Them Cua Txias Rau Offshore Platform Diesel Cav Txias System
Them cua txiasrau Offshore Platform Diesel Cav Txias System
Core Function
Nruab nruab nrab ntawm lub qhov hluav taws xob turbocharger & lub cav noj manifold, txias siab -temp compressed boost cua:
Turbo- cua compressed nce mus rau 180 ~ 220 degree, CAC txias mus rau 40 ~ 50 degree, boost huab cua ceev ↑, ntau oxygen rau hauv lub tog raj kheej
Txo cov roj noj, txo qis NOₓ tso pa tawm raws li IMO kev cai sab nrauv
Txiav lub cav thermal load, zam qhov txawv txav thiab overheating, ncua lub neej kev pab cuam diesel
Offshore Tshwj Xeeb Kev Ua Haujlwm
Hnyav ntsev tsuag, high humidity & corrosive offshore marine cua
Dual -circuit cooling tsim dav siv: Kaw cov dej tshiab nruab nrab lub voj voog + qhib dej hiav txwv kawg txias.
Independent CAC cua txias Circuit Court nrog lub ntsuas sov (kom txias txias dua lossis sib npaug li 30℃kom tsis txhob muaj dej ntws tawm hauv cov tub ntxhais kawm)
Main Structure & Material xaiv (Offshore Anti-corrosion Standard)
| Cheebtsam | Standard Offshore Khoom | Qhov zoo |
|---|---|---|
| Lub raj cua txias | CuNi 90/10/70/30 Copper -nickel, Titanium raj | Zoo heev seawater ntsev corrosion kuj |
| Fin | Tinned tooj liab fin / coated aluminium fin | Kev hloov pauv kub kub, tiv thaiv - ntsev pos huab corrosion |
| Tube daim ntawv | Naval tooj dag / carbon steel nrog tiv thaiv -corrosion txheej | Anti-pitting corrosion nyob rau hauv alternating ntub- qhuav |
| Plhaub/End Cover | Cam khwb cia hlau + epoxy anticorrosive xim | Offshore ntsev pos huab tiv thaiv |
Hom qauv: Tube & Fin (nrov tshaj plaws rau offshore diesel CAC)
Kub nqi cua ntws tawm sab nraud finned hlab; txias dej tshiab circulates nyob rau hauv cov hlab rau cross-flow heat exchange.
Ob Lub Cuab Yeej Cuab Yeej Cuab Yeej rau Offshore Platform
Tswv yim 1: Indirect Fresh Water Cooling (Mainstream Offshore Type)
Seawater → phaj kub exchanger → txias kaw dej tshiab → dej tshiab twj tso kua mis → CAC raj sab → rov qab mus rau lub tank dej tshiab
Qhov zoo: Seawater yeej tsis nkag mus rau CAC core, zoo heev txo cov raj corrosion & thaiv, nyiam rau offshore tseem ceeb generator diesel
Tswv yim 2: Direct Seawater Cooling (Nqis-txuag me me)
Cov dej hiav txwv ncaj qha dhau los ntawm CAC cov kav dej, tsuas yog siv rau qis - lub zog pabcuam diesel ntawm lub platform tsis muaj neeg siv
Common Fault & Maintenance for Offshore CAC
Huab cua sab fouling: ntsev plua plav & roj sludge thaiv fins → huab cua siab poob nce, cav fais fab derate → siab siab - cua tshuab ntxhua khaub ncaws
Dej sab nplais/corrosion: Seawater scaling los yog raj pinhole to → tshuaj pickling los yog raj plugging hloov
Dew condensation nyob rau hauv cov tub ntxhais: Tsis tshua muaj dej txias temp → kho CAC Circuit Court thermostat kom nce inlet coolant temp
Matching Applicable Diesel Hom rau Offshore Platform
Kab ntsig, txiv neej, Wärtsilä, DEUTZ, Mitsubishi, Yanmar offshore generator diesel series
