseparator····························································································48

11.5Coalcrusher···································································································48

11.6Coalscreen····································································································49

11.7Unloadingequipment·························································································50

11.8Coalyard······································································································51

11.9Acceptanceandcheck·························································································52

12FurnaceWallMasonry························································································54

12.1Generalprovisions····························································································54

12.2Non-stereotypedrefractoryabrasiveconstruction···························································56

12.3Finalizetheconstructionofrefractoryabrasives·····························································58

12.4Circulatingvulcanizedbedboileroven······································································59

12.5Acceptanceandcheck·······················································································60

13Start-upCommissioningandAcceptanceInspectionofboiler＆Unit······························61

13.1Generalprovisions························································································61

VI

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13.2Conditionandcheckforchemicalcleaningofboiler···············································61

13.3Conditionandcheckforrinseandblowwashofconduit··········································62

13.4Steamleakandsafetyvalueregulate·································································63

13.5Completesetstart-upforcommissioningoperation···············································63

13.6Acceptanceandcheck·····················································································64

AppendixAInstallationofdomesticwasteincinerationboiler·········································65

AppendixBInstallationofheatrecoveryboilerforgasturbine··············································68

AppendixCFabricatingandassemblingtolerancesofboilersteelstructure····························70

AppendixDInspectionitemsofconnectionofhighstrengthbolts···································77

AppendixEAllowabledeviationsofoveralldimensionsofboilerfoundation··························81

AppendixFReferencedataofcriticaltemperatureoffrequently-usedrolledsteelforerectionof

thermalpowerplantequipment·································································82

AppendixGAllowabledeviationsofouterdiameterandwallthicknessofheatingsurfacetubes··86

AppendixHManufactureandfittoleranceoftubulartypeairpreheater······························88

AppendixJStrengthcalculationrequirementsoftemporarypipelinesandblankplugsforHydraulic

Test····································································································90

AppendixKAllowabledeviationsofmanufacturingdimensionsofair/gas/coalducts···········91

AppendixMAllowabledeviationsoffoundationsforlargescalepowerequipment···················92

AppendixNStandardsfortracklaying········································································93

AppendixPShimareacalculationrequirements················································94

ExplanationofWordinginThisStandard········································································95

ListofQuotedStandards···························································································96

Addition:ExplanationofProvision·············································································97

VII

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1总则

1.0.1为了进一步提高电站锅炉安装施工水平，促进技术进步，适应科学发展，确保工程质量

和安全生产，特修订本部分。

1.0.2本部分适用于额定蒸汽压力9.8MPa及以上的电站锅炉机组施工。

1.0.3生活垃圾焚烧锅炉和燃气-蒸汽联合循环电站余热锅炉的施工应分别按本部分附录A、附

录B执行。

1.0.4进口机组的施工应执行合同的规定，如合同无明确规定，则应执行本部分。

1.0.5电站锅炉安装施工除应符合本部分外，尚应执行国家、行业现行有关标准规定。

1

DL/T5190.2—××××

2术语

2.0.1间距偏差distancedeviation

表示锅炉结构、设备部件设计中心线之间相对尺寸安装时允许的偏差（如柱子之间、横梁

之间、水冷壁与钢结构之间等）。

2.0.2对角线差diagonaldeviation

表示锅炉结构、设备部件外形设计方形或