Mpweya wachilengedwe wothira madzi

Kufotokozera

Mpweya wachilengedwe wothira madzi, womwe umatchedwa LNG posachedwa, umasungunula mpweya wachilengedwe kukhala madzi mwa kuziziritsa mpweya wachilengedwe wothira madzi pansi pa mphamvu yachibadwa kufika pa -162 ℃. Mpweya wachilengedwe wothira madzi umatha kusunga malo osungiramo zinthu ndi mayendedwe, ndipo uli ndi ubwino wa kukhala ndi mphamvu zambiri, kugwira ntchito bwino, kulimbikitsa malamulo a katundu m'mizinda, kulimbikitsa kuteteza chilengedwe, kuchepetsa kuipitsa kwa mizinda ndi zina zotero.

Kutulutsa madzi ndiye maziko a kupanga LNG. Pakadali pano, njira zotulutsira madzi achilengedwe zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapo njira yotulutsira madzi a m'nyanja, njira yosakaniza madzi a m'firiji komanso njira yotulutsira madzi ndi expander.

Njira yothira madzi a gasi lachilengedwe pogwiritsa ntchito mpweya wachilengedwe imagwiritsa ntchito malo osiyanasiyana owira a refrigerant pansi pa mphamvu yachibadwa kuti ichepetse kutentha kwa firiji pang'onopang'ono kuti ikwaniritse cholinga cha kuthira madzi a gasi lachilengedwe.

Mzunguliro wosakaniza wa refrigerant (MRC) ndi njira yomwe mitundu yoposa isanu ya mafiriji osakaniza amitundu yosiyanasiyana, monga C1 ~ C5 Hydrocarbons ndi N2, amagwiritsidwa ntchito ngati madzi ogwirira ntchito kuti asungunuke, asungunuke ndikukula pang'onopang'ono kuti apeze mphamvu yoziziritsira pamlingo wosiyanasiyana wa kutentha, kenako pang'onopang'ono kuziziritsa ndi kusungunula mpweya wachilengedwe. Njira yosakaniza ya refrigerant liquefaction imagawidwa m'mitundu yosiyanasiyana ya mafiriji.

Njira yothira madzi pogwiritsa ntchito expander imatanthauza njira yothira madzi pogwiritsa ntchito refrigerant yamphamvu kwambiri kuti ipange reverse Claude cycle refrigerant ndi adiabatic expander expander.

Ndondomeko ya ndondomekoyi ikuphatikizapo: chipangizo chowongolera kuthamanga kwa mpweya wa chakudya, chipangizo choyeretsera mpweya wachilengedwe ndi chipangizo choyeretsera mpweya wachilengedwe, chipangizo chosungiramo zinthu zoziziritsa kukhosi, chipangizo chochepetsera mpweya wa m'firiji, chipangizo chosungiramo zinthu zoziziritsa kukhosi ndi chipangizo chokweza mpweya wa LNG.

Mpweya wachilengedwe wolowa m'malo oyezera mpweya umadutsa koyamba mu chipangizo chowongolera kuthamanga kwa mpweya, chomwe chimakwaniritsa malamulo oyendetsera kuthamanga kwa mpweya wachilengedwe womwe ukubwera; Mpweya wachilengedwe umalowa mu chipangizo choyeretsera mpweya wachilengedwe, komwe mpweya wachilengedwe umachotsedwa ndi CO2, kuchotsa H2S ndi chithandizo cha kutaya madzi m'thupi. Njira ya MDEA ikulimbikitsidwa kuti ichotse mpweya m'thupi ndi kuchotsa H2S, njira yochotsera madzi m'thupi yokhala ndi mipanda itatu kapena njira ya TEG yochotsera madzi m'thupi ikulimbikitsidwa kuti ichotse madzi m'thupi; Ndipo ikulimbikitsidwa kuti igwiritse ntchito BOG yobwezeretsedwa ndi yoponderezedwa kuti ipange mpweya wokonzanso;

Mpweya wachilengedwe woyeretsedwa mu gasi wachilengedwe wothira madzi, wosakaniza refrigerant (njira ya MRC liquefaction) ndi wofunikira pa kusungunuka kwa mpweya wachilengedwe; LNG yosungunuka imasungidwa mu thanki yosungiramo zinthu, ndipo njira yosungiramo zinthu mumlengalenga ndi kutentha kochepa imalimbikitsidwa kuti isungidwe mu LNG. Thanki imodzi yosungiramo zinthu mumlengalenga yotsika kutentha ili ndi BG compressor, ndipo BOG compressor imagwiritsidwa ntchito kukanikiza BOG isanalowe mu molecular sieve dryer Regeneration, kutengera pampu ya cryogenic kuti ikhazikike.

Magawo aukadaulo

1 Mphamvu yopangira 90×104 m3/tsiku
2 Kuchuluka kwa thanki 10000 m3