Liquid nitrogen (LN2) inoita basa rakakosha munyika yekubatsira tekinoroji yekubereka, seyekuenda-kune cryogenic agent yekuchengetedza zvinhu zvakakosha zvebhaibheri, senge mazai, urume, uye embryo.Inopa tembiricha yakaderera zvakanyanya uye kugona kuchengetedza kuvimbika kweserura, LN2 inochengetedza kuchengetedzwa kwenguva refu kweaya akatetepa emhando.Nekudaro, kubata LN2 kunounza matambudziko akasarudzika, nekuda kwekutonhora kwayo kwakanyanya, kukurumidza kuwedzera mwero uye njodzi dzinogona kuitika dzine chekuita nekutamiswa kweokisijeni.Joinha isu patinenge tichiongorora matanho akakosha ekuchengetedza uye maitiro akanakisa anodiwa kuchengetedza nharaunda yakachengeteka uye inoshanda ye cryo kuchengetedza, kuchengetedza vashandi, uye remangwana rekurapa mbereko.
Haier Biomedical Liquid Nitrogen Storage Solution
Kuderedza Njodzi muKushanda kweKamuri yeCryogenic
Kune njodzi dzakasiyana siyana dzine chekuita nekubata kweLN2, kusanganisira kuputika, kufemereka, uye kutsva kwe cryogenic.Sezvo huwandu hwekuwedzera kwehuwandu hweLN2 hunenge hwe1: 700 - zvinoreva kuti 1 litre yeLN2 ichaputika kuti ibudise marita anenge mazana manomwe enitrogen gasi - kutarisirwa kukuru kunoda kutorwa pakubata magirazi egirazi;bubble renitrogen rinogona kupwanya girazi, richigadzira shards inogona kukuvadza.Pamusoro pezvo, LN2 ine mhute yehutsi ingangoita 0.97, zvichireva kuti haina kusimba pane mhepo uye inodzika pamwero wepasi kana tembiricha yakadzikira.Kuungana uku kunokonzeresa njodzi yeasphyxiation munzvimbo dzakavharirwa, ichipedza mwero weokisijeni mumhepo.Njodzi dzeAsphyxiation dzinowedzerwa nekukasira kuburitswa kweLN2 kugadzira mhute yemakore.Kuratidzwa kune iyi mhute inotonhora zvakanyanya, kunyanya paganda kana mumaziso - kunyangwe muchidimbu - inogona kutungamira mukupiswa nechando, chando, kukuvara kwenyama kana kukuvara zvachose kweziso.
Maitiro Akanakisisa
Yese kiriniki yekubereka inofanirwa kuita yemukati njodzi yekuongorora maererano nekushanda kwekamuri yayo ye cryogenic.Mazano ekuita ongororo idzi anogona kuwanikwa muzvinyorwa zveCodes of Practice (CP) kubva kuBritish Compressed Gases Association.1 Kunyanya, CP36 inobatsira kupa mazano pamusoro pekuchengetwa kwemagasi ecryogenic panzvimbo, uye CP45 inopa hutungamiri pamusoro pe dhizaini yekamuri yekuchengetera cryogenic.[2,3]
NO.1 Kurongeka
Imba ye cryogenic yakanakira nzvimbo ndiyo inopa yakanyanya kuwanikwa.Kunyatsotariswa kwekuiswa kweiyo LN2 mudziyo wekuchengetera kunodiwa, sezvo zvichizoda kuzadza kuburikidza nemudziyo wakamanikidzwa.Nenzira yakanaka, mudziyo wenitrogen wemvura unofanirwa kunge uri kunze kwekamuri yekuchengetera sampuli, munzvimbo inofefeterwa uye yakachengeteka.Kune zvigadziriso zvakakura zvekuchengetedza, mudziyo wekugovera unowanzo kubatanidzwa zvakananga kumudziyo wekuchengetera kuburikidza nehose yekutamisa cryogenic.Kana marongerwo echivakwa asingatenderi mudziyo wekupa kuti uwanikwe kunze, kutarisirwa kwakawedzerwa kunofanirwa kutorwa panguva yekubata nitrogen yemvura, uye kuongororwa kwakadzama kwengozi kunoda kuitwa, kunosanganisira kutarisa uye kuburitsa masisitimu.
NO.2 Kufefetedza
Makamuri ose e-cryogenic anofanira kunge akazara nemhepo, ane maitiro ekuchera kudzivirira nitrogen gasi kuvaka-up uye kudzivirira kubva pakuparara kweokisijeni, kuderedza ngozi yekufema.Sistimu yakadaro inoda kuve yakakodzera gasi rinotonhora rinotonhora, uye rakabatana neokisijeni kupera kwekutarisa sisitimu yekuona kana mwero weokisijeni uchidonha pasi pe19.5 muzana, mune iyo nyaya ichatanga kuwedzera kwekuchinja kwemhepo.Kubvisa ma ducts anofanirwa kunge ari padanho repasi apo depletion sensors inofanirwa kuiswa ingangoita 1 mita pamusoro peyero yepasi.Nekudaro, chaiyo yekumisikidzwa inofanirwa kusarudzwa mushure mekuongorora kwakadzama saiti, sezvo zvinhu zvakaita sehukuru hwekamuri uye marongero zvichakanganisa kuiswa kwakaringana.Alarm yekunze inofanirawo kuiswa kunze kwekamuri, ichipa zvese zvekuteerera uye zvekuona yambiro kuratidza kana isina kuchengetedzeka kupinda.
NO.3 Personal Safety
Mamwe makiriniki anogonawo kusarudza kupa vashandi mamonitor eokisijeni ega uye kushandisa buddy system umo vanhu vanozongopinda mukamuri ye cryogenic vari vaviri vaviri, kuderedza nguva iyo munhu mumwechete ari mukamuri chero nguva.Iro ibasa rekambani kudzidzisa vashandi pane inotonhora yekuchengetedza sisitimu nemidziyo yayo uye vazhinji vanosarudza kuve nevashandi vanoita online nitrogen kuchengetedza makosi.Vashandi vanofanirwa kupfeka midziyo yekudzivirira yakafanira (PPE) kudzivirira kupiswa kwe cryogenic, kusanganisira dziviriro yemaziso, magurovhosi/majeti, shangu dzakakodzera, uye jasi rerabhoritari.Izvo zvakakosha kuti vashandi vese vapihwe rubatsiro rwekutanga nezve maitiro ekuita nekutsva kwe cryogenic, uye zvakafanira kuve nekupihwa kwemvura inodziya padhuze nekusuka ganda kana kutsva kwaitika.
NO.4 Maintenance
Chikepe chakamanikidzwa uye chigadziko cheLN2 hachina zvikamu zvinofamba, zvichireva kuti chirongwa chekugadzirisa chegore negore ndicho chete chinodiwa.Mukati meizvi, mamiriro eiyo cryogenic hose inofanira kutariswa, pamwe chete nekutsiviwa kwakakosha kwemavharuvhu ekudzivirira.Vashandi vanofanira kuramba vachitarisa kuti hapana nzvimbo dzechando - mungave mugaba kana pamudziyo wekudyisa - izvo zvinogona kuratidza dambudziko nevhayumu.Nekunyatsotariswa kwezvinhu zvese izvi, uye hurongwa hwekugadzirisa nguva dzose, midziyo yakamanikidzwa inogona kugara kwemakore anosvika makumi maviri.
Mhedziso
Kuve nechokwadi chekuchengetedzeka kwekamuri yekuchengetedza yekiriniki yembereko panoshandiswa LN2 kwakakosha zvakanyanya.Nepo iyi bhurogu yakatsanangura zvakasiyana-siyana zvekuchengetedza, zvakakosha kuti kiriniki yega yega iite ongororo yayo yemukati yenjodzi kugadzirisa zvakatemwa uye njodzi dzinogona kuitika.Kudyidzana nevanopa nyanzvi mumidziyo yekuchengetera inotonhora, senge Haier Biomedical, kwakakosha kuzadzisa zvinodiwa cryostorage zvinobudirira uye zvakachengeteka.Nekukoshesa kuchengetedzwa, kuomerera kumaitiro akanakisa, uye nekubatana nenyanzvi dzinovimbwa, makiriniki ekuzvara anogona kuchengetedza nharaunda yakachengeteka yekuchengetedza cryo, kuchengetedza vashandi vese uye kushanda kwezvinhu zvakakosha zvekubereka.
References
1.Codes of Practice - BCGA.Yakasvika May 18, 2023. https://bcga.co.uk/pubcat/codes-of-practice/
2.Code of Practice 45: Biomedical cryogenic storage systems.Kugadzira uye kushanda.British Compressed Gases Association.Rakadhindwa pamhepo 2021. Yakasvika Chivabvu 18, 2023. https://bcga.co.uk/wp-
3.content/uploads/2021/11/BCGA-CP-45-Original-05-11-2021.pdf
4.Code of Practice 36: Cryogenic liquid kuchengetedza panzvimbo yevashandisi.British Compressed Gases Association.Rakadhindwa pamhepo 2013. Yakapinda Chivabvu 18, 2023. https://bcga.co.uk/wp-content/uploads/2021/09/CP36.pdf
Nguva yekutumira: Feb-01-2024
