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Sacrificial anode cathodic protection construction

To prevent corrosion of the pipeline, cathodic protection of sacrificial anode shall be carried out for the pipeline crossing large and medium-sized rivers and the pipeline section with strong soil corrosion at the ground bed. The main construction of sacrificial anode cathodic protection includes the installation of sacrificial anode ground bed, the installation of reference electrode, the installation of test point and the repair of pipeline. The main construction procedures are anode pit excavation, cable welding, reference electrode and test pile installation, anti-corrosion layer repair, inspection and backfilling, including test pile installation steps, cable copper core welding, test pile installation, anti-corrosion layer repair, inspection and fixation. The arrangement of the sacrificial anode has a significant distribution of the potential of the buried pipeline to the subdivision of the ground electric field.

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Application of Aluminum Alloy Sacrificial Anode

Aluminum alloy sacrificial anode is suitable for ships in sea surface materials, corrosion of steel structures in sea surface, cathodic protection of pipelines corroded by industrial equipment, marine technology and port equipment, pipelines in sea mud, port logistics equipment, offshore drilling platforms and soil materials, cables and other equipment. In industrial production, the most common aluminum alloy sacrificial anode is AL-Zn-ln anodizing, which is suitable for cathodic protection of ships, ports and seaports and deep-sea equipment and buildings on the sea surface. Aluminum-zinc-indium sacrificial anode is built by fine-grained and strengthened metal materials such as high-purity aluminum and zinc. Zinc is the key to aluminum alloy sacrificial anode. In aluminum

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Impressed current auxiliary anode cathodic protection

The current emitted by the cathodic protection system enters the soil through the auxiliary anode, and the current flows into the protected pipeline in the soil, and finally promotes the cathode polarization on the surface of the pipeline. In the cathodic protection of the impressed current auxiliary anode, the current will enter the negative electrode of the power supply in the pipeline, thus forming a circuit. In the whole cathodic protection system, the pipeline comes from the cathodic protection environment, because the electrons from the anode will stop corrosion, therefore, it is protected, but the auxiliary anode will corrode due to the oxidation reaction due to the loss of electrons. Cathodic protection detection, cathodic protection on the inner wall of the tank, if it is necessary to measure the potential of cathodic protection,

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