Cov pa roj nitrogen uas ua kua: Cov pa roj nitrogen nyob rau hauv cov kua. Inert, tsis muaj xim, tsis muaj ntxhiab, tsis xeb, tsis kub hnyiab, kub heev cryogenic. Nitrogen yog feem ntau ntawm huab cua (78.03% los ntawm qhov ntim thiab 75.5% los ntawm qhov hnyav). Nitrogen tsis ua haujlwm thiab tsis txhawb kev kub hnyiab. Frostbite tshwm sim los ntawm kev sib cuag endothermic ntau dhau thaum lub sijhawm ua pa.
Cov kua nitrogen yog ib qho chaw txias uas yooj yim siv. Vim nws cov yam ntxwv tshwj xeeb, cov kua nitrogen tau maj mam them sai sai thiab lees paub los ntawm tib neeg. Nws tau siv dav dua hauv kev yug tsiaj, kev lag luam kho mob, kev lag luam zaub mov, thiab kev tshawb fawb cryogenic. Hauv kev siv hluav taws xob, metallurgy, aerospace, kev tsim tshuab thiab lwm yam, daim ntawv thov tau nthuav dav thiab tsim kho.
Kev siv cov kua nitrogen hauv cov khoom noj khoom haus kom khov sai
Cov kua nitrogen khov ua ib txoj kev khaws cov khoom khov tau txais los ntawm cov tuam txhab ua zaub mov, vim nws tuaj yeem ua tiav qhov kub qis cryogenic super sai khov, tab sis kuj ua tiav ib feem ntawm kev hloov pauv iav ntawm cov khoom noj khov, ua rau cov khoom noj yaj rov qab mus rau nws lub xeev qub ntawm kev coj txawv txawv thiab cov khoom noj khoom haus qub, kev nce qib hnyav heev ntawm tus cwj pwm ntawm cov khoom noj khov, Yog li ntawd, nws qhia txog lub zog tshwj xeeb hauv kev lag luam khov sai. Piv nrog rau lwm txoj hauv kev khov, cov kua nitrogen khov sai muaj cov txiaj ntsig pom tseeb hauv qab no:
(1) Tus nqi khov sai (tus nqi khov yog li 30-40 npaug sai dua li txoj kev khov ib txwm muaj): kev lees txais cov kua nitrogen khov sai, tuaj yeem ua rau cov khoom noj sai sai los ntawm 0 ℃ ~ 5 ℃ thaj chaw loj hlob ntawm cov dej khov loj, cov neeg ua haujlwm tshawb fawb zaub mov tau ua cov kev sim muaj txiaj ntsig zoo hauv qhov no.
(2) Txuas tus cwj pwm ntawm cov khoom noj: vim yog lub sijhawm luv luv ntawm cov kua nitrogen, cov khoom noj khov los ntawm cov kua nitrogen tuaj yeem txuas nrog cov xim, aroma, saj thiab cov nqi khoom noj khoom haus ua ntej ua tiav mus rau qhov siab tshaj plaws. Cov txiaj ntsig tau qhia tias areca catechu kho nrog cov kua nitrogen muaj cov ntsiab lus chlorophyll ntau dua thiab zoo nkauj.
(3) kev siv cov khoom qhuav me me: feem ntau cov khoom siv khov qhuav poob tus nqi yog 3 ~ 6%, thiab cov kua nitrogen khov tuaj yeem tshem tawm mus rau 0.25 ~ 0.5%.
(4) Teem cov khoom siv xa tawm thiab kev siv hluav taws xob tsawg, yooj yim kom paub txog lub tshuab thiab cov kab sib dhos ua haujlwm, txhim kho kev tsim khoom.
Tam sim no, muaj peb txoj kev khov sai ntawm cov kua nitrogen, uas yog txau khov, dip khov thiab txias cua khov, ntawm cov tshuaj tsuag khov yog siv dav.
Kev siv cov kua nitrogen hauv kev ua dej haus
Tam sim no, ntau lub tuam txhab tsim dej haus tau txais kev sib xyaw nitrogen lossis nitrogen thiab C02 es tsis txhob siv C02 ib txwm muaj, los tuav cov dej haus ntim khoom uas muaj cua nkag tau. Cov dej haus uas muaj pa roj carbon ntau uas muaj nitrogen ua rau muaj teeb meem tsawg dua li cov uas muaj pa roj carbon dioxide xwb. Nitrogen kuj tseem xav tau rau cov dej haus hauv cov kaus poom xws li cawv txiv hmab thiab kua txiv hmab txiv ntoo. Qhov zoo ntawm kev ntim cov kaus poom dej haus uas tsis muaj cua nkag tau nrog cov kua nitrogen yog tias cov kua nitrogen me me uas txhaj rau hauv yuav tshem tawm cov pa oxygen ntawm qhov chaw saum toj kawg nkaus ntawm txhua lub kaus poom thiab ua rau cov roj tsis txav mus rau qhov chaw saum toj kawg nkaus ntawm lub tank cia, yog li ntawd ua rau lub neej cia khoom ntawm cov khoom noj uas lwj tau ntev dua.
Kev siv cov kua nitrogen hauv kev khaws cia thiab khaws cia cov txiv hmab txiv ntoo thiab zaub
Kev khaws cia cov kua nitrogen rau cov txiv hmab txiv ntoo thiab zaub muaj qhov zoo ntawm kev tswj huab cua, tuaj yeem kho cov khoom lag luam ua liaj ua teb thaum lub caij siab tshaj plaws thiab lub caij tsis muaj kev sib txawv ntawm kev muab khoom thiab kev thov, tshem tawm qhov poob ntawm kev khaws cia. Cov nyhuv ntawm cua txias yog los txhim kho qhov concentration ntawm nitrogen, tswj qhov sib piv ntawm nitrogen, oxygen thiab C02 roj, thiab ua rau nws txuas nrog lub xeev ruaj khov, ua pa tsawg ntawm txiv hmab txiv ntoo thiab zaub, ncua sijhawm tom qab siav, yog li cov txiv hmab txiv ntoo thiab zaub txuas nrog lub xeev txawv txawv ntawm kev khaws thiab cov nqi khoom noj khoom haus qub, txuas ntxiv qhov tshiab ntawm txiv hmab txiv ntoo thiab zaub.
Kev siv cov kua nitrogen hauv kev ua nqaij
Cov kua nitrogen siv tau los txhim kho cov khoom ntau ntxiv thaum lub sijhawm txiav, txiav, lossis sib tov nqaij. Piv txwv li, thaum ua cov nqaij salami, kev siv cov kua nitrogen tuaj yeem txhim kho kev khaws cia dej ntawm nqaij, tiv thaiv cov rog oxidation, txhim kho kev txiav thiab qhov zoo ntawm qhov chaw. Siv rau hauv kev ua cov nqaij rov ua dua xws li cov khoom qab zib nqaij thiab cov nqaij khaws cia, nws tsis tsuas yog ua kom cov qe dawb yaj sai dua thiab ua kom cov dej khaws cia thaum cov nqaij tsis meej pem, tab sis kuj tseem muaj txiaj ntsig zoo rau kev sib txuas cov duab tshwj xeeb ntawm cov khoom. Lwm cov khoom nqaij los ntawm cov kua nitrogen txias sai, tsis yog tsuas yog sib txuas ntxiv ntawm cov yam ntxwv nqaij kub, roj thiab xyuas kom meej tias cov nqaij noj qab haus huv thiab kev thaj yeeb nyab xeeb. Hauv cov txheej txheem ua khoom, tsis tas yuav txhawj txog qhov cuam tshuam ntawm qhov kub nce rau qhov zoo ntawm nqaij, thiab kev ua khoom tsis cuam tshuam los ntawm qhov kub ntawm cov khoom, lub sijhawm ua khoom, cov yam ntxwv ntawm lub caij, tab sis kuj tuaj yeem ua rau cov txheej txheem ua khoom ntawm qhov tsis muaj pa oxygen ib nrab siab, hauv qee qhov ntau thiab tsawg los txuas lub neej txee ntawm cov khoom.
Kev siv cov kua nitrogen hauv kev sib xyaw zaub mov ntawm qhov kub cryogenic
Kev sib tsoo kub cryogenic yog cov txheej txheem ntawm kev tawg ua hmoov nyob rau hauv qhov kev ua ntawm lub zog sab nraud, uas txias mus rau qhov kub ntawm embrittlement point. Kev sib tsoo kub cryogenic ntawm cov khoom noj yog ib qho kev txawj ua zaub mov tshiab uas tau loj hlob nyob rau hauv xyoo tas los no. Cov txuj ci no yog tsim rau kev ua cov khoom noj uas muaj ntau yam aromatic, cov rog ntau, cov suab thaj ntau thiab ntau yam gelatinous. Kev sib tsoo kub cryogenic nrog kev rau txim pov tseg nitrogen kua, tuaj yeem txawm tias cov khoom siv ntawm pob txha, tawv nqaij, nqaij, plhaub thiab lwm yam ib zaug tag nrho, yog li cov khoom tiav lawm me me thiab txuas nrog nws cov khoom noj khoom haus muaj txiaj ntsig. Yog tias Nyiv yuav khov los ntawm cov kua nitrogen seaweed, chitin, zaub, txuj lom, thiab lwm yam rau hauv lub grinder sib tsoo, tuaj yeem ua rau cov khoom tiav lawm me me txog li 100μm hauv qab no, thiab qhov txuas tseem ceeb rau cov khoom noj khoom haus qub. Tsis tas li ntawd, kev sib tsoo kub cryogenic nrog kua nitrogen kuj tseem tuaj yeem sib tsoo cov khoom uas nyuaj rau sib tsoo ntawm chav tsev kub, cov khoom uas rhiab heev rau cua sov thiab yooj yim puas tsuaj thaum cua sov thiab yooj yim rau kev soj ntsuam. Tsis tas li ntawd xwb, cov kua nitrogen siv tau los zom cov nqaij rog, cov zaub ntub thiab lwm yam khoom noj uas nyuaj rau zom ntawm qhov kub thiab txias, thiab siv tau los ua cov khoom noj tshiab.
Kev siv cov kua nitrogen hauv cov khoom noj khoom haus
Ib lub tuam txhab hauv London tau tsim ib txoj hauv kev yooj yim thiab siv tau los ua kom cov khoom noj tshiab los ntawm kev ntxiv ob peb tee dej nitrogen rau hauv lub ntim. Thaum cov kua nitrogen ua pa mus ua roj, nws qhov ntim sai sai nthuav dav, hloov pauv feem ntau ntawm cov roj qub hauv lub hnab ntim, tshem tawm cov khoom noj uas ua rau lwj los ntawm kev oxidation, yog li ua rau cov khoom noj tshiab ntev dua.
Kev siv cov kua nitrogen hauv kev thauj khoom noj hauv tub yees
Kev thauj mus los hauv lub tub yees yog ib feem tseem ceeb ntawm kev lag luam zaub mov. Kev txhim kho cov txuj ci kev txias kua nitrogen, kev loj hlob ntawm cov tsheb ciav hlau txias kua nitrogen, cov tsheb txias thiab cov thawv txias yog qhov kev loj hlob niaj hnub no. Kev siv cov txheej txheem txias kua nitrogen hauv cov teb chaws tsim tau ntau xyoo qhia tau hais tias cov txheej txheem txias kua nitrogen yog kev txawj khaws cia hauv lub tub yees uas tuaj yeem sib tw nrog cov txheej txheem txias tshuab hauv kev lag luam thiab kuj yog qhov kev loj hlob ntawm kev thauj mus los hauv lub tub yees zaub mov.
Lwm yam kev siv ntawm cov kua nitrogen hauv kev lag luam khoom noj
Ua tsaug rau qhov kev ua haujlwm txias ntawm cov kua nitrogen, kua qe, cov kua condiments, thiab kua ntses taum pauv tuaj yeem ua tiav rau hauv cov khoom noj khov uas yooj yim txav mus los thiab nchuav uas yooj yim nrhiav tau thiab yooj yim npaj. Thaum sib tsoo cov txuj lom thiab cov khoom noj uas nqus dej, xws li cov khoom hloov qab zib thiab lecithin, cov kua nitrogen raug txhaj rau hauv lub tshuab sib tsoo kom them tus nqi thiab ua kom cov khoom sib tsoo ntau ntxiv. Cov txiaj ntsig qhia tau tias phab ntsa paj ntoos tawg los ntawm kev tua cov kua nitrogen ua ke nrog kev yaj kub siab muaj cov yam ntxwv ntawm cov txiv hmab txiv ntoo zoo, phab ntsa tawg sai, nrawm nrawm, kev ua haujlwm ruaj khov ntawm paj ntoos thiab tsis muaj kuab paug.
Cov Khoom Siv Cryogenic HL
Cov Khoom Siv Cryogenic HLuas tau tsim muaj xyoo 1992 yog ib lub npe koom nrogHL Cryogenic Khoom Siv Tuam Txhab Cryogenic Equipment Co., Ltd. HL Cryogenic Equipment cog lus rau kev tsim thiab tsim cov High Vacuum Insulated Cryogenic Piping System thiab lwm yam khoom siv txhawb nqa kom tau raws li ntau yam kev xav tau ntawm cov neeg siv khoom. Lub Vacuum Insulated Pipe thiab Flexible Hose yog tsim los ntawm lub tshuab nqus tsev siab thiab ntau txheej ntau-screen tshwj xeeb insulated cov ntaub ntawv, thiab dhau los ntawm ntau yam kev kho mob nruj heev thiab kev kho lub tshuab nqus tsev siab, uas yog siv rau kev hloov cov kua oxygen, kua nitrogen, kua argon, kua hydrogen, kua helium, kua ethylene roj LEG thiab kua LNG.
Cov khoom lag luam ntawm Cov Yeeb Nkab Nqus Tsev, Cov Yeeb Nkab Nqus Tsev, Lub Qhov Dej Nqus Tsev, thiab Lub Tshuab Sib Cais Theem hauv HL Cryogenic Equipment Company, uas tau dhau los ntawm ntau yam kev kho mob nruj heev, yog siv rau kev hloov cov pa oxygen, nitrogen, argon, hydrogen, helium, LEG thiab LNG, thiab cov khoom no yog cov khoom siv rau cov khoom siv cryogenic (piv txwv li cov tank cryogenic, dewars thiab coldboxes thiab lwm yam) hauv kev lag luam ntawm kev sib cais huab cua, roj, aviation, electronics, superconductor, chips, automation assembly, khoom noj & dej haus, tshuaj, tsev kho mob, biobank, roj hmab, cov khoom siv tshiab tsim tshuaj engineering, hlau & hlau, thiab kev tshawb fawb thiab lwm yam.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-16-2021
