DL 51906 电力建设施工技术规范 第6部分 水处理及制氢设备和系统英文.docx

DL 51906 电力建设施工技术规范 第6部分 水处理及制氢设备和系统英文.docx

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DL51906电力建设施工技术规范第6部分水处理及制氢设备和系统英文

DL5190.6-2012

TechnicalSpecificationforThermalPowerErectionandConstruction

Part6:

WaterTreatmentandHydrogenGenerationEquipmentSystem

Contents

1Generalprovisions.............................................................4

2Terms...................................................................................4

3Basicrequirement..............................................................6

3.1Generalrequirement........................................................6

3.2Constructionengineering.................................................7

3.3Inspectionandstorageofequipmentandmaterials.........8

3.4Leaktestofequipmentandsystem..................................9

3.5GreenConstruction.........................................................10

4Waterpretreatmentequipment.........................................11

4.1Conventionalequipment..................................................11

4.2Ultrafiltrationandmicrofiltrationequipment..................15

4.3Wastewaterdisposalequipment.......................................16

5Waterpre-demineralizationequipment............................17

5.1Reverseosmosisunit........................................................17

5.2Seawaterdesalinationandevaporationequipmentand

thermalcompressionandjettingequipment.....................20

5.3Stainlesssteelequipmentandpipelineprotection............22

6Boilerfeedwatertreatmentequipment.............................23

6.1Ionexchangeequipment..................................................23

6.2Carbondioxideremovaldevice........................................25

6.3Electricdeionizationdevice..............................................25

7Condensatedwaterprocessingequipment........................26

7.1Generalrequirement.........................................................26

7.2Filters................................................................................27

7.3Ionexchangersandregenerationdevice...........................27

8Coolingwatertreatmentequipment...................................27

8.1Sterilizationdevice............................................................27

8.2Scaleandrustinhibitiondevice.........................................29

8.3Makeupwaterandby-passflowtreatmentequipment......29

9Samplinganddosingsystem................................................30

10Boxes,drumsandtanks......................................................33

11Rotatingmachineryandotherequipment.........................34

11.1Hydratedlimemachinesandlimecrane...........................34

11.2Watertreatmentpumps......................................................34

11.3Aircompressorsandaccessoried.......................................37

11.4Agitators.............................................................................39

12Specialpipingandvalves......................................................39

12.1Generalrequirement...........................................................39

12.2Specialmediapipeline........................................................40

12.3Pipemadeofspecialmaterials............................................41

12.4Specialvalves.....................................................................45

13Anticorrosiveconstruction....................................................45

13.1Generalrequirement...........................................................45

13.2Anticorrosiveconstructionprocess.....................................46

13.3Constructionofplastics.......................................................49

14Startupandadjustmentofwatertreatmentsystem............51

14.1Generalrequirement............................................................51

14.2Waterpretreatmentandpre-demineralizationsystem.........51

14.3Desalinationsystem............................................................54

14.4Condensatetreatmentsystem..............................................54

15Hydrogenstation.....................................................................55

15.1Generalrequirement.............................................................55

15.2Inspectionandinstallationofequipmentinhydrogen..........56

15.3Inspectionandinstallationofpipinginhydrogen................57

15.4Startupandadjustmentofhydrogengenerationequipment..60

1Generalprovisions

1.0.1Thistechnicalspecificationiscompiledforconstructionofwatertreatmentandhydrogengenerationequipment.

1.0.2Thispartapplytonew-build,extensionandrebuildwatertreatmentandhydrogengenerationequipmentandsystemof1000MWandunder1000MWthermalpowerplant,cyclegas-steamturbineunits,conventionalislandofnuclearpowerstationandBOPsystem.

1.0.3Watertreatmentandhydrogengenerationequipmentandsystemconstructionmeetthepartandrelevantprovisionsofnationalstandardsandcurrentstandards.

2Terms

2.0.1Waterpretreatment

Processingwaterbyprecipitation,coagulationandclarification.

2.0.2Clarification

Producewaterwithlittleparticlesbyprecipitationofsuspendedparticlesinlargetank.

2.0.3Filtration

Removeparticlesbypassingfitterstrainer.

2.0.4Ultrafiltration

Ultrafiltrationisinbetweenmicrofiltrationandnanofiltration.Thetypesincludevacuumandpressure.

2.0.5Microfiltration

Microfiltrationisinbetweengeneralfilterandultrafiltration,filteringrecisionbetween0.1μmand1.0μm.

2.0.6Reverseosmosis

Wedoforciblyhigherthantheosmoticpressureofthesolutionatthesideofthemembrane,thatisthesideofrawwater,allowingwaterandsomecomponentsselectivetransmission,andothermaterialcan'tthroughthemembrane.

2.0.7Recycledwater

Wastewatercanbeusedafterpropertreatment,ofwhichqualityisinaccordancewithstandard.

2.0.8Wastewater

Thewaterdischargedwhichfrompowerplant,thewatercanbeusedaftertreatment.

2.0.9Tightnesstestwithvacuumbox

Themethodofcheckingleakforweldingofwatertankbaseplatewithvacuumbox.

2.0.10Lowtemperaturemulti-effectdistillationunit（LT-MED）

UsethespraAniongtechnologyoflowtemperaturehorizontaltubefordistillation,ofwhichmaximumtemperatureofsaltwaterlessthan70℃.

2.0.11Desalination

Theprocessofremovingthesaltinthewater,desaltedwatercanbeusedofdrinkingwater,productionwatersupplyandcoolingwater.

2.0.12Electrodeionization

Inthefreshwatercompartmentofelectrodialyzerfillinganionandcationmixedionexchangeresin,combiningelectrodialysisandionexchange,removeioninwater,makeuseofpolarizationphenomenonintheprocessofelectrodialysis,doelectrochemicalregenerationforionexchangeresin.

2.0.13Ionexchange

Theprocessofsomeanionorcationinwaterthroughthefilterbed.

2.0.14Perforated-steelandplasticcompositepipe

Perforated-steelandplasticcompositepipeisreinforcementofporoussheetsteelpipethroughhydrogenarcwelding.Anewcompositepipeoftwo-sidedcompositethermoplasticplastics.

2.0.15Electricalfusionbellandspigotconnection

Aconnectionmethodthatconnectedpipeinsertedintomuzzlebellandcontactareaofmuzzlebelltogetherbyfusionwelding,makeuseofGreatheatproducedbyelectricalheatingelementinsertedintoinnerwallofmuzzlebellwithelectricity.

2.0.16Stainlesssteellinedcompositesteelpipe

Adoptingcompoundtechnology,steelpipeusedforfluidtransport,suchasweldedpipe,seamlesspipe,ect,theirinnerwallliningwithstainlesssteelanticorrosivelayer,whichmakeupCompositestructurewallpipe.

2.0.17Electrolysisthesaltsolution

ElectrolysisIndustrialsodiumchloridesolution,ChemicalMethodsthatproducesodiumhypochloriteandchlorine.

3Basicrequirement

3.1GeneralRequirement

Thepartincludetherequirementsofwatertreatmentandhydrogengenerationequipmentandsystem,involvesmechanicalinstallation,pipeinstallation,weldingconstruction,monitoringinstrumentandprogrammedcontrolect,itshouldmeettherelevantprovisionsofnationalstandardsandcurrentstandards.

Themainequipmentmanufacturersshouldhavemanufacturinglicenceissuedbystate,province（autonomousregion）,Direct-controlledmunicipalityorthestateadministrativesupervisionandadministrationdepartment.Qualityacceptanceofequipmentmanufactureonthebasisofthecurrentrelevantstandardsofthestateorindustry,ifnorulers,inaccordancewiththecontract.

Allkindsofequipmentconstructionaccordingtorequirementsofdesignandtechnicaldocumentationoftheproduct.Tomodifythedesignorusealternativeequipmentsorthematerials,itshouldbeapprovedbydesignedunits,supervisorandconstructionunits,andthanitcanbeimplemented.

Non-standardequipmentconstructionwhichisnotincludedinthispartshallbeinaccordancewiththecontractagreementordesignrequirements.Forimportedequipment,weshouldformulatetechnicalmeasuresforconstructionaccordingtothecontractagreementorrelevanttechnicalrequirements.

Orderingcompletesetofdevicesshouldsigntechnicalagreementandacceptanceasanattachmentofthecontractandthebasisofconstructionacceptance.

ThereareSupervisionandinspectionreportsbeforeinstallingcompletesetofdevices.

3.1.7Liquidlevelmeasurementandanalysismeterinstallationafterrinsthesystemandcleanandqualified.

Drainagepipelineofthecontainershouldbearrangedinthetrench,itsdirectionshouldbethesamewithdraindirections.

3.1.9Dosingroomshouldbeequippedwiththerinsewater.

3.1.10StoringorconveAniongequipmentfora