CHE说明书英文.docx

CHE说明书英文.docx

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CHE说明书英文

CHE-5000Hydrogengenerator

（crudehydrogenreproduction）

Operationmanual

Drawupby_______

Checkedby_______

Auditedby_______

YangzhouCHEHydrogenEquipmentCo.,Ltd

12/04/2010

1.profile

1.1Thenatureanduseageofhydrogen.

Hydrogenisoneofthemostwidelyspreadedelementsinnature.Itexistsinthechemicalcompoundbythechemicalcombinationstatus.Itscontentinatmosphericlayerisverylow,onlyabout1ppm.Hydrogenisthelightestgas.Ithastheminimumviscosity,highthermalconductivity,chemicalactivity,Strongpermeabilityanddiffusion,（diffusioncoefficientis0.63cm2/s,aboutthreetimesthanmethane）.Itisastongereducingagent,itcanhavedifferentchemicalreactionswithmanymaterials.andcreatmanytypeofhydride.

Inflaming,burningandexplodingaremaincharadtersofhydrogen.Itcanbecomedeflagrablegasifitscontentis4-75%（inair）,4.65-93.9%（inoxygen）.ifitmeetsopenfireorthetemperatureisabove585℃,itwilldeflagrate.

Thehydrogenmadebypressurewaterelectrolysishasthefeaturesofhighpressue（1.6or2Mpa）,easytoconvery,highpurity（up99.8%）.Itcoundbeusedincommonoccasion,itcouldalsobepurified（99.999%）anddried（dewpointreaches-40～-90℃）tobeusedasthefuel,carriergas，deoxidationorprotectinggas,coolingmedium,itcanbewideusedinnationaleconomyareas.

1.2Theprincipleofhydrogengasproducedbyelectrolysisingwater.

Tomaketheelectrolytesolutiondecomposetoothersubstancebyuseofelectricenergyiscalledelectrolyticcell.

Anymaterialintheelectrolysisprocess,thechangeinthenumberobeysFaraday'slaw.TheFaraday'slawindicatesthatwhenelectrolyzing,Thequantityofmaterialseparateoutontheelectrodeareinproportiontothecurrentintensityandelectrifyingtime;Wheyusdsameelectricquantitytopassdifferentelectrolytesolution,theamountseparateoutonthetwopolesareinproportiontoelectrochemicalequivalent.And1gequivalentweightofanymaterialneeds1Faraday96500Coulomb（26.8amperehour）ofelectricquantity.hydrogengasproducedbyelectrolysisingwaterobeysFaradaylaw.Wheninstandardstatus,1molarhydrogenseparateoutbynegativeelectrodeneeds53.6A/helectricquantity.Aftercalculate,11m3hydrogen（0.5m3Oxygenbyproduct）needs2390Ahelectricquantityand0.9kgrawwater.

Theprocessofelectrolysisingwatertohydrogenandoxygen,itselectrodereactionis:

Cathode:

2H2O

+

2e

→

H2↑

+

2OH-

Anode:

2OH-

-

2e

→

H2O

+

1/2O2↑

Reaction:

2H2O

→

2H2↑

+

O2↑

Throughapairofelectrodeimmergedintheelectrolyte,Intheintervaltopreventthegaspermeabilityofthemembraneandconstituteawaterelectrolyticcell.Linktoacertainvoltage,（reachdecompositiontensionof1.23Vandthermalequilibriumtensionabove1.47V）ofdirectcurrent,waterwillelectrolyze.Accordingtocustomerrequirement,usemultigroupwaterelectrolyticcell,minishthevolumandincreasdtheoutput,itformswaterelectrolyserfilter-presssturcture.

Ourpressurewaterelectrolyseradoptsleftandrightmultiplestructure.IntermediateplateconnectespositiveDCpower.BothendsconnectesDCpowernegativeelectrode.Andadoptsbipolarplateandmembranegaskettoformmulti-electrolyticcell.Slotformedinthelowerpartofthesharedportandsewagedischargeintotheliquid,theupperbaseformingtheirownhydrogenandoxygengasliquidalkalichannel.Forhistoricalreasons,theelectrolyzerlongitudinalview,A,BSeriesdesigninthecenterlineoftheexportofoxygenbythesideofDCcopper（copperoxideside）,C,D,E,Fseries,thedesignofthecentrallinebyhydrogenexportDCcopperside（hydrogencopperside）.

Ourpressure-typewaterelectrolyzer,thecurrentstandardoperatingpressureare3.2MPa1.6MPa.IthasCompactstructure,safeoperationandlonglifecharacteristics,theelectrolyteusingforcedcirculation,consumptionofrawwaterelectrolysisautomaticallyaddedbythepiston,therelevantparametersforautomaticmonitoringandcontrol..Normalproductionby30%KOHaqueoussolutionaselectrolyte,bathtemperaturecontrolatabout85-90℃,Prolongdiaphragmgasketlifeandreducepowerconsumptionrequirements.

WaterelectrolysisHydrogenneedslowvoltage,highcurrentadjustableDCpowersupply.IndustrywithabalanceduseofthedualreactorstarControlledRectifier.Thiscircuithastwocharacteristics:

first,therectifiertransformerwithtwosetsofsub-polewindingandareconnectedintoastar,inordertoeliminatethetransformerDCmagnetization,ifthetwowindingsofoppositepolaritywiring.Second,inordertosolvethetwosub-polewindingtransformercurrentbalance,twotimesthemidpointofthebalancingpolewindingreactortogether.

2.basictechnicaldesignfeature

2.1Hydrogenoutput:

5m3/h

2.2Oxygenoutput:

2.5m3/h

2.3Hydrogenpurity:

≥99.99%（v/v）

2.4Oxygenpurity:

≥99.2%（v/v）

2.5Workingpressure:

≤0.8MPa

2.6Workingtemperature:

≤85℃

2.7Unitdirectcurrent:

≤4.9KW·h/m3H2

2.8Totaldirectcurrent:

400A

2.9Totaldirectpressure:

60V

3、Workingconditon

3.1.electrolyte:

30%KOHwatersolution

3.2.Rawwater:

3.2.1dosage5Kg/h

3.2.2waterquality:

3.2.2.1resistivity≥1.0×106ohm·centimeter

3.2.2.2ferricion<1mg/L

3.2.2.3chloridion<2mg/L

3.2.2.4dryresidue<7mg/L

3.2.2.5suspendedmatter<1mg/L

3.3.coolingwater

3.3.1temperature≤30℃

3.3.2dosage2m3/h

3.3.3pressure:

0.4～0.6MPa

3.3.4waterquality:

demineralizedwater

3.4.powersupply

3.4.1controllercabinetpowersupply:

triphasefour-wiresystemAC380V，50HZ，75KW

3.4.2siliconcontrolledrectifiercabinetCPS:

triphasefour-wiresystemAC380V，50HZ，40KVA

3.5.controledairsource

3.5.1pressure:

0.5～0.7MPa

3.5.2flowrate:

8m3/h

3.5.3dewpointlowerthanambienttemperaturebelow10℃

3.5.4nooil、nodust，oilcontent≤5mg/m3

4、processflowsandsubsystem

SystemDescription：

UndertheconditionsofForcedcirculationintheelectrolyte,electrolyticcellisconnectedtodirectcurrenthydrogenandoxygenproducedintheelectrolyzer,separators,gas-liquidseparation,theoutputofhydrogenandoxygencontinuouslysendsfromthesystem.Whenthewaterelectrolysishydrogengaspuritydoesnotmeetcustomerrequirementsordewpoint,theCompanyfurtherpurificationdryingsystemtowaterelectrolysishydrogenasrawmaterial,oxygencatalyst,adsorptiondrying,filteringdust,whichwasdriedwithhighpurityhydrogen.Automaticcontrolsystemsetthesystempressure,tanktemperature,separatorliquidlevelbalance,replenishtherawmaterialsconsumedbyelectrolysisofwater.Theoperatingparametersforautomaticmonitoringandcontrol.Accordingtodifferentuserneeds,providingpneumaticinstrumentcontrol,electricinstrumentcontrol,PLCprogrammablecontrol,PCcontrol,remotecommunications,andothermeansofcontrolandavarietyofanalyticalinstruments.

Hydrogenframeworkintegratesthemainhydrogenproductionsystemrunningequipment（suchasseparators,scrubbers,coolers,filters,pumps,lye,andcontrolandregulatingvalves,workingconditionsandtheremotetransmissionlinemeasurementinstrument）.

Purificationofdryingframeintegratedwithdryingsystempurificationmajorequipment（suchaspurifiers,dryers,aswellascontrolandregulatingvalves,measurementconditionsandRemoteInstrumentationonline）.

Powersystemdesignedaccordingtothespecialneedsofourcustomers,A,Bserieshydrogenpurificationframeintegratedwithdryingsystem,frametwointegratedbusdistributionvalve（easytohydrogenforthehydrogentankandaspecialusercontrol）,framethreeintegratedrawwatertank,basetanksandfillwaterpump（easyinstallation）.

Eachsetofhydrogenproductionsystemsareusuallyequippedwithcontrolcabinet,cabinetrectifier,rectifiertransformersandoxygeninhydrogen,hydrogenoxygenanalyzer,each（purification）dryingsystemwithcontrolcabinetandthedewpointinstrument（micro-oxygenanalyzer）.EachsetofA,Bseries（powersystem）isusuallyequippedwithcontrolcabinet,rectifiercabinet（includesrectifiertransformer）,powerdistributioncabinetandtheoxygeninhydrogen,hydrogenoxygen（whenequippedwithmicro-oxygenanalyzerpurified）,dewpointanalyzers.

CHE-5000Hydrogenproductionsystem，fromthedrawingcouldsee，ithastensubsystems.

4.1.electrolyteCirculatorysystemItsfunctionis：

4.1.1Itcreatshydrogen,oxygenandcaloriewhenelectrolyzefromelectrobath.

4.1.2ItWillcomplementtherawmaterialwaterfortheelectrolyzer;

4.1.3Electrolyticcellelectrolyticreactionontheregion,"mixing"toreducetheconcentrationpolarization,lowerpowerconsumption.Thesystemincludesthefollowingline（innerloop）

┌→hydrogenscrubber┐

Lyepump→lyefilter→electrobath┤├→Lyepump

└→oxygenscrubber┘

4.2.Hydrogensystem

Hydrogenfromthecathodesideoftheelectrolysisroom,bymeansoftheelectrolytecycleandtheTheproportionofpoorgas-liquid,Inthehydrogenseparationscrubberandelectrolytecreatsgas.Thelineas

┌dryingsystemelectrobath→hydrogenseparationscrubber→regulatingvalve┤└back-firereliefvalvedrain

Emptyingofhydrogenusedduringthestartandshutdowntime,abnormaloperationorpurityofnon-complianceandfailureemptying.

4.3.Oxygensystem

Oxygenasabyproductofwaterelectrolysishydrogenproductionunithasavalueofcomprehensiveutilization.Oxygensystemandthehydrogensystemhasastrongsymmetry.Devicesworkingpressureandtemperaturearealsotooxygensideofthetestpoints.

Itincludes:

┌Userstorageelectrobath→Oxygenseparationscrubber→┤

└Ordrain

drainofoxygenandhydrogenareforthesameconsiderations,userswhodonotuseoxygen,drainisnormallyopenstate.

4.4