Petroleum, Natural Gas thiab Oilfield Protection

Cathodic kev tiv thaiv yog ib lub tshuab uas tiv thaiv hlau corrosion los ntawm electrochemical cov ntsiab lus thiab yog dav siv nyob rau hauv cov hlau chaw xws li cov kav dej, cia tso tsheb hlau luam thiab deranges nyob rau hauv kev lag luam roj thiab roj. Lub hauv paus ntsiab lus tseem ceeb yog: los ntawm cov khoom siv hluav taws xob sab nraud lossis kev txi anode, cov qauv hlau tiv thaiv tau dhau los ua cov cathode ntawm cov hluav taws xob hluav taws xob, tiv thaiv cov tshuaj tiv thaiv oxidation (corrosion) ntawm cov hlau nto, yog li txuas lub neej kev pab cuam ntawm cov khoom siv.

Kev tiv thaiv cathodic uas nquag siv hauv roj av, roj av thiab roj av tau muab faib ua ob hom: kev tiv thaiv cathodic anode thiab kev tiv thaiv cathodic tam sim no zoo siab.

Sacrificial anode cathodic tiv thaiv:

• Txoj Cai: Cov hlau uas muaj peev xwm tsis zoo (xws li zinc, aluminium, thiab magnesium alloys) yog siv los ua cov anode thiab txuas nrog cov hlau los tiv thaiv. Los ntawm nws tus kheej corrosion, nws muab kev tiv thaiv tam sim no rau cov qauv hlau.
• Nta:

1. Nws tsis tas yuav muaj hluav taws xob sab nraud thiab tsim nyog rau tej thaj chaw deb lossis fais fab - thaj chaw dawb (xws li ib qho -cov kav dej thiab lub tank me me).
2. Nws yog ib qho yooj yim rau nruab thiab tsis tshua muaj nqi txij nkawm, tab sis cov anode yuav tsum tau hloov tsis tu ncua tom qab noj.

Impressed tam sim no cathodic tiv thaiv:

• Txoj Cai:Los ntawm cov khoom siv hluav taws xob sab nraud xws li transformer rectifier, cathodic tam sim no yog siv rau cov hlau tiv thaiv kom tiv thaiv corrosion tam sim no. Lub kaw lus suav nrog cov anodes auxiliary (xws li siab -silicon cam khwb cia hlau, graphite), siv electrodes (rau kev saib xyuas muaj peev xwm), thiab cov khoom siv fais fab.
• Nta:

1. Nws muaj ntau yam kev tiv thaiv thiab kho cov zis tam sim no, ua rau nws tsim nyog rau cov xwm txheej nyuaj xws li ntev - cov kav dej nyob deb thiab pawg tank loj.
2. Yuav tsum muaj hluav taws xob ruaj khov (xws li hluav taws xob hluav taws xob lossis lub hnub ci zog) yuav tsum tau. Thawj qhov kev nqis peev yog qhov siab, tab sis qhov ntev - tus nqi tswj tau.

• Kev sib xyaw:

1. Transformer rectifier

Lub transformer rectifier precisely tswj cov zis tam sim no thiab voltage los muab ib tug ruaj khov cathodic polarization tam sim no rau cov hlau tiv thaiv, ua kom nws muaj peev xwm nyob rau hauv ib tug corrosion-resistant thiab nyab xeeb ntau yam.

2. Anode av txaj:

Lub luag haujlwm ntawm lub koom haum anode yog hloov cov zis ncaj qha tam sim no los ntawm cov khoom siv hluav taws xob ncaj qha los ntawm nruab nrab mus rau cov qauv hlau tiv thaiv.

3. Siv electrode:

• Siv electrode rau kev ntsuas: Saib xyuas lub peev xwm ntawm cov qauv tiv thaiv.
• Tswj kev siv hluav taws xob: Nws muab cov cim kev tswj hwm rau qhov hloov pauv hloov pauv hloov pauv hloov pauv hloov pauv tam sim no, kom ntseeg tau tias cov qauv tiv thaiv ib txwm nyob rau hauv kev tiv thaiv zoo.

4. Kev saib xyuas qhov system:

Tiag -lub sij hawm xa cov ntaub ntawv muaj peev xwm thiab tam sim no los ceeb toom ntawm kev pheej hmoo corrosion tsis zoo.