Embonini ye-petrochemical, ukugqwala kwamapayipi kubangela usongo olukhulu ekuphepheni kokusebenza, ukuvikelwa kwemvelo, nokusebenza kahle kwezomnotho. Amapayipi ngokuvamile athutha izinto ezigqwalile ezifana nowoyela ongahluziwe, igesi yemvelo, izinhlanganisela zesibabule, ama-acids, nama-alkali, okwenza ukuvimbela ukugqwala kwamapayipi kube yinto ehamba phambili yobunjiniyela. Lesi sihloko sihlola amasu asebenza kahle kakhulu okulwa nokugqwala kumapayipi e-petrochemical, okuhlanganisa ukukhethwa kwezinto, ukuvikelwa kwendawo, ukuvikelwa kwe-cathodic, nokuqapha ukugqwala.
Ukukhetha Okubalulekile: Umugqa Wokuqala Wokuvikela
Ukukhetha izinto ezimelana nokugqwala kwandisa kakhulu impilo yesevisi yamapayipi. Izinketho ezijwayelekile zifaka:
| Okubalulekile | Uhlobo | Izici Eziyinhloko | Indawo yohlelo lokusebenza |
|---|---|---|---|
| 316L | I-Austenitic Stainless Steel | Ukumelana okuhle komgodi; okushiselayo | Imithombo ye-Acidic, ukuchayeka kwe-chloride |
| S32205 / S32750 | I-Duplex / Super Duplex | Amandla aphezulu, ukumelana ne-chloride okuhle kakhulu | Offshore, amapayipi amanzi |
| Ikhodi 625/825 | I-Nickel Alloy | Ukumelana okukhethekile nama-acids aqinile nama-alkali | I-Desulfurization, amasistimu okushisa aphezulu |
| I-Carbon Steel ene-Linings | Insimbi Enomugqa | Okungabizi kakhulu, ukugqwala kuvikelwe ulayini | Amafutha anothile ngesulfure, imigqa yokucindezela okuphansi |
I-Surface Coating: Isithiyo Esingokomzimba Esimelene Nokugqwala
Izembozo zangaphandle nezangaphakathi zinikeza umgoqo ovikelayo ukuvimba izinto ezibolayo:
• I-coal tar epoxy coating:Indlela yendabuko yamapayipi agqitshiwe.
• I-Fusion Bonded Epoxy (FBE):Ukumelana nezinga lokushisa eliphezulu nokunamathela okuqinile.
• I-3-Layer PE / PP Coating:Isetshenziswa kakhulu kumapayipi okuhambisa amabanga amade.
Ulayini lwangaphakathi: Yehlisa ukumelana noketshezi futhi uvikele ekugqwaleni kwangaphakathi odongeni.
Ukulungiswa kahle kwendawo kanye nokusetshenziswa kubalulekile ekusebenzeni kahle kwalezi zingubo.
Ukuvikelwa kwe-Cathodic: I-Electrochemical Anti-Corrosion Technology
Ukuvikelwa kwe-Cathodic kuvimbela ukugqwala kwe-electrochemical ngokuphoqa indawo yepayipi ukuthi isebenze njenge-cathode:
• I-Sacrificial Anode System: Isebenzisa i-zinc, i-magnesium, noma i-aluminium anode.
• Isistimu yamanje ehlabeke umxhwele: Isebenzisa umthombo wamandla wangaphandle ukuze ifake amanje.
Le ndlela ivame ukusetshenziswa emaphayiphini angcwatshwe nangaphansi kolwandle, ngokuvamile ahlanganiswe nezimbotshana ukuze kusebenze kahle kakhulu.
Ukuqapha Ukugqwala Nokunakekela
Ukuqapha okuvamile kuvumela ukutholwa kusenesikhathi kokugqwala, kunciphisa izingozi zokwehluleka:
• I-Electrochemical Resistance Probes kanye ne-Electrochemical Noise Monitoring ukuze kuhlaziywe ngesikhathi sangempela;
• I-Ultrasonic Thickness Gauging ukuze kutholwe ukuncipha kodonga;
• Amakhuphoni Okugqwala okuhlolwa kwezinga lokugqwala ngokuhamba kwesikhathi.
Ukusungula ukuhlolwa okujwayelekile, amashejuli okuhlanza, nokwelashwa ngamakhemikhali kusiza ukugcina ubuqotho bepayipi.
Ukuhambisana Namazinga Omkhakha
Qinisekisa ukuthi umklamo wakho wepayipi kanye namasu okuvikela ahambisana nemithetho yamazwe ngamazwe:
I-TS EN ISO 21809 Amazinga okuhlanganisa angaphandle amapayipi ezimbonini ze-petroleum negesi yemvelo;
I-NACE SP0169 – Indlela yokuvikela i-Cathodic;
I-API 5L / ASME B31.3 – Ipayipi likalayini kanye nezinqubo zokwakhiwa kwamapayipi.
Isiphetho: Indlela Edidiyelwe Yokuvikela Isikhathi Eside
Ukuvikela ukugqwala kwepayipi okusebenzayo kudinga isu elinezendlalelo eziningi, okuhlanganisa:
• Ukukhetha izinto ezihlakaniphile,
• Amasistimu okunamathela aqinile,
• Ukuvikelwa okusebenzayo kwe-cathodic, kanye
• Izinhlelo ezinokwethenjelwa zokuqapha nokunakekela.
Ngokwamukela uhlelo olubanzi lokulawula ukugqwala, abaqhubi be-petrochemical banganciphisa ukuvalwa okungahleliwe, balule ubude besikhathi sempahla, futhi baqinisekise ukusebenza okuphephile, nokusebenza kahle.
Isikhathi sokuthumela: May-27-2025