Troubleshooting Common Liquefied Natural Gas (LNG) Equipment Faults
Kev tuav cov cuab yeej LNG yog zoo li ua daim tshev - rau ntawm lub dav hlau; Txawm tias ib qho kev saib xyuas me ntsis tuaj yeem ua rau muaj kev cuam tshuam cov saw hlau. Nov yog qee qhov kev ua txhaum ntau tshaj plaws:
Valve Leaks: Kev laus ntawm cryogenic cov ntsaws ruaj ruaj yog lub ntsiab ua rau; roj hmab yooj yim ua nkig ntawm -162 degree.
Pipeline Frosting: Cov rwb thaiv tsev puas tuaj yeem ua rau sab nraud condensation, uas ua rau poob ntawm 0.5% ntawm LNG ib teev.
Pump Noises: Tsis txaus cov kabmob lubrication tuaj yeem ua rau cov xim hlau sib txhuam ntawm qhov nrawm tshaj 3000 rpm.
Instrument Distortion: Cov khoom sib txawv ntawm qhov sib txawv ntawm cov khoom sib txawv ntawm cov dej noo tuaj yeem muaj qhov tsis zoo ntawm kev nyeem ntawv txog li 15%.
Peb Golden Txoj Cai ntawm Kev Kho Mob
Ua ntej-Kev ua haujlwm txias: Ua ntej kev saib xyuas, cov kav dej yuav tsum tau purged nrog nitrogen; Qhov kub gradient yuav tsum tau tswj tsis pub dhau 5℃ib feeb.
Kev xaiv cov cuab yeej tshwj xeeb tawg- pov thawj tooj liab alloy wrenches yog 3 npaug zoo dua li cov cuab yeej zoo tib yam.
Sealing kev kho mob: Tighten bolts nrog kauv qhov txhab gaskets nyob rau hauv ib tug crisscross qauv, nce torque nyob rau hauv peb theem mus rau 80 Nm.
Cov kab liab kev nyab xeeb tseem ceeb: Cov kev ua haujlwm no sib npaug rau kev ua si nrog lub teeb ci ntawm ib sab ntawm cov khoom siv roj ntsha liquefied:
Siab disassembly: 0.2 MPa siab tuaj yeem tig lub ntsia liaj qhov rooj rau hauv qhov projectile.
Electrostatic ua hauj lwm: Sparks los ntawm hluavtaws fiber ntau ua hauj lwm khaub ncaws yog txaus ignite 5% concentration vapor.
Ib leeg-tus neeg ua haujlwm: Qhov kev pheej hmoo yog sib npaug los ntawm qhov tsis muaj tus neeg thib ob los pab kev khiav tawm thaum lub sijhawm xau sai.
Qhov muag tsis pom kev vuam: Hauv qhov chaw tawg uas tsis tau kuaj pom, qhov kub siab tshaj 500℃tuaj yeem ua rau tawg tawg.