I-Liquid nitrogen (LN2) idlala indima ebalulekile emhlabeni wosizo lobuchwepheshe bokuzala, njenge-ejenti ehamba phambili ye-cryogenic yokugcina izinto eziyigugu zebhayoloji, njengamaqanda, isidoda, nemibungu.Inikeza amazinga okushisa aphansi kakhulu kanye nekhono lokugcina ubuqotho beselula, i-LN2 iqinisekisa ukulondolozwa kwesikhathi eside kwalezi zibonelo ezithambile.Kodwa-ke, ukuphatha i-LN2 kubangela izinselele eziyingqayizivele, ngenxa yezinga lokushisa elibandayo kakhulu, izinga lokukhula ngokushesha kanye nezingozi ezingaba khona ezihlobene nokuhamba komoyampilo.Hlanganyela nathi njengoba sicwaninga ezinyathelweni ezibalulekile zokuphepha kanye nezinqubo ezingcono kakhulu ezidingekayo ukuze kugcinwe indawo yokulondoloza i-cryo evikelekile nephumelelayo, abasebenzi abavikelayo, kanye nekusasa lokwelashwa kokuzala.
Haier Biomedical Liquid Nitrogen Storage Solution
Ukunciphisa Izingozi Ekusebenzeni Kwegumbi Le-Cryogenic
Kukhona ubungozi obuhlukahlukene obuhambisana nokuphathwa kwe-LN2, okuhlanganisa ukuqhuma, ukuqunjelwa, kanye nokusha kwe-cryogenic.Njengoba isilinganiso somthamo womthamo we-LN2 sicishe sibe ngu-1:700 - okusho ukuthi ilitha elingu-1 le-LN2 lizohwamuka ukuze kukhiqizwe amalitha angama-700 egesi ye-nitrogen - ukunakekelwa okukhulu kufanele kuthathwe lapho kusingathwa izitsha zengilazi;ibhamuza lenitrogen lingaphihliza ingilazi, lidale izingcezu ezingadala ukulimala.Ukwengeza, i-LN2 ine-vapor density engaba ngu-0.97, okusho ukuthi iminyene kancane kunomoya futhi izohlanganisana ezingeni eliphansi lapho izinga lokushisa liphansi kakhulu.Lokhu kunqwabelana kubangela ingozi yokuphefumula umoya ezindaweni ezivalekile, kuqede izinga le-oxygen emoyeni.Izingozi zokuphefumula ziphinde zengezwe ukukhululwa okusheshayo kwe-LN2 ukuze kwakheke amafu enkungu ewumhwamuko.Ukuchayeka kulo mhwamuko obanda kakhulu, ikakhulukazi esikhumbeni noma emehlweni - ngisho kafushane - kungaholela ekushiseni okubandayo, isithwathwa, ukulimala kwezicubu noma ukulimala kwamehlo unomphela.
Izindlela Ezinhle Kakhulu
Wonke umtholampilo wokuzala kufanele wenze ukuhlolwa kwangaphakathi kwengozi mayelana nokusebenza kwegumbi lawo le-cryogenic.Izeluleko zokuthi kwenziwa kanjani lokhu kuhlola zingatholakala ezincwadini ze-Codes of Practice (CP) ezivela ku-British Compressed Gases Association.1 Ikakhulukazi, i-CP36 iwusizo ukweluleka ngokugcinwa kwamagesi e-cryogenic endaweni, futhi i-CP45 inikeza isiqondiso mayelana umklamo wegumbi lokugcina i-cryogenic.[2,3]
NO.1 Isakhiwo
Indawo ekahle yegumbi le-cryogenic yile enikeza ukufinyeleleka okukhulu kakhulu.Ukucatshangelwa ngokucophelela kokubekwa kwesiqukathi se-LN2 sokugcina kuyadingeka, njengoba kuzodinga ukugcwaliswa ngomkhumbi onomfutho.Okufanelekile, umkhumbi wokuphakela i-nitrogen owuketshezi kufanele ube ngaphandle kwegumbi lokugcina isampula, endaweni enomoya omuhle futhi evikelekile.Ukuze uthole izixazululo ezinkulu zokugcina, umkhumbi wokuhlinzeka uvame ukuxhunywa ngokuqondile emkhunjini wokugcina nge-hose yokudlulisa i-cryogenic.Uma isakhiwo sesakhiwo singakuvumeli umkhumbi wokuhlinzeka ukuba utholakale ngaphandle, ukunakekelwa okwengeziwe kufanele kuthathwe ngesikhathi sokuphatha i-nitrogen ewuketshezi, futhi ukuhlolwa okunemininingwane yobungozi kufanele kwenziwe, okuhlanganisa ukuqapha kanye nezinhlelo zokukhipha.
NO.2 Ukungenisa umoya
Wonke amakamelo e-cryogenic kufanele aphefumule kahle, anezinhlelo zokukhipha ukuvimbela ukwakheka kwegesi ye-nitrogen futhi avikele ekuncipheni komoya-mpilo, kuncishiswe ingozi yokuphefumula.Uhlelo olunjalo ludinga ukuba lufanele igesi ebanda kakhulu, futhi luxhunywe ohlelweni lokuqapha ukuqedwa komoya-mpilo ukuze kutholwe lapho izinga le-oxygen lehla ngaphansi kwamaphesenti angu-19.5, lapho lizoqala ukwanda kwezinga lokushintshana komoya.Amapayipi okudonsa kufanele abekwe ezingeni eliphansi kuyilapho izinzwa zokuncipha kufanele zibekwe cishe imitha elilodwa ngaphezu kwezinga lephansi.Kodwa-ke, ukuma okuqondile kufanele kunqunywe ngemva kohlolo oluningiliziwe lwesayithi, njengoba izici ezifana nosayizi wegumbi nokwakheka kuzothinta ukubekwa okufanele.I-alamu yangaphandle kufanele futhi ifakwe ngaphandle kwegumbi, inikeze kokubili izixwayiso zomsindo nezibonwayo ukuze zisho lapho kungaphephile ukungena.
NO.3 Ukuphepha Komuntu Siqu
Eminye imitholampilo ingase futhi ikhethe ukuhlomisa abasebenzi ngeziqapha komoyampilo womuntu siqu futhi isebenzise uhlelo lomngane lapho abantu beyoke bangene ngababili egumbini lokukhala, kuncishiswe isikhathi lapho umuntu oyedwa eba segumbini nganoma yisiphi isikhathi.Kungumsebenzi wenkampani ukuqeqesha abasebenzi ohlelweni lokugcinwa okubandayo kanye nemishini yalo futhi abaningi bakhetha ukuthi abasebenzi benze izifundo zokuphepha kwe-nitrogen ku-inthanethi.Abasebenzi kufanele bagqoke izinto zokuzivikela ezifanele (i-PPE) ukuze bavikele ekushisweni kwe-cryogenic, okuhlanganisa ukuvikela amehlo, amagilavu/ama-gauntlets, izicathulo ezifanele, nejazi laselabhu.Kubalulekile ukuthi bonke abasebenzi bathole ukuqeqeshwa kosizo lokuqala mayelana nendlela yokubhekana nokusha kwe-cryogenic, futhi kuhle ukuthi kube khona amanzi ayisivivi eduze ukuze kugezwe isikhumba uma kushile.
NO.4 Isondlo
Umkhumbi onomfutho kanye nesiqukathi se-LN2 azinazo izingxenye ezihambayo, okusho ukuthi ishejuli eyisisekelo yokulungisa yonyaka iyona kuphela edingekayo.Ngaphakathi kwalokhu, isimo se-cryogenic hose kufanele sihlolwe, kanye nanoma yikuphi ukushintshwa okudingekayo kwama-valve okukhululwa kokuphepha.Abasebenzi kufanele bahlale behlola ukuthi azikho yini izindawo zokuqhwalela - kungaba esitsheni noma kumkhumbi wokuphakelayo - okungase kubonise inkinga ngevacuum.Ngokucutshungulwa ngokucophelela kwazo zonke lezi zici, kanye nesimiso sokunakekela njalo, imikhumbi enengcindezi ingahlala iminyaka efinyelela kwengama-20.
Isiphetho
Ukuqinisekisa ukuphepha kwegumbi lomtholampilo wokuzala lapho kusetshenziswa khona i-LN2 kubaluleke kakhulu.Nakuba le bhulogi ichaze izinto ezihlukahlukene ezicatshangelwayo zokuphepha, kubalulekile ukuba umtholampilo ngamunye wenze ukuhlola kwawo kwangaphakathi ubungozi ukuze ubhekane nezidingo ezithile kanye nezingozi ezingaba khona.Ukubambisana nabahlinzeki abangochwepheshe ezitsheni zokugcina izinto ezibandayo, njenge-Haier Biomedical, kubalulekile ukuze kuhlangatshezwane nezidingo ze-cryostorage ngempumelelo nangokuphepha.Ngokubeka phambili ukuphepha, ukunamathela emikhubeni ehamba phambili, nokusebenzisana nochwepheshe abathenjwayo, imitholampilo yenzalo ingagcina indawo evikelekile yokulondoloza i-cryo, ivikele kokubili izisebenzi nokusebenza kwezinto zokuzala eziyigugu.
Izithenjwa
1.Amakhodi Wokuzilolonga - BCGA.Ifinyelele ngoMeyi 18, 2023. https://bcga.co.uk/pubcat/codes-of-practice/
2.Ikhodi Yokuzilolonga 45: Izinhlelo ze-Biomedical cryogenic storage.Ukuklama nokusebenza.I-British Compressed Gases Association.Ishicilelwe ku-inthanethi 2021. Yafinyelelwa ngomhla ka-Meyi 18, 2023. https://bcga.co.uk/wp-
3.content/uploads/2021/11/BCGA-CP-45-Original-05-11-2021.pdf
4.Ikhodi Yokusebenza 36: Isitoreji se-Cryogenic liquid emagcekeni abasebenzisi.I-British Compressed Gases Association.Ishicilelwe ku-inthanethi ngo-2013. Ifinyelele ngoMeyi 18, 2023. https://bcga.co.uk/wp-content/uploads/2021/09/CP36.pdf
Isikhathi sokuthumela: Feb-01-2024
