Nrog rau kev ua tiav cov lus qhia ua haujlwm kawg los ntawm kev ua haujlwm thiab kev saib xyuas cov neeg ua haujlwm, Jiangsu Xeev thawj lub chaw nres tsheb hauv lub koos pij tawj, 110 kV fais fab kis thiab kev hloov pauv ntawm Yangkou Chaw nres nkoj, Rudong County, uas suav nrog kev hloov pauv siab heev, disconnectors, xob laim ntes, lub tshuab nqus tsev. Circuit Court breakers, tso tawm fuses thiab transformers, ua tiav kev xa hluav taws xob hla hiav txwv. Nyob rau hauv cov nqe lus ntawm qhov kev pab them nqi, lub substation no tuaj yeem hais tias yog 110 kV substation nrog cov hluav taws xob tsawg tshaj plaws hauv lub xeev, thiab nws cov khoom siv tau txwv rau plaub lub tuam txhab LNG (liquefied natural gas) ntawm cov kob. Raws li kev txhawb nqa substation rau Sunshine Island, qhov chaw nres tsheb tuaj yeem ua tau raws li qhov xav tau ntawm lub zog ntawm cov kob ntawm kaum tawm lab tons ntawm liquefied natural gas txais chaw nres tsheb tom qab nws muab tso rau hauv kev ua haujlwm.
Sunshine Island, thaum xub thawj siab ib muag, lub npe yuav tshwm sim sai sai hauv koj lub siab, ntug hiav txwv dej, nthwv dej, cacti ... Txawm li cas los xij, cov kob no nyob ntawm 13 km ntawm ntug dej hiav txwv ntawm Changsha Town, Rudong County, tsis muaj dab tsi cuam tshuam nrog kev ncig xyuas. Nws yog ib lub zog kob thiab thawj cov kob dag tsim los ntawm reclamation nyob rau hauv Jiangsu xeev. Nws muaj qhov zoo tshaj plaws hauv dej tob rau cov roj liquefied natural gas ships nkag mus rau hauv qhov chaw nres nkoj hauv lub teb chaws, thiab offshore terminal ntawm cov kob kuj zoo heev rau kev thauj mus los thiab khaws cia.
Nyob rau hauv xyoo tas los no, nyob rau hauv teb rau lub teb chaws lub hom phiaj ntawm kev ua kom ceev kev tsim kho ntawm ib tug natural gas ntau lawm, muab, cia thiab kev muag khoom, tsoom fwv hauv zos tau mob siab rau tsim lub liquefied natural gas kev lag luam nyob rau hauv Sunshine Island thiab ua rau lub teb chaws loj tshaj plaws offshore LNG. chaw nres tsheb txais. Tam sim no, Sunshine Island txhua xyoo LNG thauj khoom thiab thauj khoom ntim tau mus txog 7 lab tons, uas tuaj yeem txhawb nqa ib feem peb ntawm cov khoom siv roj hauv lub xeev Jiangsu thoob plaws xyoo. Tam sim no nws yog lub hauv paus loj tshaj plaws thiab muaj kev nyab xeeb tshaj plaws huv lub zog hauv cheeb tsam Yangtze River Delta. Ntxiv rau qhov twb tau tsim Sinopec LNG chaw nres tsheb thauj khoom thiab thauj khoom, peb qhov chaw nres tsheb tau txais txiaj ntsig ntawm Guoxin, GCL thiab Tuam Tshoj cov peev txheej tam sim no nyob rau hauv tag nrho viav vias. Nws tau nkag siab tias thaum kawg ntawm "14th Tsib Xyoo Plan", lub peev xwm thauj khoom thiab thauj khoom ntawm cov kob me me no yuav ncav cuag 25 txog 30 lab tons hauv ib xyoos, dhau los ua qhov kev sib tshuam tseem ceeb rau kuv lub teb chaws sab hnub poob mus rau sab hnub tuaj. , sab qaum teb-rau-sab qab teb gas kis thiab dej hiav txwv tsaws. Tus yuam sij rau LNG cia, kev ua haujlwm thiab kev thauj mus los yog nyob rau hauv qhov chaw ruaj khov uas tsis muaj qhov kub thiab txias, uas yuav tsum muaj qhov kub thiab txias hauv lub tank liquefied natural gas cia cia nyob ib ncig ntawm qhov qis tshaj 160 degree, thiab qhov kub qis tsis tuaj yeem sib cais los ntawm lub zog hluav taws xob txuas ntxiv thiab ruaj khov. tub yees thiab cia txias. Thawj 20 kV cable fais fab mov muaj peev xwm ntawm Sunshine Island tsis tuaj yeem ua tau raws li lub zog xav tau rau kev lag luam loj loj.
Kev ua haujlwm ntawm 110 kV Sunshine Island Substation, uas suav nrog kev hloov pauv qib siab, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov hluav taws xob hluav taws xob, lub tshuab nqus hluav taws xob, cov fuses tawm thiab cov hloov pauv, tau muab cov kob uas muaj zog thiab muaj zog "lub siab lub zog". Lub substation npog tag nrho thaj tsam ntawm 1,850 square meters, uas tsuas yog ib nrab ntawm qhov loj ntawm tib hom substations, tab sis "me me tab sis ua tiav". Tom qab ua haujlwm ntawm Sunshine Island Substation, nws yuav ua haujlwm zoo dua los ua kom lub zog ntawm Jiangsu natural gas thaum lub caij ntuj no lub caij ntuj no.
Kev tsim kho ntawm lub substation ntawm cov kob yuav tsum muaj kev tiv thaiv corrosion ntau dua thiab kev tsim kho zoo ntawm cov ntaub ntawv. Sunshine Island belongs rau marine atmospheric ib puag ncig. Qhov nruab nrab cua ceev nyob rau hauv hiav txwv cheeb tsam ze ntawm cov kob yog 5.2 meters ib ob nyob rau hauv lub xyoo. Qhov siab tshaj plaws cua ceev txhua hnub tshaj li qib 6 rau 60 hnub. Qhov siab tshaj plaws ib puag ncig salinity yog 29.6‰ thiab qhov qis tshaj yog 23.7‰ (qhov salinity ntawm cov dej hiav txwv dav dav yog 35‰), thiab nws feem ntau nrog los nag hnyav. Nyob rau hauv ib lo lus, nws muaj zog cua thiab hnyav ntsev tsuag corrosion. Thaum pib ntawm kev tsim, Sunshine Island Substation tau txais qib siab tshaj plaws ntawm kev tiv thaiv corrosion C5M * los xyuas kom meej tias lub substation yuav tsis raug cuam tshuam los ntawm ib puag ncig hnyav hauv 40 xyoo tom ntej.
Qhov no yog tus qauv qib raws li cov av noo, qhov kub thiab txias thiab txoj kev tiv thaiv. Nws yog tsuas yog tsom rau cov khoom siv nyob rau hauv qhov chaw sab nraum zoov thiab sab hauv tsev, npog ntau qhov chaw los ntawm kev xeb me me mus rau corrosion hnyav. C5M feem ntau yog tsim rau cov tsev uas muaj salinity thiab high humidity. Cov qib anti-corrosion ntawm cov pa substations yog C4M. Tsis tas li ntawd, tag nrho cov khoom siv substation, nrog rau cov khoom siv hloov pauv, hloov pauv thiab lwm yam khoom siv tseem ceeb, tau muab tso rau hauv qhov chaw kub thiab av noo tas li. Thaum lub sijhawm tsim kho, cov phab ntsa sab hauv thiab sab nrauv yog tsim los ntawm 200 mm tuab aerated qhob blocks, tsis tas yuav tsum muaj cov khoom siv hlau, muab tso rau ntawm cov khoom "lub tsho" uas yog ntsev-resistant thiab tiv thaiv corrosion rau lub substation. Hauv tsev, cov khoom siv desalination thiab cov tshuab cua tshuab kuj tau ntxiv, thiab lub plhaub radiator ntawm cov khoom siv hluav taws xob yog ua los ntawm cov hlau tsis muaj steel thiab C5M los tiv thaiv corrosion, uas ntxiv "ob chav pov hwm" rau kev tiv thaiv corrosion. Xav txog cov kev xav tau ntawm kev saib xyuas tom qab thiab kev kho dua tshiab, cov phab ntsa sab nrauv ntawm chav hloov pauv tseem ceeb kuj tau txais cov qauv detachable, uas yog tsim los ntawm cov detachable steel ncej thiab prefabricated panels. Ib yam li lub tsev thaiv, ib zaug lub ntsiab transformer yuav tsum tau tsiv los yog hloov, nws yuav tsum disassembled thiab reinstalled txhua lub sij hawm.
Yuav kom daws tau qhov teeb meem ntawm kev xa hluav taws xob mus ntev ntawm cov kob, qhov project tau tsim ib lub 34-km ob-circuit ultra-ntev submarine cable, uas muaj peb ntu: onshore, ntawm tus choj, thiab nyob rau. cov kob. Lub cable nteg raws tus choj ntawm Yangguang Island Substation Supporting Cable Project yog 16 km ntev, thiab cable channel reserved los ntawm Yellow Sea Thib Choj yog siv los txuas rau sab hauv thiab sab nraud ntawm cov kob. Qhov no yog tam sim no qhov ntev tshaj plaws submarine cable project nyob rau hauv Jiangsu. Tso lub ultra-ntev high-voltage cable rau ntawm tus choj lawj yuav tsum kov yeej kev vibration ntawm tsheb, nthwv dej thiab nag xob nag cua ntawm lub cable. Feem ntau, qhov nruab nrab kev sib txuas ntawm lub cable yog qhov tsis muaj zog thiab ua rau tsis ua haujlwm. Yog li ntawd, txoj haujlwm hla hiav txwv cable ntawm Yangguang Island 110 kV substation tau nce qhov ntev ntawm ib sab cable thiab txo cov pob qij txha hauv nruab nrab. Nyob rau hauv tag nrho cov phiaj xwm, qhov ntev tshaj plaws ib feem cable yog tshaj 1.6 kilometers, uas yog peb npaug ntawm cov pa cables, thiab cov pob qij txha ncaj qha txo los ntawm ntau tshaj li ib nrab, yog li txo qhov tsis ua hauj lwm tus nqi. Hom kab no tsis tshua muaj siv nyob rau hauv Jiangsu xeev, thiab yuav tsum tau customized unconventional reels, uas yog nyuaj rau tsim thiab thauj. Tom qab rov tshawb xyuas dua, peb tau txiav txim siab siv lub txaj qis semi-trailers rau kev thauj mus los, uas tsis tsuas yog txhim kho kev ruaj ntseg ntawm cov khoom thauj khoom thauj ntau, tab sis kuj tseem txo qis cov tsheb ntawm txoj kev.
Tsis tas li ntawd, lub cable yog nteg nyob rau hauv ib tug "snake", uas reserves ib feem ntawm expansion margin rau lub cable, thiab innovatively siv tus kheej-tsim expansion ntaus ntawv. Los ntawm kev txhim kho qhov hloov pauv ntawm lub sijhawm raws li tag nrho cov kab, lub cable tuaj yeem hloov kho nce thiab nqis raws li kev vibration amplitude ntawm tus choj lawj, txo qhov cuam tshuam ntawm kev ntxhov siab thiab nro, thiab ua kom ruaj khov ntawm txhua yam khoom siv hluav taws xob nrog rau lub tshuab nqus tsev. Circuit Court breakers thiab tso tawm fuses.