Mbale zachitsulo za SA516 GR 70 Pressure Vessel

Chitsulo chachitsulo cha pressure vessel chimakwirira mitundu yosiyanasiyana ya zitsulo zomwe zimapangidwa kuti zigwiritsidwe ntchito mu chidebe cha pressure, ma boiler, kusinthana kwa kutentha ndi chidebe china chilichonse chomwe chili ndi gasi kapena madzi pamphamvu kwambiri. Zitsanzo zodziwika bwino ndi monga masilinda a gasi ophikira ndi kuwotcherera, masilinda a okosijeni odumphira m'madzi ndi matanki ambiri akuluakulu achitsulo omwe mumawona mu fakitale yoyeretsera mafuta kapena fakitale ya mankhwala. Pali mitundu yambiri yosiyanasiyana ya mankhwala ndi madzi omwe amasungidwa ndikukonzedwa pansi pa mphamvu. Izi zimayambira pazinthu zopanda poizoni monga mkaka ndi mafuta a kanjedza mpaka mafuta osakonzedwa ndi gasi wachilengedwe ndi ma distillates awo mpaka ma acid ndi mankhwala oopsa kwambiri monga methyl isocyanate. Chifukwa chake, mwa njira izi zimafunika kuti gasi kapena madzi azikhala otentha kwambiri, pomwe ena amakhala nawo pa kutentha kochepa kwambiri. Chifukwa chake pali mitundu yosiyanasiyana ya mitundu yosiyanasiyana ya zitsulo za pressure vessel zomwe zimakwaniritsa zochitika zosiyanasiyana zogwiritsidwa ntchito.

Kawirikawiri izi zitha kugawidwa m'magulu atatu. Pali gulu la mitsuko ya chitsulo cha carbon steel pressure. Izi ndi zitsulo zokhazikika ndipo zimatha kuthana ndi ntchito zambiri pomwe pali dzimbiri lochepa komanso kutentha kochepa. Popeza kutentha ndi dzimbiri zimakhudza kwambiri mbale zachitsulo, chromium, molybdenum ndi nickel zimawonjezedwa kuti zipereke kukana kowonjezereka. Pomaliza, pamene % ya chromium, nickel ndi molybdenum ikuwonjezeka, mumakhala ndi mbale zachitsulo zosapanga dzimbiri zomwe zimagwiritsidwa ntchito kwambiri komanso komwe kuipitsidwa kwa oxide kuyenera kupewedwa - monga m'mafakitale azakudya ndi mankhwala.