A protective cover for auxiliary anode

Abstract

The invention relates to a protection cover of auxiliary anodes. The protection cover comprises an outer protective guard, an inner protective guard, two flanges, a sealing cap, a base and a supporting rod. A plurality of first through holes are evenly formed in the outer protective guard at intervals. A plurality of second through holes are evenly formed in the inner protective guard at intervals. The two ends of the outer protective guard are each fixedly connected with the corresponding flange. The sealing cap is fixedly arranged at the bottom of the outer protective guard. The base is arranged in the outer protective guard located at the top of the sealing cap in a clamped mode. The inner protective guard is fixedly embedded between the top of the outer protective guard and the base. The supporting rod is arranged in the center of the inner protective guard. One end of the supporting rod is fixed to the base, and the other end of the supporting rod is fixed to the top of the outer protective guard. The one to six to-be-protected auxiliary anodes are evenly arranged in the positions, located on the circumferential side of the supporting rod, in the inner protective guard at intervals. One end of each to-be-protected auxiliary anode is fixed to the base, and the other end of the to-be-protected auxiliary anode is fixed to the top of the outer protective guard. In addition, cables of all the to-be-protected auxiliary anodes all penetrate through the top of the outer protective guard and the corresponding flange and are connected with external cables. The protection cover of the auxiliary anodes is capable of effectively improving the reliability and durability of the auxiliary anodes.

Description

technical field [0001] The invention relates to a protective cover, in particular to an auxiliary anode protective cover. Background technique [0002] The offshore platform is a major infrastructure facility for the development of offshore oil resources, and its construction cost is extremely high. However, due to long-term seawater corrosion of its underwater structure, its reliability and durability have been severely challenged. Therefore, marine structures must be protected against corrosion. The conventional anti-corrosion method in the prior art is to use a sacrificial anode protection method. Although this method can prevent corrosion of marine structures to a certain extent, this method also has insurmountable defects. , mainly includes two aspects: first, this method has a large additional mass, which indirectly increases the cost of offshore platform design, construction and installation; second, this method has a high consumption rate, which indirectly aggravates...

AI Technical Summary

Problems solved by technology

At present, the auxiliary anode of the impressed current system is directly exposed to seawater or located in a single-layer porous shield, so the auxiliary anode is extremely vulnerable to mechanical impact or scratches that cause damage to its surface coating, especially when the flow rate is fast or the sand content is high. In severe sea conditions, the auxiliary anode is subjected to long-term erosion, its surface is easily eroded, the coating is more likely to be damaged, and the ability to resist erosion and wear is poor, which seriously affects the reliability and durability of the auxiliary anode, and also seriously affects the Reliability and durability of the entire impressed current cathodic protection system

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