Mpweya Wachilengedwe Wosungunuka (LNG) wakhala gawo lofunika kwambiri pa kusakanikirana kwa mphamvu padziko lonse lapansi, makamaka pamene mayiko akufunafuna njira zina zoyera komanso zosinthika m'malo mwa malasha ndi mafuta. Ngakhale kuti LNG imapereka ubwino womveka bwino pa chilengedwe ndi kayendetsedwe ka zinthu, kuyiyendetsa bwino kumabweretsa mavuto apadera aukadaulo. Chimodzi mwa ukadaulo wofunikira kwambiri pothana ndi mavutowa ndichitoliro chotenthetsera cha vacuum(VIP).

Vuto la Kutentha Kwambiri Pambuyo pa Kayendetsedwe ka LNG

LNG imapangidwa poziziritsa mpweya wachilengedwe kufika pa -162°C, zomwe zimachepetsa kwambiri kuchuluka kwake ndikupangitsa kuti kuyenda kwa mtunda wautali kukhale kopindulitsa pazachuma. Komabe, kusunga LNG kutentha kotereku nthawi yonse yosungira, kusamutsa, ndi kunyamula sikophweka. Ngakhale kutentha pang'ono kungayambitse nthunzi pang'ono, zomwe zimapangitsa kuti mpweya ukhale wouma, kusinthasintha kwa kuthamanga kwa magazi, komanso kusokonekera kwa ntchito.

Mapaipi otetezedwa ndi kutentha nthawi zambiri amavutika kupereka chitetezo chokwanira cha kutentha pamtunda wautali kapena nthawi zonse akamagwira ntchito. Apa ndi pomwe mapaipi otetezedwa ndi mpweya atsimikizira kufunika kwawo mu ntchito zenizeni za LNG.

BwanjiMapaipi Otetezedwa ndi VacuumGwirani Ntchito Mwachizolowezi

A chitoliro chotenthetsera cha vacuumIli ndi chitoliro chamkati ndi jekete lakunja, lokhala ndi malo ambiri otulutsa mpweya pakati. Mwa kuchotsa mpweya ndikuwonjezera kutchinjiriza kwa multilayer, dongosololi limachepetsa kwambiri njira zosamutsira kutentha monga conduction ndi convection. Mu ntchito zogwira ntchito za LNG, izi zimapangitsa kuti kutentha kukhale kokhazikika komanso kuchepetsa kutentha.

Malinga ndi momwe wogwiritsa ntchito amaonera, ubwino wake ndi wooneka. Kuchepa kwa mpweya wozizira kumatanthauza kuti zinthu sizingatayike bwino, njira zochepa zoyendetsera kupanikizika, komanso kugwiritsa ntchito mphamvu zochepa pokonzanso madzi kapena kutulutsa mpweya. Chofunikanso ndichakuti, kutentha kokhazikika kumathandiza kuti makina azigwira ntchito bwino.

Mapulogalamu a LNG a Dziko Lenileni

Mapaipi otetezedwa ndi vacuumamagwiritsidwa ntchito kwambiri pa unyolo wamtengo wapatali wa LNG. Mu malo osungiramo zinthu a LNG, amapereka mizere yodalirika yosamutsira pakati pa matanki osungiramo zinthu ndi zida zonyamulira katundu. Mu ntchito za LNG bunkers, machitidwe a VIP ndi ofanana kwambiri chifukwa cha kuthekera kwawo kuthana ndi kuyenda kwa madzi pang'onopang'ono komanso zofunikira kwambiri zachitetezo. Ogwiritsa ntchito LNG m'mafakitale, monga malo opangira magetsi ndi malo opangira zinthu, amadaliranso mapaipi oteteza mpweya kuti apereke mafuta nthawi zonse.

Kuyang'ana Patsogolo

Pamene zomangamanga za LNG zikupitilira kukula padziko lonse lapansi, ntchito ya ukadaulo wa mapaipi otetezedwa ndi vacuum ikuyembekezeka kukula limodzi ndi izi. Kupititsa patsogolo kwa zipangizo zotetezera kutentha, kukhazikika kwa vacuum, ndi njira zopangira zinthu zikuwonjezera magwiridwe antchito pomwe zimachepetsa ndalama zomwe zimagwiritsidwa ntchito pa moyo wonse.

Ponena za kayendedwe ka LNG, mapaipi otetezedwa ndi vacuum si njira yongowonjezera luso—koma ndi chinthu chofunikira kwambiri. Kutha kwawo kulinganiza bwino ntchito, chitetezo, komanso kudalirika kumawapangitsa kukhala maziko a machitidwe amakono a LNG komanso chothandizira kwambiri pakugawa mphamvu zoyera.