Cryogenic kua yog cov khoom uas khaws cia ntawm qhov kub thiab txias, feem ntau qis dua -150 degrees Celsius. Cov kua dej no, suchjson.Queue li kua nitrogen, kua helium, thiab kua oxygen, yog siv rau ntau yam kev lag luam, kev kho mob, thiab kev tshawb fawb. Txawm li cas los xij, khaws cia cov kua cryogenic yuav tsum tau saib xyuas tshwj xeeb thiab ceev faj vim lawv qhov kub tsis tshua muaj siab thiab muaj peev xwm ua rau muaj kev phom sij.
Txhawm rau khaws cov kua cryogenic kom nyab xeeb, nws yog ib qho tseem ceeb uas yuav tsum tau siv cov ntim tshwj xeeb thiab cov txheej txheem cia tsim los tswj cov huab cua kub no. Ib hom ntim khoom siv raukhaws cia cov kua cryogenicyog lub tshuab nqus tsev-insulated dewar. Cov dewars no muaj ib lub nkoj sab hauv uas tuav cov kua cryogenic, ncig los ntawm lub nkoj sab nraud nrog lub tshuab nqus tsev ntawm ob. Lub tshuab nqus tsev no ua haujlwm ua cov rwb thaiv tsev kom cov kua dej ntawm nws qhov kub thiab txias thiab tiv thaiv kom tsis txhob kub nkag mus rau hauv lub thawv.
Thaum twgkhaws cia cryogenic kua nyob rau hauv ib tug dewar, Nws yog ib qho tseem ceeb los xyuas kom meej tias lub thawv khaws cia nyob rau hauv ib qho chaw zoo-ventilated los tiv thaiv cov tsub zuj zuj ntawm cov roj uas yuav evaporate los ntawm cov kua. Tsis tas li ntawd, qhov chaw cia khoom yuav tsum tau nruab nrog lub tshuab ntsuas roj thiab lub tshuab ua pa kom saib xyuas thiab tshem tawm cov roj evaporated.
Nws tseem yog ib qho tseem ceeb los tswj cov kua dej cryogenic nrog kev saib xyuas kom tsis txhob muaj kev phom sij. Thaum sau cov dewar nrog cov kua cryogenic, cov txheej txheem yuav tsum tau ua nyob rau hauv qhov chaw uas muaj cua zoo, thiab cov khoom siv tiv thaiv tus kheej kom zoo, xws li hnab looj tes thiab tsom iav, yuav tsum hnav. Tsis tas li ntawd, cov txheej txheem filling yuav tsum tau ua los ntawm cov neeg ua haujlwm cob qhia uas paub txog kev tuav thiab khaws cia cov kua cryogenic.
Ntxiv nrog rau kev siv cov ntim khoom kom raug thiab tuav cov txheej txheem, nws tseem ceeb heev uas yuav tsum ua raws li cov lus qhia tshwj xeeb rau kev khaws cia ntau hom kua cryogenic. Piv txwv li, kua nitrogen, uas yog feem ntau siv nyob rau hauv lub chaw soj nstuam thiab chaw kho mob, yuav tsum tau muab cia rau hauv ib tug zoo-ventilated qhov chaw nyob deb ntawm qhov chaw ntawm ignition. Nws tseem yog ib qho tseem ceeb los xyuas kom meej tias qhov chaw cia khoom yog nruab nrog cov cuab yeej siv los tiv thaiv kom tsis txhob muaj kev kub ntxhov ntau hauv lub thawv.
Thaum khaws cia cov kua helium, uas feem ntau yog siv rau hauv kev tshawb fawb cryogenic thiab superconducting daim ntaub ntawv, nws yog ib qho tseem ceeb uas yuav tsum tau khaws cia qhov chaw zoo-ventilated thiab tsis muaj cov ntaub ntawv combustible. Tsis tas li ntawd, yuav tsum tau ceev faj kom tsis txhob muaj kev kub ntxhov ntau dhau ntawm lub thawv ntim khoom, vim tias cov kua helium tuaj yeem nthuav dav sai thaum sov.
Rau khaws cia cov pa oxygen, uas yog siv rau hauv kev kho mob thiab kev lag luam, kev ntsuas kev nyab xeeb tshwj xeeb yuav tsum tau ua raws li nws cov khoom oxidizing. Qhov chaw cia khoom yuav tsum muaj qhov cua zoo thiab tsis muaj cov khoom siv hluav taws xob, thiab yuav tsum tau ceev faj kom tsis txhob muaj cov pa oxygen-enriched, uas tuaj yeem ua rau muaj hluav taws kub.
Ntxiv nrog rau ua raws li cov lus qhia no, nws yog ib qho tseem ceeb uas yuav tsum tau ua tib zoo tshuaj xyuas thiab tswj cov thawv ntim khoom thiab cov cuab yeej siv rau cov kua dej cryogenic. Qhov no suav nrog kev tshuaj xyuas cov cim qhia ntawm kev puas tsuaj lossis kev hnav, kom ntseeg tau tias cov cuab yeej siv lub siab ua haujlwm zoo, thiab saib xyuas cov qib ntawm cov kua cryogenic hauv cov ntim kom tsis txhob muaj dej ntau dhau.
Zuag qhia tag nrho, khaws cia cov kua cryogenic yuav tsum tau ua tib zoo saib xyuas kom meej thiab ua raws li cov txheej txheem kev nyab xeeb tshwj xeeb. Los ntawm kev siv cov thawv kom raug, cov txheej txheem tuav, thiab cov txheej txheem khaws cia, cov kev phom sij cuam tshuam nrog cov kua dej cryogenic tuaj yeem txo qis, tso cai rau lawv siv tau zoo thiab siv tau ntau yam kev siv.
Post lub sij hawm: Mar-14-2024
