Lub strip magnesium anode yog ua los ntawm cov ntshiab magnesium los yog MG-Mn alloy txias dov. Qhov qhib-circuit peev xwm (Cu/CuSO4) yog -1.7V, thiab qhov hnyav ntawm ib chav tsev ntev yog 0.37kg/m. Nws yog tsim rau siv nyob rau hauv ib puag ncig nrog resistivity Ntau tshaj los yog sib npaug rau 100Ω·m. Cov zis tam sim no ntawm magnesium band yog 10mA / m hauv av nrog resistivity ntawm 50Ω·m thiab 3mA / m hauv dej tshiab nrog resistivity ntawm 150Ω·m. Qhov chaw saum npoo ntawm ribbon magnesium anode ntawm tib qhov loj yog ntau dua li ntawm cov ingot magnesium anode. Piv txwv li, thaj tsam ntawm 11kg magnesium ingot yog 0.27m2, thaum 11kg magnesium ribbon ntev yog 30m, thiab thaj tsam ntawm 1.9m2 yog 7 npaug ntawm qhov qub. Lub anode tso zis tam sim no yog proportional rau qhov chaw saum npoo thiab inversely proportional rau cov resistivity. Anode zoo txiav txim siab lub neej anode. LUB SIJ HAWM TXOJ CAI YUAV TSUM TAU TXAIS HAUJ LWM HAUJ LWM HAUJ LWM, THIAB WINDING ntawm magnesium daim kab xev ntawm kev hla los yog casing yeeb nkab yuav tsum tau txiav txim siab kom muaj kev pabcuam lub neej piv rau cov yeeb nkab lub neej. Yog tias tus qauv tsim lub neej yog 20 xyoo thiab cov av tiv thaiv hauv cheeb tsam tsawg, nws tsis pom zoo kom siv magnesium band, tab sis spindle magnesium anode.
The conventional design of the cross section or casing pipe is usually installed with magnesium tape winding method. The sectional size of the banded magnesium anode used in the Shaoxing natural gas utilization project is (19±0.5)mm×(9.5±0.5)mm. Each steel pipe is wound with two banded magnesium anodes, which are symmetrically distributed on both sides of the pipeline. A binding belt is set every 1-2m, and the material is nylon belt. The cable and magnesium anode are welded by filling tin. The insulation layer adopts composite insulation structure, which is composed of epoxy resin, electrical adhesive tape, plastic adhesive tape, heat shrinkable sleeve and anti-corrosion adhesive tape from inside to outside. Each layer of adhesive tape is overlapped when winding. The cable and the pipe are connected by double-point thermite welding. The cable runs smoothly and has a surplus. The distance between the two solder joints is >10cm, qhov loj ntawm cov txheej tawg yog 3cm × 3cm, thiab qhov loj ntawm kev kho yog ntau dua 5cm × 5cm. Txawm li cas los xij, hauv kev tsim kho tiag tiag, nws tsis yooj yim rau kev khiav lag luam txoj kev siv magnesium siv winding, tshwj xeeb tshaj yog thaum lub raj xa dej nyob rau hauv qhov chaw hla tau rub rov qab, lub qhov txhab magnesium siv yuav ua rau kom muaj zog, thiab txoj siv magnesium yooj yim poob. tawm thiab tawg. Yog li ntawd, rau lub raj xa dej nyob rau hauv seem hla, nws raug nquahu kom tsis txhob siv magnesium siv, tab sis ntxiv ingot magnesium anodes ntawm lub qhov hluav taws xob thiab cov ntsiab lus nkag, thiab teeb tsa cov pawg sim kom tsis tu ncua kev siv anode. Rau cov kav dej hauv lub casing, nws raug pom zoo tias yuav tsum tau muab cov kab xev magnesium txuas mus rau cov yeeb nkab tsis tas yuav txo cov magnesium daim kab xev es tsis txhob winding, thiaj li pab txhawb cov yeeb nkab kom nkag mus rau hauv lub casing yam tsis ua rau magnesium daim kab xev.
