Isimangaliso Sobunjiniyela sepayipi elinejakethi ye-vacuum

Ipayipi elivalekile elinomshini wokuhlanza(VIP), eyaziwa nangokuthi ipayipi le-vacuum jacketed (VJP), isebenzisa i-annulus ene-vacuum ephezulu (10⁻⁶ Torr) phakathi kwezingqimba zensimbi engagqwali eziqinile ukuze kufezwe ukudluliselwa kokushisa okucishe kube yi-zero. Kwingqalasizinda ye-LNG, lezi zinhlelo zinciphisa amazinga okubila kwansuku zonke abe ngaphansi kuka-0.08%, uma kuqhathaniswa no-0.15% wamapayipi avamile afakwe i-foam insulated. Isibonelo, iphrojekthi ye-Chevron's Gorgon LNG e-Australia isebenzisa amapayipi e-vacuum jacketed angamakhilomitha angu-18 ukuze igcine amazinga okushisa angu--162°C kulo lonke isiteshi sayo sokuthumela ngaphandle ogwini, inciphisa ukulahlekelwa kwamandla ngonyaka ngamaRandi ayizigidi ezingu-6.2.

Izinselele zase-Arctic: Ama-VIP Ezindaweni Ezibucayi

E-Yamal Peninsula yaseSiberia, lapho amazinga okushisa asebusika ehla khona afike ku--50°C,I-VIPAmanethiwekhi ane-MLI enezingqimba ezingu-40 (ukufakwa kwe-multilayer) aqinisekisa ukuthi i-LNG ihlala isesimweni soketshezi ngesikhathi sokuthunyelwa kwe-trans-ship okungamakhilomitha angu-2,000. Umbiko kaRosneft ka-2023 uqokomisa ukuthi amapayipi e-cryogenic afakwe i-vacuum-insulated anciphise ukulahlekelwa yi-vaporization ngo-53%, okusindisa amathani angu-120,000 e-LNG minyaka yonke—okulingana nokunika amandla izindlu zaseYurophu ezingu-450,000.

Ukuqamba Okusha Kwesikhathi Esizayo: Ukuzivumelanisa Nezimo Kuhlangabezana Nokusimama

Imiklamo ehlanganisiwe ekhulayo iyahlanganaamapayipi afakwe ugesiukuze kuxhunywe ngendlela ye-modular. Isikhungo se-Shell's Prelude FLNG sisanda kuhlolwaamapayipi aguquguqukayo ejakethi ye-vacuum, ifinyelela isivinini sokulayisha esisheshayo esingu-22% ngenkathi ibekezelela ingcindezi engu-15 MPa. Ngaphezu kwalokho, ama-prototype e-MLI athuthukisiwe nge-graphene abonisa amandla okunciphisa kakhulu ukuhanjiswa kokushisa ngo-30%, okuhambisana nezinhloso ze-EU zokunciphisa ukukhishwa kwe-methane ngo-2030.