Lub neej yav tom ntej ntawm FD Technology
10 月 -20-2020
Lub neej yav tom ntej ntawm khov kom qhuav
Khov qhuav (lyophilization) tau siv rau ntau caum cov khoom noj thiab cov khoom siv roj ntsha, tab sis cov khoom khov-hom khov khov kho kom khov yog qeeb thiab siv zog. Tus tshiab 'nquag khov ua kom qhuav' cov txheej txheem cog lus rau tshem tawm cov teeb meem no.
Lub neej yav tom ntej ntawm khov kom qhuav
Keeb kwm ntawm khov kom qhuav rov qab mus rau lub incular inca, leej twg khaws cia qos yaj ywm thiab lwm yam zaub tsuas yog los ntawm kev ua rau lawv mus rau saum huab cua. Tsawg lub caij ntuj no txias muab cov dej nyob hauv cov zaub mov rau dej khov, uas tau evaporated nyob rau hauv lub roob roob qhuav heev. Thaum xyoo 1930s, muaj tshuab kom qhuav qhuav tau tsim los ua txoj hauv kev los khaws cov kas fes seem ntawm cov teb chaws xws li Brazil. Nescafé thiab lwm hom npe nrov npe nrov tau tsim nyob rau lub sijhawm no, thiab kas fes tam sim no yog tam sim no zoo tshaj plaws-qhuav khoom. Thaum lub caij Tsov Rog Thoob Ntiaj Teb Zaum Ob, ua kom qhuav huv kuj tseem siv rau kev kho mob rau WarTime kho mob xws li penicillin thiab ntshav ntshav. Hauv cov hauv qab no xyoo hauv qab no Siv kom qhuav rau qhov chaw nyob rau hauv kev tsim ntawm 400 cov khoom noj khoom haus sib txawv thiab ntau yam khoom siv tshuaj.
Teeb meem nrog cov txheej txheem ib txwm muaj
Puas tau txij li xyoo 1930s, lag luam khov kom qhuav tau nyob ntawm ib hom khoom siv: lub tais hom khov dua. Nyob rau hauv ib lub tais khov khov tshuab qhuav, cov khoom yuav tsum tau qhuav yog muab tso rau ntawm cov txee thiab txhawb nqa ntawm cov txee txias thiab cua sov. Cov tais yog npaj nyob rau hauv ib chav uas txuas nrog lub tshuab nqus tsev.
Ua ntej, cov khoom siv khov ntawm atmospheric siab los ntawm txo qhov kub ntawm cov rhawv. Lub tshuab ziab yog tom qab kev khiav tawm mus rau lub siab ib txwm muaj nyob hauv thaj tsam 0.01-1 MBar. Cov cua sov maj mam thov rau cov txee ua rau cov dej khov ua rau cov dej khov hauv cov khoom kom yaj tsis dhau los ntawm cov kua theem (subtium). Lub tshuab nqus tsev sib sib zog ua rau qhov no los coj qhov chaw kub ntawm -20C lossis qis dua. Yog tias tsim nyog, piv txwv tias qhov chaw organic cov kuab tshuaj yog siv, cov kuab tshuaj tau zoo los ntawm lub tshuab nqus tsev tso pa tawm los ntawm qhov tsawg-kub condenser.
Txawm hais tias kev ua haujlwm zoo tshaj ntau xyoo lawm, tais lub tshuab nplaum muaj peb qhov tsis zoo. Ua ntej, chaw thau khoom thiab thau khoom yog ua haujlwm-ua kom muaj zog, tshwj xeeb tshaj yog vim muaj ntau pua cov tais. Thib ob, lub ncuav mog qab zib qhuav tshem tawm ntawm cov tais feem ntau yuav tsum tau sib tsoo los hloov nws rau cov khoom lag luam ntsuab dawb. Thib peb, qhov tsim ntawm 'daim tawv nqaij' ntawm cov khoom qhuav ntawm saum npoo ntawm lub tais thaiv kev hla ntawm vapor, ua txoj kev ua kom qeeb qeeb heev.
