Cryogenic tso tsheb hlau luam, raws li lawv lub npe qhia, yog tsim los khaws cov ntaub ntawv ntawm qhov kub thiab txias. Tab sis muaj ntau dua rau cov tso tsheb hlau luam ntau dua li qhov muag. Ib qho ntawm qhov txaus nyiam tshaj plaws yog seb lawv puas muaj zog. Cia peb delve rau hauv qhov nyuaj ntawm cryogenic tank tsim thiab ua haujlwm los teb cov lus nug no.
Cryogenic tso tsheb hlau luam yog siv los khaws cov ntaub ntawv ntawm qhov kub thiab txias hauv qab khov, feem ntau ntawm cov kua nitrogen kub (-196 degree) lossis qis dua. Lawv tuaj nyob rau hauv ntau yam duab thiab ntau thiab tsawg, nyob ntawm daim ntawv thov. Tab sis li cas txog lawv lub siab?
Cov lus teb rau seb cov tso tsheb hlau luam cryogenic puas yog nyob ntawm qhov tsim tshwj xeeb thiab xav siv. Cia peb tshawb txog ob lub ntsiab ntawm cov tso tsheb hlau luam cryogenic kom nkag siab qhov no zoo dua.
Vented Cryogenic Tanks: Cov tso tsheb hlau luam no tsis muaj zog. Lawv yog tsim los tso cai rau cov kua cryogenic evaporate maj mam, tso pa tawm los ntawm lub qhov cua. Txoj kev tso pa tawm no pab tswj qhov kub xav tau hauv lub tank los ntawm kev tshem tawm cov evaporated cryogen. Lub siab nyob rau hauv cov tso tsheb hlau luam no tseem nyob ze rau atmospheric siab thaum cov pa tawm.
Pressurized Cryogenic Tanks: Nyob rau hauv sib piv rau vented tso tsheb hlau luam, cov tso tsheb hlau luam yog tsim los ua hauj lwm nyob rau hauv siab dua. Lawv tau nruab nrog lub siab-resistant linings thiab reinforced lug tiv thaiv lub internal siab. Pressurized cryogenic tso tsheb hlau luam feem ntau yog siv thaum lub cryogen muaj qhov tsis tshua muaj vapor siab lossis thaum yuav tsum tau khaws cov pa roj uas tsis yooj yim liquified ntawm atmospheric siab.
Vim li cas qhov txawv ntawm qhov siab?
Qhov sib txawv ntawm qhov siab ntawm qhov tso pa tawm thiab cov tso tsheb hlau luam uas muaj cua txias yog tshwm sim los ntawm cov khoom ntawm cov khoom siv cryogen thiab cov kev cia tshwj xeeb. Vented tso tsheb hlau luam yog tsim rau cryogens nrog siab dua vapor pressures, xws li kua nitrogen los yog kua helium. Cov cryogens no muaj lub ntuj xav kom evaporate ntawm qhov kub thiab txias, tsim kom muaj lub siab nyob hauv lub tank. Los ntawm kev tso cov pa roj no, lub tank tuaj yeem tswj tau qhov kub thiab txias yam tsis muaj siab dhau.
Ntawm qhov tod tes, cov tso tsheb hlau luam siab yog qhov tsim nyog thaum khaws cia cov cryogens uas tsis tshua muaj vapor pressures lossis gases uas yuav tsum tau muaj zog ntau dua rau kev khaws cia. Piv txwv li, kua oxygen los yog kua argon yog khaws cia nyob rau hauv lub siab nyob rau hauv lub tso tsheb hlau luam cryogenic kom tswj lawv lub xeev cov kua. Cov cryogens no muaj qis dua vapor pressures, yog li lawv yuav tsum tau muaj zog los xyuas kom meej lawv ruaj khov ntawm qhov kub thiab txias.
Txawm hais tias lawv tau raug tso tawm los yog muaj zog, cov tso tsheb hlau luam cryogenic ua lub luag haujlwm tseem ceeb hauv ntau yam kev tshawb fawb, kev lag luam, thiab kev siv kho mob. Lawv ua rau cov kws tshawb fawb thiab cov kws tshaj lij kev lag luam khaws cia thiab tswj cov ntaub ntawv ntawm qhov kub thiab txias rau ntau yam kev siv, los ntawm kev khaws cov tshuaj tiv thaiv thiab cov qauv kho mob kom khaws cov khoom qub qub thiab txawm tias lub foob pob hluav taws hauv qhov chaw tshawb nrhiav.
Hauv kev xaus, cov lus teb rau seb cov tso tsheb hlau luam cryogenic puas yog nyob ntawm lawv qhov tshwj xeeb tsim thiab npaj siv. Vented tso tsheb hlau luam ua haujlwm ze rau atmospheric siab, thaum lub tso tsheb hlau luam pressurized yog tsim los tiv taus siab dua sab hauv rau cov ntawv tshwj xeeb. Kev nkag siab txog cov kev xav tau ntawm cov tso tsheb hlau luam cryogenic yog qhov tseem ceeb rau kev ua kom lawv txoj kev nyab xeeb thiab ua haujlwm tau zoo hauv ntau qhov xwm txheej txias-kub cia.