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1、CALCULATIONOFSACRIFICIALANODESINBALLASTTANKS3000002CP4/41.GENERALDESCRIPTION說明1.1Thealuminumalloysacrificialanodeswithboltingtypeshallbefittedinwaterballasttanksincludingpeaktanks.ThedesignofcathodicprotectionbymeansofsacrificialanoderefertothestandardGB8841-88.本船壓載水艙包括艏艉
2、尖艙內(nèi)將安裝螺栓連接型式的鋁合金犧牲陽極，用犧牲陽極作陰極保護的設(shè)計參照GB8841-88標準。1.2Thecalculationofaluminumanodesforwaterballasttankstobeaccordingtothecontractspecificationasfollowingdesigncondition.Lifetime:five(5)yearsBallastratio:50%Meancurrentdensity:5.4mA/m2壓載水艙鋁合金陽極根據(jù)“建造說明書”按如下設(shè)計條件計算：使用壽命5年壓載率50%保
3、護電流密度5.4mA/m21.3Theproductsofaluminumanodeswith5yearslifetimeshouldbeaccordingtomanufacturer’srecommendationandtheBuilder’spractice.使用壽命為5年的鋁陽極可以采用制造廠商推薦的或建造廠成熟的產(chǎn)品。2.CHEMICALCOMPONENTOFAL-ANODES(%)鋁合金犧牲陽極的化學(xué)成分TYPE種類COMPOSITION化學(xué)成分ZnInCdImpurityMax雜質(zhì)，不大于AlSiFeCuA11GB/T4948
4、-2002鋁-鋅-銦-鎘2.5~4.50.018~0.0500.005~0.0200.100.150.01Excess余量3.THEAL-ANODESPARAMETER選用鋁合金犧牲陽極的參數(shù)STANDARD標準號TYPE型號CURRENT（If）發(fā)生電流值（If）CURRENTCAP.實際電容量SIZE尺寸NETWT.凈重(kg/Pec.?)GROSSWT.毛量(kg/塊?)GB/T4948-2002A11T-635mA2400Ah/kg495×140×~559.0~104.QUANTITYOFANODESCALCULATION犧牲陽極
5、用量計算ITEM保護部位TYPE型號N.WEIGHTCURRENTPRO.AREAPRO.CUR.TOTALCUR.T.QUA.P.QUA.凈重量電流值保護面積保護電流總電流需要量實配Kg/pec.mAm2mA/m2mAPec.塊Pec.塊AFTPEAKTK.(W.B.)艉尖艙（壓載水艙）A11T96354263.605.423023.4418.118NO.10DB.W.B.TK.NO.10底壓載水艙A11T96351804.005.49741.607.78NO.9W.B.TK.(P&S)NO.9壓載水艙（左/右）A11T96354610
6、.405.424896.1619.620/20NO.8W.B.TK.(P&S)NO.8壓載水艙（左/右）A11T96355108.755.427587.2521.722/22NO.7W.B.TK.(S)NO.7壓載水艙（右）A11T96357298.125.439409.8631.032CALCULATIONOFSACRIFICIALANODESINBALLASTTANKS3000002CP4/4NO.7W.B.TK.(PL)NO.7壓載水艙（左下）A11T96354661.005.425169.4019.820NO.7W.B.TK.(P
7、U)NO.7壓載水艙（左上）A11T96352725.565.414718.0211.612NO.6W.B.TK.(P&S)NO.6壓載水艙（左/右）A11T96357386.595.439887.5831.432/32NO.5W.B.TK.(P&S)NO.5壓載水艙（左/右）A11T96357386.595.439887.5831.432/32NO.4W.B.TK.(P&S)NO.4壓載水艙（左/右）A11T96357386.595.439887.5831.432/32NO.3W.B.TK.(P&S)NO.3壓載水艙（左/右）A11T9
8、6357644.555.441280.5532.533/33NO.2W.B.TK.(P&S)NO.2壓載水艙（左/右）A11T96357316.735.439510.3231.132/32NO
