Udidi lweMveliso
Ingqalelo yokugcina iiflaski zeDewar
Umhla: nge-25 kaSeptemba 2020
Xa kuthelekiswa nonikezelo lwegesi ye-cylinder yensimbi, ukunikezelwa kwegesi ye-Dewar kunenzuzo yomthamo omkhulu wokugcina, ukucoceka kwegesi ephezulu, ukuthutha okufanelekileyo, ukhuseleko oluphezulu, kunye neenzuzo zezoqoqosho. Ke ngoko, kuqhelekile ukuba abathengi basebenzise iiflaski zeDewar. Nantsi intshayelelo kwimiba efuna ingqwalasela ngexesha lokusetyenziswa kweDewar, ukuze abasebenzisi abatsha kwi-cylinder yegesi bakwazi ukuyiqonda kwaye bayiqonde.
1. Ubuncinane bobushushu berhasi (initrogen elulwelo, ioksijini elulwelo, iargon elulwelo okanye icarbon dioxide engamanzi) equlethwe kwiDewar inokuba yi-196 degrees. Ngoko ke, gwema ukudibanisa ngokuthe ngqo kwesikhumba ngegesi engamanzi ngexesha lokusetyenziswa kweenqanawa zoxinzelelo ukukhusela i-frostbite.
2. Xa uxinzelelo lwegesi kwiDewar luphezulu kakhulu, luya kukhulula uxinzelelo kwaye lukhuphe igesi. Ngoko ke, kuyimfuneko ukugcina indawo yokugcina umoya ukuze ugweme ukuxhatshazwa okubangelwa ukuxinwa okuphezulu kwegesi ekhutshwe kwisitya soxinzelelo. 
3. I-Flask ye-Dewar kufuneka ibekwe nkqo ngexesha lokusetyenziswa kunye nokuthutha ukuphepha ukuthambeka. Thintela ulwelo ekukhutshweni kwivalvu yokhuseleko, kubangela iqabaka kunye nomonakalo kwiDewar.
4. Kwinkqubo yokusebenzisa i-cylinder yegesi, amandla akufanele abe ngokugqithiseleyo xa uvula kwaye uvala i-valve. Xa iivalve kunye nemibhobho zikhenkceza ngenxa yobuninzi begesi esetyenzisiweyo, kufuneka zigalelwe ngamanzi ngaphambi kokuba ziphulwe, kwaye iinqanawa zoxinzelelo akufanele ziphulwe ngamandla.
1. Ubuncinane bobushushu berhasi (initrogen elulwelo, ioksijini elulwelo, iargon elulwelo okanye icarbon dioxide engamanzi) equlethwe kwiDewar inokuba yi-196 degrees. Ngoko ke, gwema ukudibanisa ngokuthe ngqo kwesikhumba ngegesi engamanzi ngexesha lokusetyenziswa kweenqanawa zoxinzelelo ukukhusela i-frostbite.
2. Xa uxinzelelo lwegesi kwiDewar luphezulu kakhulu, luya kukhulula uxinzelelo kwaye lukhuphe igesi. Ngoko ke, kuyimfuneko ukugcina indawo yokugcina umoya ukuze ugweme ukuxhatshazwa okubangelwa ukuxinwa okuphezulu kwegesi ekhutshwe kwisitya soxinzelelo.
4. Kwinkqubo yokusebenzisa i-cylinder yegesi, amandla akufanele abe ngokugqithiseleyo xa uvula kwaye uvala i-valve. Xa iivalve kunye nemibhobho zikhenkceza ngenxa yobuninzi begesi esetyenzisiweyo, kufuneka zigalelwe ngamanzi ngaphambi kokuba ziphulwe, kwaye iinqanawa zoxinzelelo akufanele ziphulwe ngamandla.
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