Risks Liquid Nitrogen
Kev raug rau cov kua nitrogen nthuav tawm ntau yam kev pheej hmoo, suav nrog kev tawg, asphyxiation, thiab kub kub cryogenic. Kev tawg: Vim tias cov kua nitrogen muaj qhov ntim nthuav dav ntawm kwv yees li 1: 700 (piv txwv li, 1 liter ntawm cov kua nitrogen ua rau kwv yees li 700 litres ntawm cov pa nitrogen thaum vaporized), yuav tsum tau ceev faj heev thaum tuav iav ntim; nitrogen npuas tuaj yeem tawg iav, tsim cov khoom tawg tuaj yeem ua rau raug mob. Suffocation: Cov kua nitrogen muaj qhov vapor ntom ntawm kwv yees li 0.97, uas txhais tau hais tias nws tsis ntom dua li huab cua thiab yuav ntim rau ntawm qhov chaw ntawm qhov kub thiab txias. Hauv qhov chaw kaw, qhov sib txuam no depletes oxygen qib hauv huab cua, tsim kom muaj kev phom sij. Qhov kev phom sij ua rau muaj kev phom sij ntau ntxiv los ntawm qhov tseeb tias cov kua nitrogen tsim cov huab cua zoo li huab cua thaum tso tawm sai. Cryogenic Burns: raug rau cov kua nitrogen los yog nitrogen vapor, tshwj xeeb tshaj yog rau ntawm daim tawv nqaij lossis ob lub qhov muag, txawm tias luv luv, tuaj yeem ua rau kub hnyiab, frostbite, cov ntaub so ntswg puas, thiab txawm tias qhov muag puas.
Kev txo qis kev pheej hmoo
1 Qhov cua
Tag nrho cov kua nitrogen warehouses yuav tsum muaj qhov cua zoo thiab yuav tsum tau nruab nrog ib tug txuas tso pa system los tiv thaiv nitrogen tsub zuj zuj thiab oxygen depletion, txo txoj kev pheej hmoo ntawm suffocation. Lub kaw lus tso tawm yuav tsum tsim nyog rau cov roj cua kub qis thiab txuas nrog cov pa oxygen concentration xyuas kom paub seb cov pa oxygen poob qis dua 19.5%. Thaum cov ntsiab lus ntawm cov pa oxygen qis dua tus qauv, lub tshuab tso pa yuav cia li pib ua kom huab cua hloov pauv. Tsis tas li ntawd, lub tswb nrov sab nraud yuav tsum tau muab tso rau sab nraud ntawm chav tsev kom lub suab nrov thiab lub teeb ceeb toom thaum lub tsev tsis zoo.
2 Kev nyab xeeb ntawm tus kheej
Qee cov kua nitrogen depots yuav pab cov neeg ua haujlwm nrog cov neeg saib xyuas cov pa oxygen thiab txais yuav ib qho kev pabcuam, uas yog, cov neeg ua haujlwm tsuas tuaj yeem nkag mus rau hauv khub, yog li txo lub sijhawm ib tus neeg siv hauv cov kua nitrogen. Kev cob qhia cov neeg ua haujlwm ntawm qhov system thiab nws cov khoom siv kuj tseem ceeb heev. Cov neeg ua haujlwm yuav tsum hnav cov cuab yeej tiv thaiv tus kheej tsim nyog (PPE) txhawm rau tiv thaiv qhov kub thiab txias, xws li tsom iav, hnab looj tes / ris tsho, khau tsim nyog thiab cov tsho hauv chav kuaj, thiab lwm yam. Txhua tus neeg ua haujlwm yuav tsum tau txais kev pabcuam thawj zaug txog kev tiv thaiv qhov kub thiab txias, thiab Nws yog qhov zoo tshaj kom muaj dej sov nyob ze los yaug daim tawv nqaij thaum muaj qhov kub hnyiab.
3 Kev tu
Ob qho tib si cov kua nitrogen muab lub tank thiab cov kua nitrogen lom lub thawv yuav tsum tau ua cov kev saib xyuas cuam tshuam. Ntawm lawv, yuav tsum tau kuaj xyuas qhov xwm txheej ntawm qhov dej hose, thiab thawj-kaw valve yuav tsum tau kuaj xyuas lossis hloov raws li qhov tsim nyog.
Thaum lub sij hawm kev soj ntsuam thiab tu txhua hnub, nws yog ib qho tsim nyog yuav tsum tau xyuas seb lub thawv puas muaj dej khov thiab Frost los xyuas qhov nqus ntawm lub tank.
Ua tib zoo xav txog txhua yam thiab ua haujlwm tsis tu ncua thiab kev saib xyuas kom ntev lub neej kev pabcuam ntawm lub thawv.
Xaus
Ua kom muaj kev nyab xeeb ntawm kev siv cov kua nitrogen cia yog qhov tseem ceeb, thiab thaum muaj ntau yam kev xav txog kev nyab xeeb tau teev tseg saum toj no, txhua qhov chaw cia cov kua nitrogen yuav tsum tau ua nws tus kheej qhov kev pheej hmoo ntawm kev ntsuam xyuas los daws cov kev xav tau tshwj xeeb thiab muaj peev xwm txaus ntshai. Ua haujlwm nrog tus kws tshaj lij cov khoom siv txias txias xws li Haier Biomedical yog qhov tseem ceeb kom ua tau zoo thiab nyab xeeb raws li qhov xav tau ntawm qhov kub thiab txias. Los ntawm kev tso kev nyab xeeb ua ntej, ua raws li cov kev coj ua zoo tshaj plaws, thiab ua haujlwm nrog cov kws tshaj lij uas ntseeg siab, cov chaw cia cov kua nitrogen tuaj yeem tswj tau qhov chaw ruaj ntseg cryopreservation los tiv thaiv cov qauv kev ua me nyuam muaj nuj nqis thaum ua kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm.