N'ime ụlọ ọrụ petrochemical, corrosion nke pipeline na-etinye ihe egwu dị egwu na nchekwa ọrụ, nchekwa gburugburu ebe obibi, na arụmọrụ akụ na ụba. Pipeline na-ebukarị ihe ndị na-emebi emebi dị ka mmanụ crude, gas sitere n'okike, ogige sọlfọ, acid na alkalis, na-eme ka mgbochi corrosion pipeline bụrụ ihe kacha mkpa injinia. Edemede a na-enyocha atụmatụ kachasị dị irè maka mgbochi corrosion na pipeline petrochemical, na-ekpuchi nhọrọ ihe, nchebe elu, nchebe cathodic, na nlekota corrosion.
Nhọrọ ihe: Usoro nchekwa nke mbụ
Ịhọrọ ihe ndị na-eguzogide corrosion na-agbatịkwu ndụ ọrụ nke pipeline. Nhọrọ ndị a na-ahụkarị gụnyere:
| Ihe onwunwe | Ụdị | Atụmatụ igodo | Ngwa gburugburu |
|---|---|---|---|
| 316L | Austenitic igwe anaghị agba nchara | Ezigbo nguzogide olulu; weldable | Mgbasa ozi acidic, ikpughe chloride |
| S32205 / S32750 | Duplex / Super Duplex | Ike dị elu, ezigbo nguzogide chloride | Offshore, brine pipeline |
| Inconel 625/825 | Nickel Alloy | Nguzogide pụrụ iche na acids na alkalis siri ike | Desulfurization, usoro okpomọkụ dị elu |
| Carbon Steel na Linings | Igwe eji eme ihe | Ọnụ ọnụ ahịa, corrosion na-echebe site na mkpuchi | Sulfur mmanụ bara ụba, ahịrị obere nrụgide |
Mkpuchi Elu: Ihe mgbochi anụ ahụ megide mmebi
Mkpuchi nke mpụga na nke dị n'ime na-enye ihe mgbochi iji gbochie ihe ndị na-emebi emebi:
• Coal tar epoxy mkpuchi:Usoro ọdịnala maka pipeline e liri.
• Epoxy jikọtara ọnụ (FBE):Nnukwu okpomọkụ na-eguzogide na ike adhesion.
• mkpuchi PE / PP 3-Layer:A na-eji ya maka pipeline nnyefe dị anya.
Ihe mkpuchi ime: Belata nguzogide mmiri ma chebe megide mmebi mgbidi dị n'ime.
Nkwadebe nke ọma na ngwa ngwa dị oke mkpa maka ịdị irè nke mkpuchi ndị a.
Nchedo Cathodic: Teknụzụ Mgbochi Nchikota Electrochemical
Nchedo Cathodic na-egbochi corrosion electrochemical site na ịmanye elu pipeline ka ọ rụọ ọrụ dị ka cathode:
• Sistemụ anode nke ịchụàjà: Na-eji zinc, magnesium, ma ọ bụ aluminom anodes.
Sistemụ dị ugbu a masịrị: Na-eji isi iyi ike mpụga tinye ugbu a.
A na-ejikarị usoro a eme ihe na pipeline eli na subsea, na-ejikọta ya na mkpuchi maka ịrụ ọrụ kacha mma.
Nleba anya na mmezi corrosion
Nleba anya mgbe niile na-enyere aka ịchọpụta corrosion n'oge, na-ebelata ihe egwu nke ọdịda:
• Nchọpụta Nguzogide Eletriki na Electrochemical Noise Monitoring maka nyocha oge;
• Ultrasonic ọkpụrụkpụ Gauging maka nchọpụta thinning mgbidi;
• Kupọns na-emebi emebi maka nyocha ọnụego corrosion ka oge na-aga.
Ịmepụta nyocha oge niile, nhazi nhazi, na ọgwụgwọ kemịkalụ na-enyere aka ịnọgide na-eguzosi ike n'ezi ihe nke pipeline.
Nrube isi na ụkpụrụ ụlọ ọrụ
Gbaa mbọ hụ na nhazi pipeline na atụmatụ nchekwa gị dabara n'ụkpụrụ mba ụwa:
TS EN ISO 21809 mkpuchi mkpuchi mpụga maka pipeline na ụlọ ọrụ mmanụ na gas;
NACE SP0169 - Usoro nchebe nke Cathodic;
API 5L / ASME B31.3 - Ọkpụkpọ ahịrị na nhazi ụkpụrụ iwu ihe owuwu.
Mmechi: Ụzọ ejikọtara ọnụ maka nchekwa ogologo oge
Nchedo corrosion pipeline dị irè chọrọ atụmatụ ọtụtụ, gụnyere:
• Nhọrọ ihe mara mma,
• Sistemụ mkpuchi siri ike,
• Nchedo cathodic na-arụ ọrụ, na
• Nleba anya na mmemme mmezi ntụkwasị obi.
Site n'inwe usoro njikwa corrosion zuru oke, ndị na-ahụ maka mmanụ petrochemical nwere ike belata mmechi na-enweghị atụmatụ, gbatịa ndụ akụ na ụba, wee hụ na arụ ọrụ adịghị mma na nke ọma.
Oge nzipu: Mee-27-2025