Kusuntha LNG bwino sikungokhudza kutulutsa madzi kuchokera pa mfundo A kupita pa mfundo B. Vuto lenileni ndikuwongolera kutentha kwambiri panthawi yotumiza. Ngakhale kutentha pang'ono kozungulira kumatha kupanga mpweya wozizira, kusokoneza kayendedwe ka madzi, ndikuchepetsa magwiridwe antchito onse a makina.

At HL Cryogenics, timapanga makina osamutsira mpweya wotentha omwe amayang'ana kwambiri kutentha kwa nthawi yayitali, kutentha kochepa kutuluka, komanso kutumiza madzi m'gawo limodzi modalirika.chitoliro chotenthetsera cha vacuum, payipi yosinthasinthama assemblies, ukadaulo wogwiritsa ntchito vacuum, ndi zida zoyendetsera magawo kuti zithandizire kusamutsa LNG mokhazikika m'mafakitale ndi m'madzi.

Chifukwa Chake Kuteteza Vacuum Kuli Kofunika Pakutumiza LNG

Madzi oundana monga LNG ndi osavuta kumva kutentha kukalowa. Mu mapaipi otetezedwa mwachizolowezi, kutayika kwa kutentha kumawonjezeka pang'onopang'ono pakapita nthawi pamene mphamvu ya kutetezedwa imachepa. Izi zingayambitse kuchuluka kwa madzi oundana, kusakhazikika kwa mphamvu, komanso kusagwira bwino ntchito.

Mapaipi otetezedwa ndi vacuumkuthetsa vutoli mwa kuchepetsa mitundu yonse itatu ikuluikulu yosamutsa kutentha:

• Kuyendetsa kolimba
• Kutulutsa mpweya
• Kuwala kwa kutentha

Zathuchitoliro chotenthetsera cha vacuumNdipo makina osinthasintha a payipi amagwiritsa ntchito kapangidwe ka makoma awiri okhala ndi malo okwera opumira mpweya, omwe nthawi zambiri amakhala pansi pa 1 × 10⁻⁵ mbar. Pansi pa izi, mpweya wotulutsa mpweya ndi convection zimatsala pang'ono kuchotsedwa chifukwa mamolekyu otsala a mpweya amakhala ochepa kwambiri kuti asamutse kutentha bwino.

Kuti achepetse kutentha kwa radiation, multilayer insulation (MLI) imayikidwa mozungulira chitoliro chamkati. Zigawo zowunikira izi zimachepetsa kwambiri kuyamwa kwa kutentha kwa radiation kuchokera ku jekete lakunja.

Zotsatira zake zimakhala kuti kutentha kumapitirira kwambiri thovu lachizolowezi kapena mapaipi oteteza cryogenic.

Nthawi zambiri timapanga chitoliro chamkati ndi jekete lakunja kuchokera ku chitsulo chosapanga dzimbiri cha 304L kapena 316L kuti tiwonetsetse kuti cryogenic, dzimbiri, komanso magwiridwe antchito odalirika a weld pansi pa kutentha mobwerezabwereza.

Dongosolo la Pampu Yopumira Yopanda MphamvuKuchita Zinthu Kwa Nthawi Yaitali

Vuto limodzi lofala ndi makina osungira mpweya osasunthika ndi kuwonongeka pang'onopang'ono kwa mpweya wotuluka m'malo osungira mpweya pakapita nthawi. Kutuluka kwa mpweya kuchokera mkati, kutuluka pang'ono kwa mpweya, komanso kutentha kumatha kuwonjezera mphamvu ya mpweya wotuluka m'malo osungira mpweya, zomwe zimachepetsa mphamvu ya kutentha.

Kuti tithetse izi,HL CryogenicsadapangaDongosolo la Pampu Yopumira Yopanda Mphamvuyopangidwira kukhazikika kwa vacuum kwa nthawi yayitali.

Dongosololi limachotsa malo ozungulira nthawi zonse kapena nthawi ndi nthawi pogwiritsa ntchito ma pump opukutira owuma kapena ma pump a turbomolecular. Valavu yosabwerera imachotsa malo ozungulira nthawi yoyimirira, pomwe ma gauge ophatikizana a vacuum amapereka kuwunika kwa kuthamanga kwa annulus nthawi yeniyeni.

Magulu a adsorber amaphatikizidwanso kuti agwire chinyezi ndi ma hydrocarbon otsala mkati mwa malo opumulirako.

Popeza mulingo wa vacuum umasungidwa bwino, magwiridwe antchito a insulation amakhalabe olimba nthawi yonse ya ntchito ya dongosololi m'malo mochepa pang'onopang'ono. Pansi pa magwiridwe antchito abwinobwino, annulus imatha kukhala mkati mwa 10⁻⁶ mbar range ngakhale m'malo otentha komanso onyowa.

Izi zimathandiza mwachindunji ku:

• Kutsika kwa LNG chifukwa cha kukwera kwa mitengo
• Kutumiza madzi kokhazikika
• Kuchepa kwa nthawi yokonza
• Kugwira bwino ntchito kwa moyo wonse

Kusunga Kuyenda Kokhazikika kwa LNG ya Gawo Limodzi

Kusamutsa kokhazikika kwa LNG sikudalira kokha pa magwiridwe antchito a insulation, komanso pa kayendetsedwe kogwira mtima ka gawo.

Zathumavavu otetezedwa ndi vacuumZapangidwa kuti zisunge kutentha kosasunthika mumzere wonse wotumizira pomwe zimachepetsa kutuluka kwa kutentha pamalo ofunikira kwambiri owongolera. Makonzedwe owonjezera a bonnet amasunga kulongedza kwa tsinde kutali ndi malo ozizira, zomwe zimathandiza kupewa kupangika kwa ayezi ndikuwonjezera kudalirika kwa magwiridwe antchito.

Kusamalira mpweya woipa womwe umapangidwa panthawi yosamutsa,zolekanitsa magawo otetezedwa ndi vacuumzimayikidwa pamwamba pa mapampu kapena makina olandirira. Zolekanitsa izi zimachotsa nthunzi kuchokera mumtsinje wamadzimadzi isanafike pazida zofewa zomwe zili pansi pa madzi.

Kapangidwe ka olekanitsa nthawi zambiri kamakhala ndi:

• Tangential inlet otaya kwa kulekana kwa centrifugal
• Kapangidwe ka mkati mwa mulingo wokhazikika
• Kuteteza vacuum komwe kumasungidwa bwino

Izi zimathandiza kupewa kutsekeka kwa nthunzi ndipo zimachepetsa kwambiri chiopsezo cha kutsekeka kwa mapampu.

Matanki Ang'onoang'onoza LNG yaying'ono ndi machitidwe oyenda

Pa malo osungira LNG oyenda, makina otsetsereka, kapena mapulogalamu ocheperako osamutsa, athuTanki Yaing'onoMndandandawu umapereka malo osungiramo zinthu zosungiramo zinthu zotayidwa ndi vacuum okhala ndi mphamvu ya malita 100 mpaka 3,000.

Chidebe chamkati chimathandizidwa pogwiritsa ntchito zida zochiritsira mpweya zomwe sizitentha kwambiri ndipo chimagwirizanitsidwa ndi ukadaulo wokonza vacuum. Matanki awa amatha kugwira ntchito ngati zosungira pakati pa magalimoto otumizira LNG ndi makina operekera madzi pansi pa madzi.

Pansi pa mikhalidwe yogwirira ntchito yosasinthasintha, kuchuluka kwa kudzikakamiza kumatha kuchepetsedwa kufika pansi pa 0.1 bar pa ola limodzi.

Magwiridwe Abwinobwino a Kusamutsa LNG

Dongosolo lokhazikika losamutsa LNG lopangidwa ndi HL Cryogenics likhoza kugwira ntchito mkati mwa:

• Kupanikizika kwa ntchito kuyambira 6 mpaka 20 bar
• Kuthamanga kwa madzi mpaka 8 m/s
• Kutaya kwa kutentha kotsika kufika pa 0.25 W/m

Mwa kuphatikiza zolimbachitoliro chotenthetsera cha vacuumNdi magawo osinthasintha a payipi pamalo okulirakulira kapena mikono yolumikizirana, magwiridwe antchito a dongosolo lonse amatha kukwera kwambiri.

Mu ntchito zambiri za LNG, izi zikutanthauza kuti kuchuluka kwa magetsi okwana 0.05% pa mamita 100 aliwonse othamangitsidwa pa ola limodzi, zomwe zimathandiza kukonza kukhazikika kwa ntchito komanso magwiridwe antchito azachuma.

Zathupayipi yosinthika yotsekedwa ndi vacuumkugwiritsa ntchito kwa ma assemblies:

• Zitsulo zosapanga dzimbiri zamkati zopangidwa ndi chitsulo chosapanga dzimbiri cha 316L
• Mapangidwe olimbikitsidwa akunja oluka
• Kapangidwe ka vacuum annulus kokulungidwa ndi MLI

Izi zimathandiza kuti payipi isunge umphumphu wa vacuum pansi pa kusinthasintha mobwerezabwereza ndi kutentha.

Chitsanzo cha Pulojekiti: Malo Osungiramo Zinthu ku LNG ku Vietnam

HL CryogenicsPosachedwapa adapereka njira yosamutsira cryogenic ya mamita 350 pa ntchito yomanga malo osungiramo zinthu za LNG ku Vietnam.

Dongosololi linapangidwa kuti lizitha kusamutsa 200 m³/h ya LNG kuchokera ku matanki osungiramo zinthu kupita ku malo osungira katundu pa 10 bar pamene likukwaniritsa zoletsa zolimba.

Kapangidwe komaliza kanaphatikizapo:

• Zingalowe m'malo otetezedwa chitoliro cholimbakwa magawo ataliatali owongoka
• payipi yotenthetsera yosinthika ya vacuumpa maulumikizidwe a articulated jetty
• ZachiwiriMakina Opopera Opanda Mphamvukusunga kuthamanga kwa 5 × 10⁻⁶ mbar annulus

Panthawi yoyambitsa, kutentha komwe kunayesedwa kunakhazikika pa pafupifupi 0.28 W/m. Poyerekeza ndi payipi yam'mbuyomu yotetezedwa ndi polyurethane, kuwira kunachepa ndi pafupifupi 80%.

Kukhazikitsa kwacholekanitsa gawo lotetezedwa ndi vacuuminathetsanso mavuto obwerezabwereza okhudza kutsekeka kwa mapampu omwe kale ankayambitsa kusokonekera kwa ntchito.

Masiku ano, dongosololi limagwira ntchito ndi kuyang'anira kosalekeza kwa vacuum komanso kuyendetsa pampu nthawi zonse kuti lipitirize kugwira ntchito bwino m'mphepete mwa nyanja yotentha komanso yonyowa ku Vietnam.

Yopangidwira Kutsatira Malamulo Padziko Lonse

Machitidwe athu osamutsira cryogenic adapangidwa motsatira miyezo yayikulu yapadziko lonse lapansi, kuphatikizapo:

• ASME B31.3
• EN 13480
• ISO 21013
• BS 6364 yoyesera ma valve a cryogenic

Izi zimalolaHL Cryogenicszida zothandizira mapulojekiti osiyanasiyana:

• Malo oimikapo magetsi a LNG ku Southeast Asia
• Makina a gasi a semiconductor ku East Asia
• Malo opangira gasi ku Europe
• Mapulojekiti atsopano a haidrojeni yamadzimadzi ku Middle East

Timasinthanso miyezo ya flange, kulumikizana kwa bayonet, ndi mawonekedwe a jekete lakunja kuti ligwirizane ndi ma code am'deralo ndi momwe ntchito ikuyendera malinga ndi polojekiti.

Thandizo la Uinjiniya pa Mapulojekiti Osamutsa LNG

Kaya mukupanga malo atsopano osungiramo zinthu za LNG kapena kukonza netiweki yotumizira zinthu za cryogenic yomwe ilipo kale, kutchinjiriza kwa vacuum kokhazikika kungathandize kwambiri kuti kutentha kugwire bwino ntchito komanso kuti ntchito ikhale yodalirika.

HL Cryogenicsimapereka chithandizo chophatikizana cha uinjiniya:

• Makina opopera mapaipi otetezedwa ndi vacuum
• Paipi yosinthasintha ya Cryogenic
• Ma valve otetezedwa ndi vacuum
• Zolekanitsa magawo
• Mayankho a Mini Tank
• Makina opangira mpweya wotulutsa mpweya

Gulu lathu la mainjiniya lingathandize powerengera kutentha komwe kumatuluka, kusanthula kutsika kwa mphamvu, komanso kapangidwe ka makina okonzedwa kutengera zomwe mukufuna.