Ukuhambisa i-LNG ngokufanelekileyo akupheleli nje ekufumaneni ulwelo ukusuka kwindawo A ukuya kwindawo B. Umngeni wokwenyani kukulawula ukwanda kobushushu ngexesha lokudluliselwa. Nokuba ubushushu obuncinci obungaphakathi bunokuvelisa igesi ebilayo, buphazamise ukuhamba kwamanzi, kwaye bunciphise ukusebenza kakuhle kwenkqubo iyonke.

At Ii-HL Cryogenics, siyila iinkqubo zokudlulisa ezifakwe i-vacuum insulation ezigxila ekuzinzeni kobushushu bexesha elide, ukuvuza kobushushu obuphantsi, kunye nokuhanjiswa kolwelo oluthembekileyo lwesigaba esinye. Iinkqubo zethu ziyadibanisaumbhobho ogqunyiweyo we-vacuum, ipayipi eguquguqukayoiindibano, iteknoloji ye-vacuum egcinwe ngokukhutheleyo, kunye nezixhobo zolawulo lwesigaba ukuxhasa ukudluliselwa kwe-LNG okuzinzileyo kwizicelo zoshishino nezolwandle.

Kutheni i-Vacuum Insulation ibalulekile kwi-LNG Transfer

Izinto ezibangela ukubila ezifana ne-LNG zinobuthathaka kakhulu ekungeneni kobushushu. Kwimibhobho eqhelekileyo yokukhusela ubushushu, ilahleko zobushushu ziyanda kancinci kancinci njengoko ukusebenza kokukhusela ubushushu kwehla. Oku kunokukhokelela kumazinga aphezulu okubila, ukungazinzi koxinzelelo, kunye nokungasebenzi kakuhle kokusebenza.

Imibhobho egqunywe nge-vacuumUkujongana nale nto ngokunciphisa zonke iindlela ezintathu eziphambili zokudluliselwa kobushushu:

• Ukuqhuba okuqinileyo
• Ukuhanjiswa kwegesi
• Imitha yobushushu

Zethuumbhobho ogqunyiweyo we-vacuumkwaye iinkqubo zepayipi eziguquguqukayo zisebenzisa isakhiwo esinodonga oluphindwe kabini esinendawo ephezulu ye-vacuum annular, ehlala igcinwa ngaphantsi kwe-1 × 10⁻⁵ mbar. Phantsi kwezi meko, ukuhanjiswa kwegesi kunye ne-convection ziphantse zisuswe kuba iimolekyuli zegesi eziseleyo ziba zincinci kakhulu ukuba zingadlulisa ubushushu ngokufanelekileyo.

Ukuze kuncitshiswe ngakumbi ukudluliselwa kobushushu ngemitha, kufakelwa i-multilayer insulation (MLI) ejikeleze umbhobho wangaphakathi. Ezi layers ezikhanyayo zinciphisa kakhulu ukufunxwa kobushushu ngemitha kwijacket yangaphandle.

Isiphumo kukuba inqanaba lokusebenza kobushushu lingaphezulu kakhulu kunefoam eqhelekileyo okanye imibhobho ye-cryogenic egqunywe ngoomatshini.

Ngokwesiqhelo senza umbhobho wenkqubo yangaphakathi kunye nejakethi yangaphandle ngentsimbi engagqwaliyo ye-304L okanye ye-316L ukuqinisekisa ukuqina kwe-cryogenic, ukumelana nokugqwala, kunye nokusebenza okuthembekileyo kwe-weld phantsi komjikelo wobushushu ophindaphindwayo.

Inkqubo yePompo yeDynamic VacuumUkusebenza kwexesha elide

Ingxaki eqhelekileyo kwiinkqubo ze-vacuum zemveli ezinganyakaziyo kukuwohloka kancinci kancinci kwe-vacuum ngokuhamba kwexesha. Ukuphuma kwegesi kwiindawo zangaphakathi, ukuvuza okuncinci kokungena kwamanzi, kunye nokujikeleza kobushushu kunokunyusa kancinci uxinzelelo lwe-annular, kunciphisa ukusebenza kakuhle kwe-insulation.

Ukujongana nale nto,Ii-HL Cryogenicsphuhlise iInkqubo yePompo yeDynamic Vacuumyenzelwe ukuzinza kwe-vacuum ixesha elide.

Le nkqubo iqhubeka okanye ikhupha isithuba se-annular isebenzisa iimpompo zokuskrola ezisebenza ngokumanzi okanye iimpompo ze-turbomolecular. Ivalvu engabuyiyo ikhupha isithuba se-vacuum ngexesha lokulinda, ngelixa ii-vacuum gauges ezidibeneyo zibonelela ngokujonga uxinzelelo lwe-annular ngexesha langempela.

Iiyunithi ze-Adsorber nazo zifakiwe ukuze zibambe umswakama kunye nee-hydrocarbons eziseleyo ngaphakathi kwendawo yokufunxa.

Ngenxa yokuba inqanaba le-vacuum ligcinwa lisebenza, ukusebenza kwe-insulation kuhlala kuzinzile kulo lonke ixesha lokusebenza kwenkqubo kunokuba kuyehla kancinci kancinci. Phantsi kweemeko zokusebenza eziqhelekileyo, i-annulus inokuhlala ngaphakathi koluhlu lwe-mbar lwe-10⁻⁶ nokuba kwiindawo ezishushu nezifumileyo.

Oku kunegalelo ngokuthe ngqo koku:

• Amanani aphantsi okunyuka kwe-LNG
• Ukuhanjiswa kolwelo okuzinzileyo ngakumbi
• Ukuncipha kwesantya sokugcinwa
• Ukuphuculwa kokusebenza kakuhle komjikelo wobomi

Ukugcina uMsinga we-LNG oZinzileyo weSigaba esinye

Ukudluliselwa kwe-LNG okuzinzileyo akuxhomekanga kuphela ekusebenzeni kwe-insulation, kodwa nakwindlela esebenza ngayo i-phase management.

Zethuiivalvu ezigqunyiweyo zokucoca ulweloZenzelwe ukugcina amaqondo obushushu angabonakaliyo kuyo yonke intambo yokudlulisa ngelixa zinciphisa ukuvuza kobushushu kwiindawo ezibalulekileyo zolawulo. Ulwakhiwo olude lwebhonethi lugcina ukupakisha kwesiqu kude nendawo ebandayo, lunceda ukuthintela ukwakheka komkhenkce kunye nokuphucula ukuthembeka kokusebenza.

Ukulawula igesi evuthayo eveliswa ngexesha lokudluliselwa,izahluli zesigaba ezigqunyiweyo nge-vacuumzifakelwe phezulu kwiimpompo okanye kwiinkqubo zokwamkela. Ezi zahluli zisusa umphunga kumjelo wolwelo ngaphambi kokuba ufikelele kwizixhobo ezibuthathaka ezisezantsi.

Uyilo lokwahlulahlula ludla ngokuquka:

• Ukuhamba kokungena okucacileyo kokwahlulwa kwe-centrifugal
• Izakhiwo zokuzinzisa umgangatho wangaphakathi
• Ukufakwa kwe-vacuum okugcinwe ngamandla

Oku kunceda ekuthinteleni ukuqhekeka komphunga kwaye kunciphisa kakhulu umngcipheko wokutsalwa kwepompo.

IiTanki ezincincikwiinkqubo ze-LNG ezincinci kunye neeNkqubo eziphathwayo

Kwizikhululo ze-LNG eziphathwayo, iinkqubo ze-skid, okanye usetyenziso lokudlulisa oluncinci, zethuItanki encinciuthotho lubonelela nge-buffer yokugcina encinci egqunywe nge-vacuum eqala kwiilitha ezili-100 ukuya kwezingama-3,000.

Isitya sangaphakathi sixhaswa kusetyenziswa izixhobo zokuxhasa ulwakhiwo ezisebenzisa ubushushu obuphantsi kwaye sidityaniswe netekhnoloji yokulungisa i-vacuum esebenzayo. Ezi tanki zinokusebenza njengeendawo zokugcina izinto eziphakathi phakathi kwezithuthi zokuhambisa i-LNG kunye neenkqubo zokuhambisa amanzi ezisezantsi.

Phantsi kweemeko zokusebenza ezingashukumiyo, amazinga okuzicinezela ngokwawo anokulinganiselwa ngaphantsi kwe-0.1 bar ngeyure.

Ukusebenza okuqhelekileyo kokudluliselwa kwe-LNG

Inkqubo yokudlulisa i-LNG eqhelekileyo eyenziwe yi-HL Cryogenics ingasebenza ngaphakathi kwezi zinto zilandelayo:

• Uxinzelelo olusebenzayo ukusuka kwi-6 ukuya kwi-20 bar
• Isantya sokuhamba kwamanzi ukuya kuthi ga kwi-8 m/s
• Amaxabiso okuvuza kobushushu aphantsi njenge-0.25 W/m

Ngokudibanisa izinto eziqinileyoumbhobho ogqunyiweyo we-vacuumngeendawo eziguquguqukayo zepayipi kwiindawo zokwandisa okanye iingalo zokulayisha ezidibeneyo, ukusebenza kakuhle kwenkqubo iyonke kunokuphuculwa kakhulu.

Kwizicelo ezininzi ze-LNG, oku kuthetha ukuba amazinga okubila angaphantsi kwe-0.05% kwiimitha ezili-100 zomgca wokudlulisa ngeyure, okunceda ukuphucula uzinzo lokusebenza kunye nokusebenza koqoqosho.

Zethuipayipi eguquguqukayo egqunyiweyo ye-vacuumukusetyenziswa kweendibano:

• Ii-cores zangaphakathi zentsimbi engagqwaliyo ezingama-316L ezirhabaxa
• Izakhiwo zangaphandle eziqinisiweyo
• Ulwakhiwo lwe-annulus ye-vacuum esongiweyo ye-MLI

Oku kuvumela ipayipi ukuba igcine ingqibelelo ye-vacuum phantsi kwemijikelo yokugoba ephindaphindwayo kunye nokuxinana kobushushu.

Umzekelo weProjekthi: Isiphelo sendlela se-LNG eVietnam

Ii-HL CryogenicsKutshanje kubonelelwe ngenkqubo yokudlulisa i-cryogenic yemitha ezingama-350 kwiprojekthi yesiphelo se-LNG eVietnam.

Le nkqubo yenzelwe ukuhambisa i-200 m³/h ye-LNG ukusuka kwiitanki zokugcina ukuya kwindawo yokulayisha ekwi-10 bar ngelixa ihlangabezana nemiqathango engqongqo yokuyeka ukubila.

Uqwalaselo lokugqibela luquka:

• Umbhobho oqinileyo ogqunyiweyo we-vacuumkwiindawo ezinde ezithe tye
• Ipayipi yokucoca eguquguqukayo ye-vacuum cleanerkwiindawo zonxibelelwano lwejethi ezidityanisiweyo
• IsibiniIinkqubo zePompo yeDynamic Vacuumukugcina uxinzelelo lwe-mbar annulus oluyi-5 × 10⁻⁶

Ngexesha lokuqalisa, ukuvuza kobushushu okulinganisiweyo kuzinziswe malunga ne-0.28 W/m. Xa kuthelekiswa nombhobho wangaphambili ofakwe i-polyurethane insulated, ukubilisa kuncitshiswe malunga ne-80%.

Ukufakelwa kweisahluli sesigaba esigqunyiweyo se-vacuumikwasuse nemiba ephindaphindayo yokuxinana kwepompo eyayibangele ukuphazamiseka kokusebenza ngaphambili.

Namhlanje, le nkqubo isebenza ngokubeka esweni i-vacuum rhoqo kunye nokuqhuba i-pump duty cycling ecwangcisiweyo ukugcina ukusebenza okuzinzileyo kwindawo eshushu nefumileyo yaseVietnam.

Yenzelwe ukuThotyelwa kweMithetho yeHlabathi

Iinkqubo zethu zokudlulisa i-cryogenic ziyilwe ngokuhambelana nemigangatho ephambili yamazwe ngamazwe, kuquka:

• I-ASME B31.3
• EN 13480
• I-ISO 21013
• I-BS 6364 yovavanyo lwevalvu ye-cryogenic

Oku kuvumelaIi-HL Cryogenicsizixhobo zokuxhasa iiprojekthi kuzo zonke:

• Izitishi ze-LNG kuMzantsi-mpuma we-Asia
• Iinkqubo zegesi ze-semiconductor eMpuma Asia
• Izibonelelo zegesi zoshishino eYurophu
• Iiprojekthi zeziseko zophuhliso ze-hydrogen ezingamanzi ezisakhulayo kuMbindi Mpuma

Sikwalungisa imigangatho yeflange, uqhagamshelo lwe-bayonet, kunye noqwalaselo lwejakethi yangaphandle ukuze ihambelane neekhowudi zengingqi kunye neemeko zokusebenza ezithile zeprojekthi.

Inkxaso yoBunjineli kwiiProjekthi zokuDlulisela i-LNG

Nokuba uphuhlisa i-LNG bunker facility entsha okanye uphucula inethiwekhi yokudlulisa i-cryogenic ekhoyo, i-stable vacuum insulation inokuphucula kakhulu ukusebenza kakuhle kobushushu kunye nokuthembeka kokusebenza.

Ii-HL Cryogenicsibonelela ngenkxaso yobunjineli edibeneyo equka:

• Iinkqubo zemibhobho egqunywe nge-vacuum
• Umbhobho oguquguqukayo we-cryogenic
• Iivalvu ezigqunywe nge-vacuum
• Abahluli besigaba
• Izisombululo zeMini Tank
• Iinkqubo zepompo ye-vacuum enamandla

Iqela lethu lobunjineli linokukunceda ngokubala ukuvuza kobushushu, uhlalutyo lokuhla koxinzelelo, kunye noyilo lwenkqubo olulungiselelwe wena ngokusekelwe kwiimfuno zenkqubo yakho.