Variations hauv Zinc Requirements thoob PV Environments
Nyob rau hauv chav kawm ntawm kev tshuaj xyuas cov ntaub ntawv kev ua tau zoo los ntawm kev siv hluav taws xob- nplai thiab ru tsev arrays hla hauv Suav teb, cov cheeb tsam Esxias Qab Teb Hnub Tuaj thiab cov kev teeb tsa hauv ntug dej hiav txwv, cov qauv zoo ib yam tshwm sim: ib qho zinc tuab tsis tshua muaj txiaj ntsig zoo rau txhua qhov chaw sib npaug. Inland tsau- qaij ua liaj ua teb hauv qis- corrosivity cua tuaj yeem ua haujlwm tau zoo nrog cov txheej txheem nruab nrab, thaum ntug dej hiav txwv lossis siab -cov av noo nyob rau saum cov vaj tse xav tau cov txheej tuab tuab heev los tiv thaiv cov zinc poob sai. Kev soj ntsuam teb los ntawm tej yaam num ze Gulf of Thailand thiab raws ntug dej hiav txwv Suav qhia tias underestimating lub zos corrosivity feem ntau ua rau ntxov ntxov dawb xeb los yog puag- steel raug zoo ua ntej 25-xyoo tsim lub neej ntawm cov modules.
Qhov cuam tshuam ASTM Parameters rau cov khoom siv thiab cov ntawv
Ob qhov ASTM specifications tswj feem ntau PV mounting steel. ASTM A123 / A123M siv rau kev tsim cov qauv duab, daim hlau thiab cov kav dej; nws qhov tsawg kawg nkaus nruab nrab txheej tuab yog txuas rau steel thickness thiab qeb-feem ntau 100 μm rau cov qauv duab tuab dua 6.4 hli thiab 75 μm rau ntau cov yeeb nkab thiab cov kav dej. ASTM A653 / A653M npog tsis tu ncua galvanized ntawv thiab coil, qhia los ntawm txheej txheej: G90 (Z275) muab roughly 19-21 μm ib sab, thaum hnyav hnyav xws li G115 lossis G185 nce daim duab ntawd. Rau feem ntau cov ntawv thov PV nrhiav kev sib raug zoo nrog IEC 62548 kev taw qhia, cov kws kho mob feem ntau qhia qhov tsawg kawg nkaus ntawm 75-85 μm hauv qab A123 lossis tsawg kawg Z275 hauv A653, tshwj xeeb tshaj yog rau cov cheeb tsam weld thiab txiav npoo uas yuav tsum khaws cov seem seem tuab tom qab tsim.
Kev Pabcuam Lub Neej Txuas rau Txheej Thickness
Zinc corrosion tus nqi luam tawm raws li ISO 9223 kev faib tawm qhov system muab cov kev sib txuas ntawm cov tuab thiab ntev. Hauv cov chaw nyob deb nroog lossis me me C2-C3 cov huab cua txhua xyoo zinc poob feem ntau tsuas yog 0.5-1.5 μm, tso cai rau G90 / Z275 txheej kom xa 20-50 xyoo kev tiv thaiv. Hauv kev lag luam lossis hauv nroog, tus nqi nce mus rau 1.5-5 μm ib xyoo, thiab nyob rau hauv ntug dej hiav txwv C4-C5 ib puag ncig nws tuaj yeem ncav cuag 2-4 μm lossis ntau dua. Yog li ntawd, txheej txheej 85-100 μm dhau los ua qhov kev xaiv tiag tiag yog tias qhov kev pabcuam 25-40 xyoo yuav tsum tsis muaj qhov nruab nrab rov ua dua. Ntsev- cov txiaj ntsig tshuaj tsuag hauv qab ASTM B117 tsis tu ncua qhia tias cov tuab tuab dua- cov txheej txheej dip ncua qhov tshwm sim ntawm xeb liab nyob deb dhau qhov kev ua tau zoo ntawm cov txheej txheem nyias electroplated, lees paub qhov kev sib raug zoo.
Kev Taw Qhia Kev Xaiv Tswv Yim
Txoj hauv kev txhim khu kev qha tshaj plaws yog pib nrog lub vev xaib -kev ntsuas corrosivity tshwj xeeb es tsis yog qhov tsawg kawg nkaus. Rau sab hauv lossis nruab nrab- cov av noo nyob hauv tsev, Z275 lossis 75-85 μm A123 txheej yog nquag txaus. Cov chaw ua liaj ua teb hauv ntug dej hiav txwv, siab- cov av muaj av noo thiab cov chaw uas muaj ntsev ntau heev- cua daj cua dub tau txais txiaj ntsig los ntawm 85–100 μm lossis hnyav dua, qee zaum ntxiv los ntawm Zn-Al-Mg alloy coatings uas tau pom ntau yam -fold kev txhim kho hauv marine. Kev txheeb xyuas yuav tsum suav nrog kev ntsuas qhov sib nqus ntawm ntau lub ntsiab lus tom qab tsim, ua raws li cov qauv kev pom zoo xws li cov uas tau teev tseg hauv GB / T 4956 lossis sib npaug ASTM xyaum.
Sib piv cov khoom rau txawv qhov project Profiles
Peb ntau lawm ntau yam ntawmsiab-zoo kub-dip galvanized steel kaujthiab cov ntu kev teeb tsa yog txhob txwm teeb tsa kom npog cov kev xav tau qib no. Chev tuaj yeem muab tau rau Z275 thiab cov qauv hnyav dua haum rau txias - tsim purlins thiab cov ntsia hlau, thaum cov tswv cuab tsim ua tau raws li A123 thickness minima tsim nyog rau hauv av- mount posts thiab hnyav dua brackets. Cov khoom siv tib yam kuj txhawb nqa lub teeb yuagru tsev mounting profilessiv qhov twg ru tsev load txwv thov thinner tsis tau txaus coated seem.
Kauj ruam tom ntej rau Project Specification
Yog tias koj tab tom ua tiav cov txheej txheem txheej txheem rau ib qho array yav tom ntej, kev sib tham luv luv ntawm qhov chaw corrosivity thiab structural qeb yuav tso cai rau kev sib piv ntawm cov thickness thiab alloy system. Thovtiv tauj peb pab neeg technicallos tshuaj xyuas cov kev xaiv txheej txheej tiv thaiv koj qhov project qhov chaw thiab tsim lub hom phiaj lub neej.
