Ngaphambi kokuqonda lokhu okuqukethwe, kudingeka sazi ngaphansi kwaziphi izimo okufanele sithathe izinyathelo zokuvalwa kwezimo eziphuthumayo zemishini ye-Steam Generator.
Lapho sithola ukuthi izinga lamanzi lemishini liphansi kunowo onqenqemeni lwengxenye engezansi yengxenye yamanzi egeji, lapho izinga lamanzi liyaqhubeka nokulahla, futhi amazinga amanzi awatholakali ngemuva kokudonsa amanzi, impompo yokuhlinzeka ngamanzi yehluleka ngokuphelele noma uhlelo lokuhlinzekwa kwamanzi luyehluleka ngokuphelele noma uhlelo lokuhlinzeka ngamanzi luhluleka. I-boiler ayikwazi ukuhambisa amanzi, wonke ama-gauges afinyelela amanzi anephutha, izingxenye zemishini zilimele, zibeka engcupheni ukuphepha kwabasebenza kanye nemishini yokuvutha izinsiza noma ezinye izimo ezingemthetho zibeka engcupheni ukusebenza okujwayelekile kwe-generator ye-Steam.
Lapho uhlangabezana nalezi zimo, izinqubo zokuvala eziphuthumayo kufanele zamukelwe ngesikhathi: Masinyane zilandele umyalo wokuhlinzeka ngamafutha kanye negesi, zinciphise umoya ophumayo, bese uvala ngokushesha i-valve ephumayo, bese unciphisa umfutho we-effet.
Ngesikhathi sokusebenza okungenhla, ngokuvamile akudingekile ukuhambisa amanzi kwimishini. Ikakhulu endabeni yokuvalwa kwezimo eziphuthumayo ngenxa yokushoda kwamanzi noma amanzi agcwele, anqatshelwe ngokuphelele ukuhambisa amanzi ku-boiler ukuvimba amazinga okushisa amaningi nokucindezela okusheshayo noma amapayipi. kanye nokwanda. Izindlela zokuphepha zokumisa izimo eziphuthumayo: Inhloso yemisebenzi yokumisa eziphuthumayo ukuvikela ukwanda okwengeziwe kwengozi futhi kunciphise ukulahleka kwezingozi nezingozi. Ngakho-ke, lapho wenza imisebenzi yokuvalwa kwezimo eziphuthumayo, kufanele uhlale uzolile, qala uthole imbangela, bese uthatha izinyathelo kwisizathu esiqondile. Lokhu okungenhla kuyizinyathelo ezijwayelekile ezisebenza ngokujwayelekile, futhi kuzophathwa izimo ezikhethekile ngokuya nge-Contingency.