Ib lo lus nug uas nquag nug: Uamarine lawj cranes, cov cuab yeej nqa khoom tseem ceeb ntawm cov nkoj LNG, yuav tsum tau tawg- pov thawj?
Yog lawm.
Vim li cas tawg -Cov pov thawj kev tsim kho yog yuav tsum tau rau LNG Nkoj Marine Deck Cranes?
LNG (Liquefied Natural Gas) feem ntau yog tsim los ntawm methane. Nyob rau hauv qhov kev tshwm sim ntawm to, nws vaporizes sai sai rau ntawm lub lawj qhib thiab yooj yim tsim ib tug explosive gas sib tov. Marine lawj crane yog ruaj khov rau ntawm lub nkoj lub lawj, tshwj xeeb tshaj yog nyob ze rau cov kav dej ntom ntom thiab cov bunkering manifolds. Txhua qhov hluav taws xob hluav taws xob tsim los ntawm kev khiav hauj lwm motors, hluav taws xob tswj cov txee, los yog txwv cov keyboards tuaj yeem ua rau muaj kev puas tsuaj loj heev.
Tsis tas li ntawd, kev tawg- pov thawj kev teeb tsa rau LNG nkoj marine deck cranes yog ib qhoTxoj cai yuav tsum tau pom zoo rau chav kawmtso tawm los ntawm cov thawj coj faib pawg, suav nrog DNV, BV, thiab ABS.
Thaum qhia txog marine lawj cranes rau LNG cov nqa khoom, qhov tawg tau - cov qauv pov thawj thiab kev ntsuas tsis yog - cov ntsiab lus tseem ceeb rau kev yuav khoom. Raws li methane vapor kis sai sai thaum nchuav rau ntawm lub lawj, cov hluav taws xob tsis zoo los ntawm cov khoom siv hluav taws xob crane ua rau muaj kev phom sij loj heev hauv cov cua kub hnyiab ze ze ntawm qhov chaw nqa khoom thiab LNG bunkering chaw nres tsheb.
Yuav ua li cas txiav txim siab qhov yuav tsum tau tawg-Qhov pov thawj rau LNG Vessel Marine Deck Cranes?
Kev ntsuas ntsuas tau raug txiav txim siab raws li IMO cov cai thiab IEC 60092-506 (Kev teeb tsa hluav taws xob hauv nkoj - Cov Chaw Muaj Teeb Meem), suav nrog IEC 60079 series rau cov khoom siv cua tawg:
1. Qhov chaw muaj xwm txheej zoning
--- Zone 1: Npog cov cheeb tsam tam sim ntawd ib puag ncig LNG cargo tank vents thiab bunkering manifolds. Yog hais tias lub marine crane lub slewing kem thiab tsav motors raug ntsia rau hauv qhov siab no - cheeb tsam txaus ntshai, tag nrho chav tsev yuav tsum tau engineered rau Zone 1 ua raws.
--- Zone 2: Siv rau lwm lub lawj qhov twgmarine lawj cranefeem ntau yog ntsia. Cov pa hluav taws xob tsis zoo yuav tshwm sim raws li kev ua haujlwm ib txwm muaj thiab tsuas yog muaj nyob ib ntus yog tias muaj kev sib tsoo tshwm sim. Cov cuab yeej siv rau hauv Cheeb Tsam 2 tseem yuav tsum muaj kev tawg tag nrho - ntawv pov thawj.
2. Kev tawg tshwj xeeb-Cov pov thawj qib rau LNG Marine Deck Cranes
Kev lag luam thoob ntiaj teb offshore thiab marine ua raws li IEC 60079 tus qauv rau cov khoom siv phom sij. Yam tsawg kawg nkaus thiab pom zoo ntsuam xyuas rau methane (LNG) kev pab cuam yog teev hauv qab no:
--- Kev tiv thaiv hom: Ex d flameproof enclosure yog qhov kev xaiv zoo tshaj plaws rau siab - lub zog tsav lub cev muaj zog, uas tiv thaiv sab hauv arc lossis tawg los ntawm igniting sab nraud flammable gas; Ex e ntau hom kev nyab xeeb yog siv tau rau cov thawv davhlau ya nyob twg nkaus xwb. Ex d tau pom zoo los ntawm cov koom haum kev faib tawm rau cov cheeb tsam hauv hiav txwv hnyav kom muaj kev ntseeg siab tshaj plaws.
--- Gas Group: Methane poob rau hauv Gas Group IIA. Rau kev siv dav dua thiab kev nyab xeeb dua, feem ntau cov tubrog nkoj pov thawj tawg-cov pov thawj motors txais yuav Pawg IIB, uas suav nrog IIA cov cai thiab muaj nyob hauv khw.
--- Chav ntsuas kub: Nws pib - qhov kub thiab txias ntawm methane yog 537 degree, yuav tsum muaj cov khoom kub hauv qab 450℃(Temperature Class T1). Txheem marine explosion-cov pov thawj motors txais T4 ntsuam xyuas nrog qhov siab tshaj plaws ntawm qhov kub thiab txias tsawg dua los yog sib npaug rau 135 degree, uas deb tshaj qhov tsawg kawg nkaus T1 yuav tsum tau thiab muab kev ruaj ntseg zoo dua.
Qhov kawg pom zoo Specification yuav tsum tau teev nyob rau hauv Technical Datasheet: Ex d IIB T4 (yam tsawg kawg uas tau txais lwm txoj kev: Ex d IIA T1)
Kev Ceeb Toom Txog Kev Ua Haujlwm Tseem Ceeb rau Shipowners
Los ntawm pab pawg engineering ntawm YFM Crane:
--- Kev tawg- cov ntawv pov thawj tsuas yog siv raucov khoom siv hluav taws xob, tsis yog steel structural ncej ntawm lubmarine lawj crane.
Hydraulic cylinders thiab crane booms tsis tsim cov khoom siv hluav taws xob thiab tsis xav tau kev tawg - pov thawj kev kho mob. Nyob rau hauv sib piv, slewing motors, hoisting motors, illuminated tswj vaj huam sib luag, mus ncig teb chaws txwv keyboards, thiab davhlau ya nyob twg lub thawv yuav tsum tau nruab nrog ntawv pov thawj Ex d IIB T4 tawg- pov thawj Cheebtsam.
--- Tus nqi -kev tsim kho zoo siv dav dav tau txais los ntawm LNG cov hlab ntsha: Kom tsis txhob muaj nqi siab rau kev tawg tag nrho- pov thawj hydraulic zog (HPUs), lub pob hluav taws xob hydraulic (lub cev muaj zog + roj tank) tuaj yeem hloov mus rau qhov chaw nyab xeeb hauv qab lawj, xws li chav cav lossis cov khoom siv tshwj xeeb. Hydraulic pipelines xa hluav taws xob mus rau lub lawj -mounted marine lawj crane nkaus xwb.
YFM tuaj yeem hloov kho cov txheej txheem kev teeb tsa no los pab cov neeg siv khoom txhim kho cov peev nyiaj thaum ua raws li cov cai hauv hiav txwv.
Kaw Cov Lus Tshaj Tawm
Rau qhov xav tau kev ua haujlwm ntawm LNG bunkering nkoj, YFM khomarine lawj cranesnruab nrogEx d IIB T4 certified explosion-cov ntaub ntawv pov thawj hluav taws xob thiab cov hluav taws xob tsis muaj hluav taws xob mus txawv tebchaws, ua raws li IEC 60092-506 thiab cov cai ntawm tag nrho cov thoob ntiaj teb kev faib nkoj loj.
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