Cathodic Protection Technology hauv Crude Oil Tank Farms

Daim ntawv thov ntawm cathodic tiv thaiv technology nyob rau hauv crude roj tank ua liaj ua teb yog feem ntau yog tsom rau tiv thaiv electrochemical corrosion ntawm lub tank hlau lug, tshwj xeeb tshaj yog nyob rau hauv cov cheeb tsam xws li lub tank hauv qab daim hlau, sab hauv tank phab ntsa, thiab faus pipelines.

• Sab nrauv phab ntsa ntawm saum toj kawg nkaus tank hauv qab daim hlau (av-qhov chaw sib cuag)
• Sab hauv tank phab ntsa
• Cov kav dej faus hauv lub tank ua liaj ua teb
• Underground cia tanks

1. Txoj kev Sacrificial Anode

Txoj Cai:

• Txhim kho ntau cov hlau ua haujlwm (piv txwv li, magnesium, zinc, aluminium alloy anodes) txuas nrog lub tank tiv thaiv steel; lub anode corrodes nyiam dua los tiv thaiv lub tank.

Application Scenario:

• Sab hauv qab daim hlau ntawm cov tso tsheb hlau luam me me (yuav tsum muaj kev tiv thaiv tam sim no).
• Sab hauv qab daim hlau ntawm cov roj crude tanks (ntsev -muaj cov dej tso)
• Kev tiv thaiv ib ntus ntawm cov phab ntsa sab hauv thaum ntsuas dej hiav txwv

Qhov zoo:

• Tsis muaj hluav taws xob sab nraud yuav tsum tau, kev teeb tsa yooj yim, tus nqi tu qis.

Qhov tsis zoo:

• Lub sijhawm tiv thaiv tsawg (anodes yuav tsum tau hloov pauv raws sijhawm), irreplaceable thaum siv rau sab nraud tank hauv qab daim hlau.

2. Txaus siab rau txoj kev tam sim no

Txoj Cai:

• Siv cathodic tam sim no rau lub tank los ntawm kev siv hluav taws xob sab nraud DC. Pab anodes (xws li, siab- silicon cam khwb cia hlau, MMO titanium anodes, saj zawg zog anodes) tso zis tam sim no, tsim ib tug Circuit Court los ntawm cov av, tank hauv qab daim hlau, thiab cathode cables induce cathodic polarization ntawm lub tank hauv qab nto.

Application Scenario:

• Sab hauv lub tank hauv qab daim hlau, sab hauv phab ntsa ntawm cov dej ntsev- muaj cov tso tsheb hlau luam.
• Sab nraud hauv qab daim hlau ntawm saum toj kawg nkaus tanks.

Qhov zoo:

• Adjustable tam sim no tso zis, tu yooj yim, kev pab lub neej ntev.

Qhov tsis zoo:

• Kev nqis peev siab pib, kev siv hluav taws xob tas li yuav tsum tau ua, yuav tsum tau saib xyuas tsis tu ncua.

1. Sacrificial Anodes:

• Magnesium alloy (Mg), zinc alloy (Zn), lossis aluminium alloy (Al) anode blocks / ribbon anodes.
• Aluminium alloy sacrificial anodes: Rau sab hauv tank phab ntsa tiv thaiv
• Magnesium alloy sacrificial anodes: Cathodic tiv thaiv rau sab nraud tank hauv qab daim hlau

2. Impressed Current Systems:

• MMO mesh anodes, hloov tau anodes rau sab nraud tank hauv qab phaj cathodic tiv thaiv
• Siab -silicon cam khwb cia hlau anodes, MMO tubular anodes, hloov tau yooj yim anodes rau faus kav.
• Transformer rectifier: Tsis siv neeg kho cov zis tam sim no thiab voltage.
• Siv cov khoom siv hluav taws xob: Cov tooj liab / tooj liab sulfate (Cu/CuSO₄), siab -purity zinc, los yog silver / silver chloride electrodes.
• Anode hlws ris thawv, cathode hlws ris thawv
• Cables rau kev sib txuas hluav taws xob thoob plaws hauv qhov kev txaus siab tam sim no

3. Intelligent Cathodic Protection Monitoring System:

• Chaw taws teeb saib xyuas ntawm qhov system khiav hauj lwm tsis, cov chaw taws teeb tswj ntawm ib feem functions, thiab kev ua hauj lwm parameter hloov.

1. Cov ntaub ntawv tseem ceeb:

• Sau cov av tiv thaiv, cov khoom siv tank, hom txheej, cov ntaub ntawv tshawb fawb geological, tank foundation qauv, qhov chaw teeb duab kos duab, thiab lwm yam.

2. Tsim Kev Npaj Tiv Thaiv:

• Xaiv cov kev daws teeb meem tsim nyog raws li cov ntaub ntawv, npaj cov phiaj xwm ua kom tiav, thiab sau cov npe khoom / khoom siv.

3. Kev teeb tsa:

• Kev txi anodes: sib npaug ntawm lub tank hauv qab, ncaj qha welded lossis cable- txuas.
• Txaus siab rau tam sim no: Nruab anode hauv av txaj, siv electrodes, hlws ris thawv, nteg cables, teeb tsa rectifiers.

4. Kev Ua Haujlwm & Saib Xyuas:

• Kho qhov ntsuas kom ua tau raws li qhov yuav tsum tau muaj kev tiv thaiv (feem ntau -0.85V vs. Cu/CuSO₄ rau steel tso tsheb hlau luam).

5. Kev tu tsis tu ncua:

• Kev tshuaj xyuas niaj hnub, cov ntaub ntawv ua haujlwm ntawm cov khoom siv, thiab kev daws teeb meem raws sij hawm..

1. International:

• API RP 651-2014 Cathodic Kev Tiv Thaiv Kev Tiv Thaiv Sab saum toj Petroleum Cia Tank.

2. Hauv tsev:

• GB / T 50393-2017 Txuj Ci Txuj Ci rau Anticorrosion Engineering ntawm Steel Petroleum Storage Tanks

• 2.25- lab-cubic-meter txhawb nqa tawm- Island tank ua liaj ua teb project rau Shandong Yulong Island Refining-Chemical Integration Project (Phase I).
• 3- lab- cubic-meter crude oil storage project ntawm Shandong Port Yantai Port West Port Area.
• 5-million-cub-meter CNOOC Dongying Commercial Crude Oil Reserve Project.
• 1.6- lab-cub-meter Phase III Roj Tank Project ntawm Shandong Rizhao Chaw nres nkoj.
• Shandong Chaw nres nkoj Group Binzhou Chaw nres nkoj Liquefied Product Storage Zone Project (Berths 6#-7#).
• Zhoushan Waidiao Island Guanghui Roj Cia Base Tank Project.

Cov txheej txheem kev tiv thaiv cathodic tsim tau zoo tuaj yeem txuas ntxiv cov roj av roj tank kev pab cuam lub neej (feem ntau tshaj 20 xyoo) thaum txo kev nyab xeeb thiab ib puag ncig kev pheej hmoo los ntawm corrosion leaks. Cov ntawv thov siv tau feem ntau sib txuas cov anodes anodes nrog kev txaus siab tam sim no, hloov kho raws li ib puag ncig.