Le misebenzi elandelayo ayivumelekile kulabo asebehlale elabhorethri unyaka wonke.U-Xiao Bian uzihlele namuhla futhi wazidlulisela kuwo wonke umuntu ukuze azifunde!
1. Ibhomu lesiqandisi
Ngesikhathi sokukhipha noma i-dialysis, ama-reagents e-organic asetshenziswa futhi abekwe esiqandisini esivulekile.Njengoba igesi yemvelo ifinyelela ekugxiliseni okubucayi, ibaswa yinhlansi kagesi lapho i-compressor yesiqandisi iqalwa.
Ngo-October 6, 1986, kwaqhuma isiqandisi esikhungweni sokucwaninga se-Chinese Academy of Sciences;
Ngo-December 15, 1987, kwaqhuma isiqandisi endaweni yokucwaninga yaseNingxia Academy of Agricultural Sciences;
NgoJulayi 20, 1988, kwaqhuma isiqandisi se-“Shasong” emzini wothisha waseNanjing Normal University.
Eminyakeni embalwa nje, kwabikwa ukuqhuma kwamafriji okungaphezu kwe-10.Imbangela yengozi bekungelona izinga lesiqandisi ngokwaso, kodwa amakhemikhali afana ne-petroleum ether, i-acetone, i-benzene ne-butane gas afakwe esiqandisini.Siyazi ukuthi izinga lokushisa esiqandisini liphansi.Uma amakhemikhali avuthayo naqhuma anephuzu eliphansi lokubilisa kanye ne-flash point efakwa esiqandisini, azoshisa igesi evuthayo ngaphansi kwezimo eziphansi zokushisa.Ngisho noma isivalo sebhodlela sisonteke ngokuqinile, izinga lokushisa eliphansi ngokuvamile lizobangela ukuba igobolondo lebhodlela linciphe, i-valve yegesi ixege noma igobolondo lebhodlela liqhekeke.Igesi evuthayo evuthayo ixubana nomoya ukwenza ingxube eqhumayo bese igcwalisa isiqandisi.Inhlansi kagesi ekhiqizwa lapho isishintshi sokulawula izinga lokushisa (noma ezinye izishintshi zokulawula) ivulwa noma ivaliwe kulula kakhulu ukuqhuma.Ngakho-ke, abasebenzisi besiqandisi akufanele bagcine amakhemikhali esiqandisini.
2. Thela utshwala emlilweni ovulekile
Vula i-twist evuthayo yesibani sotshwala nge-pliers, futhi uthele utshwala esibani sotshwala ngesandla esisodwa, okungase kubangele lonke ibhodlela lotshwala lishise futhi liqhume.
3. Ibhomu le-nitrogen eliwuketshezi
Sebenzisa amashubhu e-centrifuge ekhava yengilazi nebhake ukupakisha amasampula bese uwafaka emathangeni enitrogen ayiketshezi.Lapho zikhishwa, izakhiwo zodonga lwamapayipi zishintshile, futhi azikwazi ukumelana nokucindezela kwegesi okwandayo, noma ukucindezela akulingani lapho kufudumala ngokushesha, kubangela ukuqhuma.
Ngakho-ke, abantu abagqoka izibuko banenzuzo - "Izibuko ezihlala isikhathi eside!"
Ama-opharetha avame ukwenza i-nitrogen ewuketshezi kufanele agqoke izibuko zepulasitiki.
I-Hazard Overview
Ingozi yezempilo: Lo mkhiqizo awushi futhi awuphefumuli, futhi ukuthintana kwesikhumba ne-nitrogen ewuketshezi kungase kubangele isithwathwa.Uma i-nitrogen ekhiqizwa ukuhwamuka ngokweqile ngaphansi kwezinga lokushisa elivamile, ukucindezela kwengxenye yomoya-mpilo emoyeni kuzokwehla, kubangele i-anoxic asphyxia.
Izinyathelo zosizo lokuqala
Ukuthintana nesikhumba: Uma kuba nesithwathwa, funa ukwelashwa.
Ukuhogela: shiya ngokushesha indawo emoyeni omusha futhi ugcine ukuphefumula kahle.Uma ukuphefumula kunzima, nikeza umoya-mpilo.Uma ukuphefumula kuyeka, yenza ukuphefumula okwenziwa ngokushesha futhi ufune iseluleko sezokwelapha.
Izinyathelo zokulwa nomlilo
Ingozi: Uma kushisa, ukucindezela kwangaphakathi kwesiqukathi kuzokhuphuka, okungabangela ukuqhekeka nokuqhuma.
Indlela yokucisha: Lo mkhiqizo awushi, futhi iziqukathi ezisendaweni yomlilo kufanele zigcinwe zipholile ngamanzi anenkungu.Ukuhwamuka kwe-nitrogen ewuketshezi kungasheshiswa ngokufafaza amanzi ngendlela yenkungu, futhi isibhamu samanzi ngeke sidubule i-nitrogen eyi-liquid.
Ukuvuza ukwelashwa okuphuthumayo
Ukwelashwa kwesimo esiphuthumayo: khipha ngokushesha abasebenzi endaweni engcolile uyiswe endaweni ebheke umoya, ubahlukanise, futhi ubeke umkhawulo wokufinyelela.Abasebenzi bezimo eziphuthumayo kufanele bagqoke ama-respirators okuphefumula kahle nezingubo ezibandayo.Ungathinti ukuvuza ngokuqondile.Sika umthombo wokuvuza ngangokunokwenzeka.Vimbela igesi ekuqoqeni ezindaweni eziphansi futhi iqhume lapho ihlangana nomthombo wokushisa.Sebenzisa isiphephetha-moya ukuthumela igesi evuzile endaweni evulekile.Izitsha ezivuzayo kufanele ziphathwe kahle, zilungiswe futhi zihlolwe ngaphambi kokusetshenziswa.
Ukuphatha nokugcina
Izinyathelo zokuqapha ukusebenza: ukusebenza okuvaliwe, ukuhlinzeka ngezimo ezinhle zokungenisa umoya zemvelo.Ama-operators kumele aqeqeshwe futhi alandele ngokuqinile izinqubo zokusebenza.Kunconywa ukuthi opharetha bagqoke amagilavu okuvikela abandayo.Vimbela ukuvuza kwegesi emoyeni endaweni yokusebenza.Amasilinda kanye nezinsiza kufanele ziphathwe ngokucophelela ukuvikela ukulimala.Hlomisa izisetshenziswa eziphuthumayo zokuvuza.
Izinyathelo zokuvikela ukugcina: Gcina endaweni epholile futhi enomoya omuhle, futhi izinga lokushisa akufanele lidlule ku-50 ℃.
Ukuvikelwa komuntu siqu
Ukuvikelwa kwesistimu yokuphefumula: akukho ukuvikelwa okukhethekile okudingekayo ngokuvamile.Kodwa-ke, lapho ukugcwala komoyampilo womoya endaweni yokusebenza kungaphansi kuka-19%, kufanele kugqokwe ama-air respirators, ama-oxygen respirators namashubhu amade.
Ukuvikela iso: gqoka imaski yokuphepha.
Ukuvikela isandla: gqoka amagilavu okufakazela abandayo.
Okunye ukuvikela: Gwema ukuhogela umoya omningi ukuze uvimbele isithwathwa.
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Kuzoqhutshwa
Isikhathi sokuthumela: Oct-08-2022