Liquid nitrogen (LN2) e bapala karolo ea bohlokoa lefats'eng la thekenoloji e thusang ho ba le bana, e le ntho e lebisang ho cryogenic bakeng sa ho boloka lisebelisoa tsa bohlokoa tsa baeloji, joalo ka mahe, peo ea botona le mahe.E fana ka mocheso o tlase haholo le bokhoni ba ho boloka botsitso ba liselefouno, LN2 e netefatsa paballo ea nako e telele ea mehlala ena e bobebe.Leha ho le joalo, ho sebetsana le LN2 ho hlahisa liphephetso tse ikhethang, ka lebaka la mocheso oa eona o batang haholo, sekhahla sa keketseho e potlakileng le likotsi tse ka bang teng tse amanang le phallo ea oksijene.Eba le rona ha re ntse re fuputsa mehatong ea bohlokoa ea polokeho le mekhoa e metle e hlokahalang ho boloka tikoloho e bolokehileng le e sebetsang hantle ea ho boloka cryo, ho sireletsa basebetsi, le bokamoso ba kalafo ea pelehi.
Haier Biomedical Liquid Storage Tharollo ea Nitrogen
Ho Fokotsa Likotsi Ts'ebetsong ea Kamore ea Cryogenic
Ho na le likotsi tse fapaneng tse amanang le ho ts'oaroa ha LN2, ho kenyelletsa ho phatloha, ho felloa ke matla le ho chesoa ke cryogenic.Kaha tekanyo ea katoloso ea molumo oa LN2 e ka ba 1:700 - ho bolelang hore litara e le 1 ea LN2 e tla fetoha mouoane ho hlahisa lilithara tse ka bang 700 tsa khase ea naetrojene - tlhokomelo e kholo e lokela ho nkoa ha u sebetsana le likhalase tsa khalase;bubble ea naetrojene e ka pshatla khalase, ea etsa likotoana tse khonang ho baka kotsi.Ho feta moo, LN2 e na le sekhahla sa mouoane se ka bang 0.97, ho bolelang hore ha e teteane ho feta moea 'me e tla phalla fatše ha mocheso o le tlase haholo.Ho bokellana hona ho baka kotsi ea ho felloa ke moea libakeng tse koaletsoeng, ho fokotsa boemo ba oksijene moeeng.Likotsi tsa asphyxiation li eketsoa hape ke ho lokolloa ka potlako ha LN2 ho theha maru a moholi oa mouoane.Ho pepesehela mouoane ona o batang haholo, haholo-holo letlalong kapa mahlong - leha e ka ba nakoana - ho ka lebisa ho chesoeng ke serame, serame, tšenyo ea linama kapa esita le tšenyo ea mahlo ka ho sa feleng.
Mekhoa e Molemo ka ho Fetisisa
Tleliniki e 'ngoe le e' ngoe ea tsoalo e lokela ho etsa tlhahlobo ea kotsi ea kahare mabapi le ts'ebetso ea kamore ea eona ea cryogenic.Keletso mabapi le mokhoa oa ho etsa litlhahlobo tsena e ka fumanoa likhatisong tsa Codes of Practice (CP) ho tsoa ho British Compressed Gases Association.1 Haholo-holo, CP36 e thusa ho eletsa mabapi le polokelo ea likhase tsa cryogenic onsite, mme CP45 e fana ka tataiso mabapi le moralo oa kamore ea polokelo ea cryogenic.[2,3]
NO.1 Moralo
Sebaka se loketseng sa kamore ea cryogenic ke se fanang ka phihlello e kholo.Ho hlokahala hore ho nahanoe ka hloko ho behoa ha sets'oants'o sa polokelo ea LN2, kaha ho tla hloka ho tlatsoa ka sekepe se nang le khatello.Ka mokhoa o loketseng, sejana sa phepelo ea naetrojene ea metsi se lokela ho behoa ka ntle ho kamore ea polokelo ea sampole, sebakeng se nang le moea o motle le se sireletsehileng.Bakeng sa litharollo tse kholoanyane tsa polokelo, sekepe sa phepelo se atisa ho hokahanngoa ka ho toba sekepeng sa polokelo ka hose ea ho fetisa cryogenic.Haeba sebopeho sa mohaho se sa lumelle sekepe sa phepelo hore se be teng ka ntle, tlhokomelo e eketsehileng e tlameha ho nkoa nakong ea ho sebetsana le naetrojene ea metsi, 'me ho lokela ho etsoa tlhahlobo e qaqileng ea kotsi, e kenyeletsang mekhoa ea ho hlahloba le ho ntša.
NO.2 Ho kenya moea
Likamore tsohle tsa cryogenic li tlameha ho ba le moea o motle, ka mekhoa ea ho ntša metsi ho thibela ho hahoa ha khase ea nitrogen le ho sireletsa khahlanong le ho senyeha ha oksijene, ho fokotsa kotsi ea ho tsuba.Tsamaiso e joalo e lokela ho ba e loketseng khase e batang ea cryogenically, 'me e hokahane le mokhoa oa ho shebella ho fokotseha ha oksijene ho lemoha ha boemo ba oksijene bo theoha ka tlase ho karolo ea 19.5, moo ho tla qala ho eketseha ha sekhahla sa phapanyetsano ea moea.Li-ducts tse ntšoang li lokela ho behoa fatše ha li-sensor tsa depletion li lokela ho behoa hoo e ka bang mithara e le 'ngoe ho tloha mokatong oa fatše.Leha ho le joalo, boemo bo nepahetseng bo lokela ho etsoa ka mor'a tlhahlobo e qaqileng ea sebaka, kaha lintlha tse kang boholo ba kamore le sebopeho li tla ama sebaka se nepahetseng.Alamo ea kantle e boetse e lokela ho kengoa kantle ho phaposi, e fana ka litemoso tse mameloang le tse bonoang ho supa ha ho sa sireletseha ho kena.
NO.3 Polokeho ea Motho
Litliliniki tse ling li ka boela tsa khetha ho hlomella basebetsi ka li-monitor tsa oksijene le ho sebelisa tsamaiso ea metsoalle eo ka eona batho ba tla kena ka bobeli ka kamoreng ea cryogenic, ho fokotsa nako eo motho a le mong a leng ka phaposing ka nako efe kapa efe.Ke boikarabello ba k'hamphani ho koetlisa basebetsi tsamaisong ea polokelo e batang le lisebelisoa tsa eona mme ba bangata ba khetha ho ba le basebetsi ba etsang lithuto tsa polokeho ea naetrojene inthaneteng.Basebeletsi ba lokela ho apara thepa e nepahetseng ea ho itšireletsa (PPE) ho itšireletsa khahlanong le ho chesa ha cryogenic, ho kenyeletsoa ts'ireletso ea mahlo, liatlana, lieta tse loketseng, le jase ea lab.Ho bohlokoa hore basebetsi bohle ba kene thupelong ea thuso ea pele mabapi le mokhoa oa ho sebetsana le ho chesa ha cryogenic, 'me ho loketse ho ba le phepelo ea metsi a foofo haufi le ho hlatsoa letlalo haeba ho cha.
NO.4 Tlhokomelo
Sekepe se hatelletsoeng le setshelo sa LN2 ha se na likarolo tse tsamaeang, ho bolelang hore kemiso ea selemo le selemo ea tokiso ke eona feela e hlokahalang.Ka hare ho sena, boemo ba hose ea cryogenic bo lokela ho hlahlojoa, hammoho le liphetoho leha e le life tse hlokahalang tsa li-valve tsa ho lokolla tšireletso.Basebeletsi ba lokela ho tsoela pele ho hlahloba hore na ha ho na libaka tsa serame - ebang ke ka har'a setshelo kapa ka har'a sejana sa phepelo - se ka supang bothata ka vacuum.Ka ho shebisisa lintlha tsena kaofela ka hloko, le kemiso ea kamehla ea tlhokomelo, likepe tse hatelletsoeng li ka tšoarella ho fihlela lilemo tse 20.
Qetello
Ho netefatsa polokeho ea phaposi ea tleliniki ea pelehi moo ho sebelisoang LN2 ho bohlokoa haholo.Leha blog ena e hlalositse lintlha tse fapaneng tsa polokeho, ho bohlokoa hore tleliniki ka 'ngoe e etse tlhahlobo ea eona ea ka hare ea kotsi ho sebetsana le litlhoko tse itseng le likotsi tse ka bang teng.Ho sebelisana 'moho le bafani ba litsebi ka lijaneng tsa polokelo tse batang, joalo ka Haier Biomedical, ho bohlokoa ho fihlela litlhoko tsa cryostorage ka katleho le ka polokeho.Ka ho etelletsa tšireletseho pele, ho latela mekhoa e metle, le ho sebelisana le litsebi tse tšepahalang, litleliniki tsa tsoalo li ka boloka tikoloho e sireletsehileng ea ho boloka cryo, ho sireletsa basebetsi le ho sebetsa ha thepa ea bohlokoa ea ho ikatisa.
Litšupiso
1.Mekhoa ea ho Itloaetsa - BCGA.E fihletsoe ka la 18 Motšeanong 2023. https://bcga.co.uk/pubcat/codes-of-practice/
2.Code of Practice 45: Mekhoa ea ho boloka li-biomedical cryogenic.Moralo le ts'ebetso.Mokhatlo oa British Compressed Gases Association.E phatlalalitsoe inthaneteng 2021. E fihletsoe ka la 18 Motšeanong 2023. https://bcga.co.uk/wp-
3.content/uploads/2021/11/BCGA-CP-45-Original-05-11-2021.pdf
4.Khoutu ea Mokhoa oa 36: Poloko ea mokelikeli oa cryogenic libakeng tsa basebelisi.Mokhatlo oa British Compressed Gases Association.E phatlalalitsoe inthaneteng 2013. E fihletsoe ka la 18 Motšeanong, 2023. https://bcga.co.uk/wp-content/uploads/2021/09/CP36.pdf
Nako ea poso: Feb-01-2024
