Tlhahiso ea naetrojene ea karohano ea moea ke mokhoa oa setso oa tlhahiso ea naetrojene o nang le nalane ea lilemo tse mashome a 'maloa. E sebelisa moea e le thepa e tala, e e hatella le ho e hloekisa, ebe e sebelisa phapanyetsano ea mocheso ho etsa hore moea o kene moeeng o mokelikeli. Moea oa metsi haholo-holo ke motsoako oa oksijene ea metsi le naetrojene e metsi. Ho sebelisoa lintlha tse fapaneng tse belang tsa oksijene ea metsi le naetrojene e metsi, naetrojene e fumanoa ka ho li arola ka ho tšeloa ha moea o mokelikeli.
Mokhoa o tloaelehileng oa ho phalla
Ts'ebetso eohle e na le khatello ea moea le tlhoekiso, karohano ea moea, le mouoane oa naetrojene ea metsi.
1. Khatello ea moea le tlhoekiso
Ka mor'a hore moea o hloekisoe ka lerōle le litšila tsa mochine ka mochine oa moea, o kena ka har'a compressor ea moea, o hatelloa ho ea khatello e hlokahalang, ebe o romelloa ho se pholileng sa moea ho fokotsa mocheso oa moea. Ebe e kena moeeng o omisang purifier ho tlosa mongobo, carbon dioxide, acetylene le li-hydrocarbon tse ling moeeng.
2. Karohano ea moea
Moea o hloekisitsoeng o kena mocheng o moholo oa mocheso ka mohahong oa karohano ea moea, o pholile ho ea mocheso oa saturation ka khase ea reflux (sehlahisoa sa naetrojene, khase ea litšila), 'me e romeloa ka tlase ho tora ea distillation. Nitrogen e fumanoa ka holim'a tora, 'me moea oa mokelikeli oa phunyeletsoa' me o romelloa O kena ka mouoane oa condensation hore o fetohe mouoane, 'me ka nako e ts'oanang, karolo ea naetrojene e rometsoeng ho tloha tora ea ho lokisa e fokotsehile. Karolo ea "condensed liquid nitrogen" e sebelisoa e le mokelikeli oa reflux oa tora ea tokiso, 'me karolo e' ngoe e sebelisoa e le sehlahisoa sa naetrojene e metsi 'me e siea tora ea karohano ea moea.
Khase ea mouoane e tsoang ho evaporator ea condensation e futhumatsoa ho hoo e ka bang 130K ke mochine o moholo oa mocheso 'me e kena ka har'a setsi sa ho atolosa le ho etsa sehatsetsi ho fana ka matla a ho pholisa bakeng sa tora ea karohano ea moea. Karolo e 'ngoe ea khase e atolositsoeng e sebelisetsoa ho nchafatsa le ho pholisa sieve ea molek'hule, ebe e ntšoa ka sesebelisoa sa ho khutsisa. sepakapaka.
3. Mouoane oa naetrojene ea mouoane
Naetrojene e metsi e tsoang tora ea karohano ea moea e bolokiloe ka tanka ea polokelo ea naetrojene e metsi. Ha thepa ea karohano ea moea e hlahlojoa, naetrojene e metsi e ka tanka ea polokelo e kena ka har'a mouoane ebe e futhumatsoa pele e romeloa phaepeng ea naetrojene ea sehlahisoa.
Tlhahiso ea naetrojene ea cryogenic e ka hlahisa naetrojene ka bohloeki ba ≧99.999%.
bohloeki
Tlhahiso ea naetrojene ea cryogenic e ka hlahisa naetrojene ka bohloeki ba ≧99.999%. Ho hloeka ha naetrojene ho lekanyelitsoe ke mojaro oa naetrojene, palo ea literei, katleho ea tray le bohloeki ba oksijene moeeng oa mokelikeli, joalo-joalo, 'me sebaka sa ho lokisa se nyane.
Ka hona, bakeng sa sete ea lisebelisoa tsa tlhahiso ea naetrojene ea cryogenic, bohloeki ba sehlahisoa bo tiile ebile ha bo bonolo ho bo fetola.
Thepa ea mantlha e kenyellelitsoeng sesebelisoa sa jenereithara sa naetrojene ea cryogenic
1. Sefa moea
E le ho fokotsa ho roala ha mochini o tsamaeang ka hare ho compressor ea moea le ho netefatsa boleng ba moea, pele moea o kena ka har'a compressor ea moea, o tlameha ho qala ka ho feta ka har'a sefe ea moea ho tlosa lerōle le litšila tse ling tse teng ho eona. Moea o kenang oa li-compressor tsa moea hangata o sebelisa li-filters tse sebetsang hantle kapa li-filters tse sebetsang hantle haholo.
2. Air compressor
Ho ea ka molao-motheo oa ho sebetsa, li-compressor tsa moea li ka aroloa ka mekhahlelo e 'meli: volumetric le speed. Li-compressor tsa moea hangata li sebelisa li-compressor tsa moea tsa piston, li-compressor tsa moea tse bohareng le li-screw air compressors.
3. Moea o pholileng
E sebelisoa ho fokotsa mocheso oa moea o hatelitsoeng pele o kena moeeng o omisang purifier le tora ea karohano ea moea, ho qoba ho fetoha ho hoholo ha mocheso o kenang tora, 'me ho ka fokotsa boholo ba mongobo moeeng o hatelitsoeng. Li-coolers tsa naetrojene (tse entsoeng ka litora tse pholileng tsa metsi le litora tsa pholiso ea moea: tora ea ho pholisa metsi e sebelisa khase e litšila e tsoang tora ea karohano ea moea ho pholisa metsi a potolohang, 'me tora e pholisang moea e sebelisa metsi a potolohang a tsoang tora ea ho pholisa metsi ho pholisa moea. moea), Freon air cooler .
4. Se omisa moea le se hloekisang
Moea o hatelitsoeng o ntse o e-na le tekanyo e itseng ea mongobo, carbon dioxide, acetylene le li-hydrocarbon tse ling ka mor'a ho feta moeeng o pholileng. Mongobo o leqhoa le carbon dioxide e kentsoeng tora ea karohano ea moea e tla thibela likanale, liphaephe le li-valve. Acetylene e bokellana ka har'a oksijene ea metsi 'me ho na le kotsi ea ho phatloha. Lerōle le tla khathatsa mochini o sebetsang. E le ho netefatsa ts'ebetso e sireletsehileng ea nako e telele ea setsi sa karohano ea moea, lisebelisoa tse khethehileng tsa tlhoekiso li tlameha ho thehoa ho tlosa litšila tsena. Mekhoa e tloaelehileng haholo ea ho hloekisa moea ke adsorption le serame. Mokhoa oa adsorption oa limolek'hule o sebelisoa haholo ho lijenereithara tse nyane le tse mahareng tsa naetrojene naheng ea China.
5. Tora ea karohano ea moea
Mohaho oa karohano ea moea haholo-holo o kenyelletsa mochini o futhumatsang mocheso, liquefier, tora ea distillation, condensing evaporator, joalo-joalo Mocheso o moholo oa mocheso, mouoane o kokobetsang le liquefier ke lisebelisoa tsa mocheso tse sothehileng. Ke mofuta o mocha oa mocheso o kopantsoeng oa ho arola mocheso o nang le mohaho oa tšepe oa aluminium kaofela. Phapang e tloaelehileng ea mocheso e nyane haholo 'me katleho ea phapanyetsano ea mocheso e phahame ho feta 98-99%. The distillation tower ke thepa ea karohano ea moea. Mefuta ea lisebelisoa tsa tora e arotsoe ho ea ka likarolo tse ka hare. Tower ea sieve plate e nang le sieve plate e bitsoa sieve plate tower, bubble cap tower e nang le bubble cap plate e bitsoa bubble cap tower, 'me tora e pakiloeng e nang le liphutheloana tse phuthetsoeng e bitsoa sieve plate tower. Letlapa la sieve le na le sebopeho se bonolo, le bonolo ho etsoa, 'me le na le ts'ebetso e phahameng ea lipoleiti, kahoo le sebelisoa haholo litora tsa ho arola moea. Litora tse pakiloeng li sebelisoa haholo-holo bakeng sa litora tsa distillation tse bophara bo ka tlase ho 0.8m le bophahamo bo sa feteng 7m. Litora tsa li-bubble cap li se li sebelisoa seoelo ka lebaka la sebopeho sa tsona se rarahaneng le mathata a tlhahiso.
6. Turboexpander
Ke mochini o potolohang oa lehare o sebelisoang ke lijenereithara tsa naetrojene ho hlahisa matla a batang. Ke mochine oa khase o sebelisoang tlas'a maemo a tlaase a mocheso. Li-Turboexpanders li arotsoe ka mofuta oa phallo ea axial, mofuta oa centripetal radial flow le mofuta oa centripetal radial flow ho latela tataiso ea phallo ea khase ho impeller; ho ea ka hore na khase e tsoela pele ho atoloha ho impeller, e arotsoe ka mofuta oa counterattack le mofuta oa tšusumetso. Katoloso e tsoelang pele ke mofuta oa counterattack. mofuta, ha e tsoele pele ho hola mme e fetoha mofuta oa tšusumetso. Mehato e le 'ngoe ea li-radial axial flow impact turbine e sebelisoa haholo lisebelisoa tsa karohano ea moea. Jenereithara ea karohano ea moea ea cryogenic ea moea e na le lisebelisoa tse rarahaneng, sebaka se seholo, litšenyehelo tse phahameng tsa meaho, matsete a nako e le 'ngoe ho lisebelisoa, litšenyehelo tse phahameng tsa ts'ebetso, tlhahiso e liehang ea khase (lihora tse 12 ho isa ho tse 24), litlhoko tse phahameng tsa ho kenya, le potoloho e telele. Ha ho nahanoa ka lisebelisoa, lisebelisoa le lintlha tsa motheo, tekanyo ea matsete ea thepa ea PSA e nang le litlhaloso tse tšoanang bakeng sa lisebelisoa tse ka tlase ho 3500Nm3 / h ke 20% ho ea ho 50% e tlase ho feta ea lisebelisoa tsa karohano ea moea oa cryogenic. Sesebelisoa sa jenereithara sa naetrojene ea cryogenic se loketse tlhahiso ea naetrojene ea indasteri e meholo, empa tlhahiso ea naetrojene e mahareng le e nyane ha e na moruo.
Nako ea poso: Feb-27-2024
