seawater killing1Word文件下载.docx
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IssueDate:
PreparedBy:
VerifiedBy:
ReviewedBy:
ApprovedBy:
AcceptedBy:
2005-05-06
Name
Wangzhu
Signature
Shujiwei
Jiachangge
Xueji(CMEC)
Gaoyunda(HPCC3)
OsmanCelikdemir
(ICDAS)
1
2005-06-23
RevisionSummary
Rev.0Initialissue
Rev.1RevisedaccordingtoICDAScomments.
TableofContents
1Objective5
2Scopeofwork5
3Acceptancecriteria5
4References5
5Prerequisites5
6Precautions6
7Testequipmentandmaterials6
8Procedure6
9VerificationandPostRequisites9
10Attachment10
1Objective
Forpreventthemicro-organismgrowthinthecirculatingwatersystem,onesetofseawaterkillingbiologysystemisprovided.Thefeedpointisatwaterintakeandinletwaterroom.Theequipmentisintheseawatertreatmentroomneartheseawaterpumphouse.
Theinstallationofelectrolyzingseawaterproducesavailablechlorinebyutilizingspecialelectrodes.
2Scopeofwork
Includingthecommissioningofautomaticfilter,electrolysisgroup,dosingsystem,cleaningsystemandsoon.
Sodiumhypochloridegenerationsystemisasfollows:
Seawater→seawaterpump→automaticfilter→electrolysisgroup→Sodiumhypochloridesolutiontank→dosingpump→user.
Cleaningsystemofsodiumhypochloridegeneratorisasfollows:
Acidcleaningtank→Acidcleaningpump→electrolysisgroup→Acidcleaningtank
3Acceptancecriteria
№
Checkitems
Results
Methodandconcentrationofdosingsodiumhypochlorite:
1)Additcontinuouslywithaconcentrationof0.5ppm;
or
2)Addittwiceadaywithaconcentrationof3ppm,for1heachtime.
□
2
Thecapacityofthesodiumhypochloriteis2×
10kg/h.
4References
4.1Seawaterkillingbiologysystemdiagram(№:
F356S-H0501-01)
4.2SeawaterelectrochlorinationoperationandmaintenanceManual
5Prerequisites
5.1Civilworkandinstallationworkofseawaterkillingbiologysystemhasbeencompletedinaccordancewithsystemdiagram.
5.2Electricalequipments,i.e.switchboard,console,indictoranalysis,I&
Cmeasurementhas
beeninstalledandchecked,ensureoperationflexibility.
5.3Servicewatersystemshouldbeputinservicenormally.
5.4Communicationandlightinsiteareallready,ifnot,thetemporarymeasureshouldbetaken,workingpassageareunblocked,temporaryequipmentswhichusedininstallingperiodshouldberemoved.
5.5Analyticalreagentandanalyzerareallready.
5.6Recorderpaperusedincommissioningareallready.
5.7Electricalpersonnel,I&
Cpersonnelanderectorshouldbeonshift,soastodealwithdrawbackduringcommissioning.
5.8Watersamplingsystemshallbeinstalledattheoutletofcondenserbeforethewaterisdischargedintothesea.
5.9Drainchannelaroundacidtankforwaterusedtocleanspilledacid&
itsconnectiontotheexistingdrainage.
5.10Carbonsteelplatecoversofdrainagechannelmustbechangedwithacidproofplate.
5.11Acidintheacidtankwillbesenttoaacidproofcontainerwhichwillbedischargedonceinamonthto#3wastewaterbasin.
5.12Theladderwhichattheacidcleaningtankmustbeacidproofmaterial.
6Precautions
6.1Personnelwhoattendcommissioningshouldstudysafetyguideforchemicalandelectric,refertosection*ofsafetymanual.
6.2Electricequipment,chemicalsshouldbetakenchargebyskilledperson.
6.3Providedsomefirefightingequipments.
6.4Electricswitchesandelectricequipmentshouldhaveevidencesign.
6.5Personnelwhoattendcommissioningshouldbefamiliarwithsystem,preventfromimproperoperation.
6.6Necessaryindividualprotectivemeasureshouldbetaken.
7Testequipmentandmaterials
Preparedanalyzersandchemicalsasfollows:
Someanalyticalreagentsforexamplepotassiumdichromate,sodiumthiosulfateandsoon.
8Commissioningprocedure
8.1Inspectionofsingleequipment
8.1.1Inspectionofmotor-operatedvalve
Serialnumber
Description
10QJA11
/AT001/10UPQ0000
Automaticfilterdrainagemotor-operatedvalve
Normaloperation
8.1.2Inspectionofpumps
10QJA21/AP001/10UPQ0000
#1seawaterpump
Normalstartupandstop
10QJA22
/AP001/10UPQ0000
#2seawaterpump
10QJA51
/BN001/10UPQ0000
#1dosingpump
10QJA52
#2dosingpump
10QJA70
#1acidcleaningpump
/AN001/10UPQ0000
#1blower
#2blower
8.1.3InspectionofI&
Cequipment
Differentialpressureswitchofautomaticfilter
Feedbackcorrectly
DifferentialpressureswitchofYtypefilter
3
Pressureswitchof#1electrolyergroupinlet
4
Pressureswitchof#2electrolyergroupinlet
5
Flowswitchof#1electrolyergroupinlet
6
Flowswitchof#2electrolyergroupinlet
7
Temperatureswitchof#1electrolyergroupoutlet
8
Temperatureswitchof#2electrolyergroupoutlet
9
Levelswitchofsodiumhypochloritesolutiontank
10
Fanswitchofsodiumhypochloritesolutiontank
11
Directamperemeterof#1rectifieroutput
Meterindicatecorrectly
12
Directamperemeterof#2rectifieroutput
13
Directvoltagemeterof#1rectifieroutput
14
Directvoltagemeterof#2rectifieroutput
15
Temperatureof#1electrolyergroupoutletsolution
16
Temperatureof#2electrolyergroupoutletsolution
17
Inletseawaterflowratemeterof#1electrolyergroup
18
Inletseawaterflowratemeterof#2electrolyergroup
19
Flowratemeterofdosingpumpoutlet
20
Levelofsodiumhypochloritetank
8.1.4Sequencecontrolandalarmtest
Items
Automaticfilterhighdifferentialpressurealarmandself-backwash
Pressurehighalarmof#1electrolyergroupinletandstopsystem
Pressurehighalarmof#2electrolyergroupinletandstopsystem
Flowratelowalarmof#1electrolyergroupinletandstop#1rectifier
Flowratelowalarmof#2electrolyergroupinletandstop#2rectifier
Temperaturehighalarmof#1electrolyergroupoutlet
Temperaturehighalarmof#2electrolyergroupoutlet
Levelhighalarmofsodiumhypochloritesolutiontank
Levellowalarmofsodiumhypochloritesolutiontankandstopdosingpump
8.1.5Inspectionlistsofseawaterkillingbiologysystempriortocommissioning
Constructionofsystemiscompletedandaccordwithdesigndiagram
Singleequipmentcommissioningofallofpumps,valveandblowerarecompleted
PutI&
Cequipmentrelatedtosysteminservice,indicatecorrectly
Recirculatingcoolingwatersystemoperatenormal
Systemisflushedanddrainagewaterisclear.
8.2Startupprocedure
Step
Systemoperationbymanual
Startup#1blower
Puttheself-cleaningfilterinservice
Startup#1seawaterpump
Afterabout1minute,putrectifierequipmentinservice
Levelofsodiumhypochloritereachtointermediate,startup#1dosingpump
Systemoperatenormal
Startupthesecondsetofsystemasmentionedsteps
Systemshutdownbymanual
Adjusttheknob“Current”to“0”thenstoptherectifier
Stoptheseawaterpump
Stopthedosingpump
Stoptheblowerafter5minutes
Systemoperationbyautomaticmode
Systemshutdownbyautomaticmode
Duringnormaloperation,controlresidualchloridecontentofoutletcondenserabout0.1mg/L,relationbetweenresidualchloride&
dosageshallbedeterminedbydaily/weeklycheckingforayear.Calibrationcurvewillbesuppliedtotheowner.
Integratedtrialrunofsystemandsupervisesystemoperation
Refertosection3
9VerificationandPostRequisites
9.1Verification
Allworkcompleted.
Workareacleanedup.
Alldatarecorded.
Resultsmeetacceptancecriteria.
Workrequestsignedoff.
9.2DeficienciesIdentified
9.3ImprovementsifRequired
10Attachment
N/A
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