Ho qhibilihisa khase ea tlhaho ke ts'ebetso ea mocheso o tlase. Khase ea tlhaho e hloekisitsoeng e kena ka har'a phapanyetsano ea mocheso bakeng sa ho pholisa mocheso o tlase, ho kolobisa le ho pholisa ka tlase, e thiba le ho theola khatello mochesong oa - 160 ~ 165 ℃, ebe e kena ka tankeng ea polokelo ea LNG.
Kamano pakeng tsa mocheso le mocheso oa ho pholisa, ho kolobisa le ho se pholise khase ea tlhaho ke e latelang:
1) Mefuta ea potoloho ea sehatsetsing
E le ho etsa hore khase ea tlhaho e qhibilihe, mocheso o nakong ea ho pholisa khase ea tlhaho, ho kolobisa le ho pholisa ka matla o tlameha ho tlosoa, ke hore, matla a ho pholisa a tsamaellanang aa hlokahala ho fapanyetsana le eona.
Sistimi ea sehatsetsi e hlomelitsoeng ts'ebetsong ea ho nosetsa ke ho etsa hore sesebelisoa sa ho fapanyetsana mocheso se fihlelle phapang e fokolang ea mocheso pakeng tsa phallo ea serame le mocheso, e le ho fumana katleho e phahameng ea sehatsetsing.
Sistimi ea sehatsetsi bakeng sa ho qhibiliha ha khase ea tlhaho e se e hōlile haholo, 'me lits'ebetso tse sebelisoang hangata li kenyelletsa:
Potoloho ea sehatsetsing ea mohato
Potoloho ea sehatsetsing e tsoakiloeng
Potoloho ea sehatsetsing e tsoakiloeng ka sehatsetsing le Precooling
Mokhoa oa katoloso potoloho ea serame
2) Potoloho ea sehatsetsing ea mohato
Potoloho ea sehatsetsi ea mehato e ile ea sebelisoa ka lekhetlo la pele ho lihlahisoa tsa khase ea tlhaho e metsi ka 1939. E ile ea kenngoa Cleveland United States, ho sebelisoa NH3 le C2H4 e le lihatsetsi tsa mohato oa pele le oa bobeli.
Mokhahlelong oa pele, propane kapa Freon e sebelisoa e le sehatsetsing. Khase ea tlhaho e hloekisitsoeng e pholisoa ho fihlela ho - 35 ~ - 40 ℃ ka har'a propane kapa Freon cooler. Kamora ho arola li-hydrocarbon tse boima ka holim'a pentane, e kena mohatong oa bobeli bakeng sa ho pholisa. Khase ea propane e tsoang ho propane cooler e hatelloa ke compressor, ebe e qhibilihisoa hape ka mor'a ho pholisoa ke metsi cooler, ebe e sebelisoa hape ho propane cooler.
Mokhahlelong oa bobeli, ethane kapa ethylene e sebelisoa e le sehatsetsing, 'me khase ea tlhaho e pholisoa ho fihlela ho - 90 ~ - 100 ℃ mohatong oa bobeli ebe e qhibilihisoa mohatong oa boraro bakeng sa ho pholisa. Kamora ho hatelloa le ho pholisoa ka metsi, khase e tsoang ho ethane kapa ethylene cooler e pholisoa ebe e qhibilihisoa ka har'a propane cooler ebe e sebelisoa hape ho ethane kapa ethylene cooler.
Mokhahlelong oa boraro, methane e sebelisoa e le sehatsetsi. Khase ea tlhaho e metsi e pholisoa ho fihlela ho – 150 ~ – 160 ℃ ka har'a sehatsetsi sa methane, ebe e fokotsoa khatello ka valve ea throttle. Kamora hore mocheso o theohele ho – 162 ℃, e pompeloa ho ea tankeng ea polokelo ea LNG. Khase e tsoang sehatsetsing sa methane e hatelloa ebe e pholisoa ka metsi, e pholisoa ka har'a sehatsetsi sa propane, e qhibilihisoa ka har'a sehatsetsi sa ethane kapa ethylene, ebe e sebelisoa hape ho pholisoa ka methane.
Potoloho ea sehatsetsi ea mehato ea khale e kenyelletsa mekhahlelo e 'maloa ea ho pholisa e ikemetseng le e hokahaneng. Kaha sehatsetsi hangata se hatelloa ke compressor ea mekhahlelo e mengata, mohatong o mong le o mong oa ho pholisa, sehatsetsi se ka fetoha mouoane tlas'a likhatello tse 'maloa' me sa aroloa ka maemo a 'maloa a mocheso ho pholisa khase ea tlhaho, 'me sehatsetsi se fetohang mouoane tlas'a khatello e 'ngoe le e 'ngoe se kena mohatong o tsamaellanang oa compressor bakeng sa khatello. Mokhahlelong o mong le o mong oa ho pholisa, ke sehatsetsi feela se fapaneng, 'me ts'ebetso ea ts'ebetso e ts'oana haholo.
Melemo ea potoloho ea sehatsetsi ea mohato ke:
① Tšebeliso e tlase ea matla;
② Sehatsetsi se hloekile 'me ha se na bothata ba ho lekanya boholo ba lintho;
③ Theknoloji e holileng le ts'ebetso e tsitsitseng
Mathata a potoloho ea sehatsetsing ea mohato ke:
① Ho na le diyuniti tse ngata mme tshebetso e rarahane;
② Ho na le lisebelisoa tse ngata tse thusang, 'me ho lokela hore ho be le lisebelisoa tse khethehileng tsa ho hlahisa le ho boloka mefuta e fapaneng ea lihatsetsi;
③ Sistimi ea liphaephe le taolo li rarahane ebile ha li bonolo ho li hlokomela
Nako ea poso: Loetse-26-2021