NACE MR0175, inozivikanwawo se "Standard Material Requirements for Resistance to Sulfide Stress Cracking in Corrosive Petroleum Refining Environments," chiyero chakagadzirwa neNational Association of Corrosion Engineers (NACE) kugadzirisa nyaya ye sulfide stress cracking muindasitiri yemafuta negasi. Chiyero ichi chinopa gwara rekusarudza nekukodzera zvinhu zvinoshandiswa mumidziyo nezvikamu zvichasangana nemamiriro ezvinhu anoparadza mumabasa ekuchenesa peturu.
Kupwanya kwesimbi inonzi Sulfide stress cracking (SSC) imhando yekupwanya kunokonzerwa nehydrogen kunoitika musimbi nedzimwe alloys kana zvikasangana nehydrogen sulfide (H2S) uye kushushikana. Rudzi urwu rwekupwanya runogona kukonzera kutadza kukuru kwemidziyo uye kukonzera njodzi huru dzekuchengetedza uye zvakatipoteredza mumabasa ekuchenesa peturu. NACE MR0175 yakagadzirwa kuderedza njodzi yeSSC nekupa zvinodiwa pakusarudzwa uye kufanirwa kwezvinhu zvinodzivirira kupwanya kwesimbi inonzi sulfide stress cracking.
Mutemo uyu unosanganisira zvinhu zvakasiyana-siyana, zvinosanganisira simbi dzekabhoni nesimbi dzisina simbi yakawanda, simbi dzisina simbi, nickel alloys, nezvimwe zvinhu zvisingapindi ngura. Unopa gwara rekusarudza zvinhu, kurapwa nekupisa, miganhu yekuoma, uye zvinodiwa pakuedza kuona kuti zvinhu zvinoshandiswa mukuchenesa peturu hazvipindi sulfide stress cracking.
Chimwe chezvinhu zvakakosha zveNACE MR0175 kufanirwa kwezvinhu kuburikidza nekuyedza nekunyora magwaro. Mutemo uyu unotsanangura zvinodiwa pakuyedza, zvakaita sekuyedza kuomarara, kuyedza kudhonzwa, uye kuyedza kupwanya sulfide, kuratidza kuramba kwezvinhu pakupwanya sulfide. Pamusoro pezvo, mutemo uyu unoda kuti vagadziri vape magwaro, akadai semishumo yekuyedza zvinhu uye zvitupa zvekutevedzera mitemo, kuti vaone kuti zvinhu izvi zvinosangana nezvinodiwa neNACE MR0175.
NACE MR0175 inopawo gwara rekugadzira nekugadzira michina nezvimwe zvinhu kuti zvideredze njodzi yekutsemuka kwe sulfide. Izvi zvinosanganisira mazano ekugadzirisa simbi, kurapwa pamusoro pevhu, uye mamwe matanho ekudzivirira kutsemuka kunokonzerwa ne hydrogen mumunda.
Kutevedzera NACE MR0175 kwakakosha pakuona kuti michina nezvinhu zviri mumafuta zvinogadzirwa zvakanaka uye zvakavimbika. Nekusarudza nekugadzirisa zvinhu zvinoenderana nezvinodiwa, vashandi vanogona kuderedza njodzi yekupwanyika kwe sulfide stress uye kuona kuti nzvimbo dzavo dzakachengeteka uye dzinoshanda zvakanaka.
Mukupedzisa, NACE MR0175 ndiyo chiyero chakakosha kune indasitiri yemafuta negesi, ichipa gwara rekusarudza nekukodzera zvinhu zvisingakanganiswe nekupwanyika kwe sulfide munzvimbo dzinopisa peturu. Nekutevera zvinodiwa nechiyero ichi, vanoshanda vanogona kuderedza njodzi yekupwanyika kwe sulfide uye kuona kuti michina yavo nezvinhu zvavo zvakachena uye zvakavimbika. Kutevedzera NACE MR0175 kwakakosha pakuchengetedza kuchengetedzeka nekushanda zvakanaka kwemabasa ekuchenesa peturu.
Hikelok inogona kupa zvigadzirwa zvakasiyana-siyana zvinoenderana neNACE MR0175 standard, zvakaita seZvishandiso zveChubhu, Zvishandiso zvePombi, Mavharuvhu Ebhora, Mavharuvhu etsono, Mavharuvhu Ekutarisa, Mavharuvhu Ekubatsira, Masirinda emuenzaniso.
Kuti uwane rumwe ruzivo rwekuodha, ndapota tarisa sarudzo yachomakatarogupaWebhusaiti yepamutemo yaHikelokKana muine mibvunzo yekusarudza, ndapota taurai nevashandi vekutengesa veHikelok vanoshanda maawa makumi maviri nemana online.
Nguva yekutumira: Gunyana-03-2024