《電力建設施工技術規(guī)范 第2部分：鍋爐機組》DLT 5190.2

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J×××

備案號:JXXX-XXXXDL

中華人民共和國電力行業(yè)標準

DL/T5190.2—XXXX

P替代DL5190.2－2012

電力建設施工技術規(guī)范

第2部分：鍋爐機組

Technicalspecificationforthermal

powererectionandconstruction

Part2:Boilerunit

（征求意見稿）

****-**-**發(fā)布****-**-**實施

國家能源局發(fā)布

DL/T5190.2—××××

I

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目次

1總則.........................................................................1

2術語.........................................................................2

3基本規(guī)定.....................................................................4

3.1一般規(guī)定....................................................................................................................................4

3.2安裝與建筑的銜接....................................................................................................................5

3.3綠色施工與成品保護................................................................................................................5

4鍋爐構架及有關金屬結構.......................................................6

4.1一般規(guī)定....................................................................................................................................6

4.2鍋爐基礎檢查、劃線和墊鐵安裝...........................................................................................6

4.3鍋爐構架安裝和二次灌漿.......................................................................................................7

4.4工程驗收..................................................................................................................................11

5受熱面......................................................................12

5.1一般規(guī)定..................................................................................................................................12

5.2汽包、汽水分離器、聯箱.....................................................................................................13

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

5.4過熱器、再熱器、省煤器和減溫器.....................................................................................15

5.5鍋爐連通管道..........................................................................................................................16

5.6爐頂吊掛裝置..........................................................................................................................16

5.7鍋爐門孔安裝..........................................................................................................................16

5.8鍋爐密封部件..........................................................................................................................16

5.9循環(huán)流化床鍋爐受熱面設備.................................................................................................17

5.10水壓試驗................................................................................................................................19

5.11工程驗收................................................................................................................................19

6鍋爐附屬設備................................................................21

6.1一般規(guī)定..................................................................................................................................21

6.2空氣預熱器..............................................................................................................................21

6.3燃燒裝置..................................................................................................................................23

6.4爐水循環(huán)泵及啟動循環(huán)泵.....................................................................................................24

6.5吹灰系統(tǒng)..................................................................................................................................24

6.6工程驗收..................................................................................................................................25

7鍋爐附屬管道及附件..........................................................26

7.1一般規(guī)定..................................................................................................................................26

7.2鍋爐附屬管道..........................................................................................................................26

7.3啟動系統(tǒng)..................................................................................................................................26

7.4汽包水位計..............................................................................................................................26

7.5安全閥......................................................................................................................................27

7.6工程驗收..................................................................................................................................27

II

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8煙、風、燃（物）料管道及附屬設備.............................................28

8.1一般規(guī)定..................................................................................................................................28

8.2煙、風、燃（物）料管道的組合及安裝.............................................................................28

8.3煙、風、燃（物）料管道附件及裝置.................................................................................28

8.4煙氣余熱回收裝置安裝.........................................................................................................30

8.5爐膛及煙風系統(tǒng)密封性試驗.................................................................................................30

8.6工程驗收..................................................................................................................................31

9燃油系統(tǒng)設備................................................................32

9.1一般規(guī)定.................................................................................................................................32

9.2卸油裝置安裝.........................................................................................................................32

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

9.4燃油泵房設備.........................................................................................................................32

9.5燃油系統(tǒng)受油前應具備的條件............................................................................................33

9.6工程驗收.................................................................................................................................33

10鍋爐輔助機械...............................................................34

10.1一般規(guī)定...............................................................................................................................34

10.2輔機安裝通則.......................................................................................................................34

10.3輔機油系統(tǒng)...........................................................................................................................38

10.4磨煤機...................................................................................................................................38

10.5風機.......................................................................................................................................40

10.6給煤機...................................................................................................................................41

10.7空氣壓縮機...........................................................................................................................42

10.8除灰設備...............................................................................................................................42

10.9撈渣機...................................................................................................................................42

10.10冷渣器設備.........................................................................................................................43

10.11工程驗收.............................................................................................................................43

11輸煤設備...................................................................44

11.1一般規(guī)定...............................................................................................................................44

11.2膠帶輸送機...................................................................................................................44

11.3膠帶輸送機的卸煤設備.......................................................................................................47

11.4磁鐵分離器...................................................................................................................48

11.5碎煤機...........................................................................................................................48

11.6篩煤機...........................................................................................................................49

11.7卸車設備...............................................................................................................................50

11.8煤場設備...............................................................................................................................51

11.9工程驗收...............................................................................................................................52

12爐墻砌筑...................................................................54

12.1一般規(guī)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循環(huán)流化床鍋爐烘爐...........................................................................................................59

12.5工程驗收...............................................................................................................................60

III

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13鍋爐機組啟動試運及驗收.....................................................61

13.1一般規(guī)定...............................................................................................................................61

13.2鍋爐化學清洗前及清洗后檢查..........................................................................................61

13.3鍋爐機組蒸汽吹管前及吹管后檢查..................................................................................62

13.4蒸汽嚴密性試驗及安全閥調整..........................................................................................63

13.5整套啟動試運中的檢查.......................................................................................................63

13.6工程驗收...............................................................................................................................64

附錄A生活垃圾焚燒鍋爐安裝.....................................................65

附錄B燃氣—蒸汽聯合循環(huán)電站余熱鍋爐安裝.......................................68

附錄C鍋爐鋼結構的制造和裝配公差...............................................70

附錄D高強度螺栓連接工程檢驗項目...............................................77

附錄E鍋爐基礎軸線與外形尺寸允許偏差...........................................81

附錄F火電安裝中常用鋼材的臨界溫度.............................................82

附錄G受熱面管的外徑和壁厚的允許偏差...........................................86

附錄H管式空氣預熱器的制造和裝配公差...........................................87

附錄J水壓試驗臨時管路與堵頭的強度計算要求....................................89

附錄K煙風道、燃（物）料管道制造尺寸的允許偏差................................90

附錄M大型動力設備基礎的允許偏差...............................................91

附錄N軌道鋪設要求.............................................................92

附錄P墊鐵面積計算要求.........................................................93

標準用詞說明...................................................................94

引用標準名錄...................................................................94

條文說明.......................................................................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

DL/T5190.2—××××

1總則

1.0.1為了進一步提高電站鍋爐安裝施工水平，促進技術進步，適應科學發(fā)展，確保工程質量

和安全生產，特修訂本部分。

1.0.2本部分適用于額定蒸汽壓力9.8MPa及以上的電站鍋爐機組施工。

1.0.3生活垃圾焚燒鍋爐和燃氣-蒸汽聯合循環(huán)電站余熱鍋爐的施工應分別按本部分附錄A、附

錄B執(zhí)行。

1.0.4進口機組的施工應執(zhí)行合同的規(guī)定，如合同無明確規(guī)定，則應執(zhí)行本部分。

1.0.5電站鍋爐安裝施工除應符合本部分外，尚應執(zhí)行國家、行業(yè)現行有關標準規(guī)定。

1

DL/T5190.2—××××

2術語

2.0.1間距偏差distancedeviation

表示鍋爐結構、設備部件設計中心線之間相對尺寸安裝時允許的偏差（如柱子之間、橫梁

之間、水冷壁與鋼結構之間等）。

2.0.2對角線差diagonaldeviation

表示鍋爐結構、設備部件外形設計方形或