Indastering ea petrochemical, ho bola ha liphaephe ho beha tšokelo e kholo ts'ireletsong ea ts'ebetso, ts'ireletso ea tikoloho le katleho ea moruo. Hangata liphaephe li tsamaisa lintho tse senyang tse kang oli e tala, khase ea tlhaho, metsoako ea sebabole, li-acid le alkalis, e leng se etsang hore thibelo ea ho bola ha liphaephe e be eona ntho ea bohlokoa ka ho fetisisa ea boenjiniere. Sengoliloeng sena se hlahloba maqheka a sebetsang ka ho fetesisa a ho thibela kutu liphaepheng tsa petrochemical, ho koahela khetho ea thepa, ts'ireletso ea bokaholimo, ts'ireletso ea cathodic, le tlhahlobo ea kutu.
Khetho ea Boitsebiso: Mohala oa Pele oa Tšireletso
Ho khetha lisebelisoa tse thibelang kutu ho eketsa haholo bophelo ba litšebeletso tsa liphaephe. Likhetho tse tloaelehileng li kenyelletsa:
| Lintho tse bonahalang | Mofuta | Likarolo tsa Bohlokoa | Tikoloho ea Kopo |
|---|---|---|---|
| 316L | Austenitic Stainless Steel | Khanyetso e ntle ea pitting; chesehang | Mecha ea litaba ea acidic, ho pepeseha ha chloride |
| S32205 / S32750 | Duplex / Super Duplex | Matla a phahameng, khanyetso e ntle ea chloride | Offshore, liphaephe tsa brine |
| Inconel 625/825 | Nickel Alloy | Ho hanyetsa ho ikhethang ho li-acid tse matla le alkalis | Desulfurization, litsamaiso tse phahameng tsa mocheso |
| Carbon Steel e nang le Linings | Lined Steel | E boloka chelete e ngata, e sirelelitsoe ke lesela | Oli e nang le sebabole e ngata, mela e tlaase ea khatello |
Ho roala ka holim'a metsi: Tšitiso ea 'Mele Khahlanong le Corrosion
Liaparo tsa ka ntle le tse ka hare li fana ka tšireletso e thibelang lintho tse senyang:
• Coal tar epoxy coating:Mokhoa oa setso oa liphaephe tse patiloeng.
• Fusion Bonded Epoxy (FBE):Ho hanyetsa mocheso o phahameng le ho khomarela ka matla.
• 3-Layer PE / PP Coating:E sebelisoa haholo bakeng sa lipeipi tsa phetiso ea libaka tse telele.
Li-Linings tsa ka hare: Fokotsa ho hanyetsa ha mokelikeli le ho sireletsa khahlanong le ho senyeha ha lebota le ka hare.
Ho lokisoa hantle ha holim'a metsi le ho sebelisoa ke tsa bohlokoa bakeng sa katleho ea liaparo tsena.
Tšireletso ea Cathodic: Electrochemical Anti-Corrosion Technology
Tšireletso ea cathodic e thibela ho bola ha electrochemical ka ho qobella bokaholimo ba lipeipi ho sebetsa joalo ka cathode:
• Sehlabelo sa Anode System: E sebelisa zinki, magnesium, kapa aluminium anode.
• Impressed Current System: E sebelisa mohloli oa matla o ka ntle ho sebelisa motlakase.
Mokhoa ona o atisa ho sebelisoa liphaepheng tse patiloeng le tse ka tlas'a leoatle, hangata li kopantsoe le liphahlo bakeng sa ts'ebetso e ntle ka ho fetisisa.
Tlhokomelo le Tlhokomelo ea Corrosion
Tlhokomelo ea kamehla e thusa ho lemoha ho bola pele ho nako, ho fokotsa likotsi tsa ho se atlehe:
• Lisebelisoa tsa Resistance tsa Motlakase le Electrochemical Noise Monitoring bakeng sa tlhahlobo ea nako ea sebele;
• Ultrasonic Thickness Gauging bakeng sa ho lemoha ho sesa ha lebota;
• Litlankana tsa Corrosion bakeng sa tlhahlobo ea sekhahla sa kutu ha nako e ntse e ea.
Ho theha litlhahlobo tse tloaelehileng, linako tsa ho hloekisa, le kalafo ea lik'hemik'hale li thusa ho boloka botsitso ba lipeipi.
Ho Ikamahanya le Maemo a Indasteri
Netefatsa hore moralo oa lipeipi tsa hau le maano a ts'ireletso a lumellana le melaoana ea machaba:
ISO 21809 - Litekanyetso tsa ho koaela kantle bakeng sa lipeipi indastering ea peterole le ea khase ea tlhaho;
NACE SP0169 - Mekhoa ea tšireletso ea Cathodic;
API 5L / ASME B31.3 - Phaephe ea mela le litekanyetso tsa kaho ea liphaephe.
Qetello: Mokhoa o Kopanetsoeng oa Tšireletso ea Nako e telele
Tšireletso e sebetsang ea kutu ea liphaephe e hloka leano le nang le mekhahlelo e mengata, ho kenyelletsa:
• Khetho e bohlale ea thepa,
• Lits'ebetso tse tiileng tsa ho roala,
• Proactive cathodic tshireletso, le
• Mananeo a tšepahalang a tlhokomelo le tlhokomelo.
Ka ho sebelisa sistimi e felletseng ea taolo ea kutu, basebetsi ba petrochemical ba ka fokotsa ho koaloa ho sa reroang, ho lelefatsa nako ea bophelo ba thepa, le ho netefatsa ts'ebetso e bolokehileng, e sebetsang hantle.
Nako ea poso: May-27-2025