Kwishishini lepetrochemical, ukubola kwemibhobho kubangela ingozi enkulu kukhuseleko lokusebenza, ukhuseleko lokusingqongileyo kunye nokusebenza kakuhle kwezoqoqosho. Imibhobho isoloko ithutha izinto ezidlekayo ezifana ne-oyile ekrwada, igesi yendalo, iikhompawundi zesulfure, iiasidi, neealkali, nto leyo eyenza uthintelo lomhlwa lwemibhobho ibe yeyona nto iphambili kubunjineli. Eli nqaku liphonononga ezona zicwangciso zisebenzayo zokuchasana ne-corrosion kwimibhobho ye-petrochemical, ukugubungela ukukhethwa kwezinto, ukukhuselwa kwendawo, ukukhuselwa kwe-cathodic, kunye nokubeka iliso kwi-corrosion.
Ukukhethwa kwezinto eziphathekayo: Umgca wokuQala woKhuselo
Ukukhetha izinto ezinganyangekiyo kwi-corrosion kwandisa kakhulu ubomi benkonzo yemibhobho. Iinketho eziqhelekileyo ziquka:
| Izinto eziphathekayo | Uhlobo | Ezona mpawu | Ubume besicelo |
|---|---|---|---|
| 316L | Intsimbi yeAustenitic engatyiwa | Ukuchasana kakuhle komgodi; inokuweldable | Imithombo ye-Acidic, i-chloride exposure |
| S32205 / S32750 | Duplex / Super Duplex | Amandla aphezulu, ukumelana nekloride egqwesileyo | Ngaphandle konxweme, imibhobho yamanzi anetyuwa |
| Ikhoneli 625/825 | I-Nickel Alloy | Ukuxhathisa okukhethekileyo kwiiasidi ezinamandla kunye nealkali | I-Desulfurization, i-high-temp systems |
| Intsimbi yeCarbon eneLinings | Lined Steel | Ixabiso eliphantsi, umhlwa okhuselweyo ngelinen | Ioli enesulfure, imigca ephantsi yoxinzelelo |
Ukwaleka koMphezulu: Isithintelo soMzimba ngokuchasene nokuMdla
Iingubo zangaphandle kunye nezangaphakathi zibonelela ngomqobo okhuselayo wokuthintela izinto ezitshabalalisayo:
• Ukwalekwa kwetha yetha epoxy:Indlela yemveli kwimibhobho engcwatyiweyo.
• Fusion Bonded Epoxy (FBE):Ukumelana nobushushu obuphezulu kunye nokubambelela ngamandla.
• I-3-Layer PE / PP Coating:Isetyenziswa kakhulu kwimibhobho yothumelo lomgama omde.
I-internal linings: Ukunciphisa ukuxhathisa ulwelo kunye nokukhusela kwi-corrosion yangaphakathi yodonga.
Ukulungiswa okufanelekileyo komphezulu kunye nokusetyenziswa kubaluleke kakhulu ekusebenzeni kwezi zambatho.
Ukukhuselwa kweCathodic: I-Electrochemical Anti-Corrosion Technology
Ukukhuselwa kweCathodic kuthintela ukubola kwe-electrochemical ngokunyanzela umphezulu wepayipi ukuba usebenze njenge-cathode:
• Inkqubo ye-Anode yombingelelo: Isebenzisa i-zinc, i-magnesium, okanye i-anode ye-aluminium.
• Isixokelelwano sangoku esiVunyiweyo: Isebenzisa umthombo wamandla wangaphandle ukusebenzisa langoku.
Le ndlela idla ngokusetyenziswa kwimibhobho engcwatyiweyo nangaphantsi kolwandle, ehlala idityaniswa neengubo zokusebenza kakuhle.
UkuJonga ukuMhlwa kunye noLondolozo
Ukubeka iliso rhoqo kwenza ukuba kubonwe kwangethuba umhlwa, kunciphisa umngcipheko wokusilela:
• IiProbe zoMbane zokuChasa kunye nokuJonga i-Electrochemical Noise Monitoring ukwenzela uhlalutyo lwexesha lokwenyani;
• I-Ultrasonic Thickness Gauging ukuze kufunyaniswe ukucolwa kodonga;
• Iikhuphoni zoMhlwa zovavanyo lwesantya sokutya ekuhambeni kwexesha.
Ukuseka ukuhlolwa okuqhelekileyo, iishedyuli zokucoca, kunye nonyango lweekhemikhali kunceda ukugcina ingqibelelo yombhobho.
Ukuthotyelwa kweMigangatho yoShishino
Qinisekisa uyilo lwakho lwemibhobho kunye nezicwangciso zokukhusela zihambelana nemimiselo yamazwe ngamazwe:
I-ISO 21809-Imigangatho yokugquma yangaphandle yemibhobho kwimizi-mveliso yepetroleum kunye negesi yendalo;
I-NACE SP0169 – Iikhrayitheriya zokukhuselwa kweCathodic;
I-API 5L / ASME B31.3 – Umbhobho womgca kunye nemigangatho yokwakhiwa kwemibhobho yenkqubo.
Isiphelo: Indlela eDityanisiweyo yoKhuseleko lweXesha elide
Ukhuseleko lomhlwa lwemibhobho olusebenzayo lufuna isicwangciso esinamaleko amaninzi, kuquka:
• Ukukhetha imathiriyeli ngobuchule,
• Iinkqubo zokugquma ezomeleleyo,
• Ukhuseleko lwecathodic olusebenzayo, kunye
• Iinkqubo ezithembekileyo zokubeka iliso nokugcinwa kwazo.
Ngokwamkela inkqubo yokulawula umhlwa, abaqhubi bepetrochemical banokucutha ukuvalwa okungacwangciswanga, bandise ubomi be-asethi, kwaye baqinisekise ukusebenza ngokukhuselekileyo, nokusebenza kakuhle.
Ixesha lokuposa: May-27-2025