Olu xwebhu lujolise ekunciphiseni ukuvulwa ngengozi kweevalvu ezisetyenziswa ngesandla kwiinkqubo zokukhenkcisa ze-ammonia.
Njengenxalenye yesicwangciso sokulawula amandla, i-International Ammonia Refrigeration Institute (IIAR) ikhuphe uthotho lweengcebiso zokuthintela ukuvulwa ngengozi kweevalvu ezisetyenziswa ngesandla kwiinkqubo zokufriji ze-ammonia (R717).
Inguqulelo yokuqala yesindululo-Izikhokelo zokuphuhlisa izicwangciso zokulawula amandla kwiivalvu ezenziwe ngesandla kwiinkqubo zokuphola ze-ammonia-amalungu e-IIAR angayithenga nge-$150, kwaye abo bangengawo amalungu bangayithenga nge-$300.
Ulawulo lwevalvu yesandla lulolawulo lwamandla ayingozi, oludla ngokubizwa ngokuba yinkqubo yokutshixa/ukutsalela (LOTO). Ngokwewebhusayithi yeYunivesithi yase-Iowa Environmental Health and Safety, oku kunokukhusela abasebenzi ekulimaleni okanye ekubulaweni kukusebenza ngengozi okanye ukukhululwa kwamandla agciniweyo xa kugcinwa kwaye kulungiswa oomatshini, iinkqubo, kunye neenkqubo.
Amandla ayingozi anokuba ngumbane, i-hydraulic, i-pneumatic, i-mechanical, i-chemical, i-thermal, okanye eminye imithombo. "Ukulandela iindlela ezifanelekileyo ze-LOTO kunye neenkqubo kunokukhusela abasebenzi ekukhutshweni kwamandla ayingozi," yongeza iwebhusayithi yeYunivesithi yase-Iowa.
Ukususela oko i-US Occupational Health and Safety Administration (OSHA) yamisela umthetho wolawulo lwamandla anobungozi (ukutshixa/uluhlu) ngo-1989, amashishini amaninzi aqalise iinkqubo zolawulo lwamandla ze-LOTO. Kodwa ezi zihlala zigxile kumandla ombane nawoomatshini ayingozi; ngokutsho kwe-IIAR, ishishini le-HVAC&R alicaci kakuhle ngokuvulwa ngengozi kweevalvu ezisetyenziswa ngesandla, nto leyo ebangela ukuvuza okuninzi kwe-ammonia.
Isikhokelo esitsha sijolise “ekuzaliseni umsantsa kushishino” kwaye sinike abanini kunye nabaqhubi beevalvu zesandla ze-R717 ezisetyenziswa ngesandla iingcebiso ezilungileyo zendlela yokusebenzisa izicwangciso zokulawula amandla.
Ixesha lokuthumela: Agasti-21-2021
