Cov tshuab tsim pa oxygen thiab nitrogen PSA (Pressure Swing Adsorption) yog qhov tseem ceeb hauv ntau yam lag luam, thiab kev nkag siab txog lawv cov lus cog tseg, lub zog ntawm thev naus laus zis, kev siv, nrog rau kev saib xyuas thiab kev ceev faj siv yog qhov tseem ceeb rau cov neeg siv khoom.
Feem ntau cov khoom siv lav rau cov tshuab hluav taws xob no suav nrog cov khoom tseem ceeb xws li cov pej thuam nqus dej, cov qhov dej, thiab cov tshuab tswj hwm rau 12-24 lub hlis, kom ntseeg tau tias muaj kev tiv thaiv tiv thaiv cov teeb meem tsim khoom. Kev saib xyuas tsis tu ncua, xws li kev hloov lim dej thiab kev kuaj xyuas lub kaw lus, feem ntau yog qhov yuav tsum tau ua kom cov lus lav siv tau. Cov neeg muag khoom muaj koob npe kuj muab cov kev xaiv lav ntev rau cov khoom tseem ceeb, uas qhia txog kev ntseeg siab rau cov khoom siv ruaj khov.
Cov thev naus laus zis PSA sawv tawm rau nws qhov kev ua haujlwm zoo thiab kev ywj pheej. Nws siv cov adsorbents (xws li molecular sieves) los cais cov pa roj ntawm huab cua, tshem tawm qhov xav tau rau cov txheej txheem cryogenic. Qhov no ua rau kev siv hluav taws xob tsawg dua, cov qauv tsim me me, thiab lub sijhawm pib sai - feem ntau hauv ob peb feeb. PSA systems kuj hloov kho tau yooj yim rau ntau yam kev xav tau, ua rau lawv zoo tagnrho rau ob qho tib si me me thiab cov nroj tsuag loj.
Lawv daim ntawv thov dav dav. Cov tshuab tsim pa oxygen PSA txhawb nqa kev kho mob (rau kev kho pa oxygen), kev kho dej khib nyiab (aeration), thiab kev txiav hlau. Lub sijhawm no, cov tshuab tsim pa nitrogen siv rau hauv kev ntim khoom noj (kev khaws cia), khoom siv hluav taws xob (inert atmospheric), thiab kev ua tshuaj lom neeg (tiv thaiv kev oxidation).
Thaum nws los txog rau kev saib xyuas, kev tshuaj xyuas tsis tu ncua ntawm lub lim cua nkag mus yog qhov tseem ceeb kom tiv thaiv cov hmoov av thiab cov khib nyiab kom tsis txhob nkag mus rau hauv lub kaw lus, uas tuaj yeem ua rau cov adsorbents puas tsuaj. Cov adsorbents lawv tus kheej yuav tsum tau kuaj xyuas tsis tu ncua rau kev puas tsuaj, thiab hloov pauv thaum lawv cov kev ua haujlwm poob qis kom ntseeg tau tias cov pa roj huv zoo tshaj plaws. Cov li qub yuav tsum tau kuaj xyuas seb puas muaj qhov xau thiab ua haujlwm kom raug, vim tias cov li qub tsis zoo tuaj yeem cuam tshuam rau kev ua haujlwm ntawm cov txheej txheem hloov pauv siab. Tsis tas li ntawd, lub kaw lus tswj hwm yuav tsum tau calibrated tsis tu ncua kom tswj tau qhov ua haujlwm raug.
Rau kev siv, nws yog ib qho tseem ceeb uas yuav tsum ua haujlwm lub tshuab hluav taws xob hauv qhov siab thiab qhov kub uas tau teev tseg. Kev ua dhau cov kev txwv no tuaj yeem ua rau kev ua haujlwm tsis zoo thiab txawm tias ua rau cov khoom puas tsuaj. Ua ntej pib, xyuas kom meej tias txhua qhov kev sib txuas yog nruj thiab ruaj ntseg kom tsis txhob muaj roj xau. Thaum lub sijhawm ua haujlwm, saib xyuas qhov huv ntawm cov roj thiab qhov ntws tas li kom pom txhua yam tsis zoo tam sim ntawd. Yog tias muaj kev kaw, ua raws li cov txheej txheem kom raug kom tsis txhob muaj kev nce siab lossis kev puas tsuaj rau lub kaw lus.
Peb lub tuam txhab muaj 20 xyoo ntawm kev paub dhau los, thiab peb tau txhim kho kev txawj ntse hauv kev siv tshuab PSA, thiab xa cov txheej txheem tsim kho kom raug. Peb txoj kev ua haujlwm zoo ua kom ntseeg tau, thiab muaj kev pabcuam tom qab muag uas teb tau sai thiab muaj cov lus qhia txog kev saib xyuas kom meej. Peb caw cov neeg koom tes los koom tes, siv peb cov ntaub ntawv pov thawj los ua kom tau raws li ntau yam kev xav tau ntawm kev tsim roj thiab ua kom cov khoom siv ua haujlwm tau zoo mus ntev los ntawm kev saib xyuas kom zoo.
Yog tias koj xav paub ntxiv, thov hu rau peb dawb:
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